2X(Amplifier Board 2 x 10W Bluetooth Mp3 Decoding Board Trolley Audio1480
Dual Decoding Supports MP3, WMA, WAV, FLAC, APE Lossless Format Music; Supports Mmc/Sd/ And Other Cards, And Supports Usb Interface (U Disk). Model: JQ-D137BT (power: 2 x 10W, with microphone function).