1. 4.3 inch TFT touch screen, solution: 480*272. 2. CPU: SAMSUNG S3C2440A-40 400MHZ 3. IC: Sirf StarIII ; with bluetooth 4. Operating system: WinCE 4.2 5. Storage: internal 128M Nand flash / external SD card 6. Types of operation methods: touch screen 7. Functions: Navigation, MP3, MP4, JPG picture, textbook，calendar 8. Numbers of signal receiver: 20 Channels 9. Precision of Locating:Less than 10m 10. Antenna: with GPS internal Antenna and reserved external GPS Antenna jack 11. Battery: 1200 mAH lithium battery can be charged by exterior DC 12V, or can be charged by car lighter. 12. DV IN: 12V 13. support different country's map; support 16 languages including French, German, Spanish, Holland, Hungarian, Portuguese, Russian, Swedish, Norwegian, Denish, Italian, Finnish, Romanian, simple Chinese, traditional Chinese, English 14. with outside speaker (with TMC for choice) We have many models of car speaker component kits;profession speaker component kits; Loudspeaker Components and GPS , with high end good quality and best prices . If you are interested in our products ,please feel free to contact us . OEM/ODM service :available