I purchased this device several months ago. It is a really nice concept and I enjoyed using the product while it worked. Unfortunately, I went to charge the receiver part last week and found that it would not take a charge. I expect something like this to last for years ... not months.

The concept is great. Unfortunately the quality isn't. I used it at the gym constantly and I loved not having the wires everywhere. It was small and unobtrusive, so it didn't get in the way and it worked great. Unfortunately within three months the rechargable battery stopped taking a charge and the clip broke. That's what you get for buying refurbished junk.