Audio Amplifier Board- PAM8403 5V 2 Channel 3W DC 5V Volume Control with Potentiometer(Green)

pam8403 audio amplifier board can be powered by USB power supply. Operating voltage: 2.5V-5.5V Maximum output power: 3 w * 2 (5 v 4Ω) The size of the PCB is about: length 30mm width 22mm total height after installation is about 16mm. Flexible use of assembly. Built with a switch pot, it can adjust the volume & control the power switch freely! note: Please make sure the power supply is not more than 5.5V and please do not reverse polarity to "+" and "-", or else it will burn the board Potentiometer with the switch can cut off the power supply directly counterclockwise. Package Contents: 5-PIC Pam8403 5v power amplifier board 2 channel 3w volume control