SureFire EP7 Sonic Defender Ultra Earplugs 25 Pair Clear Medium NSN 6515-01-622-2001. Hearing protection should never be ignored. EP7 Sonic Defenders Ultra earplugs protect your hearing against Noise Induced Hearing Loss (NIHL) without interfering with your ability to hear routine sounds or conversations. Their foam-tipped stem design featuring soft memory-foam Comply Canal Tips fits most people and provides a Noise Reduction Rating (NRR) of 28 dB. Sounds at safe levels are allowed to pass through into the ear canal while potentially harmful noises (above 85 dB) are reduced via a proprietary design that incorporates a special noise-reducing filter. EP7s include attached filter caps which can be inserted for additional protection and blocking out lower-level noise in situations where hearing ambient sounds or conversations isn't critical. They also serve as earpieces for compatible radio communication systems. Specifications for SureFire EP7 Sonic Defender Ultra Earplugs: Manufacturer: SureFire NRR: 28 dB Package Type: Plastic Carry Case Condition: New Features of SureFire EP7 Sonic Defender Ultra Earplugs Provides a 28-dB Noise Reduction Rating (NRR) with filter caps inserted to minimize potentially harmful sounds Lowers potentially dangerous noise levels above 85 dB Hear safe sound levels (with filter caps out) as if you weren't wearing ear plugs Patented EarLock retention rings utilize seven contact points to lock earpieces in place and fit the same way every time Soft memory-foam Canal Comply Tips provide secure seals in ear canals and all-day comfort Made from hypoallergenic medical-grade polymer that's soft comfortable and durable Low-profile design allows you to keep them in place while wearing a mask helmet hat or while using a phone headphones or supplemental hearing muffs Serve as earpieces for compatible radio communication systems Package Contents: SureFire EP7 Sonic Defender Ultra Earplugs 26in Polymer Lanyard Comply Canal Tips SureFire EP7-MPR-BULK: EP7 Sonic Defender Ultra Earplugs 25 Pair Clear Medium NSN 6515-01-622-2001