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EP4 Sonic Defenders® Plus

Filtered Flanged Earplugs

EP4 Sonic Defenders Plus hearing protection -- Black

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Great Product

I wore these while working an IDPA Championship with out a problem. Was able to hear competitors along with protection,Even held up to Magnum loads under cover. I like that you can adjust with attached plug. Will defiantly purchase again.

Reviewed by David (Posted on 10/16/13)

they work

they work, they're simple. what else do you need in hearing protection?

Reviewed by W C Raymond (Posted on 10/14/13)

wood worker

I very sensitive to noise and at the same time I cant't use earplugs that are hard because they hurt my ears, These surefire earplugs are very comfortable and reduce all the noise I'm concerned about.
Good purchase...

Reviewed by John (Posted on 10/14/13)

Great Hearing Protection for Helmet users

My wife and I have been using these for several years while riding motorcycles. The earplugs are effective and easy to use. They stay in when putting your helmet on and off. If one does happen to come loose, the attachment cord keeps you from losing it. We both find these plugs to be our favorite. They are great. It is really nice that they come with a case to hold your plugs when not in use. Unless they have redesigned the case since we bought ours, both of us found the case hard to use and are currently using a much better designed ear plug case left over from a previous pair of earplugs from another vendor.

Reviewed by Auser (Posted on 10/13/13)

Owner, Common Sense Defense

The EP4 Sonic Defenders are an excellent noise reduction solution. I have used them in shooting competitions for a couple of years now. While I like to use full size ear muffs too, the EP4 Defenders are the best solution in 3 gun or warm weather as they are light and comfortable for long term used.

Reviewed by Kent F (Posted on 10/13/13)

Best ear savers ever

I have purchased this item for my mechanic brother, deputy bud, and myself. They are incrrdible quality and last remarkably long. The sonic defenders are well worth the investment.

Reviewed by Aaron (Posted on 10/13/13)

Great ear protection for indoor or outdoor use!

Love these little guys! They actually fit in your ear unlike those strange squishy plugs you get for about a dollar. I work on a lot of indoor ranges, and they do a great job protecting my ears. Additionally I love shooting rifle outdoors with the , the muffs can sometimes feel bulky and get in the way. I love the , and wear them all the time. Can't recommend enough.

Reviewed by Poppy (Posted on 10/12/13)


Best earplugs I have used!

Reviewed by Drew G (Posted on 10/12/13)

Great Product

I bought these plugs as a back up for the EP7s and I was not disappointed. They are quick and easy to insert in your ear, and they will last you the whole while. I have no regrets on purchasing these. Thanks, SureFire.

Reviewed by Zak (Posted on 10/12/13)

Great Earplugs

I work in an environment that has a large amount of background noise in the 25 to 100 decibel range throughout the day. I have found these plugs to be the best, most comfortable earplugs that I have worn.

I can leave them in for 8-10 hours a day and feel fine. I am also able to hear co-workers talking even with the plugs in. I still like to wear ear muffs with a better NRR when I am working on something that is over say like 50 decibels.

I would prefer that the hole for the lanyard was not in the plug, since I don't use them.

My only complaint with these plugs was that the case that they came in was pretty pathetic and fell apart really quickly so I had to get another case to put them in, which cost me another $5

Reviewed by Bale (Posted on 10/12/13)


Noise Reduction Rating 24dB (with filter caps inserted)
Color Black, Clear, Orange
Size S, M, L
Filter Yes
Stem Triple Flanged
Radio Comm Compatible Yes
Included Lanyards Detachable
Features Fits larger ear canals



For detailed specifications, click here.

EP4 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.

EP4s are available in small (S), medium (M), and large (L). Proper size is based on the dimensions of your ear's concha bowl. Size "medium" fits most people. For those with smaller (in diameter) ear canals, the two-flange stem of our EP3 Sonic Defenders may provide a better fit than the EP4's three-flange stem.

For best fit, click on the small Sizing Chart image at left.

EP4 Sonic Defenders Plus 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.

Ā  * RADIO COMM SYSTEM COMPATIBILITY: Thales: Covert Security Harness; Harris: Security Force Communication Set; Motorola: Surveillance Kits; Tactical Command Industries: Tactical Earpiece Products; Peltor: Lightweight Systems-Hearplug; Silynx: C4Ops Headset

  • 24dB Noise Reduction Rating (NRR) with filter caps inserted
  • Lowers potentially dangerous noise levels above 85dB
  • 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, triple-flanged stems provide secure seals 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 compatible* radio communication systems
  • Available in clear, black, or orange
  • 26" polymer lanyard included

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