Arturia Beatstep, USB MIDI pad controller, 16 Velocity sensitive pads (illuminated), 16 Encoders, 16 MIDI Controller Presets, 16 Sequence presets, IPad compatible (with optional Camera Connection Kit), CV / Gate-Out 3.5 mm, Mini USB input and output, MIDI output 3.5 mm, USB Class compliant, For Windows 7/8 and Mac OSX 10.7 or later