Tienen muy buen sonido, pero no es el mejor. I used two different size hook strips just to hold a broom against the wall and it fell both times, I used a small hook that is described good for keys, i put my keys on it and it fell off the wall both times. The soles inside are really soft and I have even thought of using them as slippers. Update: I’ve ordered and reordered 2 more of these for my husband and sister, thinking the first failure was a fluke. Lazy review warning :) I wrote a lengthy review for this company’s products. I do like that it fits over the ears so the ears dont get smushed. Easy to put on, super secure, easy to remove to adjust bar height. Easy assembly and sturdy. En cusnto a la comodidad, al tener almohadillas de diferentes tamaños, se acoplan bien al oído y además tienen un gancho para la oreja para que no se caigan (un acierto para los runners). I have glasses and they dont hurt the sides of my head or my ears which is great!