4, 8, 16 and 32 Channel DVR Camera Systems: Are you interested in securing your world with CCTV cameras? 4 channel CCTV Surveillance Security DVR uses 4 cameras and HD for recording purpose. 8 Channel DVR Security System comes with dome cameras, day and night cameras or hidden cameras of your choice for indoor or outdoor protection of loved ones. 16 Channel DVR Security H.264 comes with assorted 16 cameras, PTZ camera, wireless IP PC Cameras, weatherproof camera and spy cameras can be used with 1TB High Density HD for months of surveillance video recording. 32 Channel DVR is perfect for 32 pieces of same or assorted hidden or overt cameras. You can record and store months of video with this 32 channels CCTV DVR Camera System.