Prestigio Libretto PER3052B. Diagonal: 127 mm (5 "), Technology: TFT, Display resolution: 800 x 480 pixels. Document formats supported: pdf, epub, Audio formats supported: MP3, WMA, WAV, FLAC, Image formats supported: JPG, BMP. Interface type: USB 2.0. Operating system provided: Linux. Processor clock speed: 400 MHz, Built-in processor: Boxchip F10