Marquant MMP4-9. Player media type: flash-media, Total storage capacity: 2 GB, Compatible memory cards: SD. Display: LCD, Display diagonal: 61 mm (2.4 "), Display resolution: 320 x 240 pixels. Audio formats supported: MP3, WAV, WMA, Video formats supported: MPEG-4/AVI/WMV, Image formats supported: JPG. Headphone connectivity: 3.5 mm, Headphone frequency: 20 - 20000 Hz. Battery technology: Lithium Polymer (LiPo)