Home security jumps from 5 MP to 4K Ultra HD, which is 1.6x clearer than Super HD and 4x clearer than 1080p HD! With the Reolink 4K UHD Pan-tilt-Zoom PoE Security Camera, details you see around your home or store will be accurately reproduced in live streaming and playback. The RLC-823A also unites security and intelligence. Through person/vehicle detection technology, the camera is smart enough to distinguish persons and vehicles from other objects, greatly reducing false alarms. And when it detects someone suspicious, its spotlights and siren will be triggered or manually activated to warn off the unwanted guest. 2-way audio lets you listen and talk back to whoever the camera catches. With 360° pan and 90° tilt, this dome PoE security camera can monitor a surprisingly large area. It automatically tracks a moving person or vehicle plus it has manual pan and tilt. The PTZ camera also supports 5x optical zoom. Zoom in or out on specific details without reducing the image resolution. Thanks to Power over Ethernet (PoE) technology, this outdoor security camera can transmit video and power over a single network cable. This means you can install this camera quickly and painlessly. The outdoor security camera also supports 24/7 continuous, motion-triggered, and scheduled recording. Videos of all 3 recording types can be saved to a microSD Card, Reolink NVR, or the FTP server (all sold separately). The camera is also compatible with Google Assistant and Alexa for hands-free control.