Which should you buy, the Walker's Razor Slim or the Howard Leight Impact Sport, and how do their electronic hearing protection designs compare?
For entry-level electronic muffs, Walker's states an NRR of 23 dB, two high-gain omnidirectional microphones, and sound-activated compression with a 0.02 second reaction time. Honeywell states passive attenuation of 22 dB, built-in directional microphones, amplification up to 4 times that compresses when ambient impact sound reaches 82 dB, and a 4-hour automatic shut-off. The 0.02 second figure and the 82 dB figure are different specifications, not one trade-off. This page does not treat either muff as enough by itself for gunfire; the shooting ear protection guide sets out what NIOSH recommends.
Published September 22, 2026
The direct answer
For entry-level electronic muffs, Walker's states an NRR of 23 dB, two high-gain omnidirectional microphones, and sound-activated compression with a 0.02 second reaction time. Honeywell states passive attenuation of 22 dB, built-in directional microphones, amplification up to 4 times that compresses when ambient impact sound reaches 82 dB, and a 4-hour automatic shut-off. The 0.02 second figure and the 82 dB figure are different specifications, not one trade-off. This page does not treat either muff as enough by itself for gunfire; the shooting ear protection guide sets out what NIOSH recommends.
Decision table
Every factual cell comes from the maker page in its Source row. “Not stated by the maker” means the maker's product page did not make that claim. It does not turn silence into a negative product feature.
| Attribute | Walker's Razor Slim Electronic Ear Muffs | Howard Leight™ Impact® Sport Electronic Protective Earmuff by Honeywell |
|---|---|---|
| Noise Reduction Rating (NRR) | 23 dB | 22 dB passive |
| Microphone type | Two high-gain omnidirectional microphones | Built-in directional microphones |
| Compression reaction time | 0.02 seconds | Not stated by the maker |
| Amplification compression limit | Not stated by the maker | Automatically compresses amplification when sound reaches 82 dB |
| Audio input | Audio input jack | Connects to iPod, MP3 and other devices |
| Auto shut-off | Not stated by the maker | 4-hour automatic shut-off |
| Headband | Comfort headband with metal wire frame | Soft headband |
| Battery type | Two AAA batteries (included) | Not stated by the maker |
| Source | Walker's Razor Slim Electronic Ear Muffs | Howard Leight™ Impact® Sport Electronic Protective Earmuff by Honeywell |
Who should pick which
Consider Walker's Razor Slim
Pick the Walker's Razor Slim if you prefer omnidirectional microphones that pick up ambient environmental sounds and range instructions from all directions equally, or if a documented 0.02 second sound-activated compression reaction time is your priority. Walker's specifies an NRR of 23 dB, recessed volume control, and included AAA batteries.
Consider Howard Leight Impact Sport
Pick the Howard Leight Impact Sport if you prefer directional microphones that assist with identifying sound orientation, or if you want built-in 4-hour automatic shut-off. Honeywell specifies an NRR of 22 dB, up to 4 times ambient sound amplification that automatically compresses when impact sound reaches 82 dB, and patented Air Flow Control technology.
What the makers do not state
Walker publishes a 0.02 second reaction time for its sound-activated compression, but does not state an exact decibel cutoff where ambient amplification ceases.
Walker's combo description also says .002-second while its tech spec says 0.02 second; this page uses the tech spec figure.
Honeywell publishes an 82 dB threshold where amplification compression activates, but does not state a reaction time in milliseconds or seconds. A reaction time and an amplification threshold are different physical specifications; they cannot be compared as direct trade-offs.
Neither maker publishes a shared test standard comparison between both models. Walker's 23 dB NRR and Honeywell's 22 dB NRR are laboratory ratings determined by each maker independently.
NRR is a laboratory rating, not a field performance guarantee.
Honeywell's published product sheet lists a 4-hour auto shut-off and audio connectivity, but does not state battery cell type or total product weight.
Walker's product pages do not state an automatic shut-off timer duration.
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Frequently asked questions
What Noise Reduction Rating (NRR) does each maker state?
Walker states an NRR of 23 dB for the Razor Slim, and Honeywell states passive attenuation of 22 dB for the Howard Leight Impact Sport.
How do the microphone configurations compare between the two models?
Walker's Razor Slim uses two high-gain omnidirectional microphones to pick up sound from all directions, whereas the Howard Leight Impact Sport uses built-in directional microphones to provide directional audio awareness.
What is the difference between Walker's 0.02 second reaction time and Honeywell's 82 dB compression?
They measure different specifications. Walker's 0.02 second reaction time measures how quickly sound-activated compression engages when loud noises occur. Honeywell's 82 dB rating measures the sound pressure level threshold at which ambient amplification is automatically compressed. Neither maker publishes both figures, so they are not interchangeable metrics.
Does either earmuff feature an automatic shut-off?
Honeywell states a low-energy 4-hour automatic shut-off for the Impact Sport. Walker's specifications do not state an automatic shut-off feature for the Razor Slim.
What audio input do they provide?
Walker's includes an audio input jack, while Honeywell connects to iPod, MP3 and other devices.
Keep the decision in context
This comparison evaluates two specific electronic ear muffs; explore the broader shooting ear protection guide for passive muffs, earplugs, and double-protection recommendations. To compare hearing protection against our curated picks across value and bargain tiers, visit the ear protection category on The Grid.