Featured Product

NoizeBarrierâ„¢ Micro: High-Definition Electronic Earplugs
October 1, 2018

OTTO’s NoizeBarrier™ Micro electronic earplugs offer unsurpassed situational awareness and clear communication while providing hearing protection from loud noises. The dual-mode NoizeBarrier™

Micro earplugs offer active hearing protection as well as hearing enhancement for extremely effective sound localization and detection. The noise-isolating eartips combined with proprietary sound processing electronics produces an earplug that responds to your environment. In standard mode the ear plugs provide active situational awareness when sound levels are safe. The earplugs provide a higher level of hearing protection (up to 15 dB) when there is sustained loud noise. With a simple press on the touch pad, the user activates enhanced hearing mode which provides 5X amplification of soft sounds.

In either standard or enhanced hearing mode the earplugs provide maximum protection (up to 40 dB) from loud impulse noises.


• Up to 40 dB of impulse noise protection

• Up to 15 dB of adaptive noise reduction

• Hearing enhancement mode – amplifies soft sounds up to 5X

• Rechargeable with up to 16 hours of continuous use

• Natural hearing for safe sounds

• Accu-Technology® high-definition sound quality

• One-button touch pad, 2-mode operation

• Earplugs are IP67 waterproof

• Storage case displays charging status

• Integrated windscreen to suppress noise

• 1-year warranty


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

Frequency Response: 40Hz-16kHz

Transducers: Balanced armature speakers

          Wide bandwidth, low-noise MEMS microphones

Battery Performance:

Earplugs: Up to 16 hours of active use

Charge Station: 20 earplug charge cycles from fully charged case



March 2023

27 - 30
International Wireless Communications Expo (IWCE) 2023
Las Vegas

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