Surefire EP 3 Sonic Black Defenders protect your crucial hearing protection without interfering with your ability to hear routine sounds and conversation. The Sure-Fire SonicDefender's low-profile design means you won't have to remove them while wearing a helmet, mask or hat, or before using the phone, a headset or supplemental ear muffs so you can have no problem with hearing protection. This is one of the best devices when it comes to hearing protection. Protect your hearing without interfering with your ability to hear routine conversations. Sounds, at safe levels, are allowed to pass through into the ear canal, while potentially harmful noises (above 85dB) are reduced via a proprietary design that incorporates the patented Hocks Noise Braker filter. We offer an extensive collection of protection for your ears.Safe sound levels pass through while potentially harmful noises are lowered. SureFire Sonic Defender Earpieces are made from an ultra-soft, hypoallergenic material, and ergonomically shaped so you can wear them comfortably throughout the day. If you have any questions regarding and of our hearing protection devices, please do not hestiate to contact us and ask. For a full line of Surefire hearing protection and other products by SureFire on sale please visit the Surefire page on our website. For more brand name hearing protection please visit our hearing protection store section.