For perspective, I am an adult multi-discipline engineer. (I would have given you 5 stars if I had received them all. Ive tried more than several pair of a leading brand of shoes for diabetics with little to no success; last pair I bought were just outright painful and I had to return them. This will require some drilling because each saddle is bolted into the support arm. What I like most about these headphones is that when you plug them in the glow on the left and the right. I’ll admit it doesn’t happen often though. Mounted on stock cross bars on an 07 Subaru Forester, hauled 2 sets of skis and 1 snowboard. these slippers say 13 but there not they are so tight ! In One Republic’s “Secrets”, I could clearly hear the cello background even when they reached the chorus, when usually in my normal earphones, the cello background would have been drowned out by the chorus. It does what i need it to do, but i find it cumbersome.