Output REV, virtual Instrument, based on NI Kontakt/Kontakt Player, more than 1000 Reverse Instruments, play free or lock to Tempo, Play multiple loops at once, Stutter Effect, Filter or other Effects like Delay, Reverb, Distortion, Chorus, Lo-fi can all be automated and also triggered by keys on the keyboard, Box-Version with USB-Stick, System requirements: Internet connection, NI Kontakt or Free Kontakt player version 5.3.1 or higher, Mac OS X 10.7, OS X 10.8 or higher, Windows 7 or higher, 4 GB of RAM, 15 GB of free drive space.