Specification Brand : Night Owl Label : Night Owl Manufacturer : Night Owl Model : BTWN81-F4-6L PackageDimensions_Weight : 9.98 PackageDimensions : L:11.85 X W:10.87 X H:9.21 PartNumber : BTWN81-F4-6L ProductGroup : Photography ProductTypeName : SURVEILLANCE_RECORDER_SYSTEM Publisher : Night Owl SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/51DNFvGasaL._SL75_.jpg SmallImage_Width : 75 Studio : Night Owl Title : Night Owl 10 Channel Bluetooth Video Home Security Camera System with (6) Wi-Fi IP 2K HD Indoor/Outdoor Spotlight Cameras with 2-Way Audio and 1TB Hard Drive (Expandable up to 10 Cameras) Weight : 10 WeightUnit : pounds