Dual OBD+GPS System: This head-up display (HUD) features a dual OBD/GPS system that simultaneously displays OBD and GPS data. It reads data from the vehicle's ECU and allows seamless switching between the two display interfaces. Compatible with most vehicle models manufactured after 2012. OBD2 Mode: Speed, engine RPM, coolant temperature, voltage, fuel consumption, oil temperature, clock, mileage, travel time, turbo pressure, acceleration test, brake test, overspeed alarm, engine fault alarm, fault code clearing, coolant temperature alarm, speed alarm, voltage alarm, odometer switching, fatigue driving warning, automatic/manual brightness adjustment. GPS Mode: Speed, clock, driving time, distance traveled, number of satellites, altitude, compass. Easy Installation: Plug and play; the GPS speedometer is easy to use. Two installation methods: A-pillar mounting and center console mounting. This is the first product on the market that can be installed on the A-pillar trim panel. Package Contents: 1 Car HUD display, 1 OBD2 connection cable, 1 Velcro connection cable, 1 user manual