Etymotic Research GSP15 GunSport Pro Series High-Definition Electronic Earplugs Clear Designed for hunters, guides, and recreational, tactical and professional shooters Dual-mode switch provides both hearing enhancement and blast protection Hearing enhancement mode, which provides up to 5X amplification Includes assortment of ACCO-Fit eartips, filter tool, ACCU-Filters, cleaning tool and batteries Durable neck cord, protective case and user manual included Battery Pack included