TEAC MP-255. Player media type: flash-media, Total storage capacity: 8 GB. Display diagonal: 45.7 mm (1.8 "). Audio formats supported: MP3, WMA, Video formats supported: AVI. Continuous audio playback time: 10 h, Battery technology: Lithium Polymer (LiPo). Weight: 30.5 g, Depth: 7.8 mm, Height: 41 mm