Product description 1.PAM8403 onboard audio amplifier chip, 3W * 2 fetterless Class D stereo audio amplifier 2.Then two-way onboard 5.08 (mm) pitch 2P terminal, terminal output left and right channels, respectively 3.The chip has led major pin for easy control of external devices 4. Working voltage: 5V 5.Board size: 30 (mm) x30 (mm) Note: This module is a small painting of an audio input GND pin, audio cable and module GND GND external common ground can be
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