2015 Universal Car HUD GPS A1 Head Up Display Vehicle Alarm Security System Speedometer KMH/MPH Overspeed Warning For All Vehicles Compatible with All Cars , Vehicles & Trucks, Driving by GPS Signal, No wire needed to the VSS (Vehicle Speed Signal); Powered by Car Charger(Provided), Plug & Play, No professional Installation Required, Easy & Simple Operation; Adjustable Angle Mounting Bracket Lets You Set the Unit at a Desired Angle, and Provide film to ensure more clearer; GPS head up display(HUD)--Projects MPH or KM/h Speed on Windshield and Support Overspeed Alert setting; Only the Speed, Simple & Safe, Always Keep Your Eyes on the Road!