WYOBD A11 Car HUD Head Up Display OBD2 Notice: 1.Car production year (before 2008 are incompatible with HUD)2.If you are interested in our products, and the model is before 2008, or you don't know whether your car can be used, you can enter the store and contact customer service. The original car is not damaged, the smart is started to stop with the car HUD works: Receive the data from the car and display it on the machine.OVERSPEED ALARM When the vehicle speed exceeds the default value of 150km/h, an alarm will sound. Light SensorAutomatically adapt to the light sensitivity, and the brightness is changed by the environment.1 Photosensitive element: Sensing the intensity of external light, automatically adjust the brightness of the HUD to adapt to the environment 2 Voltage diagram 3 Fatigue driving icon 4 Water temperature icon 5 1 point of engine speed represents 200 rp 6MPH-mile unit, KM/H-kilometer unit 7 Vehicle speed display Water temperature display Voltage display Short press the pulsator key to switch 8 After the buzzer pulsator is dialed down for a long time, the alarm sound is turned off. Press and hold again to turn on the alarm sound.A . Set the dial, you can dial up, dial down, vertical short press and vertical long press to setB . Power switchVertical short press of the trackwheel: Switch display content, switch water temperature, voltage, speed. Dial down: Dial for 5 seconds Dial the dial switch for 5 seconds, the sound icon of the alarm buzzer will be turned off, and then dial it down for 5 seconds, the sound icon will be turned on.Product Accessories1*packing box 1*reflective film 1*instruction 1*non-slip mat 1*OBD cable 1*product About transportation After receiving the