Impact Sport Camo Review: The Same NRR 22 in a Camo Shell

Impact Sport Camo Review: The Same NRR 22 in a Camo Shell — the short answer

Short answer: this impact sport camo review covers the R-02527 at a passive NRR of 22 - the same platform and the same rating as the standard Impact Sport, in a camo shell, which is worth knowing before paying the difference. The reviewed listing is live here; plan the exposure on the derated figure, not on NRR 22. Everything in this family is used under OSHA 29 CFR 1910.95, which means a hearing conservation program once the 85 dBA action level is reached: noise monitoring, a baseline and then annual audiograms, a real choice of protectors at no cost, and annual training.

Is the Howard Leight Impact Sport Camo the Right Electronic Ear Muff for You?

Published June 19, 2026 · Last updated July 27, 2026

Howard Leight R-01526MC Impact Sport Camo Electronic Ear Muffs Review (2026)

The Howard Leight Impact Sport line has been a go-to in the shooting sports community for years, and the R-01526MC Camo variant brings the same NRR 22 dB electronic platform in a MultiCam-style camouflage finish aimed at hunters and outdoors-oriented shooters. This review covers what the specs actually mean, who the earmuff is best suited for, how it stacks against the competition, and where its limits lie — all based on published specifications and ANSI S3.19 / OSHA 29 CFR 1910.95 standards. No inflated claims, no manufacturer talking points.

If you are shopping the wider category first, our Electronic Ear Muffs collection lists every model we have reviewed with NRR ratings side by side. For a deeper dive into how NRR is calculated and what it delivers in practice, the NRR Hearing Protection Guide is the right starting point.

The Impact Sport Camo is an electronic ambient-sound-amplification earmuff: external microphones pick up surrounding sound and replay it through internal speakers at a capped 82 dB output. When an impulse event — a gunshot, a power tool impact — drives input above approximately 82 dB, the electronics compress the signal in milliseconds, then restore ambient amplification once the transient passes. The result is that you can hear range commands and hunting-party conversation at normal volume while gun report is suppressed to a hearing-safe level. That core feature set is exactly what makes electronic earmuffs worth the price premium over passive models for shooters.

Who Should Buy the Howard Leight Impact Sport Camo?

This earmuff is designed for shooters and hunters who need situational awareness alongside ANSI-rated hearing protection. The camo finish and low-profile cups specifically target hunters who shoulder rifles and need the muff to clear a stock cleanly. It is also a practical choice for occasional range shooters who want electronic amplification without paying for Bluetooth or active noise cancellation features they won't use. For workers in continuous industrial noise, it provides NRR 22 attenuation but lacks the ruggedized casing and extended battery systems designed for full-shift industrial use — check our full Hearing Protection range for industrial-spec alternatives. If you're unsure which protection level your environment demands, our Hearing Conservation Program Guide explains OSHA exposure limits and selection criteria.

Strengths in Detail

NRR 22 dB — Proven Mid-Range Protection

The R-01526MC carries an NRR of 22 dB, tested and certified to ANSI S3.19. Under OSHA's required(NRR − 7) ÷ 2 method method (NRR minus 7, divided by 2), the estimated real-world attenuation is approximately 7.5 dB. That means the muff is appropriate for continuous TWA noise exposures up to roughly 98 dBA — covering handgun, shotgun, and most rifle calibers at indoor and outdoor ranges. Environments louder than 98 dBA TWA require either a higher-NRR device or double protection (earmuffs worn simultaneously with earplugs). Our NRR Hearing Protection Guide walks through the math in full. Compare options across our Ear Muffs collection.

Automatic Impulse Suppression — Hands-Free Protection

The Impact Sport's electronics compress audio input that exceeds approximately 82 dB — the threshold set to capture impulse events like gunshots — and restore ambient amplification once the transient clears. This happens automatically with no manual adjustment. The practical benefit: you do not need to remove the earmuff between shots or shout to relay commands. Gunshot peak pressure at indoor pistol ranges typically measures 140–165 dB SPL; the earmuff's cup attenuation and electronic limiting work together to bring that impulse down to safe levels before it reaches the ear canal. This is the defining feature that separates electronic from passive earmuffs and is the primary reason to pay the price premium. See how this compares to passive models in our Shooting Hearing Protection collection.

