NEU 2 Kanal 2*3W PAM8403 Digital Verstärker Platine Bluetooth 5.0 Audio Modul
3,72 €
Chip type: PAM8403. 1PCS PAM8403 Digital Amplifier Board (no battery). Answer: The function of the power amplifier board is to amplify the signal. So a little noise is normal. Answer: If the phone can connect successfully and play music.
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