ITEM NAME:Hifi Stereo 2.0 Channel Amplifier Module Adapter for Portable Radio Cassette and img *{margin:0;padding:0;.It adopts the original TDA2822M power amplifier chip, which has the characteristics of small quiescent current and small cross distortion. 1Piece Amplifier Board. - It is suitable for power amplification in portable, micro-small recorders and computer audio.