Functions: 100% compatibility OBD+GPS dual system. OBD2 system: Function: vehicle speed, water temperature, voltage, fuel consumption, RPM, clock, single driving time, driving distance (single/total), intake preure, oil temperature, air-fuel ratio, turbo preure, altitude, driving direction, throttle, km per liter, intake air temperature, transmiion temperature, engine load, slope, tilt angle, acceleration test, brake test. Alarm: Overspeed Alarm, RPM Alarm, Water Temperature Alarm, Voltage Alarm, Tilt Alarm GPS satellite positioning, make sure you don't go in the wrong direction. Perfect for traveling and driving adcentures. Obtain the current driving speed, with over speed alarm function, as well as display the local time. Real-time voltage monitoring, can avoid safety hazards caused by too high or too low voltage, prolonging the lifespan of the battery. With this head-up display, you can clear the fault codes yourself without having to go to a repair store and pay for the repair. It allows you to understand your car more clearly without looking down at the dashboard and adds a sense of technology to your car. Suitable for all vehicles, such as vans, trucks, buses, cars, off-road cars, SUVs, and other Vehicles. Specification: HUD Model: P2 Material: ABS+PC System: OBD+GPS dual system GPS system: Compatible with all cars. OBD system (cars that support standard OBD2 standard interface) NOTES: OBD2 model can work for OBD2 gasoline vehicles produced after 2004 in USA, and OBD2 gasoline vehicles produced after 2008 in other countries. OBD2 model is not applicable for the following cars: Incompatibility:American models: Dodge, JEEP, IMSEOER, Chrysler and cars manufactured before 2004 in USA Incompatibility:French and Italian cars are not available: Fiat, Maserati, Lamborghini, DS, PEUGEOT , Citroen, Renault, Simca etc. Incompatibility:Some Japanese cars are not available: Suzuki, Mazda 6, INFINITI (QX50 Q50 Q501), Toyota AVANZA in 2013, Lexus (is250, ex250, ES300H), Honda (jazz, CRV) and cars manufactured before 2008. Incompatibility:Korean KIA and some cars of Hyundai (2013 Hyundai Sonata, 2017 KIA Soul PS, etc.) Incompatibility:Hybrid and diesel vehicles, pickups, RVs, cars with modified automotive computers, Volvo, Switzerland, Chrysler Group, all brand models under Fiat Group. Incompatibility:German cars before 2004 For the above cars can not use OBD2 models , please use GPS models. Package Included: 1 x P2 HUD 1 x Micro USB Cable 1 x Non-slip mat 1 x OBD Cable 1 x English Manual 1 x fixed bracket 1. WORLDWIDE