Zune was a media management software for
Microsoft Windows that functions as a full media player application with a library, an interface to the Zune Marketplace, and as a media streaming server. The software is used to sync with all devices with Zune functionality including the
Zune 4, 8, 16,
30,
80, 120,
Windows Phone 7, and
Microsoft Kin. Zune devices work exclusively with the Zune software, which applies many design principles of Microsoft's
Metro design language.