It is a kind of night vision monocular which can be viewed by two eyes and can be mounted with helmet, small in size, light in weight. Magnification can be changed by replacing different objective lens, 1x, 3x and 4x are available. Other objective lens with different focal distance can be also provided to meet your needs. This helmet-style night vision goggle can go with laser IR irradiator installed in the gun, and it is able to shoot the target which is within 150m.It also can be used as hand held Dim-light telescope. It adopts Russian Gen-super 2 and 3 image intensifier tube with the function of anti-glare and built-in IR Illuminator. It is mainly used for military observation, sea defence, frontier reconnaissance, surveillance, suppress smuggling, drug smuggling investigation and vehicles  and  aircraft maintenance under dark condition etc.