Defiance Technology is a vision technology company that has not been established for a long time but has developed rapidly. Moreover, the nuclear R&D teams of this company are all from high flyers, the top universities at home and abroad, and their Fa c e ++ technology can guarantee the accuracy below a few parts per 100,000 and the pass rate above 9.5%. In fact, there are all these East-West digital networks. Our company's exam attendance and door ban use their skills, and the recognition speed is really fast, and there is almost no need to stop at the door. There is no misunderstanding for the time being, just don't cover your face with east and west, such as masks and sunglasses.