HUD Key Features and Features: 1. Apply to all vehicles, easy installation, plug and use. High quality display with 3.5 inch screen 3. Various color design make it easy to read a wide variety of screen. 4. Nano technology has no double reflection, image is clear. 5. Rich function: Car speed, compass, car speed alarm, free switching between kilometers and miles. 6. Auto power on/off: HUD start and stop the vehicle, effectively protect the vehicle battery; also hold the manual switch mode for easy HUD control. 7. Automatic and manual adjustment brightness, no glare when driving.

WAVE button function: 1. Long press the button vertically for 5 seconds: enter the setting menu(menu 1-6), after adjustment is finished, press and hold the button vertically for 5 seconds to finish. 2. Press vertically short: enter menu settings and increase menu value 3. Short press the apple: enter the menu setting and increase the parameter value. 4. Short press down pull: enter menu setting and lower the parameter value. 5. Long press down pull: open or close the alarm sound. Reset Setting: Long press 5 seconds vertically to enter menu settings, short press to enter Menu 6, short press Parameter 1 to hold 5 seconds to save and finish Open or close buzzer: Long press the WAVE button for 5 seconds to close the buzzer.Then open the buzzer for 5 seconds. HUD Setting: Use and Install Reflective Film: Note: Due to the double layer of windshield structure, HUD forms a double reflection on the windshield.Due to the different windshield, the double reflections are different.If you can see the information clearly, you dont need to use a reflective film.If you have a double image, please use the reflective film.

What is a head up display? Head-up Display, HUD is a device that allows you to drive without moving your eyes outside of the direction of the progress while driving. Although it has been introduced quite previously in military fighter planes, it is also possible to install it on a general domestic vehicle.

HUD Setting: Use and Install Reflective Film: Note: Due to the double layer of windshield structure, HUD forms a double reflection on the windshield.Due to the different windshield, the double reflections are different.If you can see the information clearly, you dont need to use a reflective film.If you have a double image, please use the reflective film.