CME Xkey 25, controller keyboard, 25 standard size slim-keys, USB MIDI compliant with iPad (requires optional camera connection kit - not included), Android tablet/phone, Microsoft Surface Pro, Mac and PCs. Ultra slim design and light design, Professional velocity sensitivity and polyphonic aftertouch, USB MIDI compliant, PitchBend buttons with high resolution of pressure sensitivity, Modulation button with continuous MIDI control data, Octave +/- and Sustain buttons, USB powered, incl. USB cable, dimensions: 388 x 135 x 16 mm, weight: 600 gr.