Proslogan SX-4SD Professional 4-Channel Mixing Console with Monitor and Effect Processor Designed in Germany. Clean Sound For Live Band, KTV, Home Audio, DJ Music, Studio, Concert, Party, Club, Conference, Speech, etc. 4-Channel Mixer with USB/SD Card Inputs - USB Interface for MP3 compatibility 4-Channel Mixing Console with 2 Mono Mic/insert input and 2 Stereo Channels - Separate Stereo Tape Channel Low-Noise Discrete Mic Pre-amplifiers on all Microphone  Input 110-120V with Flat Plug transformer, 16V AC input.  Light weight and slim design, more Convenient. Mini in size, light weighted and strong structure mixers for easy-carry live shows Professional sound quality with multi-functional effect for your ideal choice Suitable for all kinds of live shows, especially live DJ, Karaoke, stage. The latest state-of-art design for your professional-satisfied usage.