Highlights

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
Two levels of protection with filter caps in or out—the louder
Made from hypoallergenic, medical-grade polymer that’s soft, durable, and long-lasting
Soft, triple-flanged stems provide secure seals and all-day comfort
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
Patented EarLock retention rings utilize seven contact points to lock earpieces in place
Made in the USA

Description

Listen To Your Ears. Your hearing health should never be ignored. SureFire EP4 Sonic Defender Plus will protect your hearing against Noise-Induced Hearing Loss (NIHL) without compromising your ability to hear routine sounds or conversations in noisy environments. Their triple-flanged-stem provides a Noise Reduction Rating (NRR) of 24 dB. Safe sound levels are allowed to pass through into the ear canal, while potentially harmful noises (above 85 dB) are reduced via our proprietary noise-reducing filter. EP4s include attached filter caps that can be inserted for additional protection, blocking out lower-level noise, like that heard on an airplane, where hearing ambient sounds or conversations isn’t critical. Sonic Defenders are made from a soft, durable, hypoallergenic polymer that provides all-day comfort and extends product life (up to 6+ months, depending on usage and care).

NOISE-REDUCING FILTER

Lowers dangerous sound levels while allowing ambient sound and conversation to be heard

ALL-DAY PROTECTION & COMFORT. EVERYDAY APPLICATIONS.

TRUSTED BY THE MILITARY

Protect your hearing from dangerous noise levels—including sudden impulse noise like gunshots—while allowing you to still hear safe ambient sounds. So you enjoy effective hearing protection while maintaining situational awareness and the ability to hear important conversations or commands.

LOW-PROFILE DESIGN

SureFire Sonic Defenders feature our innovative EarLock outer rings, which lock the earplugs in place with seven unique grab points. A low-profile design allows for easy wearing under a hat, helmet, mask, headset, or supplemental muffs—even while using the phone.

HYPOALLERGENIC CONSTRUCTION

Provides all-day comfort making it ideal for Safety, Industrial, and Construction fields. EP4 Sonic Defenders use established, non-electronic technology to reduce dangerous noise while allowing the hearing of safe-level conversations, commands, and ambient sounds

Key Attributes

Specification	Value
Noise Reduction Rating (NRR)	24 dB (with filter caps inserted)
Filter	Yes
Stem Type	Triple Flanged
Radio Communication Compatible	Yes

*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

Click to enlarge