There are smart cameras and then there are SMARTER CAMERAS - this is certainly the latter. A new generation of outdoor camera that has every technology available loaded in to is incredibly well designed & relatively compact housing. Let’s start with the big difference: Auto Tracking - the wide angle lens will capture activity over a large area in the same way that a standard bullet camera does however one that subject starts to move, the camera will continue to follow - this 355 degree Pan and 90 degree Tilt gives complete coverage of an area that would normally require multiple cameras! And of course all the other market leading technology that IMOU excel at are present including Full Colour Night Vision supported by 2 bright LED Spotlights build in to the camera which offer a practical lighting solution as well as being an active deterrent. 2 Way Audio and 110Db Siren to further deter or just communicate remotely from anywhere in the world. Store you video locally using SD card or remotely on the competitively priced Cloud service. And another very unique feature of IMOU outdoor cameras is they even work without Wi-Fi using a local hotspot to connect to the APP; No Network = No Problem. Features: Super HD 2K - 4MP AI Human Detection Auto Tracking Pan & Tilt Full Colour Nightvision Built In Spotlights 110Db Siren 2 Way Audio Cloud or Local SD Card Recording Specifications: Dimensions: H:25.8 x W:12.2 x D:13.8 cm Colour: White Guarantee:2Year Model Number: IPC-S42FP-D