Midiplus X2 mini, USB MIDI Keyboard, 25 Velocity-sensitive mini keys, Touch Strips for Pitch Bend and Modulation, Octave Select Button, 4 Programmable knobs for MIDI CC messages, 6 Programmable buttons for transport functions or MIDI CC messages, 6.3 mm Jack input for sustain pedal (not included), Power supply via USB, MIDI Out, Plug & Play for Mac and PC, Dimensions: 409 x 137 x 51 mm