Product Overview The RNV-31S is a next-level dual-tube night vision binocular system designed for lightweight performance without compromising on features. With mil-spec optics, modular power support, and advanced controls like manual gain and flip-off shutoff, it’s built for serious users who demand flexibility, clarity, and reliability in low-light environments. Key Features Mil-Spec Optics — enhanced clarity, sharpness, and durability under tactical use. Manual Gain Control — the power knob doubles to adjust gain, allowing you to adapt image brightness on the fly. Multiple Battery Options — compatible with AA, CR123A, or optional 18650 battery packs for extended runtime. Auto/Flip-Off Shutdown — pods power off when flipped up or to the side, preserving battery and protecting the tubes. PEEK Polymer Housing — lightweight yet strong, rated for harsh temperature extremes. Bright Source Protection & Low Battery Indicator — safeguards the tube from bright light exposure and alerts you when levels are low. Why Choose the RNV-31S If you want dual-tube NVG performance in a compact form, the RNV-31S brings that and more. With mil-spec glass, flexible power options, manual gain, and modular design, it suits users who want serious performance without the weight penalty of bulkier systems. Perfect for operators, hunters, and tech-savvy enthusiasts who refuse to compromise.