3.5 inch 64K color TFT LCD (320X240) Samsung S3C 2440 processor (400Mhz) Star III high sensitivity receiver, more 20 channels OS: Based on Microsoft Windows CE. Net 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: 120 x 80 x 29.5mm Weight: 230G