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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Sound Playback Module
Voice board, recording, recorder, playback, mic, sound, audio loudspeaker.
Out of stockCorsair 2000D AIRFLOW ITX
Mini-ITX, vertical chamber, RTX-class GPU support. Footprint of a bookshelf speaker.
BenQ MOBIUZ EX271 27-Inch QHD 180Hz Fast IPS Gaming Monitor
[Monitor] BenQ MOBIUZ EX271 27-Inch QHD 180Hz Fast IPS Gaming Monitor Level up your gaming experience with 2560 x 1440 QHD resolution, 180Hz refresh rate, 1ms MPRT response time, and AMD FreeSync Premium. Features HDRi intelligent auto-brightness tuning and built-in 2.1 channel treVolo sound with integrated subwoofer. ⭐ Key Features - 27" QHD (2560 x 1440) Fast IPS panel - Ultra-smooth 180Hz refresh rate with 1ms MPRT - Proprietary HDRi technology optimizes HDR images based on room lighting - 2.1 channel treVolo speakers with 5W woofer and custom audio modes - Light Tuner with 20 color level adjustments to spot hidden enemies 📋 Technical Specifications - Panel: 27" Fast IPS - Refresh Rate: 180Hz - Response Time: 1ms (MPRT) / 2ms (GtG) - FreeSync: AMD FreeSync Premium - Video Ports: 2x HDMI 2.0, 1x DisplayPort 1.4 📦 Package Includes - 1 x BenQ MOBIUZ EX271 Gaming Monitor - 1 x Ergonomic Tilt/Swivel Stand, DP Cable, Power Cable
2S 4A Type-C Lithium Battery Charging Module – 8.4V Step-Up Boost Charger for 18650 Lipo
[Step UP Buck Converter] 2S 4A Type-C Lithium Battery Charging Module – 8.4V Step-Up Boost Charger for 18650 The 2S 4A Type-C Lithium Battery Charging Module is a compact step-up charging board designed for charging 2-cell series (2S) 18650 Li-ion/Li-Po battery packs. It accepts a 3–6V DC input through USB Type-C and boosts the voltage to 8.4V, the required full-charge voltage for a 2S lithium battery pack. The 4A specification refers to the maximum input current version. According to available product specifications, the corresponding charging current is approximately 2.2A, rather than 4A. ⭐ Key Features Designed for 2S lithium-ion/Li-Po battery packs Suitable for 2 × 18650 cells connected in series USB Type-C input 3–6V DC input Recommended input: 3.7V / 5V Step-up/boost charging circuit 8.4V charging voltage 4A maximum input-current version Approximately 2.2A charging current Automatic recharge function Battery charging protection features Compact PCB design LED charging/status indication Suitable for DIY battery and portable-power projects 📋 Technical Specifications Product Type: 2S Lithium Battery Step-Up Charging Module Battery Configuration: 2S – 2 cells in series Compatible Battery: 3.6V/3.7V Li-ion / Li-Po Nominal Battery Pack Voltage: 7.4V Full-Charge Voltage: 8.4V Input Voltage: DC 3–6V Recommended Input: DC 3.7V / 5V Maximum Input Current: 4A Charging Current: Approximately 2.2A Charging Interface: USB Type-C Charging Mode: Constant-current / constant-voltage Board Size: Approximately 39 × 18 × 6.3mm Operating Temperature: -40°C to +85°C LED Indicators: Charging / fully charged or constant-voltage status 🔋 Charging Performance For the 2S 4A version: USB Type-C 5V → Boost Charging Module → 8.4V → 2S Battery Pack The module draws up to approximately 4A from the input, while the specified charging current is approximately 2.2A. This distinction is important when selecting the USB power adapter. 🔧 Applications 2S 18650 battery packs 7.4V Li-ion battery packs 2S Li-Po battery packs DIY power banks Portable electronics Bluetooth speaker battery systems Robotics projects Solar charging applications Electronic prototyping Portable audio equipment Electric fan projects Type-C rechargeable equipment Custom battery charging systems 🛠️ How It Works The module uses a boost/step-up charging circuit to convert the lower USB Type-C input voltage into the 8.4V charging voltage required for a 2S lithium battery pack. Example: 5V Type-C Input → Step-Up Circuit → 8.4V Charging Output → 2S 18650 Battery A 2S battery pack consists of two lithium cells connected in series: 3.7V + 3.7V = 7.4V nominal4.2V + 4.2V = 8.4V fully charged 💡 LED Indicators The module uses status indicators to show the charging condition: CR: Charging OK: Fully charged / constant-voltage stage ⚠️ Important Notes This module is intended for 2S battery packs only. Do not connect a single 18650 cell directly to the 8.4V charging output. The two cells should be properly matched and in good condition. Do not exceed the 6V maximum input voltage. A suitable Type-C power source is required to supply the necessary input current. The 4A rating is the input-current rating, not the battery charging current. The specified charging current for this 2S 4A version is approximately 2.2A. This charging module should not automatically be considered a replacement for a dedicated 2S BMS/protection board. Use appropriate battery protection where required. Check the PCB polarity and connection markings before connecting the battery. Do not short-circuit the input or output. Use properly matched lithium cells for safe and reliable charging. Keep the module adequately ventilated during higher-current operation. 📦 Package Includes 1 × 2S 4A Type-C Step-Up Boost Lithium Battery Charging Module – 8.4V
48mm Square Internal Magnet Speaker – 4Ohms 5W
[Speakers] 48mm Square Internal Magnet Speaker – 4Ω 5W The 48mm Square Internal Magnet Speaker is a compact full-range audio driver designed for clear and efficient sound reproduction in space-constrained applications. With a 4Ω impedance and 5W power rating, this speaker is suitable for Bluetooth speakers, portable audio systems, DIY speaker projects and embedded electronic devices. Its square frame allows convenient mounting inside compact enclosures and panels. ⭐ Key Features Compact square speaker design 4Ω impedance 5W power rating Internal magnet construction Full-range audio output Compact size for space-limited applications Easy to install inside speaker enclosures Suitable for DIY and commercial audio projects Lightweight and practical design 📋 Technical Specifications Speaker Type: Internal Magnet Speaker Shape: Square Speaker Size: 48mm class Model: 4Ω 5W Impedance: 4Ω Power Rating: 5W Magnet Type: Internal Magnet Audio Type: Full-range Mounting Type: Panel / Enclosure Mount Dimensions: 47 × 29 × 23mm Application: Compact audio systems, DIY electronics and portable speakers 🔧 Applications Bluetooth speaker systems Portable speakers DIY speaker projects Compact audio enclosures Embedded audio systems Intercom systems Alert and notification devices Educational electronics projects Consumer electronic devices Custom audio projects 🛠️ Installation Connect the speaker to a compatible amplifier with a 4Ω output. Ensure the amplifier's output power is suitable for the speaker's 5W rating. Mount the speaker securely inside the enclosure to reduce unwanted vibration. Observe correct speaker polarity when connecting multiple speakers. 📦 Package Includes 1 × 48mm Square Internal Magnet Speaker Impedance: 4Ω Power: 5W ⚠️ Precautions Do not exceed the 5W rated power for prolonged operation. Use a compatible 4Ω amplifier. Avoid short-circuiting the speaker terminals. Keep away from moisture, excessive heat and physical damage. Ensure proper mounting to minimize vibration and unwanted noise. Actual sound quality depends on the amplifier, enclosure and application.
