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Chip type: PAM8403. 1PCS PAM8403 Digital Amplifier Board (no battery). Output power: 2 3W. Answer: If the phone can connect successfully and play music. Answer: The function of the power amplifier board is to amplify the signal.
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.