... : CRT DetailSpecificationsAccessories(standard)Display Screen4.5inch1, 4.5 inch monitor2, black and white rear view camera 3, Operation manual4, signal cable 20M Extension ... the brightness, contrast3, Button can be used to switch day and night model4, Use keys to switch the signal source, select ... video.5, Wide power voltage :24V±20%6, Use the car aviation first and the correction is safe ...