Korg nanoKONTROL 2 - color: black, USB MIDI controller, 8 fader, 8 knobs, solo/mute/record pad for each channel, Transport-Keys: Rew/FF/Stop/Play/Rec, Cycle-key, Marker-key, Track-key, connection: USB-Mini, USB buspowered (less then 100 mA), dimensions: 325 (W) x 30 (H) x 83 (T) mm, weight: 293 g, incl. USB-cable and Softwarebundle supports Apple iPad OS 4.2.1 and higher, Requirements: Apple Camera Connection Kit (not included), iPad App must support Core MIDI (Korg does not take responsibility of compatibility! Problems could accur whenever Apple changes the OS and/or releases new models!), active USB Hub recommended