RYSJM | G29 Car Head up Display GPS HUD Digital Speedometer LED Compass Function Overspeed Alarm for Car Truck SUV RV Accessories

G29 GPS HUDFunction: Vehicle speed, time, single travel time, compass, number of satellites, units of kilometers (KM) and miles (MPH), free switching, automatic light sensing function, and manually adjustable brightnessAlarm function: overspeed alarm: with three-stage overspeed alarm function promptSpecial reminder: The working voltage of this product is 5V. It is prohibited to modify the installation line or use a voltage higher than 5V for power supplyPackage Included:1 X head-up display

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