It adopts image and voice to assist the driver to parking easily. The principal core is controlled by Intelligent microcomputer with following advantages: 1. Adopts multiple guards against reports mistakenly the technology 2. Wide-angIe pokes head In the ultrasonic wave scanning 3. Surpass limpid LCD liquid crystal display 4. Numeral wireless Image transmission technology 5. Convenient Installation In vehicle When vehicle is In its reverse gear mode, system will start operating conditons automatically. Simultaneously, the rear view mirror shows the rear view mirror shows the image and distance momentarily as well as accompany with real phonetic reminder. When it is unnecessary, you may shut it off and only use LCD monitor to show the rear view distance. New rear view monitor system that applied to buses and public transportation buses broaden drivei's visioin.