Low-Profile Cup Design for Rifle Shooters

One of the most practical engineering details on the Impact Sport line is the slimmed cup profile. A bulky earmuff cup can interfere with a rifle's stock as you bring the gun to your cheek — disrupting your sight picture and forcing an awkward head angle. The Impact Sport's cups are designed to minimize that interference. Hunters mounting a rifle in the field, where shot timing matters and repositioning is not always an option, will appreciate this. It also makes the earmuff more comfortable under a helmet or hard hat brim compared to full-depth passive cups. If you wear glasses, our Best Hearing Protection guide covers seal considerations for spectacle wearers.

ANSI S3.19 Certification and OSHA Compliance

Every NRR value on the U.S. market must be derived from ANSI S3.19 laboratory testing. This is not a manufacturer claim — it is a legal requirement under EPA labeling rules. The Impact Sport Camo carries a valid NRR 22 dB label under that standard, making it an approved hearing protector for OSHA 29 CFR 1910.95 hearing conservation programs. Employers managing a written hearing conservation program can include this device in their approved HPD list. Workers required to wear HPDs under an OSHA action-level trigger (85 dBA TWA or above) can use this device, subject to the employer's noise level assessment and derating calculation. For a full breakdown of employer obligations, our Hearing Conservation Program Guide is the reference. Browse the PPE collection for complementary protective equipment.

Compact Fold-Down Build for Hunting Pack Storage

The Impact Sport Camo folds flat, reducing pack volume when you are hiking to a stand or field position and only need the earmuff for the shot sequence. This is a meaningful practical feature for hunters who cover ground before and after the shooting scenario. Passive earmuffs at similar price points rarely fold as compactly, and in-ear electronic options — while smaller — require more careful storage to protect small components. Compare in-ear options in our Best In-Ear Hearing Protection for Shooting guide if pack size is your primary constraint.

Limitations to Know Before You Buy

NRR 22 dB Has a Ceiling

NRR 22 is a solid mid-tier rating for most shooting scenarios but it is not the highest available. Indoor rifle ranges, high-caliber handgun shooters, and industrial environments above 98 dBA TWA will want to evaluate whether this NRR is sufficient or whether double protection (earmuffs over foam earplugs) is warranted. OSHA's derating rule is conservative precisely because laboratory NRR values are achieved in ideal fit conditions that real-world wear rarely replicates. Our Best Earplugs for Work guide covers double-protection scenarios in detail. The PPE collection includes compatible foam earplugs for use underneath.

No Bluetooth or Audio Streaming

The Impact Sport Camo amplifies ambient sound only. It does not stream music, podcasts, or communication radio audio via Bluetooth. Shooters who want to run range comms through the earmuff or listen to audio during down time between strings will need to look at Bluetooth-equipped models. Howard Leight's own Impact Sport Bluetooth variant addresses this; it carries the same NRR but adds wireless streaming capability. If Bluetooth connectivity matters to you, the Howard Leight Impact Sport Bluetooth is the natural upgrade path within the same series.

AAA Battery Dependency

The earmuff runs on AAA batteries, which are widely available but require you to carry spares in the field and monitor charge. There is no USB-C rechargeable option in this model. For hunters on multi-day trips, battery management becomes a real consideration — especially in cold temperatures, where alkaline battery performance drops measurably. This is a design tradeoff common across the Impact Sport line; premium electronic earmuffs at higher price points often offer rechargeable systems.

No Published Weatherproofing Rating

The camo finish is cosmetic. Howard Leight does not publish an IP or NEMA weatherproofing rating for the Impact Sport Camo, meaning it is not rated for rain exposure or submersion. Hunters using it in wet conditions should exercise caution with the electronics. Light moisture exposure during a hunt is unlikely to cause immediate failure, but it is not an endorsed use case under the published specifications.

How It Compares: Electronic Ear Muff Alternatives

The table below uses specs from product pages and published NRR labels only. All prices are approximate and subject to change.

