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SureFire - EP4 Sonic Defenders Ultra


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  • Product Description

    SureFire - EP Sonic Defenders Ultra


    P4 Sonic Defenders® Plus protect your hearing without interfering with your ability to hear routine sounds or conversations. Their triple-flanged stem design fits larger ear canals and provides a Noise Reduction Rating (NRR) of 24dB. 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 a special noise-reducing filter. EP4s include attached filter caps, which can be inserted for additional protection and blocking out lower-level noise, like that heard on a plane, where hearing ambient sounds or conversations isn't critical. Right/left color-coded Sonic Defenders Plus are made from a soft but durable, hypoallergenic polymer that provides all-day comfort and an extended product life (up to 6+ months, depending on usage and care). Their patented EarLock® retention rings lock the earplugs in place, while soft, adjustable triple-flanged stems provide secure seals in the ear canals. A low-profile design means EP4s can be worn while wearing a helmet or mask, or while using a phone or headset. Available in clear, black, or orange. 

    Comfortable EP4 Sonic Defenders Plus also serve as earpieces for compatible radio communication systems* simply by removing the noise-reducing filter and attaching the earpiece to the system. NOTE: EP4 earpiece no longer provides hearing protection once the noise-reducing filter has been removed. 

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  • Product Videos

    • SureFire Hearing Protection Video
      See SureFire's best-in-class line of hearing-protection earplu...
    • Everyday Uses for SureFire Hearing Protection with Dakota Meyer
      Dakota discusses why SureFire Sonic Defenders earplugs should ...

    SureFire Hearing Protection Video

    See SureFire's best-in-class line of hearing-protection earplugs and earpieces in action. They're manufactured in the U.S. from only the finest materials and incorporate cutting-edge design—like EarLock retention rings—to deliver the ultimate in comfort and fit. This near custom fit ensures that Sonic Defenders earplugs will protect users against potentially dangerous noises. To see the whole line, please visit
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