Sweex Optimuo MP4 Player Green 4 GB. Supported file systems: FAT32. Image formats supported: JPG, GIF, BMP, Video compression formats: AMV, Audio formats supported: MP3, WMA, AAC, OGG, MP1, MP2, ASF. MP3 bit rates: 320 Kbit/s, Frequency response: 20 - 20000 Hz. Compatible memory cards: microSD. Display: TFT, Display diagonal: 45.7 mm (1.8 "), Display resolution: 160 x 128 pixels