Out of stockGold AP-55 TPA3116D2 2×50W Bluetooth Stereo Digital Amplifier Board with USB, TF Card, FM & Remote
[Amplifier Board] Gold AP-55 TPA3116D2 2×50W Bluetooth Stereo Digital Amplifier Board with USB, TF Card, FM & Remote The Gold AP-55 is a compact Class-D stereo digital audio amplifier board based on the TPA3116D2 amplifier IC, designed for DIY Bluetooth speakers, home audio systems, portable speakers, bookshelf speakers, multimedia systems, and custom audio projects. Available product listings consistently identify the AP-55 as a dual-channel 50W + 50W amplifier, with a DC input range around 8–24V or 12–24V depending on the listing/version. The AP-55 combines the power amplifier with a multimedia player supporting Bluetooth 5.0, USB, TF/SD card, FM radio and AUX input. The Bluetooth device name is reported as GD-82EM, while the FM tuner covers 87.5–108.0MHz. It also includes an infrared remote control and a digital display for convenient operation. The TPA3116D2 Class-D amplifier provides efficient stereo amplification, making the board suitable for building compact but powerful audio systems. One detailed listing specifies support for 4Ω–8Ω speakers, with the commonly advertised maximum output of 50W per channel. ⭐ Key Features Gold AP-55 amplifier module TPA3116D2 Class-D amplifier IC 50W + 50W dual-channel stereo output Supports 4Ω–8Ω speakers Bluetooth 5.0 wireless audio Bluetooth device name: GD-82EM Built-in USB music player Built-in TF / SD card player Built-in FM radio FM frequency range 87.5–108.0MHz 3.5mm AUX input Infrared remote control Digital display Supports MP3 / WMA / WAV Power-off memory function Remembers the previous song and volume Compact design for DIY speaker projects High-efficiency Class-D amplification 📋 Technical Specifications Product Type: Stereo Class-D Digital Amplifier Board Model: Gold AP-55 Amplifier IC: TPA3116D2 Amplifier Class: Class-D Number of Channels: 2 / Stereo Output Power: 50W + 50W Maximum Total Output: 100W Speaker Impedance: 4Ω–8Ω Input Voltage: DC 8–24V (some listings specify 12–24V; verify the exact board version before use) Bluetooth Version: 5.0 Bluetooth Name: GD-82EM Bluetooth Range: Up to approximately 10–15m under suitable conditions Audio Formats: MP3 / WMA / WAV USB Support: Yes TF/SD Card Support: Yes FM Radio: Yes FM Frequency: 87.5–108.0MHz AUX Input: 3.5mm / Wired Audio Input Remote Control: IR Remote Remote Range: Approximately 4–7m Display: Digital Display Power-Off Memory: Yes Memory Function: Last song and volume Audio Input Modes: Bluetooth / USB / TF Card / FM / AUX Output: Dual-Channel Stereo Efficiency: Greater than 90% according to one detailed listing SNR: Approximately 102dB according to one detailed listing Distortion: Below 0.1% at normal listening levels according to one detailed listing Board Size: Approximately 70 × 50 × 20mm with shell, according to one listing 🎵 Audio & Playback Functions The AP-55 can switch between Bluetooth, USB, TF/SD Card, FM Radio and AUX sources. When Bluetooth mode is selected, users can pair a phone or other compatible device with GD-82EM. USB and TF/SD cards can be used for local music playback, while AUX provides a wired audio input. 📻 FM Radio The built-in FM tuner supports the 87.5–108.0MHz broadcast band. FM stations can be searched and selected using the onboard controls or remote control. 🎛️ Controls & Remote The module provides controls for functions such as previous track, next track, volume up, volume down, play/pause, mode selection and FM station selection. The infrared remote provides additional wireless control of playback, volume, mode and other supported functions. 🔧 Applications DIY Bluetooth Speakers High-Power Bluetooth Speaker Projects Portable Speaker Systems Bookshelf Speaker Systems Home Audio Projects Multimedia Speaker Systems USB MP3 Speaker Systems TF/SD Card Music Players FM Radio Speaker Projects Car Audio Projects Custom Wooden Speaker Cabinets Desktop Audio Systems Electronics DIY Projects 🛠️ Installation Connect a suitable DC power supply within the specified voltage range and observe the correct polarity. Connect the left and right speaker outputs to compatible 4Ω–8Ω speakers. Select Bluetooth, USB, TF/SD, FM or AUX according to the desired audio source. For maximum advertised output, a suitable 24V high-current power supply is recommended by one vendor; at lower supply voltages, available output power will be lower. 📦 Package Includes 1 × Gold AP-55 TPA3116D2 2×50W Bluetooth Amplifier Board 1 × IR Remote Control 1 × Required Connecting Wires/Cables (package contents may vary by seller/version) ⚠️ Precautions Verify the exact input voltage requirement of your AP-55 version before powering it. Do not exceed 24V DC where the board specification limits input to 24V. Check power polarity carefully before connection. Use speakers with a compatible 4Ω–8Ω impedance. Do not short-circuit the speaker output terminals. Ensure adequate ventilation during high-power operation. Use a suitable high-current power supply for high-output operation. Do not connect the speaker outputs together or directly to ground. Keep the board away from moisture and conductive materials. Incorrect wiring or excessive voltage can permanently damage the amplifier IC.
