This Swann Smart Security CCTV System includes an 8-Channel 4K 2TB HDD DVR and 4x PRO 4K Enforcer Cameras. The Swann Enforcer has crime-fighting features other security systems dream about. Heat and motion-based activity triggers red and blue police-style flashing lights, bright spotlights and loud sirens to intimidate intruders and prevent crime from happening. Activity can trigger push notifications to let you know what's happening and recording to ensure you have video evidence when you need it. Imagine being able to see fine details with state-of-the-art 4K Ultra HD video. Imagine the peace of mind you'll have when any detections send push notifications to your smartphone. With the Swann Security app, you can even watch live or playback video on your smartphone from anywhere in the world. In fact, you can view any of the cameras on your smart TV, even go hands-free via the Google Assistant and Chromecast, Google Home Hub, or via Alexa devices. Know what's happening at any hour with powerful infrared colour night vision, along with Swann's True Detect heat & motion detection. The indoor/outdoor weatherproof camera design is built to withstand rain, snow and heat. There's free local recording for up to 180 days+ onto the massive 2TB hard drive with no subscription fees ever and you can upload video to Dropbox. Depth: 230 MM Prevent Crime - Sensor spotlight & flashing lights deter intruders. Colour at Night - Night2Day lets you see amazing colour video at any hour. True Detect - Heat & motion-sensing for more reliable alerts. Free Recording - Retain video onto hard drive & back up to the cloud. 4K Video - Crystal clear video & close-ups. Wired - Set & forget, reliable multi-camera wired connection. Weatherproof - Cameras work in rain & snow, all year round. Smartphone Control - Access anywhere with the Swann Security app. Smart Home Ready - Works with Alexa and Google Assistant. Height: 64 MM Width: 300 MM