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EP4 Sonic Defenders® Plus

Filtered Flanged Earplugs

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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)

Regular Guy

This is the second pair of ear plugs, they are great for everything from shooting, to mowing grass or tuning out your kids! Love them!!!!!

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

EP4 Sonic Protectors

Selected for a small woman with very small frame. An excellent fit in comfort, protects the hearing as described and can easily be worn with a headphone secondary protection. The only con side is remembering which ear they are designed as they are fitted for left and right ear.

Reviewed by K-Products.US LLC (Posted on 10/12/13)

EP Sonic Defenders

An excellent fit in comfort, protects the hearing as described and can easily be worn with a headphone secondary protection. The only con side is remembering which ear they are designed as they are fitted for left and right ear.

Reviewed by K-Products.US LLC (Posted on 10/12/13)

best product

I love my ep4 sonic defenders, I now refuse to use anything else out on the range. I also love the fact that they are compatible to my radio which in the past I had trouble with my ear peice falling out. Just yesterday I connect the ear pieces to my iPhone forget the war buds I used before I'm sticking with these. I keep telling myself I'm going to order another pair just to have on stand by but the quality is so darn good I might just wait and see if these ever get a "flat tire". The sizing chart was accurate the product is perfect and I've referred these to everyone on the range. Great job, SureFire

Reviewed by S.Lewis (Posted on 10/11/13)

Simple effective and comfortable

The two pairs of sonic defenders I have perchased have proved to be very comfortable enough so you could sleep with them on your side. I originally had the generation 3 defenders without the cord where a little hard to keep track of but the container they came is was useful the gen4 I would recomend some sort of case to put them in when not in use and the cord is removable. The canal cap that allows you to very the level of protection makes it easier to hear when out but if you have a 308 you can put them back in but 556 762/39 ou don't need them and still clearly hear instructions. All in all I love them I have bin recommending them to anyone who likes them for sleep or shooting hands down the most comfortable effective hearing protection Iv used. Keeping them clean is not really a problem when they get old they shrink a little but for what you get $13 might seam high but if you can get them try them out. Sizing is a bit of a guess I'd start with medium. Hope this helps.

Reviewed by Peter the great (Posted on 10/11/13)

shooting sports fan

great reduction of sound compared to the cumbersome ear muff type of ear protection! I got a medium and it fits comfortably where I would say I am average size.

Reviewed by M G (Posted on 10/11/13)

EP4 Sonic Defenders

Most comfortable, best working earplugs I have ever worn. Great product!

Reviewed by Caleb Luikens (Posted on 10/11/13)

Great Ear Plugs!

I've been a shooter for a while and tried different kinds of hearing protection, foam ear plugs, over the ear muffs, I was never really satisfied with them, muffs i found i didnt like while shooting rifles, and the foam plugs never seemed to be comfortable. I tried the Surefire Ep4's and havent looked back since. They are comfortable and work extremely well blocking the loud noise and allowing more normal talking volume in. I recently took a carbine training couse and had these in all day without any discomfort and i didnt have to keep pulling them out and putting them in like with foam inserts. I love my Ep4's and will be buying many more pair to keep on hand.

Reviewed by Jeff (Posted on 10/11/13)


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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