Are these really 37 db? Saw another noise reduction headset that claimed it was one thing and the comments under it stated that it wasn't

the description for these says 34-37dB in some places, then just 37 in others. The "37" is probably only at certain frequencies, whereas the average noise reduction across all frequencies could be anywhere between 34 and 37dB. NRR is a sneaky average rating that companies can report without saying much about the specific properties of the hearing protection.

Will these adjust to fit someone with a large head?

They sell an extra large for those of us with massive pumpkins on top of our shoulders. Make sure you choose the Extra Large if you have a big head. I wear a 7 & 5/8 hat and the Extra Large fits me without issue. My wife's pink ones in large are tight. Hope that helps

American based, and veteran owned.

Considering these for woodworking with power tools. Would they fit comfortably over safety glasses?

I use them strictly for woodworking. Mostly with my jointer and planer. Put your safety glasses on first then the ear muffs over them. Very comfortable fit.

Decibel Defense Ear Protection 37 Db Nrr Ear Muffs Black

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Description

🛡️ Hear Less Noise, Live More Life — Protect Your Ears Like a Pro!

COMFORT THAT LASTS - Padded headband and soft dBTech foam combine with a lightweight 12 oz design for hours of fatigue-free wear.
VERSATILE PORTABLE - Foldable, easy to carry, perfect for shooting, woodworking, lawn care, or sensory relief in noisy settings.
UNMATCHED NOISE DEFENSE - Industry-leading 37 dB NRR shields your ears from the loudest environments, from gun ranges to construction sites.
TAILORED FIT FOR EVERY HEAD - Choose Regular or XL sizes with smooth metal sliders ensuring a secure, full-ear seal that maximizes protection.
BUILT TO ENDURE NO BATTERIES NEEDED - Passive design means zero electronics to fail—reliable hearing protection whenever you need it.

DECIBEL DEFENSE Ear Muffs deliver industry-leading 37 dB noise reduction with ANSI and CE certification, available in two sizes for a perfect fit. Designed for professionals and enthusiasts alike, these lightweight, foldable ear muffs provide all-day comfort and reliable passive hearing protection across diverse noisy environments—from gun ranges to construction sites and beyond.

Specifications

ASIN	B01BEENYCQ
Age Range Description	adult
Apparel Closure Type	Foldable
Best Sellers Rank	#1,573 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #8 in Safety Earmuffs
Brand Name	DECIBEL DEFENSE
Color	Black
Customer Reviews	4.5 4.5 out of 5 stars (12,204)
Fit Type	Over the Head
Fit to Size Sentiment	Fits well
Item Dimensions	6 x 3.6 x 5.5 inches
Item Weight	12 ounces
Manufacturer Part Number	#0001
Noise Control	Sound Isolation
Noise Reduction Rating (NRR)	37 db
Pattern	Solid
Product Style	Professional
Single Number Rating (SNR)	37 db
Size	Regular
Sleeve Length Description	Long Sleeve
Style Number	B01BEENYCQ
UPC	756655639453 640746600517
Unit Count	1 Count

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