45mm 1.75-Inch 4Ohms 3W Internal Magnet Speaker with Frame
[Speakers] 45mm Internal Magnet Speaker with Frame – 4Ω 3W 45×23×23mm The 45mm Internal Magnet Speaker with Frame (1.75-Inch) is a compact and efficient audio driver designed for DIY electronics, portable audio devices, multimedia systems, toys, alarms, intercoms, and embedded audio applications. Featuring an internal magnet structure and durable mounting frame, this speaker provides clear and stable sound output while maintaining a compact form factor. With a compact size of 45×23×23mm, 4Ω impedance, and 3W power rating, this speaker is suitable for small amplifier projects and electronic devices where space is limited. Its built-in frame allows convenient installation in custom enclosures, panels, and electronic products. ⭐ Key Features 45mm (1.75-Inch) speaker size 4Ω impedance 3W power rating Internal magnet design Durable mounting frame Compact 45×23×23mm construction Clear and stable sound output Lightweight and space-saving Suitable for low-power audio applications Easy to install in custom enclosures Ideal for DIY, repair and OEM applications 📋 Technical Specifications Product Type: Internal Magnet Speaker Speaker Size: 45mm (1.75 Inch) Dimensions: 45 × 23 × 23mm Impedance: 4Ω Power Rating: 3W Magnet Type: Internal Magnet Frame Type: With Mounting Frame Speaker Type: Dynamic Full Range Speaker Audio Type: Mini Full Range Speaker Mounting: Frame / Panel Mount Application: Compact Audio & Embedded Electronics 🔧 Applications DIY Speaker Projects Portable Audio Devices Bluetooth Speaker Projects Multimedia Speaker Systems Alarm Systems Toys and Sound Modules Intercom Systems Embedded Electronics Educational Electronics Kits Replacement Speaker Repairs Smart Gadgets OEM Product Manufacturing Mini Amplifier Projects 🛠️ Installation Mount the speaker securely inside the required enclosure or panel using its mounting frame. Connect it to a compatible amplifier with an output suitable for 4Ω speakers and a power rating appropriate for the 3W speaker. Proper mounting helps reduce unwanted vibration and improves overall sound performance. 📦 Package Includes 1 × 45mm Internal Magnet Speaker with Frame – 4Ω 3W ⚠️ Precautions Match the 4Ω impedance with the amplifier output. Do not exceed the 3W rated power. Do not apply direct DC voltage to the speaker. Ensure correct wiring polarity during installation. Avoid exposure to moisture and excessive dust. Mount securely to prevent vibration and unwanted noise. Do not apply physical pressure to the speaker cone or diaphragm. Use a compatible audio amplifier module for proper operation.
2 Inch 4 Ohms 5Watt Internal Magnet Speaker with Frame
[Speakers] 2-Inch Internal Magnet Speaker with Frame – 53×29×23mm 4Ω 5W The 2-Inch Internal Magnet Speaker with Frame is a compact and efficient audio driver designed for DIY electronics, portable audio devices, alarms, toys, embedded systems, and other space-constrained applications. Featuring an internal magnet design and durable frame construction, this speaker provides clear and balanced sound output while maintaining a compact footprint. With dimensions of 53×29×23mm, 4Ω impedance, and a 5W power rating, this speaker is suitable for small amplifier projects and electronic devices requiring a compact audio solution. The mounting frame makes installation convenient in custom enclosures and equipment. ⭐ Key Features 2-Inch compact speaker design Internal magnet structure 4Ω impedance 5W power rating Durable metal frame construction Clear and balanced sound output Compact and space-saving design Easy mounting with frame and screw slots Suitable for low and medium-power audio applications Ideal for DIY and OEM applications 📋 Technical Specifications Product Type: Dynamic Internal Magnet Speaker Speaker Size: 2 Inch Dimensions: 53 × 29 × 23mm Impedance: 4Ω Power Rating: 5W Magnet Type: Internal Magnet Magnet Material: Ferrite Shape: Rectangular Frame Type: Metal Frame Cone Material: Paper / Mylar Diaphragm depending on variant Speaker Type: Full Range / Dynamic Speaker Mounting: Frame with Screw Slots Application: Compact Audio & Embedded Electronics 🔧 Applications DIY Speaker Projects Portable Audio Devices Bluetooth Speaker Projects Alarm Systems Toys and Sound Modules Intercom Systems Embedded Electronics Educational Electronics Kits Replacement Speaker Repairs Smart Gadgets OEM Product Manufacturing Mini Amplifier Projects 🛠️ Installation Connect the speaker to a compatible amplifier output matching the speaker's 4Ω impedance and 5W power rating. Secure the speaker firmly using the mounting frame to reduce unwanted vibration and noise during operation. 📦 Package Includes 1 × 2-Inch Internal Magnet Speaker with Frame – 4Ω 5W ⚠️ Precautions Match the 4Ω impedance with the amplifier output. Do not exceed the 5W rated power. Avoid applying direct DC voltage to the speaker. Avoid exposure to moisture and excessive humidity. Mount the speaker securely before operation. Do not apply physical pressure to the speaker cone or diaphragm. Avoid short circuits at the speaker terminals. Keep the speaker away from excessive heat and magnetic interference.
