USB buspowered (less then 100 mA), Sustain-pad, 25 Keys with touchsensitivity and 4 Velocity-curves, included USB-cable and Softwarebundlesupports Apple iPad OS 4.2.1 and higher, 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!), connection: USB-Mini, Octave-Shift-pad (Octave range -4 / +4), USB MIDI Controller, dimensions: 325 (W) x 13 (H) x 83 (T) mm, weight: 244 g, Modulations-pad, Pitch-pad (Up/Down), Requirements: Apple Camera Connection Kit, active USB Hub recommended