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 19dB. Sounds, at safe levels, are allowed to pass through into the ear canal, while potentially harmful noises (above 85dB) are greatly reduced via a proprietary design that incorporates the patented Hocks Noise Braker® filter. EP4s include attached stopper plugs, which can be inserted to block out lower-level noise like that heard on a plane, or in situations where hearing ambient sound or conversations isn't critical, such as when trying to sleep. The right/left color-coded Sonic Defenders Plus
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.
EP4 Sonic Defenders Plus
are sold in single left/right setsor in a box containing 25 setsin small, medium, and large. Each set is packaged in a convenient carry case. Medium EP4 Sonic Defenders Plus
fit most people with larger ear canals comfortably. Sizing is based on the size of the ear's Helix Bowl. Consult Sizing Chart for proper fit.
Please Note: We cannot ship Surefire products outside the United States.
For those who do not have larger ear canals, double-flanged EP3 Sonic Defenders may provide a better fit.
- 19dB* Noise Reduction Rating (NRR) for EP4 Sonic Defenders Plus
- Lowers potentially dangerous noise levels above 85dB
- Hear safe sound levels (with stoppers out) as if you weren't wearing ear plugs
- Ergonomic design and triple-flange stem design conforms to ear shape for comfort and secure retention
- 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
*NRR rating with stoppers inserted