Wireless Bluetooth power amplifier board module with call function MP3 decoding
Alimentare 3.3... 5V
MIicro USB power supply interface: Micro USB interface is the Android mobile phone power interface. It is very convenient to use. It can directly use the mobile phone charging head to supply power to the power amplifier.

Support U disk playback: U disk into the USB port to play MP3, WAV music. The U disk is powered off and the memory is played. After the power is turned on, the last song is played.

Technical Parameters:
Power: typically 6W (Class D)
Voltage: DC DC3.3V-5V, 5V power supply must be used when playing MP3 on U disk
Bluetooth: connection distance is about 15 meters (depending on different mobile phones)
Speaker recommendation: 4 ohms, 3 watts - 10 watts; 6 ohms - 8 ohms, 3 watts - 10 watts 

Board size: length 62MM width 46MM height 20MM