Standalone perfomance with built in sounds ? Battery powered mini keyboard instrument ? Over 100 internal drum and instrument sounds ? New, larger built-in speaker with increased volume and low-end response ? Premium 25-key Gen-2 dynamic keybed ? (8) real MPC drum pads for durable performance ? (4) assignable knobs to control MIDI parameters ? OLED display for visual feedback ? 1/8-inch headphone output jack ? USB port for Class Compliant MIDI controller functionality