... Support external SD card 1. 3.5 inch TFT touch screen, resolution: 320*241. Super slim model ... / external SD card5. Types of operation methods: touch screen6. Functions: Navigation, MP3, MP5, JPG picture ... , textbook, 7. Numbers of signal receiver: 21 Channels8. Precision of Locating:Less than 11m9. Antenna ... Denish, Italian, Finnish, English. 3.5 inch touch screen GPS,car navigation(GPS-002)