XLN Audio Addictive Keys Upgrade from OEM Version, Virtual keyboards plugin, 3 instruments: grand piano, piano and Rhodes MKI, warm tone and unique sound, Fast loading and smart workflow, Mix and match microphones, High quality producer presets, Creative and professional effects, Producer presets incl. preview with played phrases, Available for Windows XP and higher, Mac OSX 10.5 and higher, Formats: VST, AU and RTAS, Attention: license only - no media (CD/DVD) included, requires download from manufacturers website - installation process requires an active internet connection, requires a registered version of Addictive Keys OEM