SKU: 37217698120

EARMOR M31H MOD4 Tactical Headset Hearing Protection for Ops-Core MT Fast ARC Helmet

Sale price$5040.00 Regular price$5600.00
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

EARMOR M31H MOD4 Tactical Headset Hearing Protection for Ops-Core MT Fast ARC HelmetOPSMEN EARMOR M31H MOD4 Tactical Headset Noise Canceling Hearing Protection Softair Aviation Headphone for FAST MT Helmets The Earmor M31H for Helmet Mount is a professional grade dual muff headset made specifically for military use, based on M31 and comes with different rail kits to mount onto most helmet rails: Ops Core FAST ARCs, Team Wendy EXFIL and MTEK Mlok. It can remove harmful noise and amplify environmental sounds, makes you focus your

OPSMEN EARMOR M31H MOD4 Tactical Headset Noise Canceling Hearing Protection Softair Aviation Headphone for FAST MT Helmets
The Earmor M31H for Helmet-Mount is a professional-grade dual-muff headset made specifically for military use, based on M31 and comes with different rail kits to mount onto most helmet rails: Ops-Core FAST ARCs, Team Wendy EXFIL and MTEK Mlok. It can remove harmful noise and amplify environmental sounds, makes you focus your attention on your hunting and shooting, also ensure your hearing can be protected when a weapon is fired.

EMI/RFI Shielding & Dynamic voice tracking

The electromagnetic waves that cause interference are called electromagnetic noise. RF shielding can suppress the noise(interference) that is generated by device or by other equipment in the environment in order to prevent EMI problems, ensure M31H working flawlessly during any activities.
Dynamic tracking technology improves the accuracy of voice picking system, be sensitive to the human speakers present in the noise and will be able to distinguish between voice and other sounds.

360°situation awareness

Pilots, soldiers, hunters and police officers know how important situational awareness is to their survival on the job. High-Fidelity full degree Situational Awareness (HFSA) technology provides 360° situational awareness provided by two microphones provides front and back audio detection, enhancing heightened awareness of ambient environment, helps recognizing and dealing with unsafe conditions before they become an issue.

High-Impact Resistance

The integrated shell of M31H is 3mm thick and made of polycarbonate, makes it very rigid and resistant thermoplastic with high impact resistance, good fire resistance. Besides, integrated structure will also protect your M31H from water jets at any direction(IPX5), further ensure operational stability and extend service life.

6 Colors

TACTICAL BLACK / FOLIAGE GREEN / COYOTE BROWN / COYOTE TAN / Grey / PINK

Optional Adapter Attachment Kit

M11: ARC rail (FAST MT)

M12: EXFIL T-Slot rail (Team Wendy)

M13: M-lok rail (MTEK)

FEATURES

- Comes with Helmet Rails Adapter Attachment Kit (M11, M12 or M13)

- Noise reduction rating + NRR22

- Amplifies low-level sounds

- Suppresses harmful noise above 82 dB

- EMI/RFI shielding, increased RF immunity for EMI environment
- Anti-false triggering, hold the power button for 3 seconds to power on/off

- Conformable ear cushions for tight seal

- 3mm thick high-impact resistant polycarbonate shell

- Comes with AUX 3.5mm jack for media players

- Dynamic voice tracking, improve speech intelligibility

- Rotatable for stowing behind helmet

- IPX-5 water resistant

- Runs on 2x1.5V AAA batteries, approx. 350 hours of operation

- 4 hours auto shut-off mechanism

- Tested and approved in accordance with CE/RoSH/ANSI S3.19-1974Standards/EN352-1:2002/EN352-4:2001/A1:2005/EN352-5:2002/A1:2005/EN352-6:2002/FCC


DIMENSIONS

Length:100mm
Width:75mm
Height:120mm
Weight:295g(w/o batteries)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 37217698120

