Additional Details ------------------------------ Product description: Protect your property, day and night, with this Nocturnal NC4K8F-3232BB security camera system from Lorex. This system includes 4K IP security cameras, a powerful thirty-two channel Network Video Recorder (NVR), and a sixteen channel PoE switch. Along with 4K recording resolution, Color Night Vision, and smart motion detection, these security cameras include listen-in audio which adds a whole new dimension to your overall security monitoring. These features, as well as open channels on the NVR, make this system an incredibly versatile and expandable security solution perfect for a large home, small business, office, or commercial facility.