Thanks to 4K resolution, four times higher than 1080P HD, you can enjoy clear and flawless images and videos. Thanks to the motorised lens with variable focus, the PoE camera supports 3X optical zoom. You can see distant objects clearly when zoomed in, or have an overview when zoomed out, without degrading the image quality. RLC-833A is connectable with Reolink Floodlight. When it detects movement at night, Reolink Floodlight automatically activates and illuminates large surveillance areas for clear night vision. Smart detection, instant alerts Thanks to shape analysis technology, RLC-833A can accurately detect and alert people, vehicles and pets in real time. In the process, false alarms are reduced. So you focus only on what's important. Two-way conversation in real time The built-in microphone and speaker let you listen and talk to the person next to the camera in real time, no matter where you are. Flexible night vision modes There are three night vision modes in that the camera turns off the spotlight, turns it on on a schedule or turns it on automatically. In Smart mode, the spotlight turns on automatically when motion is detected. Depending on your needs, you can design your night world. Time-lapse Time-lapse videos capture the movement of events over a long period of time. Capture events like sunrise and flowers blooming with RLC-833A and share them with family and friends. Flexible storage options RLC-833A supports 24/7 continuous, motion-triggered or scheduled recording. It can be stored on microSD card, Reolink NVR or FTP server. Your choice, your individual security.