Specifications: It supports multiple display modes, one-key switching of the main interface. 55 x 42mm larger screen for easy reading. Multifunctional detection and diagnosis, makes you has better understanding of your car. Item Name: Car Digital Hud Display Material: ABS, PC Working Voltage: 9V - 16Vdc (400mA) Alarm Sound Level: ≥30dB(A) Relative Humidity: 10% - 95% Major Functions: Current Vehicle Speed, Engine Speed, Water Tank Temperature, Battery Voltage, Various Fuel Consumption, Driving Time, Driving Distance, Oil Temperature, Air-Fuel Ratio, Intake Pressure, Turbo Pressure, Data Flow Throughout The Vehicle. Features: Universal, Multifunctional, Large Screen Size: 73mm x 68mm x 46mm/2.87" x 2.68" x 1.81" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Host 1 x OBD Cable 1 x Anti-slip Mat 1 x User Manual