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🔇 Stay sharp, stay protected — hear only what matters.
The 3M PELTOR™ Optime II Earmuffs H520A deliver premium hearing protection with a high noise reduction rating of 31 dB. Featuring soft foam cushions and an ergonomic design, these earmuffs provide all-day comfort and durability, making them ideal for shooting, industrial, or noisy environments. Trusted by professionals, they combine reliable sound isolation with a lightweight, robust build.

| ASIN | B09T3FTH89 |
| Age Range Description | 18+ |
| Best Sellers Rank | 29,909 in DIY & Tools ( See Top 100 in DIY & Tools ) 75 in Safety Earmuffs |
| Brand Name | 3M |
| Closure Type | no_closure |
| Colour | Black |
| Customer Reviews | 4.6 out of 5 stars 298 Reviews |
| Fit Type | Standard |
| Fit to Size Sentiment | Positive |
| Garment Size Country | Great Britain |
| Global Trade Identification Number | 05902658115523 |
| Included Components | Earmuffs |
| Item Dimensions | 13 x 10.5 x 19.5 centimetres |
| Item Highlight | Ear Defenders Adults, With Soft Cushions, Comfortable Fit with Reduced Pressure, Hearing Protection |
| Item Type Name | 3M Peltor Optime II Comfort Earmuffs H520A, 1/PK (94 - 105 dB) |
| Item Weight | 0.32 Kilograms |
| Manufacturer | 3M |
| Manufacturer Part Number | H520AC1 |
| Material Type | Foam |
| Model Number | H520AC1 |
| Noise Control | Sound Isolation |
| Noise Reduction Rating | 31 Decibels |
| Number of Items | 1 |
| Pattern | Single |
| Product Style | Unique |
| Single Number Rating | 31 Decibels |
| Size | One Size |
| Sleeve Length Description | Long Sleeve |
| Unit Count | 1.0 count |
A**W
3M Peltor Optime II Comfort Earmuffs H520A
TL;DR: A dependable spare pair for clay pigeon shooting, well built and does exactly what you need. Picked these up as an extra pair to have on hand when taking guests out shooting. They do the job without any fuss and the build quality is immediately apparent when you hold them, which matters when you are handing something to a first-timer who might not treat it gently. Not much more to say beyond that they are 3M Peltor, so you know what you are getting. Good attenuation, comfortable enough for a session at the range, and they feel like they will last. Exactly what a spare pair should be.
N**O
Best ear defenders
The best ear defenders I've ever had. Comfortable to wear all day and they work well
A**N
Recommended
Have used this style for nearly 20 years now. Well worth the money and even better for protecting your hearing.
R**H
Great, but green, not black!
Great quality ear defenders and do almost as a good a job of ear protection as a the Optime III but in a more sensible size. Although note that the product description is slightly misleading - these have dark green outer shells, not black.
S**E
Great product
Bought these for shooting when travelling abroad, good tight fit and decent hearing protection.
M**I
Great sound reduction - protect your ears!
Bought these when the inner ear foam pellets weren’t quite enough. This is a substantial improvement and are, in my opinion, for life. Great build quality as expected with 3M and these dampen the whole spectrum whilst also noticeably reducing the top end, which is what is likely to cause the most damage. I find I prefer taking them off or slightly removing off one ear when walking around the ground, just because it makes conversations easier to hear. Whilst they are big and bulky, they are light. I have found a comfortable position where they don’t get in the way of my shoot when the gun is pulled up to my face.
C**.
Very effective
Good
A**R
Peltor ear defenders perfect fit and quality
Used these on the plane to stop my ears hurting on take off and landing worked a treat they are comfortable fit, kept the noise out and are really good quality highly recommended.
C**N
trés efficace
cet article est super et trés efficace, aucun problème ...
A**A
Super
Super Gehörschutz der gut aber nicht zu fest sitzt und sogar verstellbar ist (pro Seite ca. 4cm in der Höhe).
I**E
Pas du tout "élégant"
Mon mari ayant des problèmes de bruit porte constamment ce casque. Il est assez efficace (mais pour lui il laisse encore passer trop de bruit). Pour moi, c'est horrible de voir mon mari avec ce lourd casque se promener dans la maison (et même dans la rue ...). N'y a-t-il vraiment pas moyen de faire un casque relativement efficace (on ne sait jamais supprimer tout le bruit) plus "discret" (déjà le noir est très voyant, e métallisé serait peut-être plus "élégant" ?
C**N
Protección del oído
Muy buenas las recomiendo
N**E
Pretty good but...
...the metal part bends a bit too easily. I managed to bend it just by adjusting the size. You'll have to be a bit gentle with them, and that might not always be the case when out-and-about doing stuff.
Trustpilot
2 days ago
3 weeks ago