Built-in high-speed ARM chip, with low-noise, voice-changing, pitch-changing, reverb, delay, electronic sound effects and other processing technologies. The mixer is equipped with input gain and high bass adjustment, built-in 48V p-han power for condenser phone direct power, clear headset output port, MP3 broadcast, device with a sound card can be directly connected to the PC. Mixer compact, lightweight, can be directly connected to the PC's USB port power. No additional power, can be connected to the computers through the USB to run, eliminating the need for with the trouble with an external adapter, you can also use the mobilephonr power or USB AC/DC. High resolution, dual track recording and playback output. Various input / output interface, various recording modes. The audio mixer is a multi-purpose 6-channel mixer with a sound card that can be meet users of home music recording, webcast, singing, small party, and other needs. Specifications: Main color: black Main material: metal ABS Frequency response: input to stereo out 0.5 dB / -1.0 dB, 20Hz-20kHz Reference output level rate: 1kHz Gain knob: Medium THD N: 0.02 Percent 10dbu, 20Hz to 20kHz EQ HIGH Gain: 15dB -15dB, Frequency: 10kHz slope EQ LOW Gain: 15dB -15dB, Frequency: 100Hz slope Input and output level: Mic - 60dB, LINE - 40dB Package size: 273 x 260 x 82mm / 10.7 x 10.2 x 3.2in Package weight: 1150g / 2.5lb Packing Lsit: 1 Audio Mixer 1 USB Cable