2.25-Inch 8ohms 8W Full Range Speaker for Compact Audio Applications
[Speakers] 2.25-Inch 8Ω 8W Full Range Speaker for Compact Audio Applications The 2.25-Inch 8Ω 8W Full Range Speaker is a compact and efficient audio driver designed for small electronic and embedded sound applications. Featuring an 8Ω impedance and 8W power rating, this speaker delivers clear and balanced sound output while maintaining low power consumption and excellent efficiency. Its compact size makes it ideal for projects where installation space is limited, including portable speakers, DIY electronics, toys, alarm systems, intercom devices, and mini speaker enclosures. The full-range design allows it to reproduce a broad range of audio frequencies, making it suitable for both voice and music playback applications. Built with durable materials and designed for reliable long-term performance, this speaker is an excellent choice for electronics hobbyists, engineers, and product developers working on custom audio projects. ⭐ Key Features 2.25-Inch compact speaker driver 8Ω impedance 8W power rating Full-range audio reproduction Clear and balanced sound output Lightweight and compact design Easy to mount in enclosures and panels Suitable for low to medium-power audio applications Durable construction for long-term use Ideal for DIY and embedded audio systems 📋 Technical Specifications Product Type: Full Range Speaker Speaker Size: 2.25 Inch Impedance: 8Ω Power Rating: 8W Speaker Type: Full Range Mounting Type: Enclosure / Panel Mount Application Type: Audio Output 🔧 Applications Portable Speaker Systems DIY Audio Projects Bluetooth Speaker Modules Toys and Educational Kits Alarm and Notification Systems Embedded Electronic Devices Mini Amplifiers and Sound Modules Intercom Systems Robotics Projects Custom Speaker Enclosures ⚠️ Precautions Do not exceed the 8W rated power. Use an amplifier compatible with an 8Ω speaker load. Avoid exposure to moisture and excessive dust. Mount securely to minimize vibration and distortion. Do not apply direct pressure on the speaker cone. 📦 Package Includes 1 × 2.25-Inch 8Ω 8W Full Range Speaker
57mm (2.25-Inch) Internal Magnet Speaker 4Ohms 3W Full Range Audio Speaker
[Speakers] 57mm (2.25-Inch) Internal Magnet Speaker – 4Ω 3W Full Range Audio Speaker The 57mm (2.25-Inch) Internal Magnet Speaker is a compact and reliable full-range audio speaker designed for DIY electronics, multimedia devices, embedded sound systems, and portable audio applications. Featuring a 4Ω impedance and 3W power rating, this speaker delivers clear and balanced sound output while maintaining a slim and lightweight design. Its internal magnet structure provides a compact profile, making it ideal for applications where installation space is limited. The durable mounting frame allows easy integration into speaker enclosures, control panels, intercom systems, audio modules, and custom electronic projects. Designed for consistent audio performance, this speaker is suitable for voice playback, music, alerts, and general audio output in both portable and embedded electronic devices. ⭐ Key Features 57mm (2.25-Inch) compact speaker 4Ω impedance 3W power rating Internal magnet design Full-range audio reproduction Built-in mounting frame Clear and balanced sound output Compact and lightweight construction Easy installation in custom enclosures Suitable for portable and embedded audio applications Ideal for DIY electronics and speaker projects 📋 Technical Specifications Product Type: Internal Magnet Speaker Speaker Size: 57mm (2.25 Inch) Impedance: 4Ω Power Rating: 3W Speaker Type: Full Range Magnet Type: Internal Magnet Frame Type: With Mounting Frame Mounting: Frame / Panel Mount Application: Embedded Audio Systems 🔧 Applications DIY Electronics Projects Audio Modules & Music Players Intercom and Communication Systems Toys and Educational Devices Portable Audio Systems Alarm and Notification Devices Embedded Audio Applications Mini Speaker Enclosures Multimedia Devices Robotics and Automation Projects ⚠️ Precautions Do not exceed the 3W rated power. Use an amplifier compatible with a 4Ω speaker load. Ensure proper wiring polarity during installation. Avoid exposure to moisture and dust. Mount securely to reduce vibration noise. Do not apply direct pressure on the speaker cone. 📦 Package Includes 1 × 57mm (2.25-Inch) 4Ω 3W Internal Magnet Full Range Speaker
45mm (1.75-Inch) Internal Magnet Speaker 2 Ohms 10W Full Range Audio Speaker
[Speakers] 45mm (1.75-Inch) Internal Magnet Speaker – 2Ω 10W Full Range Audio Speaker The 45mm (1.75-Inch) Internal Magnet Speaker is a compact and powerful audio driver designed for DIY electronics, portable speakers, multimedia devices, toys, embedded audio systems, and custom speaker enclosures. Featuring a 2Ω impedance and 10W power rating, this speaker provides strong audio output when paired with a compatible amplifier. Its internal magnet design provides a compact profile while maintaining efficient magnetic performance. The built-in mounting frame makes installation easy in custom enclosures and electronic devices. With its 2Ω low-impedance configuration, this speaker is suitable for compatible Class-D amplifier modules where higher output power is required from a compact speaker driver. ⭐ Key Features 45mm (1.75-Inch) compact speaker 2Ω impedance 10W power rating Internal magnet design Full-range audio reproduction Compact and lightweight construction Built-in mounting frame Clear and powerful sound output Easy to install in custom enclosures Suitable for portable and embedded audio applications Ideal for DIY speaker projects 📋 Technical Specifications Product Type: Internal Magnet Speaker Speaker Size: 45mm (1.75 Inch) Impedance: 2Ω Power Rating: 10W Speaker Type: Full Range Magnet Type: Internal Magnet Frame Type: Mounting Frame Mounting: Frame / Panel Mount Application: Embedded & Portable Audio 🔧 Applications DIY Bluetooth Speaker Projects Portable Speaker Systems Mini Audio Amplifiers Multimedia Devices Toys and Educational Kits Intercom Systems Alarm and Notification Systems Embedded Audio Devices Custom Speaker Enclosures Robotics Projects Electronic Projects ⚠️ Precautions Use an amplifier that supports a 2Ω load. Do not exceed the 10W rated power. Check amplifier output impedance before connecting. Observe correct speaker polarity during installation. Avoid excessive mechanical pressure on the speaker cone. Keep away from moisture and excessive dust. Mount securely to minimize unwanted vibration and distortion. 📦 Package Includes 1 × 45mm (1.75-Inch) 2Ω 10W Internal Magnet Full Range Speaker
2.25 Inch 4 Ohm 10 Watt Full Range Speaker with Neodymium Magnet
[Speakers] 2.25-Inch Speaker Driver • 4 Ohm Impedance • 10W Power Rating • Neodymium Magnet • Compact Full Range Audio Speaker The 2.25 Inch 4 Ohm 10 Watt Full Range Speaker with Neodymium Magnet is a compact and high-performance speaker driver designed for portable audio systems, DIY speaker projects, multimedia devices, embedded electronics, and custom sound enclosures. Featuring a powerful neodymium magnet, this speaker delivers clear vocals, balanced midrange, and improved bass response while maintaining a lightweight and compact design. With a 4 ohm impedance and 10 watt power rating, the speaker is suitable for use with small audio amplifiers, Bluetooth amplifier modules, DIY portable speakers, mini sound systems, toys, alarm systems, educational kits, and embedded electronic devices. The full-range design allows it to reproduce a wide spectrum of audio frequencies without requiring additional tweeters for many compact applications. Its durable construction and lightweight neodymium magnet assembly make it ideal for applications where both performance and space efficiency are important. ⭐ Features Compact 2.25-inch full range speaker Powerful neodymium magnet 4 ohm impedance 10 watt power rating Clear and balanced sound output Enhanced vocal clarity and midrange performance Lightweight and compact construction Easy to mount in custom enclosures Suitable for portable and embedded audio systems Ideal for DIY electronics and audio projects 📋 Technical Specifications Product Type: Full Range Speaker Driver Speaker Size: 2.25 Inch Impedance: 4 Ohm Power Rating: 10 Watt Magnet Type: Neodymium Speaker Type: Full Range Mounting Type: Enclosure / Panel Mount Application Type: Audio Output Frame Material: Metal Cone Material: Paper Composite Color: Black 🔧 Applications Suitable for: Portable Speaker Systems Bluetooth Speakers DIY Audio Projects Mini Sound Systems Multimedia Devices Toys and Educational Kits Alarm and Notification Systems Embedded Electronic Devices Mini Amplifiers Sound Modules Intercom Systems Custom Speaker Enclosures Robotics and Electronics Projects 📦 Package Includes 1 × 2.25 Inch 4 Ohm 10 Watt Full Range Speaker with Neodymium Magnet ⚠️ Precautions Do not exceed the 10W rated power. Use an amplifier compatible with 4 ohm speakers. Avoid exposure to moisture, water, and excessive dust. Mount the speaker securely to minimize unwanted vibration. Do not apply direct pressure to the speaker cone or surround.
