Featuring proprietary 3M technology that suppresses harmful gunshot noise while amplifying low-level sounds, the Tactical 100 Electronic Hearing Protector is ideal for both indoor and outdoor shooters and hunters. Adaptive Frequency Response reduces background noise for clearer conversations and hearing of commands. Plus, the Variable Suppression Time feature provides optimal echo reduction in indoor shooting environments. With improved performance, enhanced comfort features and greater functionality - including a tethered battery door, streamlined design, improved noise reduction rating and enhanced electronics - the Tactical 100 Electronic Hearing Protector combines innovative 3M technology with the Peltor? Sport Brand to give shooters and hunters an excellent hearing protection experience.