2X(TPA3255 Bluetooth Digital Amplifier Board -AS21 2.1 Channel Portable3639
Product Model:-AS21. 220W+220W+350W, 2.1 Channel Bluetooth Power Amplifier Module, Aux/Bluetooth/U Disk/Sound Card. Number Of Channels:2.1 Channels (Left Channel + Right Channel + Subwoofer). Easily Connect Your Audio System.