ITEM NAME:Mini 5x PAM8403 2 Channel Stereo 3W Class D Audio Power Amplifier Module Bo I1C3 Description&Preview.Products: PAM8403 mini D class digital amplifier board. Double-panel wiring, properly solve the wiring caused by the ground potential balance and channel crosstalk between the ultra-miniature design, can be easily placed in a variety of digital products within the small space, high efficiency amplification.