3.97-inch touch screen, 2 Mega pixel wide-angle lens ? 2 MP wide-ange dual-lens ? Face anti-spoofing ? Face recognition distance: 0.3 m to 1.5 m ? Deep learning algorithm ? 300 face capacity, 1,500 card capacity (when connecting external card reader); 150,000 event capacity, and up to 20,000 ? Face recognition duration ? 0.2 s/User; face recognition accuracy rate ? 99% ? Capture linkage and captured pictures storage ? Transmits card and user data from or to the client software via TCP/IP protocol and saves the data on the client software ? Imports pictures from the USB flash drive to the device or export pictures, events, from the device to the USB flash drive ? Stand-alone operation ? Manage, search and set device data after logging in the device locally ? Connects to one external card reader via RS-485 protocol ? Connects to secure door control unit via RS-485 protocol to avoid the door opening when the terminal is destroyed ? Supports 6 attendance status, including check in, check out, break in, break out, overtime in, overtime out