Compatible Accessories and Pairing Options

For maximum attenuation in high-noise environments, electronic earmuffs can be worn simultaneously with foam earplugs. When doubling, OSHA guidance allows you to add 5 dB to the NRR of the higher-rated device — so the Impact Sport Camo paired with NRR 33 earplugs yields an estimated real-world protection of approximately 12.5 dB (NRR 33 minus 7, divided by 2, plus 5). Our PPE collection includes compatible foam earplugs. Replacement AAA batteries (two required) are available at any hardware or grocery store. For additional workplace-wide hearing protection options, browse our Hearing Protection collection.

OSHA and ANSI S3.19: What the NRR Actually Tells You

NRR (Noise Reduction Rating) is determined under ANSI S3.19, a laboratory measurement protocol that uses trained human subjects, controlled fit, and audiometric test conditions. The resulting NRR appears on the product label by EPA requirement. OSHA 29 CFR 1910.95 mandates that employers derate the labeled NRR before applying it to real-world workplace exposure calculations. The standard derating method: subtract 7 from the NRR, then divide by 2. For the Impact Sport Camo's NRR 22:

(22 − 7) ÷ 2 = 7.5 dB estimated real-world attenuation

A worker at 90 dBA TWA wearing this earmuff would have an estimated exposure of approximately 82.5 dBA after attenuation — below OSHA's 90 dBA permissible exposure limit (PEL). A worker at 98 dBA TWA would be estimated at exactly the PEL. At 100 dBA, the device alone would not bring exposure to or below the PEL without double protection. The derating accounts for real-world fit variability; properly fitted earmuffs routinely exceed the derated value in practice, but the derated figure is the regulatory planning number. For more, see our NRR Hearing Protection Guide and the full context in our Hearing Conservation Program Guide.

Frequently Asked Questions

What is the NRR of the Howard Leight R-01526MC Impact Sport Camo?

NRR 22 dB, tested and labeled under ANSI S3.19. After OSHA's required(NRR − 7) ÷ 2 method, the estimated real-world attenuation is approximately 7.5 dB, suitable for continuous noise environments up to roughly 98 dBA TWA.

How does the Impact Sport Camo protect against gunshots?

The earmuff uses built-in microphones and speakers to amplify ambient sounds at safe levels. When input exceeds approximately 82 dB — the threshold set to capture impulse noise — the electronics automatically compress the signal. Gunshot peaks at 140–165 dB SPL are attenuated by the cup's passive NRR 22 rating plus the electronic limiting, keeping sound at the ear to a hearing-safe level.

Is the Howard Leight Impact Sport Camo OSHA compliant?

Yes. It carries a valid NRR under ANSI S3.19, making it an approved hearing protector for OSHA 29 CFR 1910.95 hearing conservation programs. Employers must apply OSHA's derating formula to the NRR when assessing adequacy for a specific noise level.

What batteries does the Impact Sport Camo use?

Two AAA batteries. Standard alkaline batteries available at any hardware, grocery, or convenience store. Replacements are inexpensive and widely available.

Does the Impact Sport Camo have Bluetooth?

No. The R-01526MC does not include Bluetooth or an audio input for streaming. The Howard Leight Impact Sport Bluetooth variant adds wireless streaming at the same NRR 22 rating.

Can I wear earplugs underneath the Impact Sport Camo for more protection?

Yes. Double protection — earmuffs over foam earplugs — is an accepted and recommended approach for environments above approximately 98 dBA TWA. OSHA guidance allows adding 5 dB to the NRR of the higher-rated device when doubling. See our Best Earplugs for Work guide and our PPE collection for compatible foam earplug options.

What is the impulse suppression threshold?

The Impact Sport electronics compress sounds that exceed approximately 82 dB input. This threshold is set to allow normal speech and range commands to pass through amplified while capturing the rapid onset of gunshot impulse noise for suppression.

Is the Impact Sport Camo waterproof or weatherproof?

No published IP or weatherproofing rating exists for this model. The camo finish is aesthetic only. Howard Leight does not endorse use in sustained rain or submersion scenarios under published specifications.

How does NRR 22 compare to other electronic earmuffs?

NRR 22 is the most common rating in the sport-shooting electronic earmuff category. Some premium models reach NRR 25–27, which adds roughly 1–2.5 dB of derated real-world attenuation. For most range and hunting use cases, NRR 22 is adequate. Browse the full Electronic Ear Muffs collection to compare available ratings.

