1. 7 inch TFT touch screen, solution: 480*234 2. CPU: SAMSUNG S3C2440A-40 400MHZ 3. IC: Sirf StarIII 4. Operating system: WinCE 4.2 5. Storage: internal 64M Nand flash / external SD card 6. Types of operation methods: touch screen, keystoke 7. Functions: Navigation, MP3, MP4, JPG picture, textbook 8. Tools: calculator, calendar, alarm clock, etc. 9. Numbers of signal receiver: 20 Channels 10. Precision of Locating:Less than 10m 11. Antenna: with GPS internal Antenna and reserved external GPS Antenna jack 12.DV IN: 9-28V 13.support different country''''''''s map; support 16 languages including French, German, Spanish, Holland, Hungarian, Portuguese,Russan, Swedish, Norwegian, Denish, Italian, Finnish,Romanian,simple Chinese, traditional Chinese, English 14. with outside speaker, with FM