Supply voltage: DC 1.8-12V
Output Power: 0.1W-5W ;4-32 Ohms
Dimensions: 52 x 31 x 23mm (L*W*H)
Input Interface: 3.5mm Audio input
Adjust form: volume adjustment
Using TDA2822M acts as amplifier chip, this chip is STMicroelectronics (ST) developed dual-channel monolithic power amplifier IC, usually in the pocket cassette player (WALKMAN), tape recorders and multimedia speaker in for the audio amplifier.
Simple circuit, good sound quality and wide voltage range