RLC-823A is smart enough to distinguish person and vehicle from other objects. When RLC-823A detects someone suspicious, its spotlights and siren will be triggered or manually activated to warn off the unwanted guest. With built-in mic & speaker, you are free to listen and talk back to whoever the camera catches in real time. With 360° pan & 90° tilt, RLC-823A can monitor a surprisingly large area with a single security camera. It can also keep track of the moving person/vehicle automatically. RLC-823A with infrared LEDs provides 55 m IR night vision & its spotlights ensure color night vision. With motorized varifocal lens, RLC-823A allows you to view from a wide angle. Its 5X optical zoom enables you to zoom in for astonishing details or zoom out for maximum coverage. Thanks to Power over Ethernet (PoE) technology, this PTZ IP camera can transmit videos and be charged simultaneously via only one network cable. With a few clicks on Reolink App or Client, you can stay tuned with your home or business all the time. This smart IP camera supports 24/7 continuous, motion-triggered, or scheduled recordings.