Product name: PAM8403 digital amplifier board
Power supply range: 2.5-5.5V
Minimum output: 3W*2
Size: 29.5*20.2*15mm (not including protruding potentiometer pole)

PAM8403 is small digital power amplifier chip, high-definition sound quality highlights the advantages of digital chip;
Power supply filtering is upgraded to 470 uF, 1.6 mm glass fiber sheet;