This mini 2 channels 3w amplifier with PAM8403 is perfect for MP3/MP4/notebook. And you could also power the board with 5V USB power supply.
- Operating voltage:3.6V - 5.5V
- Maximum output power: 3Wx 2 (at 4V)
- Channel Efficiency: >90%
- PCB Size: Approx. 24x 11mm / 0.95 x 0.43 inch
- Note: Please make sure the power supply is not more than 5.5V and please don't do reverse polarity for "+" and "-"; otherwise, it will burn the board.
- 1 x 3W amplifier Board