Passive Radiator Bass Diaphragm Rubber Speaker Vibration Plate for DIY Speakers
[Passive Radiator] 🔊 Oval, Square & Round Passive Radiator Bass Diaphragm Rubber Speaker Vibration Plate for DIY Speakers Deep Bass Enhancement • Passive Design • No External Power Required • Ideal for DIY Speaker Projects The Rubber Passive Radiator Bass Diaphragm is a high-quality auxiliary bass vibration plate designed to significantly improve the low-frequency response of speaker systems. Available in Oval, Square, and Round shapes with multiple sizes, this passive radiator enhances bass performance without requiring additional power or amplifier channels. Unlike conventional speakers, a passive radiator does not contain a voice coil or magnet. Instead, it utilizes the air pressure generated by the active speaker driver to vibrate, producing deeper, richer bass while minimizing distortion and unwanted cabinet resonance. Manufactured using premium rubber and durable ABS materials, these passive radiators provide excellent flexibility, durability, and long service life. They are ideal for upgrading Bluetooth speakers, portable speakers, multimedia speakers, subwoofers, soundbars, and custom DIY audio projects. Whether you're repairing an existing speaker or building a custom enclosure, these passive bass diaphragms help deliver powerful low-frequency performance while maintaining compact enclosure sizes. ⭐ Features Premium quality rubber passive radiator Available in Oval, Square & Round shapes Produces deep and powerful bass response No power supply or wiring required Improves low-frequency performance Reduces speaker distortion Durable rubber suspension Lightweight and compact design Easy to install Ideal for DIY speaker upgrades and repairs 📋 Technical Specifications Product Type: Passive Radiator Bass Diaphragm Material: Rubber + ABS Plastic+Metal Shape: Oval / Square / Round (Depending on Selected Variant) Available Sizes: Multiple Sizes (2040 to 6090 Series) Operation: Passive (No Voice Coil or Magnet) Power Requirement: None Installation Type: Speaker Cabinet Mount Application: Low Frequency Bass Enhancement Color: Black 🔧 Applications Suitable for: Bluetooth Speakers Portable Speakers DIY Speaker Projects Multimedia Speakers Home Audio Systems Bookshelf Speakers Soundbars Subwoofers Wireless Speakers Audio System Repairs Custom Speaker Cabinets DIY Audio Enclosures 📦 Package Includes 1 × Passive Radiator Bass Diaphragm (Size & Shape as Selected) ⚠️ Note This is a passive radiator only and does not contain a voice coil, magnet, or electrical terminals. Product images are for reference only. The actual product may vary slightly in appearance depending on the selected size, shape, or manufacturing batch.
Winway 18650 Lithium-Ion Rechargeable Battery 3.7V 2600mAh 9.62Wh
[Lithium Battery Cell] The Winway 18650 Lithium-Ion Rechargeable Battery is a high-performance cylindrical Li-ion cell designed to deliver reliable and long-lasting power for a wide range of electronic devices. With a nominal voltage of 3.7V, 2600mAh capacity, and 9.62Wh energy rating, it provides consistent power output for both high-drain and low-drain applications. Manufactured using premium lithium-ion cell technology, this battery offers excellent energy density, stable discharge performance, and long cycle life. Its standard 18650 form factor makes it compatible with most battery holders, chargers, and devices designed for 18650 cells. The Winway 2600mAh battery is widely used in rechargeable flashlights, emergency lights, battery packs, power banks, Bluetooth speakers, portable fans, solar lighting, DIY electronics, robotics, and various battery-operated devices. Designed for durability and dependable performance, this battery delivers excellent backup time while maintaining stable voltage throughout the discharge cycle. ⭐ Features High-quality 18650 Lithium-Ion rechargeable battery 2600mAh high-capacity cell Nominal voltage of 3.7V Energy rating of 9.62Wh Stable discharge performance High energy density Long charge and discharge cycle life Lightweight and compact cylindrical design Suitable for battery pack assembly Compatible with standard 18650 battery holders and chargers 📋 Technical Specifications Product Type: Lithium-Ion Rechargeable Battery Brand: Winway Battery Model: 18650 Nominal Voltage: 3.7V Nominal Capacity: 2600mAh Energy: 9.62Wh Battery Chemistry: Lithium-Ion (Li-ion) Cell Type: Rechargeable Form Factor: Cylindrical 18650 Diameter: Approx. 18mm Length: Approx. 65mm Weight: Approx. 45g Color: Green Rechargeable: Yes Made In: India Pack Quantity: 1 Piece 🔧 Applications Suitable for: Rechargeable Flashlights Emergency Lights Power Banks Bluetooth Speakers Portable Fans Solar Lighting Systems DIY Battery Packs Robotics Projects Arduino Projects ESP32 Projects Electronic Toys Portable Electronic Devices Medical Equipment (Compatible Models) Industrial Electronic Equipment 📦 Package Includes 1 × Winway 18650 Lithium-Ion Rechargeable Battery 3.7V 2600mAh ⚠️ Safety Instructions Use only a compatible Li-ion battery charger. Do not short-circuit, puncture, crush, or disassemble the battery. Do not expose the battery to fire, excessive heat, or water. Observe correct polarity during installation. Do not overcharge or over-discharge the battery. Store in a cool, dry place away from direct sunlight.
