Otis Technology presents a smarter way to protect your hearing while improving your response to range commands and other communication. EarShields new Sound Reduction Chamber Technology changes the sport shooter experience. Now you can shield your ears from high-decibel noise comfortably while hearing other sound frequencies such as speech, clearly, without removing your gear. Unlike muffs, EarShields compact design wont get in the way of achieving the proper cheek weld.Features : Lightweight and Collapsible Adjustable to Fit Any Shooter No Batteries Required