Forced mask-wearing alert: If the recognizing face does not wear a mask, the device will prompt a voice reminder. At the same time, the authentication or attendance will be failed Face mask-wearing alert: If the recognizing face does not wear a mask, the device will prompt a voice reminder. At the same time, the authentication or attendance is valid 7-inch LCD touch screen, 2 Megapixel wide-angle lens, built-in Mifare card reading module Face recognition distance (without face mask): 0.3 m to 3 m, Duration ＜ 0.2 s/User, Accuracy rate ≥ 99% Max. 50,000 faces, Max. 50,000 cards Two-way audio with client software, indoor station, and main station Supports TCP/IP, Wi-Fi Configuration via the web client Supports ISAPI and ISUP5.0 protocol IP65