{"product_id":"surefire-ep4-sonic-defenders-plus-filtered-earplugs","title":"SureFire EP4 Sonic Defenders Plus Filtered Earplugs","description":"\u003cp class=\"product-lead\"\u003eThe SureFire EP4 Sonic Defenders Plus are filtered earplugs built for professionals who need hearing protection without losing situational awareness. A patented triple-flanged stem design delivers a 24 dB Noise Reduction Rating (NRR), while a proprietary noise-reducing filter allows safe sound levels to pass through so routine speech and ambient sounds remain audible. Available in Black, Clear, or Orange in Medium, sold as a single pair or in a 25-pair bulk pack.\u003c\/p\u003e\n\n\u003ch2\u003eFiltered Protection Without Cutting You Off\u003c\/h2\u003e\n\u003cp\u003eThe EP4's proprietary noise-reducing filter attenuates sounds above 85 dB (the threshold associated with noise-induced hearing loss), while lower-level sounds at safe volumes continue to pass into the ear canal. For range use, industrial environments, or any setting where a wearer needs to hear commands, radio traffic, or approaching hazards, that distinction matters. Full-block earplugs solve the noise problem by eliminating all sound; the EP4 solves it without that trade-off.\u003c\/p\u003e\n\n\u003ch2\u003eCloseable Caps for Variable Environments\u003c\/h2\u003e\n\u003cp\u003eAttached filter caps are included and can be inserted when ambient hearing is no longer a priority: during sustained high-noise exposure on a flight, for example, or in a loud mechanical environment where conversation is not needed. Because the caps are attached rather than separate, they stay with the earplug and are not a loose item to track or lose. Switching between open-filter and capped modes requires no tools and no replacement parts.\u003c\/p\u003e\n\n\u003ch2\u003eAll-Day Fit in a Reusable Build\u003c\/h2\u003e\n\u003cp\u003eThe triple-flanged stem is molded from a soft, hypoallergenic polymer designed for extended wear without irritation. The same material contributes to durability: with appropriate care, a single pair is rated for up to six months of use. For organizations issuing earplugs to multiple personnel, the 25-pair bulk pack provides the same earplug at a per-unit scale without a change in specification.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePatented triple-flanged stem:\u003c\/strong\u003e creates a secure, consistent seal across the ear canal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24 dB NRR:\u003c\/strong\u003e rated Noise Reduction Rating per the triple-flanged design\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProprietary noise-reducing filter:\u003c\/strong\u003e attenuates sounds above 85 dB while passing safe-level audio\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAttached filter caps:\u003c\/strong\u003e insertable for full-block mode; remain connected to the earplug when not in use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHypoallergenic polymer construction:\u003c\/strong\u003e soft, durable material rated for up to 6+ months of use depending on care\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eDetail\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBrand\u003c\/td\u003e\n      \u003ctd\u003eSureFire\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eModel\u003c\/td\u003e\n      \u003ctd\u003eEP4 Sonic Defenders Plus\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNoise Reduction Rating (NRR)\u003c\/td\u003e\n      \u003ctd\u003e24 dB\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eAttenuation threshold\u003c\/td\u003e\n      \u003ctd\u003eSounds above 85 dB reduced; safe levels pass through\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMaterial\u003c\/td\u003e\n      \u003ctd\u003eSoft, hypoallergenic polymer\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSize\u003c\/td\u003e\n      \u003ctd\u003eMedium\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eColors available\u003c\/td\u003e\n      \u003ctd\u003eBlack, Clear, Orange\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePack options\u003c\/td\u003e\n      \u003ctd\u003e1 Pair \/ 25 Pairs (bulk)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eIncluded accessories\u003c\/td\u003e\n      \u003ctd\u003eAttached filter caps\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRated service life\u003c\/td\u003e\n      \u003ctd\u003eUp to 6+ months (depending on usage and care)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWeight (1 pair)\u003c\/td\u003e\n      \u003ctd\u003e0.09 lb\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWeight (25-pair bulk)\u003c\/td\u003e\n      \u003ctd\u003e1.09 lb\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWho This Is For and Isn't\u003c\/h2\u003e\n\u003cp class=\"product-fit-yes\"\u003eThe EP4 Sonic Defenders Plus suit shooters, range officers, law enforcement, security personnel, and industrial workers who need consistent hearing protection in environments where situational awareness (hearing speech, commands, or ambient cues) must be maintained alongside noise attenuation. The 25-pair bulk pack is suited to unit or organizational procurement.\u003c\/p\u003e\n\u003cp class=\"product-fit-no\"\u003eThe EP4 Sonic Defenders Plus are available in Medium only and are not suited to wearers who require a different size fit. They are passive filtered earplugs, not electronic hearing protection, and do not amplify low-level sounds; they pass safe-level sounds passively. The filter caps provide additional attenuation in closed mode but do not convert the EP4 into a communication headset or provide active noise cancellation.\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003ch3 class=\"product-faq-q\"\u003eWhat does the 24 dB NRR mean in practice?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe SureFire EP4 Sonic Defenders Plus carry a Noise Reduction Rating of 24 dB, a standardized measure of how much sound energy the earplug attenuates when worn correctly. Sounds above 85 dB (the level associated with noise-induced hearing loss) are reduced by the proprietary filter, while sounds at safe volumes continue to pass through the open filter into the ear canal.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-q\"\u003eWhen should I use the filter caps, and when should I leave them open?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe EP4 Sonic Defenders Plus are designed to be worn open-filter in environments where hearing speech, commands, or ambient sounds matters, such as ranges, tactical operations, or industrial work floors. The attached filter caps can be inserted to block lower-level noise when ambient awareness is not needed, such as during sustained loud exposure where conversation is not required.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-q\"\u003eHow long do the EP4 earplugs last, and are they reusable?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe SureFire EP4 Sonic Defenders Plus are reusable earplugs rated for up to six or more months of service life, depending on how frequently they are worn and how they are cared for. The hypoallergenic polymer construction is designed to resist degradation over extended use.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-q\"\u003eAre these earplugs safe for people with sensitive skin or allergies?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe SureFire EP4 Sonic Defenders Plus are molded from a soft, hypoallergenic polymer, making them suitable for extended wear by individuals with skin sensitivities. The material is designed for all-day comfort without irritation.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-q\"\u003eWhat size and color options are available?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe SureFire EP4 Sonic Defenders Plus are available in Medium in Black, Clear, or Orange. They are sold as a single pair or in a 25-pair bulk pack. No other sizes are currently listed for this model.\u003c\/p\u003e","brand":"SureFire","offers":[{"title":"Black \/ Medium \/ 1 Pair","offer_id":67031079879027,"sku":"KRC-SF-EP4-BK-MPR","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Clear \/ Medium \/ 1 Pair","offer_id":67031079911795,"sku":"KRC-SF-EP4-MPR","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ Medium \/ 25 Pairs","offer_id":67031079944563,"sku":"KRC-SF-EP4-BK-MPR-BULK","price":474.99,"currency_code":"USD","in_stock":true},{"title":"Orange \/ Medium \/ 1 Pair","offer_id":67031079977331,"sku":"KRC-SF-EP4-OR-MPR","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1926\/7025\/files\/sf-ep4_1.png?v=1791003300","url":"https:\/\/bulletproofzone.com\/products\/surefire-ep4-sonic-defenders-plus-filtered-earplugs","provider":"Bulletproof Zone","version":"1.0","type":"link"}