Many of them, like large shopping malls or other stores, will install several adapters for later use, and think of the authority. Also considerate, when selecting adapter, it will also choose the appropriate adapter, which feels good, and has a sense of design. To mall when choosing adapter, also note that the size, and quality issues, do your best, is really very good, and now the equipment is also followed in the footsteps of science, in the process of using also will be more convenient, also will be more and more high quality requirements, with the market will be more and more, the adapter sales will be increased.