Surefire EP4 Sonic Defenders Plus Earplugs - Large Fixed Blade Spare o-rings

Spare o-rings

it takes up about the same space as a stack of paper plates

Buttons and button holes for adjustablitiy

This fully waterproof accessory case is exceptionally resistant to the demands of the trail

Surefire EP4 Sonic Defenders Plus Earplugs - Large Fixed Blade Spare o-ringsEP4 Sonic Defenders Plus protect your hearing without interfering with your ability to hear routine sounds or conversations. Their triple flange stem design fits larger ear canals and provides a Noise Reduction Rating (NRR) of 19dB. Sounds, at safe levels, are allowed to pass through into the ear canal, while potentially harmful noises (above 85dB) are greatly reduced via a proprietary design that incorporates the patented Hocks Noise Braker filter.