Specification: Origin: Mainland China Wire or Wireless: Wired Size Name: 60 x 60mm/2.36 x 2.36inch Voltage: 5V Adjustable display colour, 1 machine 7 colours (green/yellow green/light blue/cyan/blue/red/purple) Frequently Asked Questions 1. The screen does not show anything and does not power on. Please check whether the USB cable is damaged, or replace the USB cable to test (please note: prohibit the use of higher than 5V voltage power supply). 2. No speed display After power on, the satellite icon flashing means it is in the state of searching, please move the car to the open road to receive signals, after the satellite icon stops flashing and the number of satellites is displayed, the machine can be used normally. 3. The speed is still displayed after the car stops If you drive to underground car parks, tunnels, flyovers and other places where the signal is unstable, the data displayed by the product may have a certain deviation, and it can be restored to normal by driving the car to an open road. 4. Inaccurate speed a. Check whether the unit is correct, kilometres Km / H or miles MPH (speed unit switching, please refer to the above figure of the setting mode) b. You can fine-tune the speed, such as the instrument panel shows 100Km/H, the machine shows 105Km/H, you can adjust the parameter value to 102. 5. Time calibration a. Machine defaults to Beijing time +8:00 b. If you need to adjust the time for other time zones, please enter the setup menu item 6, dial key right to adjust, adjust the amplitude of 30 minutes / times (such as: a region faster than Beijing time 1 hour, dial key dial twice can be). Note: Satellite icon flashing means no satellite search, the time display for the time zone, please adjust to their own country's time zone (such as: Korea +9:00) satellite icon stops blinking, the direct display of the time calibration can be. 6. Wrong direction of travel When there is no speed, the satellite can not identify the driving direction of the vehicle, and it can be displayed normally only after the driving speed exceeds 5Km/H. Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Package Included: 1 x Host 1 x USB Cable 1 x Double Sided Adhesive 1 x Suction Cup Stand 1 x Manual