PAM8403 Bluetooth 5.0 Lithium Battery Dual channel 3W+3W Audio Amplifier Board
3,71 €
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.
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