Key Features. 4K Ultra HD four times clearer than 1080p with powerful digital zoom True Detect heat & motion-based PIR detection Two-way Talk means that you can listen greet guests or warn intruders remotely Features Face recognition as well as Person & Vehicle Detection Night vision up to 45m in total darkness & the ability to see colour video at night 4 sensor spotlight cameras can be set to turn the lights & siren on & also trigger recording Pre Installed 2TB HDD free local recording for up to 300 days+ with no fees Weatherproof design means you can mount Cameras outside 1 Year Warranty Protect your loved ones & property with this expandable multi-camera wired surveillance system with everything you need to do-it-yourself or have it professionally installed Capture Everything in Ultra HD See faces license plates packages and; capture audio with state-of-the-art 4K Ultra HD that’s four times clearer than 1080p with powerful digital zoom – ensuring you won’t miss a thing Protection 24/7 Know what’s happening at any hour with powerful night vision up to 150ft/45m in total darkness (200ft/60m with ambient light) and; the ability to see color video at night Know Who’s There Face recognition lets you know the people you care about are safe. Other smart analytics include Person and; Vehicle Detection Prevent Unwanted Activity The 4 sensor spotlight cameras can be set to turn the lights and; siren on and; trigger recording when they detect heat and; motion Heat Sensing Swann’s True Detect™ heat and; motion-based PIR detection reliably captures and; records activity with fewer false triggers and; reliable push notifications Two-Way Talk This features means that you can listen to activity greet guests or warn intruders remotely using the microphone and; speaker built in to each camera Set & Forget Enjoy free local recording for up to 300 days+ onto the massive 2TB hard drive with no fees ever. Also backup footage to your Dropbox account Essential info. Resolution 4K Ultra HDHard Drive 2TBWeatherproof IP66 rated can be used Indoor or Outdoor Number of Channels 8PIR Sensor Range Up to 10m Night Vision Distance Up to 45m (total darkness) or up to 60m (with ambient light) Audio Range 5m Computer Opersting System Windows Mac OSHandheld Device Supported i OS Android 4G/5G Smartphones & Tablets Smartphone app Swann Security App Dimensions 235mm x 310mm x 53mm. What's in the Box. NVR-8780 8 Channel NVR with 2TB Hard Drive NHD-887MSFB 4K Bullet Spotlight IP Security Cameras x 4 Cat 5e Ethernet Cable x 5 (60ft/18m x 4 and; 3ft/1m x 1)HDMI Cable Power Adapter Mouse Mounting Screws and; Plugs Quick Start Guide Theft Deterrent Stickers..