3.7V 700mAh 503035 Rechargeable Lithium Polymer (Li-Po) Battery for DIY Electronics, Robotics
[LiPo Cell] The 503035 3.7V 700mAh Rechargeable Lithium Polymer Battery is a compact and reliable power source designed for portable electronic devices and embedded applications. Manufactured using advanced Lithium Polymer (Li-Po) technology, it provides high energy density, lightweight construction, and excellent charge/discharge performance. In addition, the battery delivers a nominal voltage of 3.7V and a capacity of 700mAh, making it suitable for devices that require compact size with extended runtime. As a result, it is widely used in Bluetooth speakers, wireless headphones, GPS trackers, drones, robotics, IoT devices, portable medical equipment, and DIY electronics projects. Because of its slim profile, the battery can be easily integrated into compact electronic enclosures where space is limited. Furthermore, its low self-discharge rate and long cycle life ensure dependable performance over repeated charging cycles. The battery comes with pre-attached wires and a connector (connector type may vary by batch), allowing quick installation in compatible devices. Moreover, it supports safe charging using standard 3.7V Lithium Polymer battery chargers or BMS protection circuits. ⚠️ Note: Charge the battery only with a compatible Lithium Polymer charger or charging protection module. Do not short-circuit, puncture, overcharge, or expose the battery to high temperatures. 🔹 Key Features Rechargeable Lithium Polymer (Li-Po) battery High energy density Compact and lightweight design Stable 3.7V output 700mAh capacity Long charge/discharge cycle life Low self-discharge Pre-attached connection wires Suitable for portable electronic devices Reliable and safe performance 🔹 Technical Specifications Battery Type: Lithium Polymer (Li-Po) Model: 503035 Nominal Voltage: 3.7V Full Charge Voltage: 4.2V Capacity: 700mAh Battery Dimensions: Approx. 5 × 30 × 35 mm Rechargeable: Yes Charging Method: CC/CV (Constant Current / Constant Voltage) Standard Charge Voltage: 4.2V Protection Circuit: May vary depending on batch Operating Temperature: -10°C to +60°C Weight: Approximately 15–18g 🔹 Applications This battery is suitable for: Bluetooth speakers Bluetooth headsets Mini drones RC toys Robotics projects IoT devices GPS trackers Portable electronic devices DIY electronics projects Wearable electronics 🔹 Package Includes 1 × 503035 3.7V 700mAh Rechargeable Lithium Polymer Battery
702025 3.7V 400mAh rechargeable Battery for Drone, Toys, Gaming, Robotics bluetoorh Headset, Bluetooth Speaker
[LiPo Cell] The 702025 3.7V 400mAh Rechargeable Lithium Polymer Battery is a compact and high-performance power source designed for portable electronic devices requiring lightweight and reliable energy storage. Built using advanced Lithium Polymer (Li-Po) technology, it provides high energy density, low self-discharge, and consistent output voltage. In addition, the battery delivers a nominal voltage of 3.7V with a capacity of 400mAh, making it suitable for powering compact electronic devices and embedded systems. As a result, it is widely used in drones, Bluetooth speakers, Bluetooth headsets, wireless gaming accessories, robotics, GPS devices, wearable electronics, and DIY battery-powered projects. Because of its slim profile and lightweight construction, the battery can be easily integrated into space-constrained applications. Furthermore, it supports multiple charge and discharge cycles while maintaining stable performance and long service life. The battery includes a pre-attached connector with insulated leads for quick installation and safe operation. Moreover, its rechargeable design makes it an economical and environmentally friendly power solution. ⚠️ Note: Charge the battery only with a compatible 3.7V Lithium Polymer battery charger or BMS protection circuit. 🔹 Key Features Rechargeable Lithium Polymer (Li-Po) battery High energy density Compact and lightweight design Stable 3.7V output Long charge/discharge cycle life Low self-discharge rate Pre-attached connection wires Suitable for portable electronic devices Reliable and safe performance Ideal for DIY electronics projects 🔹 Technical Specifications Battery Type: Lithium Polymer (Li-Po) Model: 702025 Nominal Voltage: 3.7V Full Charge Voltage: 4.2V Capacity: 400mAh Battery Dimensions: Approx. 7 × 20 × 25 mm Rechargeable: Yes Protection Circuit: Yes Charging Method: CC/CV (Constant Current / Constant Voltage) Operating Temperature: -10°C to +60°C Weight: Approximately 6–7g 🔹 Applications This battery is suitable for: Mini drones RC toys Bluetooth headsets Bluetooth speakers Wireless gaming controllers Robotics projects GPS trackers Wearable electronics DIY electronic devices Portable rechargeable products
Super Mini 3.7V 4.2V Type-C USB Lithium Battery Charging Module with Protection
[Li-ion Rechargeable Battery Charger] The Super Mini Type-C Lithium Battery Charging Module is a small and efficient charging board for 3.7V lithium batteries. It accepts 5V input through a Type-C USB connector and charges the battery safely up to 4.2V. In addition, the module includes a built-in protection circuit. This circuit protects the battery from overcharging, deep discharge, and short circuits. As a result, the battery remains safe during charging and everyday use. Because of its very compact size, the module easily fits into small electronic devices. For example, it can be used in Bluetooth speakers, IoT devices, portable electronics, and DIY battery projects. Moreover, the board is easy to install and requires only simple wiring connections. Therefore, it is widely used in DIY electronics, robotics projects, and small battery-powered gadgets. 🔹 Key Features Supports 3.7V lithium-ion batteries Type-C USB input for convenient charging Standard 4.2V charging voltage Built-in protection circuit Compact and lightweight design Easy wiring and installation Automatic charge cutoff for safety 🔹 Technical Specifications Parameter Specification Battery Type 3.7V Lithium-ion Input Voltage 5V (Type-C USB) Charging Voltage 4.2V Charging Current Up to 1A Protection Overcharge / Over-discharge / Short circuit Connector Type-C USB Board Type Lithium battery charging module 🔹 Applications This charging module is suitable for many portable devices. For example: DIY power banks Bluetooth speakers IoT and smart devices Robotics projects Portable electronics Small lithium battery packs 🔹 Package Includes 1 × Super Mini 3.7V 4.2V Type-C USB Lithium Battery Charging Module with Protection
