Pro Ears Ultra 33 Electronic Ear Muffs — NRR 33, PE-33

Read the full Pro Ears Ultra 33 Electronic Ear Muffs review →

The Pro Ears Ultra 33 (PE-33) is an electronic hearing protector rated NRR 33 dB to ANSI S3.19 — the highest rating among these electronic muffs — using microphones and speakers to amplify low-level ambient sound while automatically compressing impulse noise above roughly 82 dB. It pairs maximum electronic attenuation with the awareness to hear commands and conversation between loud events.

CHECK PRICE ON AMAZON → SHOP ELECTRONIC EAR MUFFS →

As an Amazon Associate, WC Safety earns from qualifying purchases.

Why the Pro Ears Ultra 33 leads on attenuation

When the noise is loud enough that you want the most protection an electronic muff can give, the Ultra 33 is the answer here: NRR 33 to ANSI S3.19, the top of this electronic lineup. It still does the electronic job — microphones amplify low-level ambient sound for awareness, and the electronics compress impulse noise above about 82 dB the instant it arrives — so you get maximum blocking without going deaf to range commands. It is built for high-dBA shooting and industrial work where every decibel counts. As electronic ear muffs go, this is the maximum-attenuation pick, and the electronic vs passive guide and shooting muffs guide explain the trade-offs. It is protection with a ceiling few electronic muffs reach.

What the Pro Ears Ultra 33 listing documents

From the published specs: an electronic design with ambient amplification; NRR 33 dB to ANSI S3.19, the highest here; automatic impulse suppression above roughly 82 dB; and OSHA 29 CFR 1910.95 compliance. These are true electronic earmuffs and genuine nrr 33 earmuffs — maximum-attenuation shooting ear protection for loud work.

How the Pro Ears Ultra 33 compares to other ear muffs

For other high-NRR electronic muffs, the Howard Leight Impact Pro (NRR 30) or Walker's Ultimate Power Muff; for slimmer electronic options, the Impact Sport (NRR 22) or Peltor Sport Tactical 300; and for maximum passive protection, the NRR 27 Pyramex PM3010 or Moldex MX-6. The construction muffs guide compares picks.

Choosing the right hearing protection for your noise

Muffs, plugs, and doubling up all have a place. For the full range, the hearing protection collection and best hearing protection guide; for shooting, the shooting hearing collection and noise-canceling headsets; for in-ear options, the foam ear plugs collection and plugs-vs-muffs guide; and for the loudest work, the highest-NRR guide and NRR 33 plugs.

Where it fits by job and crew orders

The Ultra 33 suits high-noise shooters, hunters, and industrial workers who want maximum electronic attenuation with awareness — browse more in the 3M ear muffs collection and passive muffs guide for comparison. Match the high rating to genuinely loud exposure rather than over-isolating in moderate noise, and keep fresh batteries on hand. For crew orders, quantity purchasing runs through a free Amazon Business account — volume pricing, PO numbers at checkout, and tax-exempt eligibility for qualifying organizations, with the walkthrough linked in our footer.