This is a 2-channel 3 W miniature class D audio amplifier based on PAM8403 chip. This is a highly efficient filter-free amplifier board which is great for adding audio capability to your projects.
The PAM8403 integrated circuit is a 3 W class-D audio amplifier that features low harmonic distortion and high efficiency. This module can be powered with a voltage from 2.5 V to 5.5 V, making it ideal for adding audio capabilities to your new project.
This audio amplifier is the perfect choice for MP3 and MP4 player projects. This board is also suitable for LCD televisions, portable speakers, portable DVD players, phones, speaker phones and more.