902030 3.7V 600mAh LiPo Rechargeable Battery for Bluetooth Speaker, RC Drone, Toys, DIY & Robotics
[LiPo Cell] The 902030 3.7V 600mAh Lithium Polymer Battery is a lightweight rechargeable battery designed for small electronic devices and hobby projects. With a 3.7V nominal voltage and 600mAh capacity, it provides stable and reliable power for portable electronics. Its slim pouch design allows easy installation in compact devices such as Bluetooth speakers, RC drones, toys, GPS trackers, IoT devices, and robotics projects. Lithium Polymer batteries offer high energy density, low self-discharge, and long cycle life, making them ideal for modern electronic devices and DIY applications. 🔹 Key Features Nominal Voltage 3.7V Capacity 600mAh Compact lightweight LiPo battery Rechargeable lithium polymer cell High energy density Stable discharge performance Suitable for portable electronics Ideal for DIY electronics projects 🔹 Technical Specifications Parameter Specification Model 902030 Battery Type Lithium Polymer (LiPo) Nominal Voltage 3.7V Fully Charged Voltage 4.2V Capacity 600mAh Cell Type Pouch cell Charging Method CC-CV Rechargeable Yes 🔹 Applications Bluetooth speakers RC drones RC toys Robotics projects DIY electronics GPS trackers IoT devices Portable gadgets 🔹 Package Includes 1 × 902030 3.7V 600mAh Lithium Polymer Rechargeable Battery ⚠ Color and label may vary depending on stock batch. ⚠ Safety Instructions Do not short circuit battery terminals Do not charge above 4.2V Do not discharge below 3.0V Use a compatible LiPo charger module (TP4056 recommended) Do not puncture or expose battery to heat or fire Do not charge unattended
704060 3.7V 2000mAh LiPo Battery | Rechargeable Lithium Polymer Battery with BMS
[LiPo Cell] The 704060 3.7V 2000mAh Lithium Polymer Battery is a compact, high-capacity rechargeable LiPo battery designed for portable electronic devices. With a nominal voltage of 3.7V and a capacity of 2000mAh, it provides reliable and long-lasting power for small electronics and DIY projects. This battery includes a built-in protection circuit (PCM) that helps prevent overcharging, over-discharging, and short circuits, ensuring safer operation and longer battery life. Its slim pouch design makes it ideal for space-constrained applications such as Bluetooth speakers, GPS trackers, mini cameras, and wearable devices. 🔹 Key Features High capacity 2000mAh LiPo battery Nominal voltage 3.7V Built-in PCM protection circuit Lightweight and compact pouch design Stable discharge performance Long service life Suitable for portable electronic devices 🔹 Technical Specifications Parameter Specification Model 704060 Battery Type Lithium Polymer (LiPo) Nominal Voltage 3.7V Fully Charged Voltage 4.2V Capacity 2000mAh Dimensions 60 × 40 × 7 mm Length 60 mm Width 40 mm Thickness 7 mm Protection Built-in PCM protection board Rechargeable Yes 🔹 Applications Bluetooth speakers MP3 / MP4 players Mini cameras GPS trackers Vehicle data recorders IoT devices Portable electronics DIY electronics projects 🔹 Package Includes 1 × 704060 3.7V 2000mAh Lithium Polymer Rechargeable Battery ⚠ Battery color and label may vary depending on batch. ⚠ Safety Instructions Do not short circuit the battery terminals. Do not charge above 4.2V. Do not discharge below 3.0V. Use a LiPo compatible charger. Do not puncture, crush, or expose battery to fire. Do not charge unattended. Store in a cool and dry place.
Out of stock146074 3.7V 10000mAh Rechargeable Lithium Polymer (Li-Po) Battery Cell for Power Bank & Electronic Devices
[LiPo Cell] The 146074 3.7V 10000mAh Lithium Polymer Rechargeable Battery Cell is a high-capacity flat Li-Po battery designed for portable electronic devices and power bank applications. With a large 10000mAh capacity, it provides long-lasting power while maintaining a compact and lightweight design. This lithium polymer cell is widely used in DIY power banks, Bluetooth speakers, tablets, GPS devices, IoT systems, portable electronics, and backup power systems. The battery includes protection circuitry compatibility and provides stable voltage output for reliable performance in demanding applications. 🔹 Key Features High capacity 10000mAh lithium polymer battery Nominal voltage 3.7V Lightweight and compact flat design Rechargeable Li-Po chemistry High energy density Stable discharge performance Suitable for portable electronics and DIY power banks 🔹 Technical Specifications Battery Type: Lithium Polymer (Li-Po) Model: 146074 Nominal Voltage: 3.7V Fully Charged Voltage: 4.2V Rated Capacity: 10000mAh Actual Capacity: 90-92% of Rated Capacity Cell Type: Flat pouch cell Charging Method: CC-CV (Constant Current / Constant Voltage) Charge Voltage: 4.2V Discharge Cut-off Voltage: 3.0V Rechargeable: Yes 🔹 Applications Power banks DIY battery packs Bluetooth speakers Portable electronics IoT devices GPS devices Tablets and handheld devices Backup power systems ⚠ Safety Instructions Do not short circuit battery terminals. Do not overcharge above 4.2V. Do not discharge below 3.0V. Use only compatible Li-Po charger or protection board. Do not puncture or expose battery to fire or heat. Do not charge unattended. Store in a cool and dry place. 🔹 Package Includes 1 × 146074 3.7V 10000mAh Lithium Polymer Battery Cell ⚠ Battery color and label may vary depending on stock batch.
