After-market car DVD player is the first essential equipment for us to update a car audio system. It helps people kill time in the travel and amaze them with great entertainment. Dual Audio Movies 720p ​With the development of more and more cutting edge technologies applied for Car DVD, there is DVD with built-in GPS which has Dual Zone function as well. There are 2 different meanings for Dual Zone function in different type of units. But the same point is it can handle double tasks at the same time!

For pure Car DVD player, Dual zone refers that driver can enjoy Radio with car speakers in front, while passengers can watch DVD movies through rear AV output of unit. So in this case, you can install 2 headrest monitors in the back seats.

For safety reason, driver can listen to the music without disturbing of video from the rear, he can mostly concentrate on driving. While other passengers can still enjoy the movies in the back. All of them can have full entertainment and the travel will no longer boring, and it would be much more safe of separating radio and video in different parts of the car.

For Car DVD with built-in GPS, the dual zone function have other meanings. For one thing, it can do the same function that pure DVD does. For another, which is much more important for driver, is you can listen to the music while using GPS navigation at the same time.

If you are playing music and hit the "Navi" button, it will switch to GPS while still playing your music. While driving to wherever the destination is, the music will cut out for a second while your GPS instruction plays (ie. "Turn left in 100 feet"), then it will go back to your music.

So now you know how amazing and how important the Dual Zone Function for your Car DVD player. So it's better that you should take this factor into account before buying, it will bring you tons of benefits and fun