I have a pair of Samsung headphones with a mic, volume control, and pause/play button. I have used these headphones for over a year. They worked perfectly. Then one day, the right side decided to quit on me. The right side of the headphone is the one with the little control box. The left side plays sound perfectly fine. When I hold the volume button or pause/play button the right side turns on and I can hear out of both sides. There is no problem with the cord, just the right side.