DESC: Product Features: Interface: USB 2.0; Expansion Slots: MicroSD (Transflash) Card; Storage Capacity: 16 GB; Screen Size: 2.4 inch; Main Storage Type: Built-in Memory; Number of Songs: 4100; Usage: Music, Photo Viewing, Recording, Video; Audio Format: AAC, Audible, FLAC, MP3, Ogg Vorbis, WAV, WMA; Video Format: H.264, MPEG-4, WMV; Max Video Resolution: 320 x 240; Outputs: Headphone Jack; Additional Features: FM Stereo Tuner, Radio Recorder, Voice Recorder; Battery Life: Up to 24 Hours; Battery Type: Rechargable Battery; Power Source: Internal Battery; Depth: 7 in.; Height: 1.2 in.; Width: 5 in.; Weight: 2.1 oz.; Weight and Size: Compact; Family Line: SanDisk Sansa