3.5 inch GPS Navigator+PMP (build-in ): 3.5 inch 240*320(QVGA)LCD color screen, with touchable screen Samsung S3C 2440 processor (400Mhz) Star III high sensitivity receiver ,more20 channels OS: Based on Microsoft Windows 4.2 Touch Panel Multi-language support with input method Internal Lithium battery(lasts 5 hours) USB 2.0 (full-speed) support WMV,AVI,ASF,MP3,WMA,WAV media format Txt 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:Localization??0.1 s Dimension:95*77.5*22mm Weight:175G