4K Ultra HD 8-Channel Digital Video Recorder with Smart Motion Detection and Smart Home Voice ControlD861A82 The 8-channel D861 Series 4K Ultra HD Digital Video Recorder (DVR) is the perfect cornerstone for any house and small business security camera system. Along with sharp 4K recording capabilities and active deterrence security camera support, this DVR features smart motion detection that limits notifications to only people or vehicles. It also includes a large 2TB security grade hard drive that keeps your data private and secure with no monthly storage fees. Easily paired with our Lorex Home App for quick remote viewing and other smart home hubs for additional voice-control options, this DVR is built to not only meet, but to exceed, your everyday demands of security monitoring. Person and vehicle smart motion detection Your cameras come with smart person and vehicle detection on all channels that helps identify more important objects that enter the camera's field of view. Thanks to this innovative feature, you will only get a push notification and image screenshot to your Lorex Home app whenever a person or vehicle is detected on your property. This effectively reduces the number of unwanted false alerts caused by moving branches or animals. All recorded motion alerts can easily be reviewed by using the Smart Search function in the Lorex Home mobile app. Panic button This DVR brings your security camera system to the next level with an easy-to-use panic button located on the front of the recorder. By pressing and holding this button you can activate all lights and sirens on your compatible Active Deterrence cameras at one time to deter potential intruders.