Clearly See Distant Details in 4K Ultra HD with 16X Optical Zoom: The varifocal lens allows you to 16X zoom in on the distant object without compromising the 8MP resolution. See the face or license plate clearly even if they are far away. | Cover Every Corner with 360° Pan, 90° Tilt, and Auto Tracking: This PTZ camera sweeps off blind spots with 360° full coverage. Pan-tilt speeds are adjustable (pan: 1.4°-281°/s; tilt: 1.4°-56°/s). Also, it'll automatically follow the target to keep it in the frame. | See Your Property with Long-Distance Night Vision & Remote Access: The camera's infrared night vision allows you to see up to 260ft even at night. You can view the camera live and play back videos anytime anywhere via Reolink App/Client. | Receive More Accurate Alerts and Take Quick Responses: The camera can distinguish people, vehicles, and pets from other objects to reduce unwanted alerts. With two-way audio, you can hear and talk in real-time to deter intruders when you receive alerts. | Convenient One-Cable Setup with Power over Ethernet: Plug the RLC-823A 16X into an IEEE802.3at PoE NVR/switch/injector to enjoy stable transmission of power, data, and 4K UHD videos via one Ethernet cable. By connecting it to the Reolink NVR, you will get massive storage for 24/7 recording. (The PoE NVR/switch/injector is not included. The Ethernet cable and a DC power adapter are included.)