Note: The PCB Board Color will be different for different batches
DC12-24V TPA3116D2 50W + 50W Bluetooth 4.0 amplifier board With U disk TF card player 

Chip: TPA3116D2
Bluetooth transmission distance: maximum 20M
Voltage: DC12-24V
Power: 50W + 50W
Storage mode: TF card, U disk
Size: 73 * 68 * 16mm
Efficiency: more than 90% .
Weight ：42g
Key Function:
mode: Bluetooth, U disk, TF switch mode
play: play / pause mode
Prev / V-: short press to switch the previous song, long press to decrease the volume
Prev / V +: Short press to switch the next song, long press to increase the volume