Specification Binding : Electronics Brand : Night Owl Optics HardDiskSize : 1.00 Label : Night Owl Manufacturer : Night Owl Model : DVR-BTD2-81 NumberOfItems : 1 PackageDimensions_Weight : 3.6596735492 PackageDimensions : L:11.649999988117 X W:10.8299999889534 X H:3.3899999965422 PartNumber : DVR-BTD2-81 ProductGroup : Photography ProductTypeName : DIGITAL_VIDEO_RECORDER Publisher : Night Owl SmallImage_Height : 70 SmallImage_URL : https://m.media-amazon.com/images/I/31unbHK4GQL._SL75_.jpg SmallImage_Width : 75 Studio : Night Owl Title : Night Owl BTD2 Series 8 Channel 1080P DVR with Pre Installed 1TB Hard Drive Connect up to 8 Compatible BNC Cameras as Well as 4 Compatible Wireless Cameras Weight : 3.7 WeightUnit : pounds