Our head up displays have a variety of features Strong Signal Reception Our HUD uses dualmode chip technologyGPSBDS signalswith a high refresh rate of 10 Hz for rapid, accurate reception. It can pick up to 32 satellite signals, it maintains a stable connection for precise speed data, whether youre driving in urban or rural areas Automatic Brightness Adjustment The HUD features intelligent light sensors that automatically adjust screen brightness based on external light conditions. This ensures clear visibility in different lighting situations, whether its bright daylight or dimly lit environments at night, providing a comfortable display for enhanced driving safety Suitable for all Cars with USB Port Designed with simplicity in mind, our HUD is easy to install and suitable for all cars with USB port, including cars, motorcycles, and trucks. Whether you drive a compact sedan or a large commercial vehicle, installation is effortless, allowing you to enjoy the convenience and safety benefits of our digital speedometer Speeding Alert Function To enhance driving safety, our car HUD is equipped with a speeding alert function. When the vehicle exceeds the preset speed limit, the speedometer emits audible alerts or flashes warnings, prompting drivers to take notice and decelerate, effectively preventing the risks associated with speeding and ensuring driver and vehicle safety Customize Your Personal HUD With a simple onebutton setup, you can tailor the screen display data, brightness level, overdrive settings, and choose between displaying speed in kilometers per hour KMH or miles per hour MPH Clearer displayOur HUD are designed with large fonts, together with the metal blackening technology, which can effectively eliminate excess reflection and ensure a clearer display Friendly Reminder The performance of this product is closely related to the car environment, if your car glass with metal explosionproof film, it may affect the signal reception effect, we recommend that you choose carefully according to the actual situation. Speed Accuracy A slight margin of error 0.61.8 mphh is normal for all GPSbased speed tracking devices, consistent with industry standards. If precise realtime speed measurement is critical for your needs, we advise reviewing product details thoroughly. GPS signal strength directly affects the stability of the data, it is recommended to use in the open environment for a better experience. It should be noted that, in tunnel passage, underground garage and rainy and foggy weather and other special scenes, all satellite positioning equipment will have a short signal interruption phenomenon, we hope you understand and bear with us,if there is any problem with the product, please contact us to give you a solution, we will reply you within 24 hours.