Person/Vehicle Detection: Smart PoE IP cameras can identify people and vehicles minimizing unwanted alerts such as animals or shadows. Cameras can also be configured to specify the type of detection when sending alerts to you. 4K Ultra HD: Each camera in this PoE camera kit captures videos of 3840x2160 resolution. With the built-in microphone, cameras can also pick up ambient sound for an extra layer of security. Plug and Play PoE System: The system includes four 60ft CAT5 network cables, which allows for easy installation and set-up. After connecting the security cameras to the NVR ports, recording and live views can be seen within seconds via an HDMI monitor. 24/7 Recording: This 4K PoE video surveillance kit supports 24/7 continuous recording. The video will be stored in the pre-installed 2TB HDD (up to 12TB). 2 Year Warranty: Users are provided with a lifetime tech support and a 2-year warranty. Simply contact Reolink tech support via e-mails.