Earmor
M31 PLUS Electronic Ear Muff
The budget electronic muff that undercuts the Howard Leight Impact Sport while adding gel ear cushions. NRR 22 dB, sub-0.1 second impulse suppression above 82 dB, five ambient volume levels, and a 3.5mm AUX input.
Quick Specs
- Price
- $70
- Weight
- N/A
- Brand
- Earmor
- Category
- hearing-protection
Features
- •NRR 22 dB
- •Impulse suppression under 0.1 s above 82 dB
- •5 ambient volume levels + 3 enhancement levels
- •Gel ear cushions
- •3.5mm AUX input
- •2x AAA batteries, ~350 hr life
- •IPX-5 water resistant
Overview
The Earmor M31 PLUS is the pick when you want gel ear cushions and electronic hearing protection for less than the Howard Leight Impact Sport charges. At $69.99 it undercuts the Impact Sport while shipping with the sweat-resistant gel cups most shooters buy as a $20 upgrade for the Howard Leight.
Two external microphones amplify ambient sound across five selectable volume levels, with three additional enhancement levels for low-volume environments. Impulse noise above 82 dB is electronically compressed in under 0.1 seconds, and the muff keeps its full NRR 22 dB passive protection with the electronics off. A 3.5mm AUX input feeds music or a radio downlead, and the shell carries an IPX-5 water-resistance rating that the Impact Sport does not match. Two AAA batteries run roughly 350 hours.
The M31 is the range-only member of the family. It has no boom microphone and no push-to-talk port, which keeps the profile clean and the price down. If you want two-way radio integration, that is the M32. Between the two, the M31 is the one to buy for pure range and hunting use.
Key Features
- NRR 22 dB with gel ear cushions included
- Two microphones with five ambient volume levels and three enhancement levels
- Impulse suppression in under 0.1 seconds above 82 dB
- Retains full passive NRR 22 with electronics off
- 3.5mm AUX input for music or radio downlead
- IPX-5 water-resistant shell
- 2x AAA batteries, roughly 350 hours of runtime
- Available in black, coyote brown, and foliage green
Pros
- +Gel ear cushions included at a lower price than the Impact Sport
- +IPX-5 water resistance the value Howard Leight and Walker's muffs lack
- +Five ambient volume levels plus three enhancement levels
- +Retains full NRR 22 passive protection with electronics off
Cons
- −NRR 22 is marginal for indoor ranges without doubling up
- −No communications microphone (step up to the M32 for radio use)
- −Sound amplification quality below the Peltor Sport Tactical 500
Detailed Specifications
- nrr
- 22 dB
- amplification
- 5 ambient volume levels + 3 enhancement levels
- compressionThreshold
- 82 dB, under 0.1 second response
- batteries
- 2x AAA (~350 hours)
- cushions
- Gel ear cushions
- input
- 3.5mm AUX
- waterResistance
- IPX-5
- colors
- Black, Coyote Brown, Foliage Green
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Build Your Custom Configuration
Add the M31 PLUS Electronic Ear Muff to your build and see how it enhances your platform.