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

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