Feature: 1. OBD Mode Display: vehicle speed, rotate speed, water temperature, voltage, driving distance, driving time, fuel consumption, local time, oil temperature, driving direction, number of satellites, turbine pressure, air fuel ratio, intake pressure, acceleration test, brake test, 100 km acceleration test, and read the whole vehicle data stream. 2. Alarm: overspeed alarm, rotate speed alarm, fatigue driving alert, high water temperature alarm, low voltage alarm, engine fault alarm. 3. Free switch between Centigrade and Fahrenheit. 4. GPS Mode Display: speed, voltage, mileage, driving time, local time, altitude, driving direction, number of satellites, acceleration test, brake test, 100 km acceleration test. 5. No Ghosting, AI Photosensitive: Built-in light sensing system, 18-level automatic light sense without flicker, clear during the day, soft and non-glare at night, cloudy, rainy, and comfortable in the evening. 6. Exquisite design: High-definition display lens, not affected by external light. Plug and play, easy to operate. 7. OBD+GPS dual mode is applicable to all models. Plug and play, easy to operate. Specification: Features: OBD Mode Display: vehicle speed, rotate speed, water temperature, voltage, driving distance, driving time, fuel consumption, local time, oil temperature, driving direction, number of satellites, turbine pressure, air fuel ratio, intake pressure, acceleration test, brake test, 100 km acceleration test, and read the whole vehicle data stream. Alarm: overspeed alarm, rotate speed alarm, fatigue driving alert, high water temperature alarm, low voltage alarm, engine fault alarm. Free switch between Centigrade and Fahrenheit. GPS Mode Display: speed, voltage, mileage, driving time, local time, altitude, driving direction, number of satellites, acceleration test, brake test, 100 km acceleration test. No Ghosting, AI Photosensitive: Built-in light sensing system, 18-level automatic light sense without flicker, clear during the day, soft and non-glare at night, cloudy, rainy, and comfortable in the evening. Exquisite design: High-definition display lens, not affected by external light. Plug and play, easy to operate. OBD+GPS dual mode is applicable to all models. Plug and play, easy to operate. Specifications: Model: C2 Color: Black Product size: shown as picture Package size: 16*13*7.5cm Package weight: 340g Navigation using method: Download WiiYii APP software, connect Head up Display and smartphone via BT, and display navigation information synchronously through APP. Package List: 1 x Head up Display Main Unit 1 x OBD Cable 1 x User Manual 1 x Non-slip Mat 1 x Cigarette lighter cable Package List: 1 x Head up Display Main Unit 1 x OBD Cable 1 x User Manual 1 x Non-slip Mat 1 x Cigarette lighter cable