Arturia Keystep Pro, USB / MIDI controller keyboard with sequencer, 37 Mini keys with touch response, aftertouch, LED above each button for visual feedback, 4-Track step sequencer with 16 step buttons, up to 64 steps per sequence, up to 16 notes of polyphony per step, 24-Part polyrythm drum sequencer, Melody sequencer with real-time recording, step recording and step editing (pitch, velocity, gate length and time shift), Performance oriented sequencer, Arpeggiator, Chord mode, Controller mode, OLED display, Metronome output: 6.3 mm jack, 4 CV / Gate / Mod outputs: 3.5 mm mini jack, 8 Drum gate outputs: 3.5 mm mini jack, 1 MIDI input, 2 MIDI outputs, USB, Clock sync, Sustain pedal input: 6.3 mm jack, Dimensions (W x H x D): 589 x 38 x 208 mm, Weight: 2.7 kg, External power supply and USB cable