... cold start45sec, hot start 1sec(outdoor), worm start18sec5. Built in GPS antenna and it also can connect external antenna6. SDRAM128MB,4G ... DC 12V, charged by AC charger or car charger10. Two track high quality sound output for connecting earphone11. Voice Navigation12. Support ... .Environment and temperature: Operation 0-50 , storage: -10-60 GPS navigation (5" TFT touch screen, Sirf Atlas IV , FM+AVIN ...