PAM8403 Mini 5V Power Amplifier Board Support USB Power Supply 3W+3W
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Feature:
Operating voltage: 2.5V-5.5V
Maximum output power: 3W*2(5V 4Ω)
size:apporx.30*22*16mm
Built with switch Potentiometer,can adjust the volume & control power switch freely!
Flexible assembly usage.