Where are these manufactured?

I’m pretty sure these are made in the plant down the street from me. Check their website. Otto Engineering of Carpentersville Illinois.

Can volume be adjusted for each ear

Yes, but there are only TWO settings... and it’s not as good on sound canceling / reduction when firing weapons as a standard peltor or similar ear pro device.

Is it possible to replace the rechargable batteries as they age, or you have to buy another set? (and if not replaceable, approx. how many charges?)

Not replaceable. You would have to buy another set

Anyone use these for loud music, or concerts?

I’ve use these for figure eight derbies and they were great but they’re not a license Dealer and they will not honor the one-year warranty

Otto Engineering Noizebarrier Micro Black V4 11029

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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Description

🔊 Hear everything, miss nothing — the pro’s choice in stealthy hearing protection.

ALL DAY POWER - Long-lasting lithium-ion batteries keep you charged through extended sessions with 90% power even after hundreds of shots.
BIONIC HEARING MODE - Amplifies soft sounds up to 5X with natural clarity, so you never miss a conversation or critical ambient cue.
ELITE NOISE DEFENSE - Blocks up to 40 dB of impulse noise for ultimate hearing protection during shooting or loud environments.
DUAL MODE SIMPLICITY - One-button control toggles between two optimized sound profiles—effortless, no-fuss operation.
SLEEK DISCREET COMFORT - Ultra-compact in-ear design fits comfortably under any headgear—no bulky muffs, no distractions.

The OTTO Engineering NoizeBarrier Micro V4-11029 is a premium in-ear hearing protector designed for shooters and outdoor enthusiasts. It delivers up to 40 dB impulse noise reduction, adaptive noise attenuation, and a hearing enhancement mode that amplifies soft sounds up to 5 times with natural, high-definition sound quality. Featuring a compact, comfortable design with balanced armature transducers and simple one-button operation, it offers reliable, all-day battery life and superior sound clarity without bulky earmuffs. Trusted by professionals for its durability and performance, it’s the ultimate blend of safety and situational awareness.

Specifications

ASIN	B07SSDDND1
ASIN	B07SSDDND1
Batteries	2 Lithium Ion batteries required. (included)
Best Sellers Rank	298,306 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 3,165 in Ear Plugs
Brand Name	OTTO Engineering
Colour	Black
Customer Reviews	4.4 4.4 out of 5 stars (213)
Customer reviews	4.4 4.4 out of 5 stars (213)
Department	unisex-adult
Global Trade Identification Number	00737488048100
Item Dimensions	13.5 x 13.2 x 6.4 centimetres
Item Form	Pair
Item Weight	340 g
Item model number	V4-11029
Manufacturer	OTTO Engineering
Manufacturer	OTTO Engineering
Manufacturer Part Number	V4-11029
Material Type	Thermoplastic Elastomer or Silicone
Model Name	NoizeBarrier Micro
Model Number	V4-11029
Noise Attenuation	40 dB
Noise Reduction Rating (NRR)	15 Decibels
Number of Items	1
Number of Pieces	2
Product Dimensions	13.46 x 13.21 x 6.35 cm; 340.19 g
Product Style	Uncorded
Recommended Uses For Product	Noise Protection
Reusability	Partially Reusable
Single Number Rating (SNR)	15 Decibels
Size	1 count (Pack of 1)
Specific Uses For Product	Noise Protection
UPC	737488048100
Unit Count	1 count

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