24 Pack-12 x 12 x 2 Inches Pyramid Designed Acoustic Foam Panels, Sound Proof Foam Panels Black, High Density and Fire Resistant Acoustic Panels, Sound Panels, Studio Foam for Wall and CeilingClimatePartner certified

Would've been nice to know the wall tiles don't come with adhesive but the shipping was extremely fast and they work great. Not the perfect solution to noise but helps to muffle loud sounds you dont want everyone to hear.

These work really well. I didn't wait 2 days. I had them ready to post up within 6 hours. After pulling it out of the plastic they began to rise by themselves. I quicken the process by simply gently pulling the stubborn corners in each direction. I also got them to fluff evenly all around by gently tugging opposite corners as well as the mid left side to right side. Pulling too hard would probably rip it.To rid of the smell quickly I stood each square upright in my bathroom-- some against the wall, and some leaning on each other-- so it can air out. The major thing that helped here is that I have an exhaust fan in the bathroom, and so by closing the door it sucked air through the foam even more quickly. Didn't have to stink up the house or leave it outside where allergens might grab on.As for adhesion, the thing that worked for me was letting spray adhesive on the backside, and then using velcro with the adhesive backs on them.This doesn't cancel out noise completely like some people expect here... but it definitely does a great job dampening to a large extent. I have thin windows, and the neighbor hasn't had a problem with me since.

I purchased these to put on a window facing a very noisy street. They help reduce the noise a bit but I also have sealed the window and put up a noise reducing curtain so I am unsure how much noise they are actually blocking. They don't have glue or glue backing, so I had to this myself, which is fine but my main issue is the fumes emitted from the chemicals on them. The first night I slept with them on the window I had a horrible migraine from the fumes. I thought about returning them but I really need them because the street noise is unbearable on my bedroom. I've been aerating the room and running two air purifiers but night 3, I have a migraine again from the fumes. If it keeps happening I may need to reconsider.

I'm a music producer and have worked in studios for 20+ years so I know acoustic panels.Let's get one thing out of the way: these are beyond cheap. Half of them didn't inflate, yet just enough did that I can't force them back into the box so I can't even return them for a refund. They do not have adhesive and are not easy to mount.All acoustic foam I've ever used are made of thick material and you can immediately hear a difference after installation. Most panels of this size are designed for absorbing and diffusing sound in the mid and high frequency ranges. After testing using a microphone, there isn't much of any difference without without the panels.I only bought these to use in an AirBnb for a month and even so I'm disappointed. These are completely useless and un-returnable.

Have not noticed a difference in sound. Keep falling off the walls.

Sound dampening adequate for price point. EZ PZ to cut to shape for interior closets.APPLICATION : Wasted ! = moneys for double-sided tape, augmented by gorilla adhesive.BEST APPLICATION : Arrow T50 staples 3/8 in. 2 - 3 zaps to a square.Hence. : 1. Strategically placed, no show. 2. No worries of Tape or Glue destroying paint.To remove squares, tear off & gingerly remove 2 or 3 staples.

Not the prettiest but it works well! Work from home with multiple dogs and family lives with me. Does not make things "sound proof" but but drastically reduces background noises for studying zoom calls etc

EASY TO INSTALL WITH ADHESIVE TAPE. CUTS BASS FROM BEHIND THE DRUMS WELL. STANDARD FOAM QUALITY