Available in 25-, 49- and 61-key keyboard versions, the new Oxygen Series (MKV) offers powerful features for modern music production with Smart Chord and Smart Scale technology, auto-mapping, built-in arpeggiator and Note Repeat. The Oxygen series keyboard controllers (MKV) feature eight backlit velocity-sensitive pads, nine assignable faders (one assignable fader on the Oxygen 25), eight assignable knobs, and full velocity control of keys and pads.