... -Expo • Hong Kong 5 inch CPND Portable GPS Navigation WiFi :802.11 b/g support 1.5 inch TFT touch screen ... 2100MHz, GSM/GPRS 900/18000MHz(850/1900MHz Optioanl)6. WiFi :802.11 b/g support (Optional)7.Functions: Navigation, MP3, MP4 ... 1 working day!!! 5 inch CPND Portable GPS Navigation WiFi :802.11 b/g support