Miniature digital power amplifier board 2 * 3 w class D power amplifier board high 2.5 ~ 5 v can be USB power supply Features: Miniature digital power amplifier board 2x3w class D power amplifier board, Can work on USB power supply. Good noise suppression Input audio should be via sheilded wire Dual channel stereo Read more about PAM8403 3W Digital power Audio Amplifier Board USB DC 2.5V ~ 5V. Class D[…]