I purchased Sony - XB50BS Extra Bass Sports Wireless In-Ear Headphones - Black shortly after Christmas for myself. I use them for 1-2 hours a day. A few days ago I noticed that the soft plastic "button" over the power switch had popped off. I have to use a pin to turn the power to the headphones on/off. I have also had the plastic piece over the volume controls come off a well, but luckily I felt it and was able to push it back into place before I lost that as well. These are advertised for athletics and as an active person I'm disappointed that they have held up for only 2 months. I would like a replacement or to have them repaired.