I decided i might have to grind the adapter to make it fit, rather than taking the rack apart and send it back (having thrown away the box already). Its been two months sense Ive ordered and started wearing them around the house. It would be super useful if youre chatting with your friends while eating something or just listening to music. I wish the batteries lasted longer, for me 4 hours needs to be 6. These are the first very reasonable shoes Ive found since high school that fit me. I tried the Alice Mary Jane (also crocs) but those didnt work for me. I also have very narrow feet but these would fit wide feet as well. Edit/UpdateI originally gave this a lower score as it emitted a very distracting whining noise and I was ready to send it back for a refund. Very good work shoes, feet barely hurt at the end of 9 hour work day. The promise of the controller was much better than the product.