B015QUPU9Y IK Multimedia iRig Keys 37 USB Compact Keyboard MIDI Controller for Mac/PC

7 velocity-sensitive mini-keys (3 full octaves range plus 1 note)
Modulation and pitch bend wheels
Volume/Data knob (assignable)
Octave/Program Up/Down back-lit, soft-touch buttons
SET button to store and recall 4 different customized setups