Non-electronic earplugs by Surefire LLC.
December 4, 2013
EP7 Sonic Defenders Ultra protect users’ hearing from dangerous noise levels—without interfering with their ability to hear ambient sounds and conversations. These affordable, non-electronic earplugs feature Hocks Noise Braker® filters that allow lower-decibel sounds to pass through, while potentially harmful sound levels above 85dB are reduced to safer levels.
Surefire LLC, www.surefire.com, (800) 828-8809.