... touch screen GPS, solution: 480*272 , CPU: SAMSUNG S3C2440A-40 400MHZ GPS (py-401) from pengyuan elec 1. 4 inch TFT touch screen, ... Nand flash / external SD card6. Types of operation methods: touch screen, keystroke7. Functions: Navigation, MP3, MP4, JPG picture, ... simple Chinese, traditional Chinese, English14. with outside speaker GPS PY-401 4 inch TFT touch screen,support different country's map