Numark Orbit | Wireless Handheld MIDI Controller with Motion Control & Built-In Accelerometer Wireless handheld MIDI controller Use with included Orbit DJ software, or customize it for use with any software that accepts MIDI messages 2.4 GHz ultra-low-latency wireless performance control up to 100 feet 16 backlit pads, 4 selectable banks, 4 virtual knobs per bank Internal 2-axis accelerometer for instant motion control via 2 shoulder trigger controls Use handheld, strapped to belt or body or hung around neck, control audio, lighting, mixing and more! Rechargeable lithium-ion battery