9inch BIG screen for truck? Brings a 9-inch high-resolution and large screen, HD display providing clearer viewing for poor eyesight, can be seen in bright sunlight, say goodbye to silly sunshades, upgraded internal memory 3x faster buffering. Choose from a selection of voices that will provide you turn by turn voice navigation. Real man or woman voice broadcast you don't have to look on the GPS screen all the time. It makes your driving safer, reduce fatigue driving, away from the ticket.Other Security Alert Types: Average Speed Camera, Red Light Camera, Railway Crossing, High Accident Zone, City Entry Piont, Dangerous Area etc. GPS navigation supply regular maps upgrades and any question inquiry. USA local brand, established professional technician team in the United States, have been recognized by our customers.