Novation Launch Control XL MK2, USB Controller For Ableton Live, 24 x Rotary controls with LED lighting, 8 x Faders: 60 mm, 24 x Assignable buttons, 2 x Template buttons, 26 x LEDs in the keys, Create custom controller mappings, USB Bus-Powered, WIN 7/8, Mac OSX 10.8 or later and iOS 6/7, Dimensions (W x D x H): 239 x 239 x 39 mm, Includes USB cable, Ableton Live Lite 9, MIDI controller editor and Loop Master Samples