Detailed Product Description car gps navigation with GSM function1. 7 inch TFT touch screen, solution: 800*4802. CPU: ... : Navigation, MP3, MP4, JPG picture,E-Book9. Numbers of signal receiver: 20 Channels10. Support FM Transmitter11. Built-in 64MB SDRAM12. Antenna ... products. Our main products include car navigation GPS, DVB-T receiver / Set Top Box, DVD, DIVX, music systems and so on ...