Sony 2GB Walkman, NWZ-S615F, Black . Player media type: flash-media, Total storage capacity: 2 GB. Display: LCD, Display diagonal: 45.7 mm (1.8 "), Display resolution: 320 X 240 pixels. Audio formats supported: AAC, MP3, WMA, Video formats supported: AVC, MPEG4. Frame rate: 30 fps. Continuous audio playback time: 33 h, Continuous video playback time: 7 h