- Length: 30mm
- Durable and practical
- Width: 21mm
- Overall height after installed is about 16mm.
- Operating voltage: 2.5V-5.5V
- Maximum output power: 3W*2(5V 4Ω)
This PAM8403 Audio Amplifier board could be powered by USB Power supply. Item specifics: Operating voltage: 2.5V-5.5V Maximum output power: 3W*2(5V 4Ω) PCB size is about: Length: 30mm Width: 21mm Overall height after installed is about 16mm. Note: please make sure the power supply is not more than 5.5V and please don't do reverse polarity for "+" and "-", or else, it will burn the board. Package Included: 1pcs x PAM8403 3Wx2 5V Dual Channel Power Audio Amplifier Board