Constant Speed Dome IP Camera,Waterproof MPEG-4, SONY 1/4" CCD, D/N, remote control 220x zooming and PTZ through internet, 0?15?s horizontal shift, 0?356?pan movement, 90簐ertical rotation, Auto continuous rotation, 64 preset positions, 7" (9") dome, -20篊~50篊 operating temperature.420TVL. With night vision function, its picture is colorful in the daytime and black in the night