Circuits Digital Stereo Channel D 2*3W USB Power Audio Module Mini PAM8403 Amplifier Board

Label:Yes or using a mobile phone charger USB port 5V power supply Portable DVD players, game consoles Laptop Size:As the picture shown Phone / speakerphone A class, B class amplifier such efficiency is only about 30% High efficiency:90% Power on / off without pop noise Can use the computer USB port 5V power supply Speaker With:4-8ohms recommended:4 ohms Operating voltage: 2.5V-5.5V Portable Speakers Battery power can also be used But do not add heat sink and take less space Speaker Power :2-8W Can provide 3W (left channel) +3 W (right channel) output power in the 4Ω load and 5V power supply conditions Noise canceling circuit was built in the amplifier board Module has a short-circuit current protection and over-temperature protection D class amplifier efficiency is extremely high, not because of temperature affect the sound quality LCD TVs,monitors Color:As the picture shown D class amplifier is highly respected today Package Contents:10 x Amplifier Boards