BT5.0 2.1 Channel Digital Amplifier Board+AUX Cable+Remote Control7695\n\n2.1 channel power amplifier board description: 1. The remote control, U disk, and AUX terminals have been connected to the Bluetooth power amplifier board. The corresponding plugs must be inserted and functions can be matched to work. You cannot solder lines yourself, and there is a risk of burning the Bluetooth chip.\n2. Power and power supply: regulated switching power supply: up to 20V; 12V power supply maximum power 2*15+30W 4\u03A9; 20V power supply maximum power 2*25+50W 8\u03A9\n\nProduct name: 2.1 channel subwoofer power amplifier board\nSupply voltage: 12-20V DC\nSupply current: 3-5A\nBluetooth version: 5.0\nChannel: 2.1\nJob type: Class D\nProduct size: 96 x 48mm\ncolor:Blue\nMaterial:PCB+Metal\n\nPackage Contents:\n1 x Bluetooth power amplifier board\n1 x AUX audio cable\n1 x remote control