The 3M Peltor Tactical 100 Electronic Hearing Protector, has improved performance, enhanced comfort and greater functionality. These ear muffs feature 3M technology that suppresses harmful gunshot noise while amplifying low-level sounds, the Peltor 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. *Please note this is not a noise cancelling hearing protector.