Keep your home secure with the Reolink 8-Channel NVR Security System. This setup includes four cameras that capture crystal-clear 4K 8MP footage even at night. Smart detection technology can tell the difference between people vehicles and pets so you'll only get the alerts that matter. The built-in microphone lets you communicate with visitors or warn off intruders. And with the included 2TB hard drive you'll have plenty of space to store all that footage. The Reolink PS4KD01-8 system is backed by a 2-year warranty for extra peace of mind.