The SureFire EarPro Sonic Defender Plus Ear Plug Medium EP4-BK-MPR is a pair of reusable, filtered flanged earplugs designed for hearing protection in noisy environments while still allowing you to hear normal conversations and safe-level sounds.
Key Features and Specs
- Noise Reduction Rating (NRR): 24 dB with the attached filter caps (stoppers) inserted. Without the caps, it provides lower-level protection (around 12 dB in some descriptions) and lets safe sounds pass through via the proprietary filter, while attenuating loud impulses above ~85 dB.
- Design: Patented triple-flanged stem for a secure fit in larger ear canals. Made from soft, durable, hypoallergenic medical-grade polymer for all-day comfort and reusability (typically lasts 6+ months with proper care).
- Filter System: Open mode allows awareness of surroundings (conversations, ambient sounds). Close the caps for maximum blocking (e.g., airplanes, sleep, or extreme noise).
- Accessories: Includes a removable polymer lanyard/cord (~26" long) and a carry case. Compatible with many radio communication systems.
- Sizes: Available in Small, Medium, and Large. Medium (this model) fits most users based on the concha bowl size (roughly 1 inch top-to-bottom measurement). Black color (BK); other colors like Clear or Orange exist for different models.
