Behringer U-Control Umx25 The Ultimate Studio In A Box: 25-Key Usb/Midi Controller Keyboard With Usb/Audio Interface, 50 Software Instruments And Ableton&laquo; Live Lite 4 Behringer Edition Velocity-sensitive USB/MIDI keyboard featuring 25 full-size keys and unbeatable programming versatility, real-time control and playability USB/audio interface to connect your instruments and mixer to your computer for recording and playback Powerful DAW software Ableton Live Lite 4 BEHRINGER Edition included Plug and play with Mac OS X and Windows XP Plug and play with Mac OS X and Windows XP