2 pcs PAM8403 Amplifier Board Module 2*3W Class 2.5V-5V USB Power Supply

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2 pcs PAM8403 Amplifier Board Module 2*3W Class 2.5V-5V USB Power Supply

2pcs Mini Digital Power Amplifier Board 3W+3W DC AMP Module 5V USB Power Supply

Class D 2X3W PAM8403 Amplifier Board USB Power Audio 4.0 Receiver SOP Module

5PCS 2.5-5V 2X3W Mini Audio Class D amplifier board PAM8403 board