Output Frequency:car digital speedometer Rated Power:G15 GPS HUD Size Name:17.8*4.4*2.8cm Wire or Wireless:Wired Origin:Mainland China GPS Car Speed Display Smart Screen G15 Gps Speedometer On-board Computer Hud OverSpeed Alarm Compass Electronics Accessories Feature: HUD Drive: G15 head-up display for any car 1Head-up display (HUD) for everyday commute to stay focused and connected while driving 2Installed on the dashboard at one time, the cables are concealed, and the appearance is the same as the original car, The machine does not damage the car, and use safe. Specification: 1. Streamlined body design-Band new design style, exquisite appearance; 2. Plug and play- Simple installation, hidden wiring; 3. High temperature resistant material- It can also be used normally in high temperature in summer; 4. Automatic brightness adjustment- Built-in photosensitive element, automatic dimming; 5. Start and stop with the car- No need to manually open and close with the car; 6. High precision GPS chip- The refresh rate is 10HZ, the display is accurate; 7. KMH/MPH- Kilometer miles can be switched; 8. With ambient light- The novel ambient light design adds a lot of color to the car; 9. 24 hours delivery- Fast shipping, less waiting; 10. After-sales service- Once you receive your order, please test it outdoors with a good signal. If it cannot be used normally, please write to us, we will replace a new device or refund you directly, no need to return; 11.3 month Warranty- Please contact us, send the order code and the problem that arises; Multiple modes & one-click switching : 1.Speed 2.Speed + Compass 3.Time 4.Speed/TimeWhen the vehicle speed is 0, the display time will be automatically switched 5.Speed/Time +Compass 6.Number of satellites + Compass 7.Driving time + Compass 8.Driving distance+Compass Plug and Play : 1.insert the USB cable into the cigarette lighter port. 2.Insert the wires into the A-pillar seal. 3.Connect one end of the USB connector to the HUD and place the HUD in a suitable location.