It is easy to wear without rubbing. Smooth surface design can reduce earplug diameter, so that could match long time wear. The rapid insertion of the ear canal provides excellent protection, don't have to wait for the earplugs to pop up. Unique noise reduction effect, in excellent noise barrier, it's more natural to hear human voices. Range of application: Wear anti-noise earplugs wherever possible to damage our hearing.
1. Material: foam cotton. 2. SNR: 37dB. 3. NRR: 32dB.
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