Features: Display the driving data such as speed, speed, fuel consumption, water temperature, voltage, etc. on the front windshield to avoid the insecurity caused by the driver looking at the instrument while driving. The driver can read the driving information in real time and keep the HUD in the best condition at any time.This product is a dual system: after power on, choose the language you are familiar with, choose the OBD or GPS system, and automatically enter the last selected system after 5 seconds of no operation.11 large interface functions, you can switch at will.A variety of operating interface modes and colors can be switched freely, bringing you more fun and a sense of technology.SpecificaitonsColor: BlackProduct size: as shownMaterial:ABS+PCWorking voltage: 11V~18Vdc (12Vdc/200mA)Photosensitive components: automatically adjust the brightne with the surrounding environmentLanguage: CN Simplified Chinese / TW Traditional Chinese / EN English, etc. SettingModes: System Sound Settings: ON to turn on the alarm sound / OFF to turn off the alarm soundSpeeding reminder: alarm when the vehicle speed reaches the set default value of 150km/h, the setting range is 5-200km/hEngine temperature alarm: alarm when the water temperature reaches the set default value of 120C, the setting range is 50-200Engine speed alarm: alarm when the speed reaches the default value of 6000r/min, the setting range is 1000-8000Voltage alarm setting: alarm after the voltage is lower than the set default value of 10.5v, the setting range is 10.0-15.0vSpeed error adjustment: adjust the parameter value when there is an error between the speed and the instrument panel (for example, the instrument displays 100 Km/h, the device displays 105 Km/h, and the dial wheel is turned up to adjust the parameter value to 102)Speed zero setting: when the vehicle speed does not return to 0 after the car is turned off (for example, the vehicle speed displays 5Km/h and the device is adjusted to 6Km/h)Voltage error adjustment: when there is an error between the voltage and the instrument panel voltage, fine-tuning can be done (for example, when the device displays 0.2V higher than the instrument voltage, the device is adjusted to 98%)Engine displacement setting: When the fuel consumption error is large, adjust it according to the displacement (for example, if the displacement of the car is 3.6L, adjust the parameter value to 3.6L)Adjustment of fuel consumption data: fine-tuning when there is an error in fuel consumption (for example, when the device shows 0.2L higher than the meter voltage, the device is adjusted to 98%)Backlight brightne setting: Auto auto-sensitivity, 1 is the darkest, 8 is the brightestAmbient light settings: RPM speed control color-changing ambient light SPEED speed control color-changing ambient lightOFFTurn off the mood light BLUE blue mood light RED red mood light PURPLE purple mood lightShutdown delay setting: the default is 10 seconds to shut down, the adjustment range is 5-300 secondsShutdown voltage setting: adjust to 13.2V or 13.6 when it cannot be turned off, and adjust to COM mode for cars that automatically start and stopRestore factory settings: The system is restored to the factory default value After selecting this operation, short pre the M key to confirmCalibration of the incline meter: short pre the or button after the meter is placed: when you hear the beep, the calibration is completeEnter the setting mode: long pre the M key for 2 seconds to enter the setting item, short pre to select the menu, short pre the M key to confirm, after adjustment, long pre the M key for 2 seconds to save and exit Operate: 1. Left ambient light: change with engine speed or vehicle speed (setting items can be selected)2. Power button: long pre for 2 seconds to turn off, long pre again for 2 seconds to turn on3. Left button: short pre to switch the display on the left, enter the setting and then move the option, and short pre the calibration on the display interface of the incline meter4. Right button: switch the display on the right, and move the options after entering the setting5. M key: short pre (pre once) to switch the display mode, enter the setting menu to confirm the optionLong pre (pre and hold for 2 seconds) to enter the setting, after adjustment, pre and hold for 2 seconds to save and exit6. Right ambient light: change with engine speed or vehicle speed (setting items can be selected) Package Included: 1 x Host1 x OBD Cable1 x Bracket1 x Non-slip Pad1 x Manual NOTE: If you dont drive for more than a week, please disconnect the connection. Since the OBD device is a normally charged car battery, the theoretical standby is 1 month. Due to different vehicle conditions, it is recommended to unplug the OBD device when the car is not used for a long time. Do drop