What is the difference between the Camo and standard Impact Sport variants?

The protection specifications — NRR 22 dB, electronic amplification platform, impulse suppression threshold — are identical across Impact Sport variants. The Camo finish is the only functional differentiator; it is designed for hunters who want the earmuff to blend with field clothing. Standard black and OD Green versions provide the same protection with a more range-neutral aesthetic.

Can I use this earmuff for industrial work?

Yes, within its rated capacity. NRR 22 (derated to ~7.5 dB real-world) covers environments up to approximately 98 dBA TWA. For shift-long wear, check battery life expectations and ergonomic fit for your work position. Environments louder than 98 dBA require additional protection. Our Hearing Conservation Program Guide explains how to select the right HPD for your facility's measured noise levels.

Does the Impact Sport Camo fold for storage?

Yes. The headband folds down, reducing the footprint for pack storage — a practical consideration for hunters carrying gear to a field position. The folded profile fits into most daypack side pockets.

Why Trust This Review

WC Safety is an independent safety equipment review site. We do not accept manufacturer payment, free product samples, or sponsorship arrangements. Every spec cited in this review is drawn from the product page or the published ANSI S3.19 / OSHA 29 CFR 1910.95 regulatory framework — no claims are fabricated or extrapolated. Our editorial desk reviews content before publication to verify factual accuracy against source documents. We participate in the Amazon Associates program; affiliate links are disclosed inline and in the footer.

WC Safety has sold PPE and safety equipment to industrial, commercial, and individual buyers since 2012. Our category guides are written to help buyers select correctly for their actual noise exposure level, not to maximize unit sales. If a product is not right for a buyer's environment, we say so.

Written by Steven Eaton — PPE specialist and founder of WC Safety. Steven researches industrial safety programs across manufacturing, construction, and oil & gas sectors. He is the primary editorial voice for WC Safety's hearing protection content and has personally evaluated dozens of HPDs against OSHA 1910.95 program requirements.
WC Safety Editorial Review — Published June 2026

What the electronics actually do on the Impact Sport Camo

They do not protect you. The cup does. NRR 22 is the passive rating of the shell and cushion, measured with the electronics irrelevant. Everything the circuit adds is about hearing what you want to hear in between the noise.

• Amplification is capped at 82 dB. Ambient sound — a range command, a spotter, a reversing alarm — is amplified up to that ceiling and no further. The cap is the safety feature; it is what stops the muff from feeding you a gunshot at conversational volume.
• Impulse noise is cut, not attenuated by the circuit. When the level crosses the threshold the amplifier shuts off in milliseconds and you are left with the passive muff. That is the correct behavior, and it is why the passive number is the one that matters.
• Flat batteries do not leave you unprotected. A dead muff is a passive muff at its full NRR 22. What you lose is situational awareness, which is a real loss on a range or a job site, but it is not a protection failure.
• Amplification does not raise the rating. No amount of electronics changes NRR 22 into a higher number, and a muff that is amplifying is not protecting any less than one that is switched off.

The number to plan around. OSHA 29 CFR 1910.95 derates by (NRR − 7) ÷ 2, which gives 7.5 dB here. NIOSH derates earmuffs by 25%, giving about 16.5 dB. Both sit well under the 22 on the box, and neither is affected by whether the batteries are fresh.

Which Impact model — the rating gap is bigger than the price gap

• Eight NRR points separate the Pro from the Sport, and every Sport variant shares the same 22. Choosing between the Sport variants is a choice about color, connectivity and head size — not about protection.
• Buy the Pro when the measured level demands it, not because it is the more expensive one. Derated, 30 and 22 are roughly 11.5 dB and 7.5 dB under the OSHA method — a difference that decides whether a given area is covered.
• The low-profile cup is a shooting feature, not a comfort feature. The Sport shell is cut to clear a rifle stock at the cheek weld. The Pro cup is deeper and will get bumped by a long gun.
• Cushions are the consumable. Foam hardens and cracks with sweat and time, and a stiff cushion cannot seal. Replacing the cushions restores far more attenuation than moving up a model with a tired seal.

