1、4.3inch Hd Touch Screen: Intelligent operating system, simple, intelligent, large capacity, fashionable shape, high definition screen display, sensitive touch response, multi scene application. 2、Support Various Authentication Methods: Including face recognition, Id card, password and a combination of multiple recognition methods. Seamless switching, sensitive response speed. 3、Dynamic Face Recognition: Face recognition distance is 0.5 to 2.5M, capture without delay, photos and videos cannot be verified, to avoid others using photos, videos and other means to muddle through. 4、Automatic Fill Light: Adaptive to various complex light scenes, automatic fill light support infrared fill light, when shooting faces in dark light, the white fill light automatically lights up, face recognition accuracy rate of 99.70%. 5、Widely Used: Suitable for government agencies, intelligent buildings, office buildings, property communities, universities, enterprises and institutions, industrial and mining enterprises and other places.