Marquant MMP4-24. Player media type: flash-media, Total storage capacity: 4 GB, Compatible memory cards: microSD (TransFlash). Display: CSTN, Display diagonal: 45.7 mm (1.8 "). Audio formats supported: MP3, MP4, WAV, WMA, Video formats supported: ASF, WMV, Image formats supported: BMP, GIF, JPG. Headphone connectivity: 3.5 mm. Interface: USB 2.0