USB sound card is pure and perfect 7.1 channel This sound card supports personal recording, 1 language chat, MSN, bitchat, 9158 + person video KTV, Sina UC, YY and other online chat and kge platforms Strong features: The volume and quality of sound quality of computer integrated sound card are much higher than that of computer. Second, it can replace the sound card with a professional 7.1 channel because the [board / integrated / self-contained] sound card is a good substitute and the sound quality is better. Third, it is not necessary to install the drive and use the direct high sound effect without driving. Four songs YY voice games online conference listening to songs dialogue,,, various large-scale game entertainment external sound card portable version. Standard USB 2.0 [all functions are suitable] Function 1 game is especially suitable for games with earmuff effect [gray is always good]! Function 2 the computer has no sound, as long as the computer can use usb2.07.1 surround sound effect when the second medium is normal Function 3 supports network songs. This product is specialized in earphone and subwoofer. If you use IC on USB speaker, it will be hot. If you use it on USB small speaker, your USB speaker must be connected with external power. Purpose – built in sound card, onboard sound card, etc..