Marquant MMP4-12. Player media type: flash-media, Total storage capacity: 4 GB. Display: LCD, Display diagonal: 71.1 mm (2.8 "). Audio formats supported: MP3 / Midi / WMA / WAV / AAC, Video formats supported: AVI/ ASF / WMV / MP4 / MTV / 3GP / MOV / MPG / DAT / VOB / AKV, Image formats supported: JPG / GIF / BMP. Battery technology: Lithium-Ion (Li-Ion). Weight: 75 g