●The M4 / M6 mixer audio is a multi-purpose 4/6-channel mixer with a sound card that can be meet users of home music recording, webcast, Singing, small party, and other needs. ●The mixer is equipped with input gain and high bass adjustment, built-in 48V phantom power supply for condenser microphone direct power supply, high-definition headset output port, MP3, WMA, WAV, FLAC broadcast, device with a sound card can be directly connected to the PC. ●Mixer compact, light weight, can be directly connected to the PC's USB port power supply,No additional power, can be connected to the computer through the USB power supply to run. ●With the trouble with an external adapter, you can also use the mobile power or USB AC / DC.The adapter is powered by the adapter. ●All you need is a cellphone data cable to connect to your computer and tune it up when it's powered.