GW Security HD IP 8 Channel NVR (No Hard Drive) Security System with 4 IP CCTV 5MP 1080P Outdoor Indoor Cameras with 3.6mm HD Lens Outdoor / Indoor Metal Vandal proof & Water proof GW Security HD IP 8 Channel NVR (No Hard Drive) Security System with 4 IP CCTV 5MP 1080P Outdoor Indoor Cameras with 3.6mm HD Lens Outdoor / Indoor Metal Vandal proof & Water proof Multiple operation modes (Preview, record, playback, backup, network) Support PC and mobile surveillance by phones with Andriod, Balckberry, iPad, Symbian, and iPhone USB2.0 backup, upgrade and mouse operation 1 Year Warranty and Free Tech Support within U.S.