---
product_id: 255305445
title: "EP4 Sonic Defender Earplug"
brand: "surefire"
price: "A$72"
currency: AUD
in_stock: true
reviews_count: 6
category: "Surefire"
url: https://www.desertcart.com.au/products/255305445-ep4-sonic-defender-earplug
store_origin: AU
region: Australia
---

# Low-profile design fits with helmets & masks 24dB Noise Reduction Rating Patented EarLock retention rings for secure fit EP4 Sonic Defender Earplug

**Brand:** surefire
**Price:** A$72
**Availability:** ✅ In Stock

## Summary

> 🔕 Protect your peace without missing a beat.

## Quick Answers

- **What is this?** EP4 Sonic Defender Earplug by surefire
- **How much does it cost?** A$72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/255305445-ep4-sonic-defender-earplug)

## Best For

- surefire enthusiasts

## Why This Product

- Trusted surefire brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Integration:** Low-profile design fits effortlessly under helmets, masks, hats, and headsets—stay protected without compromise.
- • **Lock-In Fit Technology:** Patented EarLock rings provide consistent, reliable placement every time you wear them.
- • **Durable & Hypoallergenic:** Made in the USA from medical-grade polymer for long-lasting use and skin-friendly comfort.
- • **All-Day Comfort, All-Day Wear:** Soft, hypoallergenic triple-flanged stems ensure a secure, comfortable seal without irritation.
- • **Hear Clearly, Protect Confidently:** Advanced filters block harmful noise while preserving conversations and ambient sounds.

## Overview

SureFire EP4 Sonic Defender Earplugs deliver a 24dB Noise Reduction Rating with innovative filter caps that block harmful noise while allowing safe sound levels to pass through. Designed with soft, adjustable triple-flanged stems and patented EarLock retention rings, they provide a secure, comfortable fit all day long. Their low-profile design fits seamlessly under helmets, masks, and headsets, making them ideal for professionals who demand both protection and situational awareness. Made in the USA from hypoallergenic, medical-grade polymer, these earplugs combine durability with premium comfort.

## Description

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.

Review: فترة توصيل طويله-يثبت في الاذن ولكن لا يناسب اذن الاطفال . كوالتي عالي
Review: Klein Passen gut ins Ohr und Machen entweder komplett dicht oder nur Halb dich wenn man sie Offen Trackt. sehr bequem Und tun ihren Job und schützen sehr gut das Trommelfell vor Lauten Geräuschen und Knall Geräuschen

## Features

- 24dB Noise Reduction Rating (NRR) with filter caps inserted, Hear safe sound levels (with filter caps out) as if you weren't wearing ear plugs
- Soft, adjustable, triple-flanged stems provide secure seals in ear canals and all-day comfort
- Low-profile design allows you to keep them in place while wearing a mask, helmet, hat, or while using supplemental hearing muffs
- Patented EarLock retention rings utilize seven contact points to lock earpieces in place and fit the same way every time
- Made in USA from hypoallergenic, medical-grade polymer that's soft, durable, and long-lasting

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004DH65RI |
| Action | add |
| Batteries Included? | No |
| Best Sellers Rank | #36,589 in Sporting Goods ( See Top 100 in Sporting Goods ) #2 in Shooting Eyewear & Hearing Protection #104 in Swimming Earplugs |
| Brand | SUREFIRE |
| Color | Black |
| Customer Reviews | 4.3 4.3 out of 5 stars (6,225) |
| Date First Available | 8 August 2012 |
| Department | unisex-adult |
| Height | 3 inches |
| Included Components | Surefire Sonic Dfndr+ Md Blk 1 Pair |
| Is Discontinued By Manufacturer | No |
| Item model number | EP4-BK-MPR |
| Length | 3 inches |
| Manufacturer | SureFire |
| Material Type | Plastic |
| Number of Items | 2 |
| Number of Pieces | 2 |
| Outer Material | 1 |
| Product Dimensions | 10.8 x 2.54 x 12.7 cm; 28.35 g |
| Size | 1 Count (Pack of 1) |
| Sport | Hunting |
| Style | Medium |
| Usage | Noise Protection |
| Weight | 0.01 Pounds |
| Width | 2 inches |

## Product Details

- **Brand:** SUREFIRE
- **Colour:** Black
- **Material:** Plastic
- **Recommended uses for product:** Noise Protection
- **Size:** 1 Count (Pack of 1)

## Images

![EP4 Sonic Defender Earplug - Image 1](https://m.media-amazon.com/images/I/61ws1+5qpaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by F***A on 30 May 2020*

فترة توصيل طويله-يثبت في الاذن ولكن لا يناسب اذن الاطفال . كوالتي عالي

### ⭐⭐⭐⭐⭐ Review
*by T***. on 29 December 2020*

Klein Passen gut ins Ohr und Machen entweder komplett dicht oder nur Halb dich wenn man sie Offen Trackt. sehr bequem Und tun ihren Job und schützen sehr gut das Trommelfell vor Lauten Geräuschen und Knall Geräuschen

### ⭐⭐⭐⭐⭐ Review
*by S***O on 6 October 2025*

il meglio se si vogliono dei tappi da lavoro che vanno indossati spesso. calzano molto bene nell’orecchio e sono eccezionali contro i rumori forti, se si vuole ascoltare il collega o una qualsiasi cosa, basta aprire il tappino rosso e il rumore passa (sempre e comunque attutito). costosi ma eseguono il loro egregiamente. [se siete militari ve li consiglio siccome se prendete il cavo che si adatta alla prr con l’uscita non in cuffia ma con l’auricolare, questi sono compatibili, un filo scomodo sull’orecchio che usate per ascoltare le comunicazioni siccome vi esce un filo fuori dal padiglione auricolare siccome il cavo vi tira il tappo verso il basso, ma nulla di preoccupante, comunque una alternativa consigliata a quella cuffiettina schifosa della naja]

## Frequently Bought Together

- SureFire EP4 Sonic Defenders Plus filtered Earplugs, triple flanged design, reusable, Black, Medium
- Walker's Razor Slim Ultra Low Profile Compact Design Adjustable Range Shooting Hunting Hearing Protection Electronic Earmuffs
- SureFire EP7 Sonic Defenders Ultra filtered Earplugs w/ Comply Canal Tips, reusable

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.au/products/255305445-ep4-sonic-defender-earplug](https://www.desertcart.com.au/products/255305445-ep4-sonic-defender-earplug)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-17*