Keep an eye on your home or business in a more intelligent way using the Reolink RLK8-810B4-A 4K Security Camera Kit. Have all-day videos and only be alerted when there is person or vehicle. 30m night vision 87° viewing angle 18 IR LEDs Person/vehicle detection Audio recording 2TB HDD Built-in Power over Ethernet IP66 rated waterproof Includes 8-channel NVR Person or vehicle detection The 4 PoE IP cameras can identify people and vehicles in terms of their shapes, which minimises unwanted alerts such as animals or shadows. The cameras can also specify the type of detection when sending alerts to you. Know what happened by just glancing at the lock screen. See finest details in 4K Each camera in this kit captures videos of 3840×2160 resolution, which is 4 times the clarity of 1080p camera. You can see crucial details clearly, like faces, logos and plate numbers. With the built-in microphone, cameras can also pick up ambient sound for an extra layer of security. Keep guard at night With 18 infrared LEDs in each cam, this system captures videos clearly in the dark within the range of up to 30m, protecting your home and business with 24-hour vigilance. Easy setup with PoE technology This 4K security camera system features PoE (Power over Ethernet) tech, with only one cable connecting each IP camera to the NVR for both power supply and video signal transmission. A real plug N play security system! Unfailing 24/7 recording With the 2TB HDD and the storage capacity of up to 12TB, the PoE video surveillance kit supports all cameras to record continuously at the same time. You will have all-day video without missing a beat. Ready for anywhere, inside and outside Feel free to put these 4K Ultra HD smart PoE cameras anywhere, outdoors or indoors. With IP66 waterproof rating, these cameras will never shrink back in front of the elements, like freezing rain, heavy snow, extreme cold and heat.