EarPro, a line of hearing products from SureFire, has introduced a new kind of passive hearing protection: the EP-3 Sonic Defenders.
The Sonic Defenders is a product that sets inside of the ear, allowing normal volume sounds to pass freely through to the ear, yet shuts down when loud sounds, such as gunfire, is encountered. The EP-3 is passive technology, meaning there are not any batteries to replace. Using physics principals, SureFire was able to create this new style of hearing protection that reduces loud noises by 16 db, but still allows normal conversations with them in place.
The Sonic Defenders are ideal for soldiers or SWAT officers that find normal hearing protection is not practical. Additionally, recreational shooters, such as hunters, can also find these to be an excellent way to prevent damage to their hearing while enjoying their sport.