DESC: Product Features: Interface: USB; Storage Capacity: 80 GB; Screen Size: 3.2 inch; Main Storage Type: Built-in Memory; Number of Songs: 20000; Usage: Music, Photo Viewing, Video; Audio Format: AAC, MP3, WMA; Video Format: H.264, MPEG-4, WMV; Additional Features: FM Stereo Tuner; Battery Life: Up to 20 Hours; Power Source: AC/DC Adapter, Rechargeable via USB cable; Depth: 0.5 in.; Height: 4.3 in.; Width: 2.4 in.; Weight: 4.5 oz.; Weight and Size: Widescreen; Family Line: Zune