The Aux port is an Aux port. I have some wooden shoe stretchers that have helped but be prepared for different colors to feel completely different. So I went up a size, an 8, and gave my 7s to a friend. I can hardly handle keeping these on my head it is so loud. 5 in most brands and the 10 has no extra space). I RECOMMEND these 100%. We were missing one locking nut, but had extra washers and regular nuts. I?ll maybe get a month out of these if that. Ho trovato adatti per me i gommini più grandi, danno un livello di isolamento discreto, non eccelso. After my second cycling crash, the same urgent care doctor who saw me the first time wrote me a prescription.