This all-in-one 4K Ultra HD network video recorder (NVR) and camera kit is easy to install and will keep your premises secure. Wiring is quick and simple as the video, audio and power are all run through a single network cable for each camera. Each camera contains a super-bright sensor spotlight to view in full colour up to 35m away and a loud siren to deter intruders. True Detect heat and motion-sensing can be set to record only when an actual intruder is detected, so you save space on the HDD and don't have to review several hours of footage when an event occurs. Upload footage from up to 2 cameras and still images from all cameras to your Dropbox account in the cloud. So even if your video recorder gets stolen, you'll have video evidence off-site. The massive 2TB HDD can store months of footage before overwriting older files. Easily transfer videos to a USB stick or download via network with no ongoing fees ever. You can even add up to 4 more cameras 4K Spotlight Cameras Powerful Infrared LEDs Weatherproof Casing on Cameras Infrared Cut Filter Nightvision True Detect Heat and Motion Sensor Speaker and Microphone on each Camera