 Internal accelerometers are used by some applications to respond to shaking the device (one common result is the undo command) or rotating it vertically (one common result is switching from portrait to landscape mode).Initially shipped with iOS 6, which was released on September 19, 2012, it can play music, movies, television shows, eBooks, audiobooks, and podcasts and can sort its media library by songs, artists, albums, videos, playlists, genres, composers, podcasts, audiobooks, and compilations.Users can rotate their device horizontally to landscape mode to access Cover Flow.