This is my first pair of cupping headphones so they will take a little time to adjust to. El velcro de detrás no me ha dado ningún tirón de cabello ni nada parecido, funciona muy bien y lo puedes apretar cuanto desees. They even adjust on their feet to accommodate our sloping basement floor to appear even on the top. Even when installed rubber is too hard to mold around your ears and doesnt provide a good seal. One aspect they got wrong was the switches, I had ordered the yellow silent switches and they sent me the mechanical loud switches. Super qualité. They wipe off very nicely with bleach wipes, have the anti-slip grip on the bottom(which has saved me multiple times! I never developed any blisters, but after the first night of wearing them I got a pedi and the hot water burned where the straps were, so they did rub a little but nothing more painful than that. from presentation to performance. Klang ist immer rein subjektiver Natur und nur du selber entscheidest darüber was dir persönlich gefällt oder eben nicht!