About this item VERY IMPORTANT, MUST READ (ONLY WORK WITH JOINLGO DVR) . This is a 1080P AHD NTSC mode camera. 4 Pin Aviation port 9mm. can work with all JOINLGO 1080P mdvr. Please do not buy if you do not have JOINLGO DVR. Waterproof IP68 Rate waterproof. Supports to install outside. Housing Material: Aluminum Alloy Night Vision 12 pieces IR LED for night vision. up to 20 meters of night vision Large Viewing Angle fixed 2.8mm lens, viewing angle is about 120°. Compatibility This camera is designed to work with JOINLGO dvr. It is 1080P AHD NTSC mode Camera. only video, no audio. working voltage 12VDC.