Digital Audio Power Amplifier Board Bluetooth Receiver USB AUX Input 30W Stereo
Output power: 2 x 30W. Input priority is USB, AUX, Bluetooth. Do not connect USB input or 3.5mm input if you need to use Bluetooth input. 1 x Amplifier board. Input: U drive (FAT32 format, max 32GB), AUX, Bluetooth.