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Questions & Answers
Are they waterproof?

They are ip67, NOT 68. They are rated for water immersion less than one meter for less than 30 min.

by Mike, Verified Owner, November 26, 2021
Are these intrinsically safe? Expert Answer

The OTTO Engineering NoizeBarrier Micro are not listed as being intrinsically safe by the manufacturer.

by Hunter, Gear Expert, February 10, 2023
Customer Reviews
Expert Review
Worth every penny by Matt S., Gear Expert, November 12, 2019
I usually run Silynx Clarus Pro but wanted to try something wireless and these caught my attention. These did not disappoint. Both the earbuds and the case are compact, high quality, durable, simple, and highly effective. The earbuds are comfortabl...
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24/25 found this helpful
Helpful Positive Review Joseph W. M by JW, Verified Owner, October 4, 2024
Best sound protection out there… BUT!!! Be warned. Otto can not and will not repair the ear buds when the battery dies after 1-2 years of use. Their solution? You buy entirely new ear buds at $150 per unit. Not sure why they can not swap out a n...
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5/5 found this helpful
Helpful Positive Review Display fails by Ryan, Verified Owner, May 29, 2023
I've had this unit about 3 years now and the display failed. They work otherwise, but I have no idea the rate of charge for the battery in the case or the units themselves. Make sure you get extra ear buds that are the proper size for your ears. Woul...
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2/2 found this helpful
Helpful Positive Review Great hearing protection with some limitations by Frank, Verified Owner, April 4, 2024
I just started using the Otto NoizeBarrier Micros at a USPSA match. Right out of the box they worked well, but I didn't care for how the clear rubber tipped ear plugs fit. I change over to some Comply(3rd party)Foam ear plugs and that worked much...
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1/1 found this helpful
Helpful Positive Review Updated review by Burly, Verified Owner, August 6, 2022
Switch covers were falling apart after 18 months. These were too expensive to buy every 18 months. Even though the ear buds were out of warranty Otto made it right and replaced my ear protection. I will buy again.
12/12 found this helpful
Helpful Positive Review WOW Exceeded Expectations by TC, August 13, 2019
All I can say is WOW. I am amazed every time I put these in just how effective they are. The noise reduction of the snap and pop at the range with ability to still hear and carry a conversation clearly is nothing short of amazing. I am able to hea...
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13/14 found this helpful
Read All 61 Reviews
NRR: 28 dBQuantity: 1 Size: Micro Color: Black Included Accessories: Charging Case Condition: New

Code: 3RI-EP-OTENM1-V4-11029

MPN: V4-11029

UPC: 737488048100

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Product Info for OTTO Engineering NoizeBarrier Micro

OTTOs 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.image

Specifications for OTTO Engineering NoizeBarrier Micro:

Manufacturer: OTTO Engineering
NRR: 28 dB
Quantity: 1
Size: Micro
Color: Black
Included Accessories: Charging Case
Condition: New
Battery Life: 16 hours
Water Resistance Level: IP67
Headphone Style: In Ear
Gender: Unisex

Features of OTTO Engineering NoizeBarrier Micro

  • 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
  • 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
  • Earpiece and case IP67 water resistant
  • Charging status LCD panel
  • 1-year warranty

Package Contents:

  • OTTO Engineering NoizeBarrier Micro
  • Contained within

OTTO Engineering NoizeBarrier Micro Orderable Models

List of Orderable Models

OTTO Engineering NoizeBarrier Micro, Black, V4-11029 , MPN: V4-11029 , UPC: 737488048100 , Code: 3RI-EP-OTENM1-V4-11029

OTTO Engineering NoizeBarrier Micro Unavailable & Discontinued Models

List of Unorderable Models

DEMO, OTTO Engineering NoizeBarrier Micro, Black, V4-11029 , MPN: V4-11029-DEMO , Code: 3RI-EP-OTENM1-V4-11029-DEMO
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