?12 Month Warranty & Friendly Customer Support?We provide a full warranty for 12 months of this NVR. If you have any question, don't hesitate to get in touch with us, we will try our best to satisfy you. ?Human & Vehicle Detection? To differentiate between humans, vehicles, and non-important objects in the scene, you will have a colored box surrounding humans and vehicles. A green box will outline pedestrians with intelligent mark enabled in the camera, blue box for motor vehicles. With Human and Vehicle Detection feature you could be alerted any time a person or vehicle entered your property( Important Notes: Only Hiseeu PoE camera can support these functions). ?Instant Motion Alerts on Customized area?The user can randomly customize the detection area, and once the system detect some suspicious moving objects, smart alerts on App, Email, DVR will be triggered instantly through APP or Email. ?Advanced H.265+ Video Compression?Advanced H.265+ technology can efficiently save hard drive storage up to 50%, for delivering sharper and smoother video streaming (No Hard Drive Included). ?No Hard Disk Drive included?This NVR BOX does not come with a Hard Disk Drive, a NVR can’t record or playback videos without a HDD (Hard Disk Drive), If you need extra hard drive( you can search B07DW4YGYM on ). ?Easy Remote Access & NO Monthly fee? Free APP "Guard Viewer" can be downloaded from App Store or Google Play. At anytime anywhere, we can view the live video remotely via APP on mobile phones, or via software "Guard Station" on PC/Mac/Tablet, HDD Storage up to 12 TB. ?4K 16Channel PoE / IP NVR w/wide compatibility? This Power Over Ethernet NVR is compatible with PoE Camera, IP/Wireless Camera, supporting resolution up to 4K/2K/8MP/5MP/3MP/1080P.