★4inch
★ Optical zoom: 10X , day vision: 200 meters
★Newwork Protocol: TCP/IP, HTTP, DDNS, DHCP, NTP,FTP, SMTP, RTSP, RTP
★Night vision: can see the face within40m, can see the object within 60m
★Auto IR-cut as per camera's focus
★128 presets, 8 cruise
★Power recovery function, Guard Position
★360°Horizontal free rotation, Vertical rotation 90°
    Horizontal rotation speed: 0.1°-200°/s; Vertical rotation speedl:0.1°-130°/s
★Transparent part is glass, easily cleaning;
★Support ONVIF 2.0, compatible with Hikvision, Dahua etc.NVR