1. Support wide voltage DC5-24V power supply two-stage automatic overvoltage protection overvoltage protection point 27V; 2. Support WiFi transmission protocols such as 802.11AC 802.11A and 802.11N; 3. Wireless transmission rate: 900Mbps; 4. Transmit power: 19dBm/23dBm optional; 5. Peer-to-peer accessibility maximum transmission distance: 500 meters; 6. Two external 4dBi antennas can be extended by extension cable (optional); 7. Two 10/100s Mbps adaptive Ethernet ports with options for an expandable Ethernet port (one expansion); 8. WiFi hotspot memory maximum memory 10 hotspots; 9. Support simultaneous connection of more than 20 WiFi terminal devices; 10. Use VDNS virtual domain name configuration technology to reduce user configuration difficulties; 11. Support manual shutdown of SSID broadcast and manual shutdown of WiFi hardware; 12. Support SSA signal strength detection and reporting function to realize WiFi mobile positioning; 13. Support configuration parameter import and e