Specification Brand : Night Owl Label : Night Owl Manufacturer : Night Owl Model : BTWN81-F4-8L PackageDimensions_Weight : 13.45922109510 PackageDimensions : L:15.5099999841798 X W:11.9699999877906 X H:10.3899999894022 PartNumber : BTWN81-F4-8L ProductGroup : Photography ProductTypeName : SURVEILLANCE_RECORDER_SYSTEM Publisher : Night Owl SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/515KE9+UolL._SL75_.jpg SmallImage_Width : 75 Studio : Night Owl Title : Night Owl 10 Channel Bluetooth Video Home Security Camera System with (8) Wi-Fi IP 2K HD Indoor/Outdoor Spotlight Cameras with 2-Way Audio and 1TB Hard Drive (Expandable up to 10 Cameras) Weight : 13.5 WeightUnit : pounds