My 17-year-old son got this since he knows hes a bit of a clutz and he says he loves it! There are no holes, its a slip in and adjust type. ?Quite comfortable to use?Wireless?Not noticeable input delay?Side buttons?Rechargeable (no batteries, woohoo! Im glad I did so, however, for this fits my gaming cans like a glove and without applying pressure to the foamy doughnuts. Entweder war die Laufzeit zu gering oder der Tragekomfort nicht wirklich da. Note that these headphones have an impedance of about 73 ohms, which means driving them directly through a mobile port may not give a very high volume (they will still work, just that the mobile phone amp needs to work harder). Bought this a half size bigger for added comfort. When it stopped working recently, I decided to try this less expensive wired option. CONS:None of any major concern. Update the 10 came and it fits good but the down fall is that the dye is rubbing off the shoes very bad!