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PAM8403 MiniPower Amplifier Board. Operating voltage: DC 2.5-5.5V Max output: 3Wx2 (5V 4Ω) Efficiency: 90% Dimension:30 x 22 x 16mm (do not including potentiometer handle)
PAM8403 MiniPower Amplifier Board. Operating voltage: DC 2.5-5.5V Max output: 3Wx2 (5V 4Ω) Efficiency: 90% Dimension:30 x 22 x 16mm (do not including potentiometer handle)