ITEM NAME:Professional PAM8403 Mini 5V Digital Amplifier Board with Switch Potentiometer Description: PAM8403 is a small digital power amplifier chip, and high-definition sound quality shows the advantages of digital chips. The circuit uses the most reasonable peripheral configuration, and the power supply filter is upgraded to a 470uf.6mm fiberglass board, which truly makes best details of the power amplifier board. The output of 3W+3W high-fidelity sound quality is a good product for amplifier enthusiasts. Potentiometer with reversible clockwise switch, can directly cut off the power supply. The potentiometer is made of original anti body and the service time can reach 15 years. Specification: Material: Metal Size: 35 x 30 x 12 mm / 1.38 x 1.18 x 0.47 inch Package Includes: 1 Piece PAM8403 Digital Amplifier Board Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. SKU: ALU0017159968003078.1 Piece PAM8403 Digital Amplifier Board. The output of 3W+3W high-fidelity sound quality is a good product for amplifier enthusiasts. Color may be slightly different since different monitor. People always bought together with.