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

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