Per Bluetooth 5.1 2 Canali Amplificatore di Potenza Digitale Subwoofer Audio Amp Board
5: Support Wuzhi Audio APP. Support Wuzhi Audio APP. 1 Digital power amplifier board module. Bluetooth version: 5.1. Audio output: left channel 15W + right channel 15W. Audio input: BT+AUX+USB+USB sound card.