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gbrock
Lowell, US
★★★★★ 5
Perfect Weight
Size: 72"W x 72"L (Pack of 1), Color: 1a. Clear
Is a perfect liner. It’s not super thick or heavy. Easy to hang.
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Reviewed in the United States on May 26, 2026
J
Verified Purchase
JS
Cuba, US
★★★★★ 4
Too lightweight and flimsy, but it does the job
Size: 72"W x 72"L (Pack of 1), Color: 1a. Clear
This shower liner works as expected, but it is a bit lightweight, and will drift around in the shower. I will look at getting a more heavy duty one in the future. This one has the 3 magnets, and that isn't enough. I would recommend getting one with double the magnets and a thicker plastic. I went cheap and regret it slightly, but at least these things are made to be disposable. Other than that, the durability seems good, and it looks and feels like you would expect, but as stated, the plastic is flimsy and flutters around. Seems fairly mold resistant vs other liners I've used from the store (like cheaper Walmart ones etc).
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Reviewed in the United States on March 8, 2026
J
Verified Purchase
Joshua
Chelsea, US
★★★★★ 5
The ultimate water bottle
Color: Iced Breeze, Size: 24 Ounces
I can’t believe I’m so excited about a water bottle. The design is amazing - I love that there’s no straw poking up but there’s still a straw sip function. I like that the carrying hook doubles as a lid locking mechanism. This bottle feels very sturdy but it’s sleek and easy to grab - I have small hands and it isn’t a problem for me to drink from with one hand. It’s also really nice that this bottle fits in standard couple holders both at the gym in the machines and in my car. The color selection is so fun and I am pleased that my bottle looks exactly as pictured. My water has stayed cold and my ice cubes frozen for over 12 hours now. Cannot recommend enough!
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Reviewed in the United States on May 29, 2026
R
Verified Purchase
Rob W
New York, US
★★★★★ 5
Keeps drinks cold all day
Color: Very, Very Dark, Size: 24 Ounces
We got this Owala bottle for our son to use as his everyday school water bottle, and it has been excellent. The 24oz size holds plenty of water for the school day without being overly bulky or heavy to carry around. The insulation works extremely well. Drinks stay cold all day long, even when the bottle sits in a backpack for hours. That’s probably the feature we’ve been most impressed with so far. It’s also been great for car trips since it keeps water cold for extended periods without needing constant refills. The design is really well thought out too. The built-in straw makes it easy to drink from quickly during class or while traveling, and the lid feels secure and leak-resistant when closed. It also has a clean, modern look that feels a little more premium than many standard water bottles. Build quality feels solid overall, and it seems designed to hold up well to everyday use from school, sports, and travel. Overall, this has been a fantastic everyday water bottle and definitely lives up to the hype. Keeps drinks cold, holds a good amount of water, and works equally well for school or road trips.
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Reviewed in the United States on May 28, 2026
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Morgan A from VA
Carnegie, US
★★★★★ 5
Cup holder friendly AND functional!
Color: Denim, Size: 24 Ounces, Color: Denim, Size: 24 Ounces
I have a dupe of this cup in a 32oz version and I’m in love with it except for one thing, it doesn’t fit in the cup holders of my vehicles very well. For Father’s Day, my husband needed an insulated cup for when he works outside, his current one doesn’t fit in a cup holder. This was a perfect option for him since he likes the one I have. First things first: this thing keeps liquids COLD for a VERY long time. Haven’t put anything hot into it and don’t plan to so I cannot attest to that. It’s lightweight, durable, and the versatility with the straw is really what makes this cup stand out. You can use a straw OR take a sip without changing adaptors or adding a straw. The straw is basically built into the spout. It’s leakproof which I greatly appreciate. With this being on sale I jumped on it. These are such nice cups, and I can confirm they fit the cup holders of my vehicles from my 22 RAV4 to my 05 Corolla. This is a definite buy and I really hope my husband gets me one since my dupe doesn’t fit in my cup holders. As for the 24oz of this cup, it fits. The colors are fun. It’s unique, and extremely functional.
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Reviewed in the United States on May 25, 2026

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