Adafruit-Stereo-3-7W-Class-D-Audio-Amplifier-Adafruit-987-P-The-Adafruit-Stereo-3-7W-Class-D-Audio-Amplifier-features-AGC-Automatic-Gain-Control-and-up-to-89-efficiency-making-it-ideal-for-battery-powered-projects-Optional-onboard-jumper-pi…View more