113440P 3.7V 1500mAh Lithium Polymer Rechargeable Li-Po Pouch Cell
[LiPo Cell] The 113440P 3.7V 1500mAh Lithium Polymer Battery is a compact and lightweight rechargeable Li-Po pouch cell designed for reliable power delivery in modern electronic applications. With a nominal voltage of 3.7V and a high capacity of 1500mAh, this battery is well-suited for DIY electronics, IoT devices, Bluetooth speakers, GPS trackers, medical devices, wearables, and portable gadgets. Manufactured using advanced lithium polymer chemistry, the battery offers stable discharge performance, low internal resistance, and long cycle life. Its flat pouch form factor allows easy integration into slim and space-constrained designs where cylindrical cells are not suitable. For safe operation, the battery should be used with a proper Li-Po charging circuit (CC/CV) and protection module (PCM/BMS) to prevent over-charge, over-discharge, over-current, and short-circuit conditions. ⭐ KEY FEATURES ✔ Nominal Voltage: 3.7V✔ Capacity: 1500mAh✔ Lithium Polymer (Li-Po) Chemistry✔ Rechargeable & Long Cycle Life✔ Slim pouch / flat cell design✔ Stable discharge & low self-discharge✔ Lightweight and compact✔ Suitable for DIY & OEM applications 🔧 TECHNICAL SPECIFICATIONS Model: 113440P Battery Type: Lithium Polymer (Li-Po) Nominal Voltage: 3.7V Rated Capacity: 1500mAh Max Charging Voltage: 4.2V Discharge Cut-off Voltage: ~3.0V Rechargeable: Yes Form Factor: Pouch / Flat Cell 🎯 APPLICATIONS DIY electronics projects IoT & embedded systems Bluetooth speakers & audio devices Wearable & medical devices GPS trackers Power banks & portable gadgets 📦 PACKAGE INCLUDES 1 × 113440P 3.7V 1500mAh Lithium Polymer Battery Cell(Quantity as per selected pack)
802540P 3.7V 1000mAh Rechargeable Lithium Polymer Battery
[LiPo Cell] The 802540P 3.7V 1000mAh Lithium Polymer Battery Cell is a compact and lightweight rechargeable Li-Po battery designed to deliver reliable and stable power for a wide range of electronic devices. With a nominal voltage of 3.7V and a capacity of 1000mAh, this battery is suitable for DIY electronics, IoT projects, wearable devices, Bluetooth speakers, GPS trackers, power banks, and portable gadgets. Built using high-quality lithium polymer chemistry, the cell provides low internal resistance, stable discharge performance, and long cycle life. Its flat pouch-style design allows easy integration into slim and compact devices where cylindrical batteries cannot be used. The battery can be safely charged using a proper Li-Po charging module (such as TP4056) and should be used with appropriate protection circuitry to prevent overcharge, over-discharge, and short-circuit conditions. ⭐ KEY FEATURES ✔ Nominal Voltage: 3.7V✔ Capacity: 1000mAh✔ Lithium Polymer (Li-Po) Chemistry✔ Rechargeable & Long Cycle Life✔ Slim, lightweight pouch cell design✔ Stable discharge & low self-discharge✔ Ideal for compact & portable devices 🔧 TECHNICAL SPECIFICATIONS Model: 802540P Battery Type: Lithium Polymer (Li-Po) Nominal Voltage: 3.7V Rated Capacity: 1000mAh Charging Voltage: 4.2V (Max) Discharge Cut-off Voltage: ~3.0V Rechargeable: Yes Form Factor: Pouch / Flat Cell 🎯 APPLICATIONS DIY electronics projects IoT & embedded systems Bluetooth speakers & headsets Wearable devices GPS trackers Power banks Portable gadgets 📦 PACKAGE INCLUDES 1 × 802540P 3.7V 1000mAh Lithium Polymer Battery Cell
Type-C 3S 4A 18650 Lithium Battery Charger Module | USB-C Step-Up Boost Charging Board for Li-ion
[Li-ion Rechargeable Battery Charger, Step UP Buck Converter] The 3S Type-C Charging Module Battery Charger Board is a compact and highly efficient solution for charging 18650 lithium-ion and Li-Po polymer battery packs. Designed specifically for 3S battery configurations (12.6V charging voltage), this module integrates a USB Type-C input and a high-frequency step-up (boost) circuit, making it ideal for modern portable power applications. With multiple current variants available (1A / 2A / 4A), the module offers flexibility for different power requirements. Its high switching frequency up to 1MHz ensures fast response, stable performance, and compact PCB size. The intelligent quasi-CV (constant voltage) mode compensates for voltage loss caused by internal battery resistance and PCB trace resistance, ensuring accurate and efficient charging. This charging board also features automatic recharge capability, restarting charging when battery voltage drops, and excellent adaptability to power sources with limited driving capability. Built-in protection functions safeguard the battery and connected devices from over-voltage, under-voltage, and short-circuit conditions, enhancing safety and battery lifespan. Thanks to its wide compatibility and reliable performance, this module is suitable for a broad range of applications including DIY power banks, portable electronics, solar charging systems, audio equipment, POS machines, electric fans, Bluetooth devices, and other Type-C powered equipment. ⭐ Key Features ✔ USB Type-C Input for convenient and modern charging ✔ Supports 3S Lithium Battery Packs (12.6V charging voltage) ✔ Multiple Charging Current Options: 0.37A (1A version) 0.74A (2A version) 1.48A (4A version) ✔ High Switching Frequency up to 1MHz for stable and efficient operation ✔ Quasi-CV Charging Mode compensates voltage loss ✔ Automatic Recharge Function ✔ Built-in Protection: Over-voltage, low-voltage, short-circuit ✔ Compact design, easy integration into DIY projects 🔧 Technical Specifications Battery Configuration: 3S lithium battery Supported Batteries: 18650 Li-ion / Li-Po polymer Input Voltage: DC 3–6V (Recommended: 3.7V / 5V) Input Current: Up to 4A (4A version) Charging Voltage: 12.6V Charging Current: 0.37A (1A version) 0.74A (2A version) 1.48A (4A version) Switching Frequency: Up to 1MHz Protection Functions: Over-voltage, under-voltage, short-circuit 🎯 Applications DIY power banks 18650 lithium battery packs Mobile phones & portable devices Bluetooth speakers & audio equipment Solar charging systems POS machines Cameras, MP3/MP4 players Game consoles & notebooks Type-C powered electronics 📦 Package Includes 1 × 3S Type-C Charging Module Battery Charging Board 4A Version Please note: Image Only for representation purposes. Actual products may vary as per available stock.
Portable USB Bluetooth Audio Music Receiver Dongle Adapter – Wireless Audio Receiver
[Audio Receiver] The Portable USB Bluetooth Audio Music Receiver Dongle Adapter instantly converts any car stereo, home speaker, PC speakers, or audio system into a wireless Bluetooth-enabled music receiver. Simply plug the dongle into a USB power source, connect its audio output to AUX, and enjoy seamless wireless music streaming from your smartphone, tablet, or laptop. This compact Bluetooth receiver delivers crisp, high-quality audio with stable transmission—making it perfect for cars without built-in Bluetooth, wired speakers, home audio systems, and portable sound setups. It supports all Bluetooth-enabled devices and offers quick pairing, low power consumption, and wide compatibility. Whether you're upgrading your car audio or converting old speakers into wireless ones, this USB Bluetooth receiver provides an easy and affordable solution. ✅ Features Convert any speaker or car stereo into a Bluetooth audio receiver Provides high-quality wireless music streaming from mobile, tablet, or laptop USB-powered – plug into car charger, power bank, or USB port Stable Bluetooth connection with fast pairing Compatible with car stereos, home speakers, multimedia systems, and amplifiers Ultra-compact, lightweight, and easy to carry Supports all major Bluetooth audio devices No drivers required – plug & play operation **** 3.5mm jack or cable not included***** 📘 Specifications Device Type: USB Bluetooth Audio Receiver Bluetooth Version: Standard high-quality audio support Input Power: USB 5V Output: 3.5mm AUX audio Transmission Distance: Approx. 8–10 meters Compatibility: Android, iOS, laptops, tablets, car stereos, speakers, amplifiers Usage: Car audio upgrade, home audio wireless streaming, mobile speaker enhancement Design: Compact & portable