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1pc PAM8403 Digital Amplifier Board. Output power: 3W 4. You can also input a group of audio and output 4 channels simultaneously. An audio switch is soldered on the board, which can automatically switch between two-channel or four-channel output.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.