Otto Engineering V4-11032EFD

 Download Free Materials:

---

  

Otto-NoizeBarrier-TAC-brochure.pdf (2478.58 KB)

  

Otto-NoizeBarrier-TAC-headset-technical-manual.pdf (1060.89 KB)

 Item Details:

---



Otto NoizeBarrier® TAC Ear Muffs

Otto NoizeBarrier® TAC Ear Muffs are full-size (circumaural) active hearing protection designed for professional use in high-noise environments, combining effective noise attenuation with clear communication and situational awareness.

The headset incorporates advanced digital signal processing to automatically suppress hazardous impulse sounds while enhancing low-level ambient audio. This allows the user to maintain awareness of surrounding activity without compromising hearing safety. The system reacts in real time to sudden noise peaks, making it suitable for dynamic environments.

Built for reliability and long-term use, the headset features a durable construction, reinforced components, and an ergonomic design that ensures a secure and comfortable fit over extended periods. The circumaural ear cups fully enclose the ears, providing consistent passive noise reduction in addition to active protection.

Key Features:

Type: Circumaural (over-ear)

Active noise reduction (ANR)

Ambient sound amplification

Fast response to impulse noise

Ergonomic headband design

Soft ear cushions for extended wear

Durable, professional-grade construction

Microphone:

Noise-canceling boom microphone with active wind and noise reduction

Flexible, adjustable boom for optimal positioning

Reversible design - can be mounted on either left or right ear cup

Available in dynamic or electret configurations depending on model

Designed for clear communication in high-noise environments

Connectivity & Cables:

Supports removable downlead cables on compatible models

Allows use with single or dual communication systems (PTT / radio)

Easy cable replacement or upgrade depending on configuration

Additional Information:

Compatible with protective and tactical gear

Designed for long-term comfort

Balances hearing protection with environmental awareness

Suitable for integration with various communication platforms

Specifications:

Noise Reduction Rating (NRR):	23 dB (per ANSI S3.19 1974)
Single Number Rating (SNR):	≈30 dB (EN 352 1:2020 classification)
Frequency Attenuation (NRR):	125 Hz: ~18.8 dB, 250 Hz: ~18 dB, 500 Hz: ~25 dB, 1000 Hz: ~32.5 dB, 2000 Hz: ~31 dB, 4000 Hz: ~41.7 dB, 6300 Hz: ~42.8 dB, 8000 Hz: ~40 dB (mean attenuation)
Microphone Sensitivity:	-75 dB @ 94 dB SPL (noise-canceling boom mic)
Battery / Power:	2 × AAA (alkaline or lithium; up to ~72–100 hrs runtime)
Operating Range:	‑40 °C to +71 °C
Water & Dust Resistance:	IP68 (immersion up to 1 m for 31 min)
Military Standards:	Meets MIL STD 810G
Cable Pull Strength:	40 lbs axial (earcup cable pull)
Headset Weight (approx.):	~453 g (16 oz) without batteries
Standards & Compliance:	ANSI S3.19, EN 352 1/4/6:2020, PPE Regulation 2016/425, TAA, BAA, Berry Amendment

 Similar or Related Products:

---

 Manufacturer's Catalogs and Guides:

---

OTTO Communications specializes in accessories for the two-way radio market including surveillance kits, wireless accessories, lightweight and heavy-duty headsets, speaker microphones, tactical, fire & HAZMAT communications equipment.

OTTO accessories are designed for use by public safety, security, surveillance, emergency medical teams, SWAT, fire fighters, HAZMAT and other law enforcement professionals along with food service, hospitality, entertainment, construction and industrial markets. OTTO Communications supports a wide range of radio platforms providing accessories for most major two-way radios.

Made in U.S.A. - Premium Quality.