国产三级片视频在线有码_日韩福利视频一区二区_国产高清在线观看视频一区二区_国产麻豆精品高清在线搔放_成年拍拍拍免费网址_人与动人物A级毛片免费看_惠民福利亚洲精品在线免费视频_久久av日韩午夜福利片_欧美性猛交ⅩXXX乱大_国产亚洲一级黄色片

In car electronic products, vehicle DVD navigation accounts for an increasing proportion. Nearly 40% of new car owners have the demand for vehicle DVD navigation. Therefore, there are many DVD navigation products produced and OEM, and the quality difference of the products is beyond your imagination.

Four steps are necessary to select car navigation:

First step

Its hardware facilities and hardware can determine the soul of car navigation, its positioning system, whether it has a very excellent GPS chip, and the chip determines its value. If the chip is not very good, the value of car navigation will be very ordinary

Step 2

Function. The function of car navigation is very perfect. There should be adjacent restaurants, banks, etc. The diversification of car navigation has been able to touch the basic requirements of office and entertainment, and its functions are more humanized.

Step 3

The appearance of the product. There are many kinds of car navigation in the market. Some cars are original, and many cars do not have original car navigation. They will choose to install a mobile navigation to assist their driving path.

The appearance has a suction cup at the bottom, which can be sucked onto the glass, and then the support can perfectly drag the navigator. Can get the glass in front of the driver, which is convenient for the driver to operate and watch.

Step 4

Branding, mastering the chip of car navigation and the update degree of map are quite comparable.

Distinguish true from false

First, consumers must carefully check whether the manufacturer of navigation electronic map has obtained the production qualification approved by the State Bureau of Surveying and mapping. 12 furniture factories across the country are equipped with this qualification. These manufacturers can inquire from the website of the State Bureau of Surveying and mapping.

Second, consumers must check whether the navigation electronic map indicates the map review number issued by the State Bureau of Surveying and mapping. The drawing review number of genuine navigation electronic map is indicated by GS (200) in the product copyright information ×）×× The third is that the genuine navigation electronic map can be promoted on the websites of their respective manufacturers, while the pirated navigation electronic map cannot. The activation code required for promotion is marked in the genuine navigation electronic map. The fourth is that consumers can preliminarily judge the authenticity of the navigation electronic map from the price. The price of the genuine navigation electronic map is 2000-3000 yuan, while the pirated navigation electronic map is only 500-600 yuan.

Article source: Jiangmen vehicle navigator http://ti-e.com.cn