Swann 8 channel 720p HD DVR with 4x Swann 720p HD black bullet cameras. A further 4 cameras can be added to acheive a 4 camera system, that will record and send alerts to your smart device when set up via the easy to use rules engine, and by downloading the free Swann Link App. Easy to install with fittings and full instructions. Day & night vision. Hd image resolution. Cameras can be placed indoor or outdoor. Cameras can be locked into the reuiqred angle by using the allen key provided. DIY easy installation. Free swann lifetime support. Free swann link app. CCD CCTV camera with . 60 hours video recording or up to . 59 viewing angle. 20m viewing range. 8 video channels. 20m night vision viewing range. Plugs directly into TV_monitor. Allows you to view and record. (not included). Size H30, W38, D20cm. Weight 4.2g.