Click Image for Gallery
It is a small digital uses PAM8403 chip amplifier circuit using the most reasonable peripheral configuration, output 3W +3 W high-fidelity sound, is a very good product for amp enthusiasts.
PAM8403 Mini Power Amplifier Board.
Operating voltage: DC 2.5-5 .5 V
Max output: 3Wx2
Power supply filtering: 470uf
Dimension:29.5 x 20.2 x 15mm (excluding protruding potentiometer handle)
Potentiometer with switch, can Adjust the volume and Control the power switch
Suitable for battery or portable electronics products,suitable for long time steady usage.
Small PAM8403 5V USB Power Stereo Audio Digital Amplifier Home Speaker 3W+3W AMP