The CME Xkey 25-Key Air Mobile Bluetooth MIDI Controller combines one of the sveltest keyboards available on the market with wireless functionality for one of the most versatile experiences in creating electronic music. The model brings in 25 full-size keys with polyphonic aftertouch and the onboard octave shifting/pitch bending found standard on larger controllers while clocking in at the weight of a pound and a half. Throw in the wireless Bluetooth capabilities for ease of use whether you're playing on your couch or hitting the stage.