While cycling in the nearby Forest Preserve, my right ear bud popped out of my ear and I could not locate it. I tried everything but no go. However it was resolved when Google was able to send me a right earbud. Just the right earbud and that's all. So I ordered it yesterday it is arriving today. It cost $65. The moral of this story, is to make sure that the earbud is well positioned your ear. I'm a considering putting a Band-Aid over them when I'm under difficult conditions.