I assume the person at the factor who made this shaft has no idea how to do it, did it wrong their first try, and didnt care and threw it in the finished pile. theyre perfect for lounging around the house. Also at times the Quest fails to register my hand movements altogether. I?ll admit I have nice 25 year old skin apart from hyperpigmentation and acne scars from teen years. Nirvana for an audiophile is hearing something youve never heard before in a recording, and I did, in the Jayhawks Bad Time with percussion in the right channel Id never noticed before. Dries very quickly when its wet and easy to pack and travel with. Great boots for working in the muck. Nothing fancy about these headphones; they look just like the ones I?m replacing. But its sturdy! But when Im out and about, Im ok with hearing some ambient sound.