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EP4 Sonic Defenders® Plus

Filtered Flanged Earplugs

EP4 Sonic Defenders Plus hearing protection -- Black

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EP4 Sonic Defenders Plus - Comfort and Effectivness

I recieved my EP4s a few weeks ago. I ride a motorcycle and needed earplugs that protected (from wind and road noise plus my loud pipes) and fit better than the general foam plugs I'd been using. I ordered both the medium and small version of the EP4s because I wasn't sure what size would fit best. I was always stuffing in the foam plugs so I was guessing I might have a smaller ear canal. What I found was the mediums were perfect and the small really looks like something a kid might use. The EP4s have worked really well so far. The medium size fits nicely in my ear and I don't notice them or get any aches while wearing them with a full face helmet, even after several hours of riding. These really improve my overall riding experience. My ears don't ring after long rides and I don't feel there has been any loss in safety from wearing them. I will continue wearing these and would order again as replacements are needed.

Reviewed by Superrust (Posted on 7/7/14)

another layer of protection

SureFire, thanks for the great job of providing these EP4 earplugs. They are just what I need to provide another layer of protection I found necessary when firing my new Remington 300 ultra mag. The typical ear muffs weren't quite adequate at times. The fit is excellent. Thanks for the quality products as usual.

Reviewed by Chris in Utah (Posted on 7/4/14)


I run over the ear style ear protection, but when shooting in closed environments often I double up for extra protection. These are perfect for this application because they are low profile and can be unplugged if necessary. Also good for running plugged if you need ear pro that is just a little lower profile. Best and highest quality options for the price at SureFire.

Reviewed by BCF (Posted on 7/3/14)

Low key, easy hearing protection.

I received them a week ago and used them a few times since then. I wore them while hog hunting, and the ability to let sound in (voices, etc) was much appreciated.

Yesterday, at the range (with shooters on my right and left) I plugged them to let no sound in, and they works as advertised.

This is a great product, and something I'd recommend to anyone. In fact, I have talked my dad and a couple friends into picking some up.

Reviewed by Mike Morgan (Posted on 6/25/14)

not for me

I use ear plugs all the time at work and bought these for shooting. Big mistake they did work at all about went deff and I know that they were in right they fit good and sung. a week later ears still ringing, I think they are not worth one red cent.

Reviewed by jpbstr (Posted on 6/14/14)

Great Product

Works well. Comfortable to wear. Easy to carry so as to have them available when needed. Can hear well and still have protection.

Reviewed by Joe (Posted on 6/5/14)

The best easy and comfortabel earplugs on the market!

As i tried many simpel earplugs (and i have pile stacked up here...) the all fail in either; doing what they suppose to do and are reasonable comfortable, or not functioning and not comfortabel!

Surefire filled that gap with there earplugs! Finally; no big willy on my ears any more and just; some simpel but effective earprotection that does not make you look like goofball.....

Excellent product Surefire; keep innovating this product it is the best i came across untill now!

Reviewed by Robin (Posted on 3/12/14)

Awesome Product

I ordered these for two reasons, I wanted something comfortable to wear while going to the range to sport shoot. Also, I work around jet engines and the EP4 Sonic defenders are awesome for both applications. I have refered others to try the product and hope they do. The fit is perfect, I don't have to worry about them falling off or needing to remove them when people need to talk.

I highly reccomend this product and give it 5 stars.

Reviewed by Bernard, TX (Posted on 2/21/14)

Great Product

Being a law enforcement officer and having to qualify multiple times a year I needed something that was efficient and reasonable in price. The EP4 Sonic Defenders Plus have really done the job. Barely noticeable when wearing them and do a great job to block out the noise but not to much to where you can't hear verbal commands. Everybody was really impressed with them that a lot of my fellow officers and the range guys are looking to pick up a pair or two.

Reviewed by Lerch (Posted on 2/14/14)

Flexible and effective shotgun sports ear protection

I shoot sporting clays and skeet. I have had the EP3 in a medium for a while but was not 100% happy with the fit, especially since I have differences in ear fit between left and right. The right has never been tight and I was always fiddling with it. I ordered 2 pair of EP4, one medium and one large. I use the large on my right and the medium on my left. The triple flanges work much better than the EP3 double flanges for both sides, and the large is a great fit for my right.

I can hear my shooting buddies and the traps throwing, yet get excellent BANG suppression.

I highly recommend the triple flangs EP4, and I it is a bonus that you can mix sizes if you have mixed ear bowl sizes like me

Reviewed by P M (Posted on 2/9/14)


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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