ขาย Godd บอร์ดขยายเสียง Pam8403 5V 2 Channel พลังงาน Usb 3W ควบคุมระดับเสียง ราคาที่ดีที่สุด

#Mini #PAM8403 #Audio #Amplifier #Board #5V #2 #Channel #USB #Power #3W #Volume #Control Mini PAM8403 Audio Amplifier Board 5V 2 Channel USB Power 3W Volume Control Description: Model:PA8403 Power:Low Power Excellent noise suppression, in the absence of circumstances connected to input audio ear close to the speaker can not hear any noise, two-channel stereo, 5V power supply can output 3W 3W power, can directly drive 4Ω, 8Ω small speakers, the output power large, full of energy, good sound quality. The unique non-LC filter Class-D digital power board can be directly used computer USB power supply. Double panel wiring, wiring properly resolve the ground potential caused by balance and inter-channel crosstalk, ultra-miniature design, can easily be placed in a variety of digital products within a small space, high amplification efficiency. All using the whole plate welding machine, welding quality comparable non-manual soldering iron! 100% brand new and high quality Operating voltage: 2.5V-5.5V Maximum output: 3Wx2 (5V 4 ohms) Efficiency can reach above 90%, you can use the computer USB port 5V power supply The board compact with a switch potentiometer, you can adjust the volume and control of arbitrary power switch. Working voltage should not exceed 5.5V, the power of positive and negative can not be wrong. Otherwise, there is the possibility of damage chip Board size: 2.9cmx2cm/1.14x0.78inch(Dimensions without potentiometer handle protruding parts) Quantity:1set Note: Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(No Retail Package): 1Pc x PAM8403 Digital Amplifier Board With Switch Potentiometer 1pc x Screw