I got these to go on the wall behind my TV when I noticed my TV sound reverberated a bit outside my house. (I like quiet and didn't want to disturb neighbors if they were on their deck.) Well, turns out the clarity of voices/what was being said sharpened dramatically for me so I don't have to turn the volume up so much. Really amazing benefit I hadn't expected or what I got them for. As an aside, I just tacked them up with sewing T pins, which is all you need and unobtrusive.