Surefire EP4 Sonic Defenders Plus Earplugs - Medium Aluminum Overall Length:8

Overall Length:8

Liner Lock

The additional orange and silver sticker on the front of the box that says “Upgrade for Free

great for use in tents

Surefire EP4 Sonic Defenders Plus Earplugs - Medium Aluminum Overall Length:8EP4 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.