Korg microKEY 25 USB Keyboard - 25x mini-keys, velocity sensitive keyboard, Arpeggiator, pitchbend wheel and modulation Joystick, octave up/down buttons, USB bus powered. Compatible with Windows (XP & Vista) and Mac OS X. Includes Korg M1LE soft synth, Lounge Lizard Session and Toontrack EZDrummer Lite, Dimensions WDH: 395 x 131 x 53 mm, Weight: 0,65 kg