Doing every time do the train, security, and security personnel will use scanner, scan your identity, and train tickets, they will through the scanner to verify your identity information, and was very precise, and the scanner use is particularly convenient, also compare the magic, and they will see you in the process of scanning the himself, see and id information is not same, they also work well is also very strictly, and is also particularly good, and the quality of the scanner is also quite good of, behold, design also is very beautiful, do a detailed, and the speed of the scanner is faster.