Cars Heads Up Display G4 Car HUD Digital GPS Speedometer With Speedup Test Brake Test Overspeed Alarm LED Display UniversalBullet Points:12 Adjustment Modes: The speed headtoup display has automatic and manual brightness adjustment modes, which can ensure that your driving is glaretofree.2Satellite Icon: There is a satellite icon on the speed headtoup display. It will stop flashing the GPS light after finding the satellite. When it is always on, it means it is in normal use.3Hightodefinition Display: The screen of the digital speedometer is 2.2 inches hightodefinition display, small and exquisite. The HD LCD display is clearer and more intuitive.4Simple Operation: The vehicle"'"s digital speedometer is powered by the onboard charger (supplied), plug and play, no professional installation is required.5Automatic Start or Off Machine: Digital speedometer starts and stops with the car, effectively protecting the car battery maintaining the manual switching mode makes it easier to control the headtoup display.Product Description: Smart Car Digital Speedometer (HeadtoUp Display) System to HassletoFree Plug and Play Operation to UsertoFriendly Control Interface to Compact Dashboard or Console Mount to Digital Multicolor.LCD display shows speed, distance, travel time, voltage and more to GPS Navigation Direction Compass. Automatic synchronization with engine ignition, power on or off to unique acceleration and braking test functions.USB Cable Powered to Universal Vehicle Compatibility Car, Truck, Van, Trailer... Features: Name: Digital Speedometer Model: G4 Material: ABSandPC Screen Type: LED Applicable models: Universal Appearance size: 5.2x5.2x1.4cm or 2x2x0.5inch Product List: Digital Speedometerx1 USB cablex1 Doubletosided tapex1 Suction cup holderx1