Fit beats rating, every time

A foam earplug only works if it is rolled down thin, inserted deep enough, and held while it expands. A plug resting in the outer ear can deliver a small fraction of its rating — the difference between a good and a poor insertion is far larger than the difference between an NRR 27 plug and an NRR 33 one.

• Roll the whole plug into a thin crease-free cylinder, do not just pinch the tip.
• Pull the ear up and back with the opposite hand to straighten the canal before inserting.
• Hold for the full expansion time — releasing early is the commonest error, and the plug backs out as it expands.
• Check it. With plugs seated correctly, your own voice sounds hollow and muffled. If it sounds normal, they are not in.

Where a program needs evidence rather than technique, fit testing for hearing protection exists and produces a measured personal attenuation rating for the individual — the hearing equivalent of a respirator fit test, and far more informative than any label.

Related hearing protection

Foam and reusable plugs sit under corded ear plugs, within the wider hearing protection range. Where plugs cannot be worn — ear infections, frequent on-off cycles, or a workforce that will not insert them consistently — ear muffs are the more reliable choice because their fit is far less technique-dependent. For intermittent noise where hearing speech between exposures matters, see banded ear plugs.

What using one of these legally requires

An earplug is not a compliance strategy on its own. Where noise exposure reaches the action level, OSHA 29 CFR 1910.95 requires a hearing conservation program, and the protector is one part of it:

• The action level is an 8-hour TWA of 85 dBA. At or above it the employer must run the program. The permissible exposure limit is 90 dBA as an 8-hour TWA, on a 5 dB exchange rate — so 95 dBA is a 4-hour exposure and 100 dBA a two-hour one. NIOSH recommends a lower 85 dBA limit on a 3 dB exchange.
• Monitoring comes first. A noise survey establishes who is exposed and to what. Choosing a protector by its rating without knowing the level it has to bring down is guesswork in both directions.
• Audiometric testing. A baseline audiogram within six months of first exposure, then annually. That test — not the number on the packet — is the evidence that the program is working.
• Protectors provided at no cost, with a real choice. Employees must be able to select from a variety of suitable protectors, and be trained in fitting, care and use. Attenuation has to be adequate for the actual exposure.
• Training annually, and records kept. Exposure measurements and audiometric records are retained; training is repeated every year.

Two limits apply regardless of the model. Hearing protection sits at the bottom of the hierarchy of controls — where feasible engineering or administrative controls can bring exposure down, they are required, and a plug is not a substitute for them. And a rating is a laboratory ceiling reached only with a correct fit, which is why fit and training move the outcome more than a higher number on the box.

Why trust WC Safety

WC Safety is an independent, affiliate-supported review site. We hold no inventory, sell nothing directly, and earn only from qualifying purchases made through clearly marked links — which never changes what a hearing protector is rated to do. This review is compiled by Steven Eaton from the manufacturer’s published listing, the EPA-labeled Noise Reduction Rating that appears on the packaging, and the text of OSHA 29 CFR 1910.95 and the NIOSH hearing-loss prevention criteria. We hold no laboratory, run no attenuation testing, and publish no customer-rating aggregate, because we have no customers to aggregate. Where the published record disagrees with itself, we say so rather than pick a figure.

Our methodology

Specifications come from the live listing and its variant record; standards language comes from OSHA 29 CFR 1910.95 and the NIOSH criteria directly. The NRR is reported as the manufacturer publishes it and then derated by a stated method — OSHA’s (NRR − 7) ÷ 2, or the NIOSH percentage for the device type — never presented as the protection a wearer receives. The score is an editorial judgment of specification, fit type and value: not a measured result, not an attenuation test, and not an average of user ratings.

Related hearing protection

Foam and reusable plugs sit under corded ear plugs, within the wider hearing protection range. Where plugs cannot be worn — ear infections, frequent on-off cycles, or a workforce that will not insert them consistently — ear muffs are the more reliable choice because their fit is far less technique-dependent. For intermittent noise where hearing speech between exposures matters, see banded ear plugs.

Researched and written by Steven Eaton, editor of WC Safety. Steven holds no safety certification and does not test products; this page compares what manufacturers publish, with the gaps in that record marked. Last reviewed July 2026.