Surefire EP4 Sonic Defenders Plus Earplugs - Medium Aluminum The additional orange and silver

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

and everywhere in-between

and navigation plus it makes a wonderful night light

Closed Length - 5

Rounded corners are easy to clean with no hard angles where dirt

Surefire EP4 Sonic Defenders Plus Earplugs - Medium Aluminum The additional orange and silverEP4 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.