6966 DIY Bluetooth 5.0 Audio Receiver Board Module MP3 Lossless Player Wireless Stereo Music Amplifier Module Features 1. Using Bluetooth 5.0 main control chip, good transmission effect and high stability 2. With button control, there are control up and down music, volume addition and subtraction, playback, pause, switch machine, etc., and reserved high and low level control interfaces, regardless of daily use, and DIY modification, it is very playable 3. Micro 5 Pin interface power supply, ordinary mobile phone charger charging cable can be used. 4. Product use: Bluetooth audio signals from mobile phones, laptops, and tablets can be transmitted to power amplifiers, active speakers and other devices through this Bluetooth audio receiver. The audio interface can also be connected to ordinary headphones with a 3.5mm interface. The headset becomes a Bluetooth headset (without a microphone, voice chat is not supported) Specification 1. Power interface: Micro 5 Pin (reserved 2.5mm welding port, this model does not support battery power supply) 2. Input voltage: 3.7V-5V 3. Signal-to-noise ratio: 90DB 4. THD+N: -70DB 5. Crosstalk: -86db 6. DNR: 91dB 7. Transmission protocol: A2DPAVCTPAVDTPHFP 8. Transmission distance: about 10 meters (the shorter the distance, the better the stability) 9. Output interface: 3.5mm stereo (reserved soldering points, you can DIY by yourself) 10 Dimensions: 30mm x 30mm