Manual system gain and focus for custom image quality optimization, Rotating binocular design allws low profile agains the helmet when is stowed position, ability to use as a single monocular, quick-releasse helmet mount design, Auto Off when stowed, resumes power when deployed, Internal low-battery indictor visible in optic when>10 minutes, Replaceable tubes, Compact design reduces head-borne weight and decreases neck strain, Works with currently fielded dovetail helmet mounts, snap on diopter lenses optimize operator preference for visual acuity.