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Protect Your Hearing Without Blocking All Sound
EP4 Sonic Defenders Plus protects your hearing without interfering with your ability to hear routine sounds or conversations. Their triple-flange stem design fits larger ear canals and provides a Noise Reduction Rating (NRR) of 24dB.
The sizes (small, medium, and large) refer only to the outer earpieces that fit in the ear's concha bowl and help hold the EP4 in place. Proper EP4 size is based on the dimensions of your ear's concha bowl.Medium fits most people.
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