SHAKLZOP Head-up Display

Compatible With: All Car Models with USB port. Warning: The speed unit can't be adjusted. Before placing an order, please choose the right speed unit. Speed Unit: KM/H (Kilometers per hour), MPH (Miles per hour, Only for US/UK). Description: 6. Function: GPS Speed, Automatic Brightness, to Play. How to Install (First Use) 1. Noted: Before installation, drive your car in an outside place, not in garages or indoors, and then open your car window; 2. the USB cable into your car USB port or car cigarette lighter ports, and the other end to your device; put it on the dashboard, and stick the reflective film on the car windshield glass; 3. Turn on your car, it will take about 1-3 minutes to search for the signal; 4. When "0" appears, it is successful to install; driving your car on the road, it can read your real speed data; 5. Unplug the cable, the device will turn off. ========== Rated Power : DC 5V Size Name : 70*42.8*20mm / 2.76*1.69*0.79inch Wire or Wireless : Wired Power Supply : Car USB Port Function : GPS Speed, Automatic Brightness, Play Product Color : Black Light Color : White Light/Green Light(Optional) Speed Unit : KM/H(Kilometer per hour), MPH(Mile per hour, for US/UK). Please Note : the speed unit is fixed. Before placing an order, please choose the right speed unit.