3.5” LCD Display Compact mini 3.5 inch head-up display with a built-in light sensor helps the head-up display to adjust its brightness automatically according to the environment. This car HUD rear visor helps you read data more clearly and is an essential gadget for your driving. Rich Content : speed/rpm/water temperature/voltage/fuel consumption/clock/direction of travel/single mileage/single drive time/100km acceleration time/elimination of fault codes and other driving data. so you can easily read your car data on the windscreen without looking down. Plug and Play Connect with OBD cable or USB cable. easy to install.OBD2 mode is only available for most of the vehicles manufactured after 2008 (if you want to use OBD2 mode. please check if your vehicle has OBD2 protocol or contact us to confirm before purchase).GPS mode is available for all vehicles (if your vehicle is not compatible with OBD. please use GPS mode).tips: please use GPS mode. GPS mode is available for all vehicles (if your vehicle is not OBD compatible. please use GPS mode). Safety Alerts and Multiple Display Modes Speed alert and fatigue driving alert also 5 kinds of abnormal alarm functions. to ensure your safety in long-distance driving.9 display modes interface. you can choose your favorite screen. free to switch between multi-function displays or simple function displays.9 display modes interface. you can choose your favorite screen. free to switch between multi-function displays or simple function displays. After-sales guarantee Each of our products will have factory inspection report to ensure the integrity of the product. we provide 1 year warranty. within a year of damage. we will replace a new product for free.Electronics; Car & Vehicle Electronics; Car Electronics; Car Video; Overhead Video