Moukey Acoustic Panels 4 PCS, 2.4“ Thick Fiberglass Soundproof Wall Panels 24''x12'', Self-adhesive Sound Absorbing Panels for Studios, Office, Home Theater (Black)

We'll have to see how the adhesive backing holds up in the long run, but these were easy to install and they seem to be doing the job. Just give them a firm press across the surface and they stay up quite well. My room is a little large considering the size of these panels but they seem to have reduced the echo considerably - and they just look cool if anything else. Pulling them off the wall to re-arrange them also didn't leave any residue from what I could tell. Price seems fair considering what other options are going for but be prepared to drop some money if you feel the need to line an entire space with these.

These are simply one of the best sound absorbers I've ever come across. These are EXTREMELY easy to install and the adhesive protection film comes off very smoothly in one piece. They are thick as advertised and look great on the wall as a sound absorption decoration! I have these set up near my computer to help reduce my voice bouncing off the wall and WOW did it make a difference between absorbing my voice and the fan noises from my computer. These are simply one of the greatest sound absorption products I've had the chance to use and i strongly recommend them!

These are a great value for panels that are attractive, effective and very easy to install. They look nice as their color is neutral and they temper the sound as expected. I recommend reading a bit about placement strategy before sticking these up.

I have used other acoustic panels previous to these. These are by far the thickest I've used yet. Nearly two and a half inches thick, these do a fair job of dampening noise and echo.It remains to be seen how well the adhesive holds up.

These are very heavy duty soundproofing panels for a theater room. They really work and I recommend them.

I put these in my movie room. They work by absorbing extra sound vibrations. Next time you go to a top rate movie theater look at the side walks. These are made from the same type of material. I really does help the sound, just experiment on placement.