Main Features: 1) Beautiful and compact appearance, easy to install 2) Human body infrared sensor fill light camera 3) Wide dynamic camera, anti-backlight 4) The recognition accuracy is high and the speed is fast. 5) Beautiful interface, simple operation, fast, easy to use, and good back-end management function segment Dimension 218*120*25mm OS Android 8.1 Memory 2GB RAM and 8GB ROM Screen 7 inch Face Capacity 1,0000 standard Face Verification Single, and Multi face Detecting Distance 0-4 meters, adjustable Application: Suitable for scenic spot,office,hotel,school,shopping mall,community or any other places require auto face recognition.