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OTTO’s NoizeBarrier® Micro high-definition and rechargeable electronic earplugs offer unsurpassed situational awareness and clear communication, while providing hearing protection from loud noises.


Up to 40 dB of impulse noise protection

Up to 15 dB adaptive noise attenuation

Hearing enhancement mode – amplifies soft sounds up to 5X

Natural hearing for safe sounds

Accu-Technology® high-definition sound quality

One-button touch pad, 2-mode operation

Earpiece and case IP67 water resistant


The dual-mode NoizeBarrier earplugs offer active hearing protection as well as hearing enhancement for extremely effective sound localization and detection. The earplugs are rechargeable with up to 16 hours of continuous use and include a 1-year warranty.