20pcs PAM8403 DC 5V Mini Class D 2x3W USB Power Amplifier Board DIY Bluetooth Speaker Class D Digital Amplifier Board

Overview The board adopts the PAM8403 typical circuit design the use of MICRO USB power supply reserved welding wire interface is very convenient to use universal mobile phone charger for the power supply resistance container parts adopt standardized SMT process simple and stable design special interface for bluetooth audio receiver module can easily DIY little bluetooth speakers the board can pick up 8 ohm 4 ohm small speakers suitable for all frequency horn or full frequency small speakers Specifications Supply Voltage DC 3 4V 5VOutput Power 3Wx2 Package Included 20 x PAM8403 DC 5V Mini Class D 2x3W USB Power Amplifier Board