ماژول آمپلی فایر استریو 3 وات PAM8403 همراه با ولوم متغیر

PAM8403 Mini 5V Digital Amplifier Board With Switch Potentiometer
Parameters
PAM8403 Mini Power Amplifier Board.
Dimension:30 x 22 x 16mm (do not including potentiometer handle)
Operating voltage: DC 3-5.5V
Max output: 3Wx2 (5V 4Ω)
Efficiency: 90%
Note
1.You can use USB port on computers to offer 5V power supply for the amplifier board
2.Potentiometer with switch, can adjust the volume and control the power switch
3.Suitable for battery or portable electronics products,suitable for long time steady usage
4.Please make sure operating voltage less than 5.5V, or the module will be damaged
5.Without reversed connection protection, meaning the module will burn if wires are connected reversely
6.Please note that do NOT connect to power if you do have the speaker connected, or will wreck the module.