WYOBD G4 GPS Head-Up Display Car Electronics HUDProjector Display Digital Car Speedometer Accessories For All CarsTips: HUD Drive: The best head-up display for any car 1Head-up display (HUD) for everyday commute to stay focused and connected while driving2Installed on the dashboard at one time, the cables are concealed, and the appearance is the same as the original car, The machine does not damage the car, and use safe. For all models, the connection is a USB interface.5v The original car is not damaged, the smart is started to stop with the carHUD works: Receive the data from the car and display it on the machine.What is the difference between G4 and G4S? Usually, users prefer to buy a machine with G4 ambient light, which has a good-looking picture and many functions. G4S mainly displays a simple mode: the function of speed + time. ---The G4 machine chip uses the latest upgraded hardware, so the G4 will position the satellite faster than the G4S based on GPS. G4 Function: 1 speed2driving direction guide3 5 color mood lights4 Simple mode display5 Ambient light acceleration display6: One-key switch between kilometers and miles7: Automatic photoreceptorCall the police:1 Overspeed alarm2 Fatigue driving reminderG4S Function: 1: Vehicle speed2: TimeCall the police:1: Overspeed alarm2: Fatigue driving reminder Alarm functions Improve driving safety 1Overspeed alarmAlarm when the vehicle speed reaches the set default value of 150KM/H (30- 250 setting) 2Fatigue driving: Reminder after continuous driving exceeds the default value of 4.0 hours 1-8h setting G4S FUNCTION G4 FUNCTIONMultiple placements Any car can be used Can be used with USB (5v).One USB cable, plug and play. Perfectly compatible with vans trucks,buses carsoff-road vehicles suvsand other vehicles Non-destructive installation,Plug and play1Plug the USB cable into the cigarette lighter interface2The wire is inserted into the A-pillar seal3Connect the USB side to the UHD put in the right placeAutomatic brightness, switch with engine1Satellite icon: After the satellite is found,the GPS light stops flashing and stays on for normal use.2Vehicle speed display3Ambient light: speed changes over 204Compass: N (North) E (East) W (West) S (South)5Speed unit: KM/H (kilometers) MPH (miles)About transportation After receiving the