The Swann 8 Channel 4K Ultra HD DVR Security System is a wired surveillance system with everything you need to do-it-yourself or have it professionally installed. 4K Ultra HD resolution 90° viewing angle True Detect Heat Sensing technology Colour video at night up to 20m Features spotlight and alarm IP66 rated weatherproof design Includes 2TB HDD Works with Google Assistant and Amazon Alexa Put the spotlight on crime Heat and motion turn on the spotlights, enabling colour night vision, so you can identify colours of clothing, cars and more, while acting as a powerful deterrent. Sound an alarm Protect the ones you love with a loud siren that can be triggered automatically when activity occurs. Speak to see Enjoy hands-free security using voice commands. Stream video from your camera via the Google Assistant and Chromecast, Google Home Hub or via Alexa devices with a screen. See colour at night Sensor lights on cameras are bright enough to enable colour video at night up to 20m. See more in 4K Ultra HD Zoom into faces and licenses plates like never before. 4K is 4x the resolution of 1080p Full HD.