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Surefire | sfr-ep4-bk-m
39

Surefire Sonic Defenders EP4 PLUS

Sale price$56.95

Why you'll love it:

  • Attenuation (NRR) of 24dB
  • Triple-flange design fits most ears
  • Blocks Harmful Noise, Protects Hearing
  • Lanyard included - Never lose a Plug
  • Patented EarLock® retention rings lock earpieces in place
  • High Noise Reduction
Size: Medium

Size

Colour: Black
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Description

SureFire EarPro Sonic Defenders® PLUS Variable Noise Reduction Shooter's Ear Plugs protect your hearing without interfering with your ability to hear routine sounds or conversations.

Designed for shooters, EarPro Sonic Defenders PLUS offer an exceptional solution to many of the other common, hearing protection challenges.

Sonic Defenders PLUS feature a triple-flange stem design that fits most people and provides a Noise Reduction Rating (NRR) of either 9dB (with stoppers open) or 24 dB (with stoppers inserted.) EarPro Sonic Defenders PLUS feature attached stopper plugs, which can be inserted to help block out lower-level noise like that heard on a plane, or in situations where hearing ambient sounds or conversations isn't critical, such as when trying to sleep.

With the stoppers open, sounds at safe volume levels are allowed to pass through the earplugs into the ear canal with just a small amount of attenuation, letting you clearly hear conversations, range officer commands, traffic noise, and warning sounds. With the stoppers either open or closed, potentially harmful noises (above 85dB) are instantly reduced via a proprietary design that incorporates the patented Hocks Noise Braker® filter. As the noise level increases, the attenuation provided by the Hocks acoustic filters also increases, giving you increasing protection instantly and continuously as you need it.

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 or more, depending on usage and care). Sonic Defenders PLUS low-profile design means they can be worn while wearing a helmet or mask or while using a phone or headset.

Features

  • Noise Reduction Rating (NRR 9-NRR 24*)
  • 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 double-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 earmuffs
    *NRR rating with stoppers inserted
  • Comes with a lanyard
Key certifications:

NRR 24

An NRR of 24 means that the hearing protection is estimated to reduce noise levels by an average of 24 decibels across various frequencies.

'NRR' in hearing protection stands for 'Noise Reduction Rating,' which is a single value used to indicate the average level of noise reduction a hearing protection device provides across different frequencies, essentially telling you how much sound attenuation the earplugs or earmuffs will offer when worn correctly; the higher the NRR value, the greater the noise reduction level is considered to be.

NRR is primarily used as a rating system in North America, while Europe often uses 'SNR' (Single Number Rating) and Australia/New Zealand use 'SLC80'; which both differ slightly in calculation.

Tech Specs

For Kids
Not designed for children
Certified For
Australia & NZ (SLC80): No
USA (NRR): Yes
EUR (SNR): No

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