4 PCS Acoustic Panels, 2“ Thick 23.6" x 11.8" Fiberglass Sound Absorbing Panels, Soundproof Panels for Studios, Office, Home Theater. Charcoal Grey

I was trying to dial in the "sound" (or lack of it) in my new voiceover booth and the acoustic "eggcrate" foam wasn't doing the job and looked dated (a lot of sessions are now done via video so the "look" of a booth is now an important criteria), so I purchased those panels. They installed easily, look great and sound great as well. I put four on each side and they made a huge difference :-)

Easy to install & they absorb most if not all of the echo & reflection distortion, made a huge difference in my surround system & my system is high quality with a dedicated OSD nero xa 5180 . my system is performing better than ever before with these panels & other foam sound absorption 12×12 panels

Panels work great. No smell, arrive assembled you just need to mark the wall using template provided an easy secure mounting. Very happy with the reduction in conversation carryover with my wife’s office on other side of the wall.

Our clinic has barn doors which look great aesthetically but are not great for sound so we tried these out. I was skeptical they would work but I'm pleasantly surprised. Only complaint is the first few days after putting them on the wall a few would randomly fall off. Definitely recommend letting these acclimate in the room for a day or two before sticking them up. But overall very happy. We bought more for each exam room.

The panels work well and are pretty good quality but the adhesive is quite bad. I stuck 5 of the panels on the wall, all side by side, and within a few days they all fell. After about 10 hours after putting them up, the first panel fell onto one of my monitors breaking it. 2 days later, the other 4 fell at almost the same time. I would still recommend getting these, but just make sure you have another way to mount them to the wall instead of relying purely on the adhesion tape. Also the panels appear to have no mount on the back to screw them in.

My stairwell use to be an echo chamber for every sound inside and outside my house. Hung these panels up and it is noticeably quieter. They also function to balance out the stairwell with my art on the other side. They are very durable and look very nice. The adhesive left something to be desired, so I just super glued picture hangers on the back and hung them that way.

For my case they do a decent job. It’s not because the product isn’t good, it’s because I place them centered for aesthetics/design. In that wall I have two desks. The results can be better if placed right in front or behind your sound source. Easy to install, let’s see how long they stay up

Avoid! Last time I bought these, it was nice and easy to install with a simple adhesive backing. Now it involves construction. I absolutely would not have bought them if I knew this. Bait and switch products are the worst.

Excellent quality panels and excellent customer service. These panels definitely help to reduce echoes and reverberation in my home theatre room. I can't say enough about their customer service. I contacted customer service as I was looking for advice on an alternate way to hang these panels. I did not want to permanently stick the panels to the wall. Upon asking, they then explained that they have brackets for these panels. They then proceeded to send me the hangers free of charge. The brackets were pretty straightforward and easy to hang. I couldn't be happier.

After buying a new TV, it's sound comes from the whole screen. The problem is as much sound comes out the back as the front. A loudspeaker would kill all the rear sound by having absorbent material at the rear. I put these directly behind the TV, it killed dead any rear reflections. A bit expensive, but it worked.

Overpriced, and at best moderately effective.

My brand new piano resonates strongly since I fitted in a tight space with three walls surrounding it. The reverb and high notes are not bareable at all in my music ear. Trying those panel out and they worked! I can finally enjoy my new piano!! Highly recommend to players struggles with the resonating sound. Easy install and 3M sticks to the wall with ease and item is lightweight yet felt premium in quality.

One year later and still stuck to the wall. Helped reduce the noise around the laundry room..