TEAC MP3 Player 4GB. Player media type: flash-media, Total storage capacity: 3 GB. Display: LCD, Display diagonal: 50.8 mm (2 "). Continuous audio playback time: 8 h, Battery technology: Lithium-Ion (Li-Ion). Weight: 43 g. Dimensions (WxDxH): 73 x 43 x 9 mm, Media types supported: MP3, MP4, WMA, DRM9, JPG, Standard interfaces: USB