CME Xkey 37 Mobile MIDI Keyboard

Xkey 37 Silver

37 key Ultra slim USB MIDI Controller with Full Velocity Sensitivity,
Polyphonic Aftertouch, Full-size keys, and class compliant USB connectivity
for most music creation applications. OSX, Windows, and iOS. Includes
breakout cable for direct MIDI out and expression pedal.
If you write music, then the Xkey 37 belongs in your mobile rig.