SPECIFICATION Operating voltage: 2.5V-5.5V Maximum output power: 3W*2(5V 4?) PCB size is about: length 30mm width 22mm overall height after installed is about 16mm Built with switch Potentiometer, can adjust the volume & control power switch freely! Flexible assembly usage. Usage: Suitable for battery or portable electronics products, suitable for long time steady usage. Note:Please make sure the power supply is not more than 5.5V and please don't do reverse polarity for "+" and "-", or else, it will burn the board. WHAT'S IN THE PACKAGE 1X PAM8403 mini 5V power amplifier board (Support USB Power supply)
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