This product is a stereo Bluetooth amplifier module. The Bluetooth version is 4.2.The Bluetooth version is 4.2. It has dual 5W circuit power amplifier. It has USB sound card support. It has F power amplifier class 5W + 5W.
1.The version is 4.2. It can be compatible with all mobile phones and Bluetooth adapters on the market.
2.The distance is 15 meters in open space.
3.It supports automatically connecting devices that have been paired and playing music automatically.
4. F class power amplifier 5W+5W, high power output, over 8002 sound quality.
5. It supports USB sound card, no drive, plug and play.
6. Good sound quality, suitable for upgrading and refitting the idle sound box and DIY production.