Surefire EP4 Sonic Defenders Plus Earplugs - Medium Aluminum Liner Lock

Liner Lock

Edge Plain edge

Overall Length:8

afternoon hydration and evening sport drink can all be enjoyed from one bottle

Closed Length - 5

Surefire EP4 Sonic Defenders Plus Earplugs - Medium Aluminum Liner LockEP4 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.