TEAC MP-450 4GB, grey. Player media type: flash-media, Total storage capacity: 4 GB. Display: LCD, Display diagonal: 50.8 mm (2 "). Audio formats supported: MP3, WMA, DRM9, Video formats supported: AVI, Image formats supported: JPG. Continuous audio playback time: 15 h, Battery technology: Lithium Polymer (LiPo). Weight: 40 g