Numark Mixstream Pro Go is the world's first 100% wireless DJ system with a built in battery, speakers and music streaming capability. Added to this the Engine OS operating system includes on-board track analysis, touch-screen FX, lighting control and all the high-end performance features that DJs have come to expect, not to mention the new features that get added with regular firmware updates. A truly portable and future-proof DJ controller for any DJ wanting an all-in-one system.