Key Features. 4K Ultra HD Playback resolution Massive 2TB Hard Drive to store all your recordings Works with 5MP 4K Swann Cameras 24/7 Protection via the Smart Phone App for i OS and; Android Works with Alexa and; Google Assistant 1 Year Warranty. True Detect Thermal Sensing Motion Detection Add compatible cameras to get True Detect heat and; motion sensing that triggers auto recording and; push notifications when they sense heat like from people & cars. See Compatible Products section further below. Accurate Security Push Notifications You'll get push notifications when cameras detect movement from warm objects such as people & cars allowing you to act immediately & potentially prevent any costly security incident. Speak and; You Can 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 such as Echo Spot Echo Show or 4K Fire TV. Learn More ); Quick Shot Cloud saves snapshots to your Dropbox account Set up the system to upload still images to your Dropbox account in the cloud. So even if your security system gets stolen you'll have image evidence stored off-site. View your home on your phone See the cameras live & play back recordings on your smartphone or tablet no matter where you are in the world with the Swann Security app. Massive surveillance grade hard drive The massive 2TB HDD is designed especially for continuous surveillance recording. Store months of recordings & easily transfer videos to a USB (Universal Serial Bus) stick or download via network with no ongoing fees ever. What's In the Box. NVR-8580 8 Channel NVR with 2TB Hard Drive Cat 5e Ethernet Cable x 1 (1m)HDMI Cable Power Adapter Mouse Quick Start Guide Theft Deterrent Stickers..