Portable MIDI keyboard controller from Xkey series that is lighter than an iPad, weighing only 600 g, and extremely slim - only 16 mm high. It provides 25 full size, velocity-sensitive keys with polyphonic aftertouch, is 100% MIDI compliant and is powered and upgradable via a single USB cable, no batteries required. It can be used with any music apps on various devices, as well as free Xkey Plus application for custom configuration of the keyboard. The controller also provides pressure sensitive Pitch Bend and Modulation buttons, Octave +/- push buttons and Sustain button, activity indicator LED and robust, high-quality aluminium body that has the same finish as a MacBook. Micro USB cable is included in the package. Dimensions: 388 x 135 x 16 mm.