SKU: 36256299467

Studson Universal Ear Defender

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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12

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Description

Studson Universal Ear DefenderSTUDSON Universal Ear Defender ED 3B Designed for high noise environments, the STUDSON Universal Ear Defender (ED 3B) delivers reliable, helmet mounted hearing protection without compromising comfort or mobility. Built to integrate directly with most industrial safety helmets, this system eliminates the need for a separate headbandkeeping your gear streamlined and jobsite ready. With a Noise Reduction Rating (NRR) of 26 dB, these passive ear defenders

STUDSON Universal Ear Defender – ED-3B

Designed for high-noise environments, the STUDSON Universal Ear Defender (ED-3B) delivers reliable, helmet-mounted hearing protection without compromising comfort or mobility. Built to integrate directly with most industrial safety helmets, this system eliminates the need for a separate headband—keeping your gear streamlined and jobsite-ready.

With a Noise Reduction Rating (NRR) of 26 dB, these passive ear defenders help reduce exposure to harmful noise levels while maintaining situational awareness. The three-position arm system allows you to quickly switch between active protection, standby, and parked positions—all without removing your helmet. Lightweight, durable, and dielectric, the ED-3B is built for all-day performance in demanding environments.


Key Features

  • NRR 26 dB protection – Reduces exposure to hazardous noise levels on the jobsite
  • Universal helmet compatibility – Fits most Type I & Type II helmets with a 30mm slot mount
  • 3-position arm system – Switch between working, standby, and parked positions without removing helmet
  • Dielectric construction – Non-conductive design ideal for electrical environments
  • Lightweight design – Balanced at ~248g to reduce fatigue during extended wear
  • Durable ABS ear cups – Impact- and UV-resistant for long-term reliability
  • Comfort seal cushions – Polyether foam with PVC backing creates a consistent acoustic seal
  • Stable, pivoting fit – Maintains ear contact during movement and overhead work
  • ANSI & EN compliant – Meets ANSI S3.19 and EN 352-3 safety standards
  • Complete kit included – Comes with ear defenders and mounting adapters for quick setup
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 36256299467

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Ryan F
Natrona Heights, US
★★★★★ 5
Great Book
Format: Hardcover
Great book
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Reviewed in the United States on July 2, 2025
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Amazon Customer
Omaha, US
★★★★★ 5
Great read. Tons of info.
Format: Hardcover
We really like this book. A great background and detailed info on this topic. Really like the real-world examples and application. Pretty exhaustive, as far as that is possible given the topic. Also, quite easy to read, although I confess that if from an engineer's perspective.
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Reviewed in the United States on July 1, 2021
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Dr. Larry Leibrock
Houston, US
★★★★★ 5
This is excellent foundational CyberSec text - Well Done
Format: Hardcover
This is well written and wide ranging text. Foundational materials
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Reviewed in the United States on December 5, 2022
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flrover
Fort Morgan, US
★★★★★ 4
New but Gashed
Format: Hardcover
Despite the deep gash on the spine of the book that was listed as "new", it is in brand new condition. Shipping was fast.
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Reviewed in the United States on August 19, 2022
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slawa
Whiting, US
★★★★★ 5
Must have
Format: Hardcover
I am buying every edition to support this great book.
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Reviewed in the United States on March 10, 2021

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