They really work. took the echo out of my ...
594235
They really work. took the echo out of my home studio. You can  hear the difference. Would have gave them 5 Stars. if they were a little thicker.
2149004
I bought this product (along with 12 panels of the charcoal color) to reduce the echo in my bedroom, where I have my desktop PC and all of the accompanying audio gear. Even though the reverberations weren't all that noticeable at normal speaking volumes, I could easily tell by clapping my hands and listening to the reflected sound bounce back and forth.

I installed* 5 of my 6 ice blue panels and 8 of my 12 charcoal panels above the headboard of my bed, on the wall opposite of my bookshelf speakers, for obvious reasons. I would not recommend mounting these acoustic panels directly behind or around the back of your speakers  at least, not first. Using a two-way speaker as an example, the tweeter's output are generally quite directional, meaning that placing acoustic panels anywhere but in front of the driver is both an inefficient and improper use of this product.

As far as the performance goes, my installation* of 13 total panels (of my 18 purchased) amounts to a significantly noticeable reduction of echo. For as little panels that I wall mounted, I'm very pleased, actually!! In the future, I will probably install* more of these panels on the ceiling or other walls.

When I received these panels, the first thing I noticed was that they appear to be thick enough to actually be effective at absorbing high frequency sound from multiple directions. See my comparison photo between these 2-inch pyramid panels and a 1-inch wedge panel. I won't be buying 1-inch panels ever again, even if you get twice as many. The old saying, "quality over quantity," strikes again.

Lastly, I'd like to make mention of my perception of the quality control. Because I've just today received my third 6-pack of these panels (in different colors, too), I can say this with certainty:
 Your panels will NOT be precisely the same dimensions (L x W), even within a single 6-pack. Some varied by as much as 1/8th of an inch.
 You may, by chance, receive a panel with a chunk of foam missing from an edge. I did, and it is annoying, but I will tolerate it.

If I were able to test and/or validate some performance claims of this product (if any exist), I would, and hopefully I could conclude that this product was a 5 out of 5. However, I cannot. Nevertheless, I am confident that Foamily has competently produced an acoustic treatment product that faithfully performs as one would expect. I'm happily giving these panels 4 out of 5 stars, based on their perceived performance, aesthetics, and quality. I've attached photos so that you may see how I'm using them!

_________________________________________________

*My installation of these panels involved&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Scotch-brand-velcro-fasteners/dp/B000AN5CGE/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Scotch brand velcro fasteners</a>. They stick to walls and foam very well, aren't permanent, and allow you to adjust the position of whatever you're velcro-ing together.
42220
I love them.  I have them paired with my Amazon Echo to control my bedrooms lights.
1726342
Work well. Sound good. Cut out a little. Well worth the purchase price.
4040665
These actually work as advertised, and I only have one ding about them.  Well, two, but not everybody drives motorcycles...

These work very well, I use them for work, and I'm on my phone a lot.  Clear sound on both ends of the conversation, music sounds very good, fit is good, convenience, battery life, functional wireless distance, all good, at a decent price.  I really like the "click it together into a necklace" to hang up or pause the music, that really works nice.

The two dings are, first, they are pretty big in your ears, heavy, if you know what I mean.  The magnets and batteries are all in the earpieces, so they are pretty big as they hang in your ears.  It doesn't pull them out, but it's noticeable.  A related effect is that they don't fit in my motorcycle helmet, so I'll have to use normal ear buds or buy another BT wireless set with small ear buds.  Not a big deal, just something you all should know.  The second "ding", not much of one, is that when they fasten together and pause or hang up, they ride right on your sternum bone, and if you happen to put on a seat belt or shoulder strap of a laptop bag or purse, it kind of digs into your chest uncomfortably till you move them somewhere else.  Other earbuds do this too, these are just a bit worse since they're so big as noted earlier.

I'm liking them, and I recommend them, just be aware of these items and make your decision fully informed.  When these break I will probably buy them again, if that tells you anything.  I like 'em.
3880916
They really do work as good as they say they will. Very pleased.
1254177
These have made a huge difference in my cameras.  One that couldn't get a signal through walls now works perfectly.  Another that dropped out often no longer does.  I would highly recommend replacing every antenna with one of these.  For the price they are well worth it. My only problem is the thread is plastic so if you aren't careful screwing it on to the camera, you will strip the threads.  Works well for indoor as well as outdoor cameras even in extreme weather (we have a lot of ice and snow and wind), really boosted cameras that were far from the router.
3901711
These work way better than the super cheap ones that will chirp from time to time.  No chirping with these.  They are not insanely loud but loud enough to wake you up or startle an intruder.
2752390
These work very well! I'm glad I got them. I've been using them 6 months now and they still work great.
2563233
Had a bad EMI issues connecting my Echo Dot, which is placed next to two computer monitors to my home stereo 15 feet away.  I used a different isolator but it only partially fixed my problem.  I ordered this isolator based on reviews and it quickly solved my interference issues two days later.
3538676
Works really well. Noise isolation is good.
These are a little difficult to get fitted and to understand how to put them in your ear, but once you figure it out (there are videos on their web site), it works great.
I use mine to block noise while I sleep and they work great.
4886580
They work really good I luv how they snug good in my ear. Keeps out all the other noise.
1516190
This really helped kill the floor vibrations from bass.
2969624
I keep a few of these around as spares.  They work well, but once I had people on a con call tell me I was generating an echo.  It stopped when I went on mute.  I can't be sure if it was the earbuds, my phone itself, or some other cause.  For the price, they're great.
2677630
These were hard to find and solved a problem that I had.  I put a powered subwoofer into a cabinet that has a door.  Regular connectors stuck out to far and I could not close the door.  With these installed I am able to close the door now.  These solve the problem of RCA plugs sticking out too far.  I would say they stick out about 1 inch less than the shortest RCA cable connector I could find.

The RCA connectors on the subwoofer were by the hinges so even though these saved 1 inch sticking out, the door actually stuck out 3 inches.

 I wish they had put 90 degree in the name.  It took me a long time to find these (hours of searching).  Hope you find these faster if you can use these, I put "90 degree" in the title of this review to help finding these.

Shipping time was slow, I think because these are such a specialty item and were well worth it because now I can close my door,  I was thinking about moving the subwoofer and building a shelve for it so these saved me more time by not having to build something, so the shipping time was well worth it.

Another feature of these that I just found out, is they can protect your equipment from stress.  I learned about this because I just bought a bass guitar and was told that 90 plugs put less stress on the connecter because of the forces evolved (moment arm).
So now I use these on all my equipment to save the jacks if I might move the equipment.  All of my powered speakers and subwoofers have female connectors and if they break, it would be a major problem.
4872951
They work.  The most important thing is they DO NOT vibrate.  I would buy these again.
3112450
These work really well. I use them with my Echo Plus and don't have to have any other kind of hub. Im only giving four stars as a warning - I really wish I had bought the in-wall switches instead. When your wall switch is turned off, theres no way to turn these on.