Features: 3.5 inch 240*320(QVGA)LCD color screen, with touchable screen AT440 processor (300Mhz) OS: Based on Microsoft Windows 5.0 Multi-language support with input method Internal Lithium battery USB 1.1(full-speed) Support WMV,AVI,ASF,MP3,WMA,WAV media format Text Format Files Browser(E-book) Photo Scan: JPEG,BMP SD memory card expansion Headphone/built-in speaker SD Card/Map (option) Locates:10 Meter. 90% Sensitivity 0.1 m/s. Localization Time: 0.1 s Dimension:98*80*22mm Weight:196G Accessories: Main Unit Car lighter adapter AC Adapter Carmounting bracket User Manual SD Card reader OR USB line