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EP4 Sonic Defenders Plus Ear Protection Earplugs

Hearing protection with the ability to hear lower-level sounds and conversations.


EP4 Sonic Defenders® Plus protect your hearing without interfering with your ability to hear routine sounds or conversations.

Their triple-flange 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 to safe levels via a proprietary design that incorporates the patented Hocks Noise Braker® filter. Comfortable EP4 Sonic Defenders® Plus Ear Protection also serve as earpieces for EarPro by SureFire® and other compatible radio communication systems simply by removing the Hocks Noise Braker filter and attaching the earpiece to the system. NOTE: EP4 earpiece no longer provides hearing protection once the Hocks Noise Braker filter has been removed.

EP4s include attached stopper plugs, which can be inserted for further protection and blocking out lower-level noise, like that heard on a plane, where hearing ambient sounds or conversations isn't critical. The right/left color-coded EP4 Sonic Defenders® Plus Ear Protection are made from a soft but durable, hypoallergenic polymer and are ergonomically shaped, with an adjustable-stem design, providing a secure fit, all-day comfort, and extended product life (3 to 6+ months, depending on usage and care). And their low-profile design means they can be worn while wearing a helmet or mask, or while using a phone or headset.

The EP4 Sonic Defenders® Plus Ear Protection features include:
  • 24dB Noise Reduction Rating (NRR) with stoppers inserted
  • Lowers potentially dangerous noise levels above 85dB
  • Hear safe sound levels (with stoppers out) as if you weren't wearing ear plugs
  • EarLock™ by SureFire® retention ring utilizes seven contact points to lock earpiece in place and fit the same way every time; soft, double-flange stem provides secure seal and all-day comfort.
  • Made from hypoallergenic, medical-grade polymer that's soft, durable, and long lasting.
  • Low-profile design allows you to keep them in place while wearing a mask, helmet, hat, or while using phone, headphones, or supplemental hearing muffs
  • Serve as earpieces for EarPro by SureFire® and other compatible radio comm systems
  • 26" polymer lanyard included
The EP4 Sonic Defenders® Plus Ear Protection are sold as a single left/right set (or in a box containing 25 sets). Each set is packaged in a convenient carry case and includes a polymer lanyard.

EP4s are available in small, medium, and large. Proper size is based on the dimensions of your ear's concha bowl. Size "medium" fits most people; however, to ensure the best possible fit, review the earpiece sizing chart below. For those with larger ear canals, the EP4's three-flange stem may provide a better fit than the EP3's (sold separately) two-flange stem.

Sizing Chart:
  • Small: Concha bowl height less than 1"
  • Medium: Concha bowl height 1"
  • Large: Concha bowl height greater than 1"

    Dimensions: 1"L x 1"W x 1"H
  • EP4 Sonic Defenders Plus Ear Protection Earplugs
    EP4 Sonic Defenders Plus Ear Protection Earplugs

    EP4 Sonic Defenders Plus Ear Protection Earplugs

    789537p

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