Description: It has conspicuous ambient light that can be changed by RPM or speed. With intelligent photosensitive design, there is visible in the daylight and not dazzling at night. With display of speed, direction of travel and number of satellites, speeding alarm and fatigue driving alert function, compass function, etc., this head-up display features a multi-functional tool. It is made of high-quality ABS and electronic component materials, which is durable. The folding length of the meter is 9.5 cm, the width is 6.2 cm, the height is 2.7 cm. The unfolded length 9.5 cm, the width is 6.2 cm, the height is 4.9 cm. It is applicable to all car models. Item Name: Head Up Display Material: ABS,Electronic Component Screen Size: 3 Inch Standby Current: <3MA Alarm Sound Level: ≥30dB Reflective Screen Transmittance: 96 Percent Working Voltage: 5V Display Method: Virtual Image Reflection Working Environment: -40 Degrees Celsius to 80 Degrees Celsius Features: Durable, Stable, Multiple Functions Size Details: Folding Size: 9.5cm x 6.2cm x 2.7cm/3.74" x 2.44" x 1.06" (Approx.) Unfolded Size: 9.5cm x 6.2cm x 4.9cm/3.74" x 2.44" x 1.93" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Head Up Display 1 x USB Cable 1 x Antislip Pad 1 x User Manual