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NoizeBarrier® Micro

OTTO’s NoizeBarrier® Micro high-definition and rechargeable electronic earplugs offer unsurpassed situational awareness and clear communication, while providing hearing protection from loud noises. The dual-mode NoizeBarrier® earplugs offer active hearing protection as well as hearing enhancement for extremely effective sound localization and detection.

Looking for a large quantity or custom order? Please email to request more information.



  • 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
  • One-button touch pad, 2-mode operation
  • Rechargeable with up to 16 hours of continuous use
  • Earpiece and case IP67 water resistant
  • Charging status LCD panel
  • 18 month warranty

NRR:  28 dB (Foam Tips); 23 dB (3-Flange Tips)

Frequency Response:  40Hz - 16kHz

Transducers:  Balanced armature receivers (speakers), Wide bandwidth, low-noise MEMS microphones

Battery Performance:

  Earplugs:  Up to 16 hours

  Charge Station:  20 earplug charge cycles


SNR: 35 dB (Foam Tips); 31 dB (3-Flange Tips)

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