Product Description： -- Easily toggle between vehicle speed, water temperature, voltage, and driving mileage with a single control. -- Easy to install in your car in just a few steps. -- Reduces glare for clear visibility in both bright sunlight and low-light conditions. -- Automatically powers on/off with your car and adjusts brightness based on ambient light. Specifications:Material: PC+ABS.Appearance size: 86x37x16mm.Color: black.Weight: 130g.Power supply: OBD interface power supply. Package includes:1Pcs * Car Hud Display. Note:1.Please Allow Small Differences Due to Manual Measurement.2.Due to the Different Display and Different Light, The Picture May Not Show the Actual Color of the Item. Thanks for Your Understanding.