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This socket is specially designed for the blind and color blindness people. The combination of different bright colors make it possible for blindness people to recognize. With its guide way, push the plug into the guide groove, users can easily connect the socket. The combination way of the socket can also change the socket’s number. In addition, round sticker was added to the back of the socket , stick them on the wall in case of the socket was put in the wrong place, and make it more convenient for blind people users.
Nanjing Tech University