Sytech SY-7904. Player media type: flash-media, Total storage capacity: 4 GB. Display: TFT, Display diagonal: 88.9 mm (3.5 "), Display resolution: 320 x 240 pixels. Audio formats supported: CBR, AAC, APE, FLAC, MP3, OGG, WMA, Video formats supported: XVID, WMV, AVI, RMVB, FLV, MPEG1, MPEG2, MPEG4. Supported radio bands: FM. Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 1650 mAh