Im sure it wouldve worked fine but I always use specialty wall anchors. When used with my iphone for phone calls the mic has to be held close to your mouth and I frequently was misheard/got complaints that I sounded distant. I need to make phone calls while protecting confidentiality in a noisy environment and these let me get the job done. I?m either going to need more then one or they need to put tracking device on it, or a way to ping it. Ive ordered another pair for my Mum. The shoes fit a bit bigger than usual for a size 9 and the color is more of a peach color than pink yet I do like the looks and lightness of the shoe. Seem to be wearing nicely and very quiet! After all, the Sonys all have such positive reviews. One the lens cover would not stay on. So far Im happy with my purchase.