iMars Universal Car HUD Head Up Display GPS Speedometer With Over-Speed Alarm Tired Driving Warning

Description: 1.Keep your eyes on the road. At 65 mph,looking down for one second to check the speedometer means driving blind for 95 feet,many accidents start during thetime a driver glances down and fails to see sudden traffic changes ahead.Now, drive safely by never looking down for checking the speed again. 2.Know your true speed. This product with GPS function, could determine the true speed of the vehicle.There are several reasons why there may be a difference speedometer and the HUD. First,calibration set by vehicle manufacturers to read high to ensure their speedometersnever indicates a lower speed than the actual speed of the vehicle. Secondly,speedometer inaccuracy due to aftermarket modifications such as different tire and wheel sizes or different gearing. Feature: 1.Head-up display,projects vehicle speed on the windshield. 2.Driving time and distance calculate and display. 3.Easy set up plug and play power through vehicle cigarette outlet jack. 4.Compatible with all cars and trucks,using GPS signal guided calculatiuon.No wiring needed to the VSS(vehicles speed signal). 5.Display MPH or KM/h,simple push button set up. 6.Auto adjust beightness sensor for day and night time driving. 7.Vehicle driving speed display.Green color speed display. 8.Over speed warning setting.Alarm mute function.per 3 seconds alarm beep and keep flash display will keep warning driver. Package Included: 1 X GPS HUD Speedometer 1 X Non-Slip Mat 1 X USB Cable 1 X Reflecting Sticker 1 X User Manual Specificaiton: Input Voltage DC5V-12V Adapter Voltage Input:DC12V-24V Current Draw 450mA Speed Ranges 0-158MPH/0-255Km/hr