Very Different than regular Ear Muffs.
355002
Soooooo cool! I'm not used to being able to hear clearly with ear Muff's on, so the adjustment takes time.
2870283
I realize this product is designed to block gun noise....but I assumed that it would also be great to block the sounds  made by my Congo African Grey.  Even standing a room away with the ear muffs on I could still hear her as well as the music I was playing in her room.  VERY surprised and disappointed!  It's been many years since I have been to a gun range but I wouldn't wear these muffs without the additional protection of a pair of ear plugs if I was shooting a handgun.  They are also VERY tight, and I have a small head, so not very comfortable either.  Thankfully the return to Amazon was very easy!
3262639
The idea is great. But the material is too much like candle wax.  If it were a bit more like the material used in pliable mouth/tooth sleeping guards. They might be one to something.  And because of the rigidity of the material.  It was almost impossible to get a tight seal that would stay in your ear. Therefore letting in too much outside sound.  If you want the real deal.  Buy Shure ear drivers and go to an audiologist to have custom molds made of your ear.  Also, when using these molds, there was a sever loss of bass and fidelity in the sound.
605748
I'm very impressed with these both as hearing protection and as headphones. I'm in the unique position of doing graphic design and playing computer games while sitting next to industrial machinery. As noise protection, these are comfortable and immediately made a dramatic cut in the noise around me - significantly more than the rifle range hearing protection I had been using, my noise cancelling headphones, or my concert earplugs. Having the headphones built in is much more comfortable than trying to fit earbuds under my hearing protection, and the quality of sound is pretty good. These will make my life a lot more pleasant!

Edit: After a week, I've taken this review down from 5 stars to 3. These headphones are too small, and have become very painful to wear. So while they work fine as hearing protection and as headphones, I can't recommend them for use.
3016186
There are significant differences between these and the original triple flange sleeves that come with some Shure's(my E5c pair came with some). It seems like these are made of white rubber rather than the original opaque silicone pair. This has the effect of them being much more rigid and less conforming to the ear canal than before. Also, the flanges themselves are much smaller than the originals. The middle flange on these is approximately the same size as the smallest flange on the older pairs, which in my case, causes the new ones to be unable to create a good seal whatsoever. Even if it did it would still fall out much easier than the original triple flange sleeves, and one of the best features of the flange design in general is that they should stay put fairly well. Perhaps these would be good for people who like their triple flange sleeves but always thought they were too big or too soft. Or perhaps my ear canals are unusual in that they don't allow a good seal (although the originals sealed well). Either way, do not an exact replacement of the sleeves that came with your phones- these are completely different and should not be marketed as replacements.
4683196
Great sound, not a fan of the design. Bulky by the ears.
1708936
If you have a rather large head like me, these won't be very comfortable to wear. I used these for a few hours straight and found myself getting a headache around my jaw bone due to the pressure being put on my ears. And fully expanded, they did not quite reach down far enough to cover my ears. I ended up putting them on at an odd angle to get them to fit over my ears.

The fit is disappointing because I really like the sound quality and the Bluetooth connectivity to multiple devices worked extremely well.

If you have a Bose retail outlet nearby, I suggest going there first to try these on before buying them.
4890712
These do NOT have "ACTIVE noise-canceling technology to block out background noise". Though perhaps the price gives that away, the description is incorrect. Noise bleed is profound, as another reviewer mentioned.
4891686
The custom molding is easy and works fine.  I went through the fitting process with a friend who double checked to see that I was following the directions and doing it right.  I was really pleased because the seal was tight and comfortable.  The problem is that these don't stop sound...at least not gunfire.  I tried them at the indoor range and almost jumped out of my skin when the person in the next bay fired his weapon.  It was as if I was wearing no hearing protection at all.  I went outside and rechecked the fit and had one of the pros who work there to make sure the plug was closed and that I hadn't missed something and then tried again.  Still nothing.  After three or four more rounds fired, I quickly grabbed my muff protection.  My ears rang for two days afterward.  I don't know if they work on other types of sound, but they are completely worthless for shooting.
4759923
These were not exactly what I was looking for. Although the assorted sizes included made it easy to find one that fit my ear. They pretty much block all sound. Good for really loud events and such but I am a working musician and they blocked out to much of the sound, I got the LiveMusic HearSafe Ear Plugs - they worked fine, let in just enough of the sound so I can hear the band and not go deaf.

https://www.amazon.com/dp/B00H2F87I8/ref=cm_cr_ryp_prd_ttl_sol_11
4951038
I've never used earmuff hearing protectors when shooting before (just earplugs). I have used them when I used to work in the construction field - and let me tell you the technology has really advanced.

My husband and I took these out on the shooting range and they really deadened gunshot sounds.

Also, they fit me very well with a nice seal around the ear pads. My husband has a BIG head and they didn't fit him as well.

You will need two AAA batteries - they aren't supplied with the earmuffs. I wish the on/off volume knob had something written on it to show whether it's turned off or not. You turn it clockwise to turn on but it's a plain black dial with no markings. Luckily, the earmuffs automatically turn off if they haven't been used in two hours.

The muffs fold up small and are easy to stow. They also come with a 3.5mm stereo audio cable for whatever device you might want to listen to on the shooting range or while out hunting.

NOTE: I am partially deaf and I had no problem hearing conversations and ambient sounds around me when the cuffs were turned on.

These are a great product.
4891897
I was really disappointed when I first tried them on and realised they weren't a cone of silence and fully regretted buying them.

I only realised how great they were after a few extended sessions with them on - as when I would eventually take them off I was suddenly assulted by a torrent of external noise. I'm not sure exactly why, but the longer I have them on the greater the reduction in external noise. Which I guess could be cause the external noise becomes less intrusive with them on and easier for my brain to just tune it out.

And I dunno if it is just me but I prefer to use them without the noise cancelling feature on.... unless there is a loud lawn mower - which it seems to work well to neutralise into a gentle hum.

BTW: Since these headphones don't press against your ears - you can create the ultimate cone of silence by using ear plugs with them.
3833670
There heavy for the ear to hold, you have to push them off n your but it will reduce ur hearing
2209642
Not as good as muffs, but then it's not as expensive either.
172354
These are very comfortable.  They don't squash my ears, like some other headsets/earmuffs, and they're quite adjustable.  The reviewers who complain that these don't fit a large head may not have realized (it's not obvious, but easy once you notice) that the ear cups can be pulled quite far down.

So that's all good.  On the minus side, the noise attenuation is minimal. I wanted these to protect my sanity against the ubiquitous neighborhood leaf blowers. They have almost no effect. Maybe it's a frequency thing - then I wish ear protectors were labeled according to what sounds they block, and what they don't.

In short, these look much more impressive and heavy duty than they are in practice.
4429366
This item has a serious engineering/design flaw.  It is constructed in such a way that it does not provide good positive contact surrounding the ear.  The lower section of the muff lifts away from the head  allowing any noise to enter the ear leaving your hearing unprotected.
2096087
Upon putting them on I saw that the bows are so far from my head that I cannot put on ear muffs. These will not work for shooting ranges. The do not allow the hearing protection to seal. Fine if you are using in the ear protection. Not right for me.