Secure your home with Reolink's 4-camera security system. You'll get crystal-clear 4K footage day and night with smart detection that can tell the difference between people vehicles and pets. The cameras feature two-way audio so you can communicate with visitors or warn off intruders. It's all easily managed through the included 8-channel NVR. The Reolink PS4KB01-8 system comes with a 2-year warranty for extra peace of mind.