iNeibo Universal GPS HUD Head Up Display KMH MPH Speedometer with 2 Modes (HUD/Standard) & 2 Level Speed Alarm for all Cars Vehicle Truck -Quick and Easy Installation (HUD-G960) DUAL MODE DESIGN : HUD Mode(Project)Projects MPH or KM/h speed on windshield; Non-HUD Mode (Standard)You can put it on the instrument panel / the top of control platform , look at the HUD and read the speed directly. TWO LEVELS SPEED ALARM : Urban road alarm and high way alarm, you can set the alarm according to your driving condition. FULLY COMPATIBLE WITH all cars , vehicles & trucks, driving by GPS signal, No wire needed to the VSS (Vehicle Speed Signal); It can be also used as Non-HUD mode(standard) for your motorcycle & boat (you need to solve the water resistance and power supply if then) ACCURATE SPEED, SIMPLE & EASY OPERATION : With GPS technology for calculating the speed, it is accurate; powered by car charger(Provided), Plug & Play, No professional installation required. SIMPLE & SAFE: Only the speed, so, simple, so that you can always keep your eyes on the road, NOT interfered by other gauge factors . We provide film to ensure more clearer when project to windshield; Green color display manually/automatically adjust brightness through sensor for day & night-time driving, clear & Comfortable, never feel tired on your eyes.