Dual Mode: Dual mode dual system OBD and GPS, system is more stable and smoother, richer data display and more powerful information function. Multifunctions: Car HUD has 9 interfaces and multifunction, such as fault clearing, overpass alarm, low pressure alarm, water temperature alarm, speed alarm, etc. Easy Installation: The bracket can be rotated in all directions to adjust the visual angle and height, and the installation method is more diverse, convenient for using. Compatibility: Fit for most OBD II models, system communication strictly according to SAE J1939 protocol standard, CAN communication is more stable, compatible with some models, can read more than 100 items of ECU data. High Quality Material: Car HUD display is made of high quality PC and ABS material, high temperature resistant, not easy to deform, sturdy and durable.