3.5 inch 240*320(QVGA)LCD color screen, with touchable screen Samsung S3C 2440 processor (400Mhz) SIRF Star III high sensitivity receiver ,more20 channels OS: Based on Microsoft Windows CE.Net 4.2 Multi-language support with input method Internal Lithium battery USB 1.1(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 0.1S Localization time:Localization£º0.1 s