Review on 🚗 Hud Display: iKiKin Car HUD Head Up Display 3.5inch Digital GPS Speedometer for All Cars and Trucks by Michael Gilmartin

The device displays miles per hour as advertised, but every time the device is turned on it defaults back to km/h. This means that you have to go through the process of changing the metric type every time you use it, and the process is not intuitive. If only the measurement type remained after changing the unit of measurement would be great, unfortunately I threw away what I paid for this device because I can't integrate it into the dashboard.