2x15W/10W AUX Audio Bluetooth 5.0 Digital Power Amplifier Audio Board Module B
Output maximum power 2x15W at 16V4A. 1pcs 5.0 Bluetooth power amplifier board. When 12V4A, the output maximum power is 2x10W. M+ and M- are the positive and negative of the microphone. We will reply you ASAP.