I want to buy a car gps for my car, so i go to many markets, then find the gps price is lower than every before. i really want to buy, but i don't know the quality, and there are some questions: How to select a car gps system? the functions of these different brand are same? the most important thing is the gps can choose the route and road?

If you only take one or two person in your car, you can choose one car dvd which has retractable screen, this car dvd system can not only to be watched clearly but also give more location inside of car. with it, the inside of car like a cinema, we can enjoy ourselves with this envoriment. this model can develop into: headrest dvd player、in dash car dvd and normal car dvd player, we can choose it by ourselves.