BEHRINGER U-CONTROL UMA25S Stage performer and producer keyboard featuring 25 velocity-sensitive, full-size plus half-action keys Built-in USB audio interface to connect your instruments and mixer to your computer for recording and playback Powerful multi-platform digital audio workstation software energyXT2 Compact BEHRINGER Edition included Audacity audio editor, comprehensive podcasting software and over 100 virtual instruments plus more than 50 effect plug-ins included 21 assignable controllers storable in User Presets: 8 knobs, 8 buttons (with transport-control option), 2 wheels, 1 fader and 2 pedal ports