Favored by shooters and factory workers across the globe, Surefire® Sonic Defender® Medium Hearing Protection offers superior ear protection from gun blasts, heavy machinery, and other harmful sounds, without compromising your ability to hear routine sounds or conversations in noisy environments. Designed to deliver a Noise Reduction Rating (NRR) of 24 dB, these hypoallergenic earplugs are equipped triple-flanged-stem system, engineered to allow safe sound levels to pass through into the ear canal, while potentially harmful noises above 85 dB are reduced through a proprietary noise-reducing filter. Plus, these earplugs include convenient filter caps, designed to block out lower-level noises for added protection. If that’s not enough, these earplugs are equipped with patented EarLock® retention rings for added comfort and reliability. Order today!