The DJ mixer will usually have facilities to mix the output from turntables, CD players or MP3 players in any combination. A basic mixer will be two channel with a cross fader to enable you to mix from one source to another. Headphones will allow you to monitor what you are doing. Going up the range, mixers will have more input channels, tone controls, maybe even some funky digital effects. Our range of Numark mixers will have a product suitable for all levels of user.