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

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OTTO Engineering NoizeBarrier Micro, Black, V4-11029

Product ID: 167694201

Details

Brand
OTTO
Color
Blk
Material
Plastic
Recommended Uses For Product
Noise
Size
1 Count (Pack

🎧15 dB adaptive noise attenuation

🔇40 dB impulse noise block

🔊5X soft sound amplification

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13172 DH

Duties & taxes included

In stock

Sold byAmazon MoroccoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔕 Hear More, Fear Less: The Future of Hearing Protection is Here

ALL DAY POWER - Rechargeable with up to 16 hours of continuous use—stay connected without interruption.
AMPLIFY THE SUBTLE - Hearing enhancement mode boosts soft sounds by 5X without compromising safety.
EFFORTLESS CONTROL - One-button touchpad toggles between protection and enhancement modes seamlessly.
ULTIMATE NOISE DEFENSE - Blocks up to 40 dB of sudden loud noises for unmatched hearing protection.
SMART ADAPTIVE ATTENUATION - Automatically adjusts noise reduction up to 15 dB for sustained loud environments.

The OTTO Engineering NoizeBarrier Micro V4-11029 is a cutting-edge rechargeable electronic earplug designed for professionals who demand superior hearing protection and situational awareness. It delivers up to 40 dB impulse noise reduction, adaptive attenuation up to 15 dB, and a hearing enhancement mode that amplifies soft sounds by 5X. Featuring a sleek one-button touchpad and high-definition sound quality, these earplugs offer up to 16 hours of battery life, making them ideal for all-day use in noisy environments.

Specifications

ASIN	B07SSDDND1
ASIN	B07SSDDND1
Batteries	2 Lithium Ion batteries required. (included)
Best Sellers Rank	#117,239 in Health & Household ( See Top 100 in Health & Household ) #459 in Earplugs
Brand Name	OTTO Engineering
Color	Blk
Customer Reviews	4.5 4.5 out of 5 stars (250)
Date First Available	May 30, 2019
Department	unisex-adult
Global Trade Identification Number	00737488048100
Item Dimensions	5.3 x 5.2 x 2.5 inches
Item Form	Pair
Item Weight	0.75 Pounds
Item model number	V4-11029
Manufacturer	Otto
Manufacturer	Otto
Manufacturer Part Number	V4-11029
Material Type	Plastic, Silicone
Model Name	V4-11029
Model Number	V4-11029
Noise Attenuation	15 dB
Noise Reduction Rating (NRR)	28 Decibels
Number of Items	1
Number of Pieces	2
Package Size Name	Pack of 2
Product Dimensions	5.3 x 5.2 x 2.5 inches; 12 ounces
Product Style	Uncorded
Recommended Uses For Product	Noise Protection
Reusability	Partially Reusable
Single Number Rating (SNR)	15 Decibels
Size	1 Count (Pack of 1)
UPC	737488048100
Unit Count	1 Count
Warranty Description	1-year warranty

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