Features:Front view huv You can view navigation and information at eye Level instead of lookingdown repeatedly to ensure safer driving DOUBLE SYSTEMGPS System(For All Cars) OBD System(For OBD2 EOBD Car) 1. OBD mode Display information:Speed Water Temperature Voltage Fuel Consumption Speed Single Mileage Total Mileage Accumulated Travel Time Driving Direction Number of Stars Searched Altitude Time Inlet Pressure Engine Oil Temperature Air-fuel Ratio Turbo Pressure Inlet Pressure Acceleration Test Brake Test Read Data Stream. Alarm function: overspeed alarm, rotation speed alarm, high water temperature alarm, low voltage alarm, engine failure alarm, clear fault code. 2. GPS mode display information:Vehicle speed Travel time Satellite time Altitude Number of satellites Travel direction Single mileage Voltage Acceleration test Brake test. Alarm function: overspeed alarm and low voltage alarm. Features: High-definition display screen, multiple UIs can switch between different screens, interface digital color can be adjusted freely. New navigation function; select any mode and turn on the Bluetooth connection of the mobile phone to display it. Navigation method: need to download the WiiYii APP software, the HUD and the smartphone are connected with Bluetooth wirelessly, and the navigation information will be displayed synchronously through the APP. Other FQA:1.Q:Will the product shut down automatically? A:Yes, after the car stops, the product will automatically shut down after a short period of time. 2.Q:How to install? A:The OBD system uses the OBD cable to connect to the OBD2 interface. The GPS system uses a USB cable to connect to the car cigarette lighter interface.1*Host 1*obd line 1*car charger line 1*non-slip mat 1*Instruction 1*Cleaning cloth