M-Audio Oxygen 61 MKIV | 61-Key USB MIDI Keyboard & Drum Pad Controller (8 Pads / 8 Knobs / 9 Faders), VIP Software Download Included Versatile MIDI keyboard controller powered by USB connection to computer 61 full-size, synth-action velocity-sensitive keys 8 velocity-sensitive trigger pads for beat production, clip launching and more 8 assignable knobs for mixing and manipulating plug-ins/instruments Now Includes Pro Tools | First and Eleven Lite for all new and existing customers, as well as Virtual Instrument Player (VIP)