Apple iPod shuffle 2 GB Silver (4th Generation) (Discontinued by Manufacturer) 2 GB capacity for about 500 songs Up to 15 hours of audio playback on a single charge. This item is compatible with computers, PC with USB 2.0 port; Windows 7, Vista, or XP Home or Professional (SP3) or later; and iTunes 10.7 or later Easy-to-use control pad for playing your music, audiobooks, and podcasts Support for AAC, Protected AAC (iTunes Store), MP3, MP3 VBR, Audible, Apple Lossless, AIFF, and WAV audio formats One-year limited warranty