If I have noticed that I have been sent a narrow fitting sandal before I worn the sandals I would have been able to return them, now I can only hope that when my feet swell in the summer that I will still be able to wear them without them pinching my feet. I was optimistic that this product would work, as I did not want to use an extension to reduce the receiver size, but was disappointed that it was not machined / sized correctly as advertised. I spent a lot of time listening to one-sided cell phone conversations, inane chatter, jet engines, train noise and bad music in coffee shops and airport concourses. I love that it has the light! If I were a 9. I bought a pair of navy Capri v crocs and loves them immediately. That?s very good. It?s stretchy i normally wear a medium but will squeeze into a small any day. Great concept and easy to customize your shoes. The song I tested between these headphones was Ocean Man by Ween, because of the formidable range in pitch.