Etymotic GunsportPRO Earplugs, Electronic Hearing Protection Designed for Hunters, Shooters and Gun Enthusiasts, 1 pair, Black Blast protection for gun sport enthusiasts, professional shooters, guides and instructors, and hunters Allows natural hearing when no background noise is present and gradually protect from loud noise from vehicles or machinery At the flip of a switch sound is amplified, improving distance detection up to five times for enhanced awareness while at the same time protecting from blasts Includes assorted eartips, filter removal tool and replacement filters, protective case, neck cord, and #10 Zinc Air batteries 1 year manufacturers warranty provided for products purchased from authorized resellers