The Armasight Nyx-7 PRO ID is an extremely rugged but compact bi-ocular night vision goggle. Built with the highest grade optics and simple, reliable electronics, the Nyx-7 PRO ID provides clear, bright nighttime images under even the most trying conditions. For hands-free use, it can be worn on the included flip-up head mount or optional universal helmet mount, both of which have a built-in mechanism that will automatically turn the unit off when it is flipped up. The Armasight Nyx-7 PRO ID is equipped with built-in infrared illuminator that allows the user to operate in total darkness. It also has a high-light cut-off feature that protects the image tube from bright light sources, as well as a flip-up shut-off feature that activates when used with the optional helmet mount assembly. The Armasight Nyx-7 PRO ID can also be utilized as an excellent long-range viewer with optional 3X A-focal, 5X and 8X magnifier lenses. The CR123/AA adapter is built into the battery compartment and requires only a single 3V CR123 or 1.5V AA battery for hours of night vision operation. The Armasight Nyx-7 PRO ID is equipped with a high-performance Improved Definition Gen 2+ IIT providing resolution of 47-54 lp/mm. Waterproof, rugged, lightweight and compact, the Armasight Nyx-7 PRO ID is the perfect hands-free unit for users ranging from the casual civilian to even the most demanding military and law enforcement professional.