Description: Six functions, professional reverb, pure KTV sound, audio source amplification, connected instruments, shielding current interference, independent control function. Supports karaoke effects such as reverb, mix, echo, delay, etc. Powered by an external power supply. Support pure recording, mixing, and can be used as a stand-alone PC or home recording connection device. Support a variety of sound cards, such as PC integrated sound card, external independent USB sound card. Specification: Support two sets of microphone input (6.3mm TRS), and achieve double chorus function Support a set of outputs, headphones or speakers Support a variety of external devices as accompaniment sources (computer, MP3, CD, piano, mobile, tablet, TV, etc.) Support high quality microphone amplifier Support multimedia microphone, dynamic microphone, condenser microphone with power supply Support TS or TRS input Two sets of control knobs, one for controlling the microphone volume and one for controlling the reverb sound Audio input and output interface: RCA stereo interface Package Includes: 1 X A933 Mini Karaoke Mixer 1 X 3.5mm revolution 3.5mm male (line length 150CM) 2 X 3.5mm female to RCA (line length 50CM)