ITEM NAME:Mini DC 5V PAM8403 Audio Amplifier Module Board with Potentiometer Switch #gib Store Home Promotion Hot Item Add to Fav.1 X Amplifier Module Board. Power: DC 5V. HD digital audio signal output. With 470uf 1.6mm glass fiber power wave filter board. Mini size design. UP to 15 years long service life, with switch. 3W+3W audio output.