Auto-Tune Vocal Studio TDM combines AVOX Native with Auto-Tune 7 TDM for Mac OS X and PC. * Bundles Auto-Tune 7 TDM with AVOX Evo, Substantial savings compared to buying Auto-Tune 7 and AVOX Evo separately, That"s pretty much it * Mac OS 10.4.11 or higher; Windows 7, Vista or XP, Requires iLok USB smartkey and access to ilok.com (from any computer)