I don?t know why that happens. I wear a 6W so hard to find someone who can fit them. You wont go wrong. Yesterday, she told me that she liked the thing that they are not heavy at all, therefore she could easily wear them for longer hours without feeling any pain in her ears or neck. Transformed my wardrobes - very easy to install and seem to glide in and out very well despite significant weight of clothes! I also dont have to worry about getting them wet. Seems well built and the video and photo quality is quite exceptional. Absolutely love perfect fit Ugh. Dont get me wrong, it is there but for bass lovers, it will sound much as flat.