50 Pack Acoustic Foam Panels Premium Sound Proof Foam Panels Black Soundproof Wall Panels High Density Acoustic Panels Sound Absorbing for Studio Office Home, 12 x 12x 1Inch …

They came in compressed and expanded within a day or so.. had trouble getting them to stick to the 3M adhesive patches...had to reenforce with Gorilla tape...So far so good..

this is a good , highly recommended product

The blue panels discolored to a sickly green after a month or so

Did great job helped this noise level

I packed (2 tiles/square) of these into my bedroom windows at my apartment (the street traffic was driving me crazy!) and it made a huge difference in the amount of street traffic I hear!!! I’m thrilled! I wasn’t sure if it was going to work because so many reviews said it’s not for this kind of use.. but, I figured, sound is sound right? I’m sooooo glad I took the gamble! It’s not completely soundproof of course.. I’ll still hear the occasional loud azz motorcycle every once in a while... but compared to what I was dealing with - the difference is night and day! I am very happy with these - going to get even more for my walls to drown out the outside sounds even more. 🤗 Yayyy!

I really like it easy to put on I love it but only thing I didn’t like it that smell nasty I don’t like smell

Work fine on concrete wall

This is a good buy for the price but it dose have some problems.They are thin and not super compact so they don't stick well, had to do a lot of work to make it stick properly. But for the price it's good. You get a lot of them and they do work 👍