DEKIRU Sound Proof Padding Foam Panels, 2" X 12" X 12" Acoustic Panel Studio Foam Pyramid Tiles Sound Absorbing Dampening Foam Panels Wall Soundproofing Treatment with tapes (12 PACK, Black)

The tape is not 3M tape so it is trash don't waste your time as I did today now I have to go buy 3M tape

Bought this to dampen some dead space around my blower that was pulling air from a vent in my living room. They took exactly 1 day to fully inflate and seemed to be of very high quality. They have definitely lower the sound coming from the vent area considerably. (Wish I took a dB reading before an after) To give you some assurance my surround sound system used to be on at least a volume of 10 to hear my tv and now I can comfortably put it on around a 7 while the AC unit is running.-1 star though because peeling the double sided tape for set up was a PAIN. This was the longest part of the installation process. BUT they are legit 3M stickies and hold up well from what I can tell (purchased a few weeks ago and still holding strong) Would recommend this for noise reduction for AC ventilation. I'll try and add a picture..

I have used the expensive Auralex foam pieces which are much more dense and effective at dampening reverb but they are just so expensive. I bought three sets of these for a 500 sq ft apartment and I can definitely tell the difference in the reduction of higher frequencies bouncing off the walls. I didn't use the adhesive pieces and instead decided to nail them to the wall which actually made centering things pretty easy and added a nice little metal accent to the look. I didn't have any major issues with them getting back to shape.

The foam pads themselves are not that bad. Let’s be clear. These are to be used for Echoes and reverberation. Not Soundproofing! Big difference.My only complaint is the 3M double-sided tape they provide which is absolutely horrible or I have big fat clumsy fingers.Pain in the ass trying to separate the too . I have to order new double sided tape. I can’t get these to work again maybe I just have big fat clumsy fingers or they just suck! , just saying.

It sucks trying to stick these to a wall. But they are vacuum sealed but expand quickly and work great and help with room acoustics.

I'd love to be able to rate the "noise cancellation" part but the "3M adhesive strips" that are provided are not only an astronomical pain in the ass to peel but simply don't stick to the soundproofing tiles.They DO however stick to the wall which is what I now have to deal with. 144 little sticky reminders of why I should have never wasted a penny on this product.I must have forgotten that if something looks too good to be true, it likely is.Unbelievably disappointing!

We can not keep them on the wall...the sticky stuff sticks to the wall...not the foam.

They all work great. Soak them in water, use a blow dryer and they decompress easily.