... voltage:24V(20~26V) Lcd Screen: CRT DetailSpecificationsAccessories(standard)Display Screen4.5inch1, 4.5 inch monitor2, black and white rear view camera 3 ... the brightness, contrast3, Button can be used to switch day and night model4, Use keys to switch the signal source, select ... video or surveillance video.5, Wide power voltage :24V±20%6, Use the car aviation first and the correction is safe ...