10PCs Integrated Circuits Stereo Channel D 2*3W USB Power Amplifier Board Audio Module Mini PAM8403

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