OBD II Mode Display: vehicle speed, rotate speed, water temperature, voltage, driving distance, driving time, consumption, local time, oil temperature, turbine pressure, 100 km acceleration test. Alarm: overspeed alarm, rotate speed alarm, fatigue driving alert, high water temperature alarm, low voltage alarm, engine fault alarm. GPS Mode Display: speed, voltage, mileage, driving time, local time, altitude, driving direction, number of satellites, acceleration test, compass. The Head up Display avoids the danger of the driver looking down at the dashboard, which ensures the driver's safety and helps the driver stay in top condition. OBD+GPS Smart Gauge with Adjustable bracket. 2 installation methods: put on dashboard/stick to windshield. Exquisite design: High-definition display lens, not affected by external light. Item type: Car Head up Display Note: OBD II mode cannot be used for vehicles and needs to be switched to GPS mode. Note: Installation guide not included, Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Color: Black Material: plastic Package Contents: 1set x Car HUD head-up display Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.