GPS HUD Digital Head-up Display Car Truck Speedometer Warning Navigator

Feature: 1.Universal for all cars 2.Head-up display projects vehicle speed on windshield 3.Driving direction display 4.Easy Setup--Plug & Play- Power through Vehicle Cigarette Outlet Jack. No professional installation is required. 5.Compatible with All Cars & Trucks. Use GPS Signal Guided Calculation, No wiring needed to the VSS (vehicle speed signal). 6.Display MPH or KM/h - Simple Push Button Set up. 7.Auto Adjust Brightness thru Light Sensor for Day & night-time Driving. 8.Vehicle Driving Speed Display, Green Color Speed Display, easy on your eye. 9.Over Speed Warning Setting -- Alarm Mute Function. 10.Over-speed warning: a 3 seconds alarm beep and keep ash display will keep warning the driver. Specification: 1.GPS positioning time:1 to 5 minutes in the open air(The bad weather will affect the positioning time).When Searching GPS signal,the satelite icon will flash,just wait until the data shows. 2.Speed deviation:Since the speed data comes from the GPS statelite,slight deviation is unavoidable.you can set the deviation by press setting key. 3.Input voltage:DC 12V from car cigarette lighter. 4.Working temperature:-40 to 80C 5.Driving data deviation is around 5% 6.All driving data will be cleared when power off 7.MPH/KMH unit set up:After turn on device,Long press 3S setting button,then 1 short press.then 1 short turn right until the MPH/ KM/H flash,by turn left or right to choose unit, then short press setting button to enter.then keep short press setting button to exit. Package Included: 1 X GPS HUD Speedometer 1 X User Manual 1 X Non-slip Mat 1 X Car Cigagrette Charger 1 X Reflecting Sticker