Acorn Masterkey 25, USB MIDI-Keyboard with 25 Keys velocity sensitive, Pitch bend and modulation wheels (assignable), 1 assignable fader, 4 assignable knobs, LED Display, sustain foot switch input jack, USB class-compliant, incl. Presonus Studio One Artist Software and USB-Cable, Dimensions: 46.9 x 19 x 5,7 cm (WxDxH), Weight: 2 kg