M-Audio Oxygen 25 MK5, USB MIDI Controller Keyboard, With 25 velocity-sensitive keys, 8 velocity-sensitive trigger pads with note repeat function, 8 assignable knobs, Preset and DAW buttons for automatically assigned instruments and plug-ins, Assignable fader to control plug-in parameters, Smart Chord & Smart Scale mode, Arpeggiator with control for type, octave, gate and swing, Transport buttons for DAW control, LC display, Pitch bend and modulation wheels, Sustain pedal input, USB 2.0 (bus-powered), Dimensions (W x D x H): 492 x 243 x 94 mm, Weight: 1.8 kg, Incl. Software package (download): Ableton Live Lite, MPC Beats, 2 virtual instruments from AIR Music Technology (Hybrid, Mini Grand), 5 MPC Beats Expansion Packs and MIDI Editor software, Incl. USB cable and Quickstart guide