6 Pack Self-adhesive Acoustic Panels,15.75" X 31.5" X 0.47" Soundproof Wall Panels, High Density Beveled Edge Sound Absorbing Panels, Acoustic Treatment for Studio Home and Office (Black)

Used these in wife's office and our laundry room. They work great to dampen reflective sound on the metal cabinet and closet doors. Also used them to dampen the sound coming from the laundry room which is right next to the living room. Very noticeable difference in noise reduction. Works as advertised. Lightweight so I used 3M squares and did not need to peel the adhesive backing to mount. Easy to cut to fit. This is my second purchase of these. They work.

Excellent product, sticks wells to the wall , loooks great too , thnks

Well packaged and prompt delivery. Product performs well and adheres tightly to the wall where I easily installed three panels--in a small room that's not as well ventilated as a larger space. Nevertheless, it's months later and the panels still have an off-gas smell. It may help to air the panels outdoors first.

great quality, works perfectly as designed, and thank you for the care in packaging and speedy delivery.KindlyJoe

OK 100%

They do the job especially when having guests over around nosy neighbors. Although you can hear distinct sounds so not as well in quantity. The foam ones I hear are better

These are about 1/2" thick and are tapered on the edges. The entire back side is adhesive, just peel off the paper and stick them. It also comes with tape and a little level that you can use as a guide to install them perfectly.We're using them in the stairway from the basement where the music equipment is and they seem to quiet some of the noise that normally bounces up and into the main floor.

They are great for decor but not amazing for sound deadening. They hold fine on a vertical wall but do not hold on a vaulted angled ceiling. I had to use finishing nails to get them to stay, but I didn't necessarily expect them to hold on to the ceiling.