I?ve worn them in separate rooms from my computer or phone without any interruption. As good as OEM for a third of the price. They lay crooked and dont slide down and out into the very small holding tray. I followed the wire where it leads into earphone #2 and it seems securely in place. However, one wants to wear sandals since its hot and we go back in August; yet you want to look professional. I have been using this for about 3 weeks now. 11w fits like a glove , very stable and easy to walk with. I weigh 80kgs and can jump up and down on this thing and it wont drop. They are so comfortable to wear and for people with foot problems, theyre wonderful. My son loves his new crocs.