Helmet NVG Battery Pouch and Battery Box Retention System Realistic design for authentic operation: includes a battery box and power cord that replicate the environment of night vision devices, enhancing the realism of your helmet setup. Adjustable hookandloop fastening: back panel secures to most helmets with an adjustable, easytouse fastening system for a secure fit. Enhanced simulation for immersion: engineered to mimic the look and function of real night vision equipment, with a helmet counterweight pack that adds authenticity to training, airsoft games, and related activities. Versatile compatibility: adaptable hookandloop design works with a wide range of helmets. Use scenarios Training and airsoft: use during drills or games to reproduce authentic NVG weight distribution and power setup, improving realism and handling. Film, photography, and media production: employ as a prop to achieve convincing NVG aesthetics and functionallooking gear in scenes requiring authentic equipment. General helmet : add realism and functional balance to various helmet configurations for extended wear during field operations or demonstrations.