I have paid good money on three separate models of jaybirds and all of them stopped working within 2 months of use. I used them for working out and took the necessay precautions to ensure they were well maintained but none of them were worth the money considering how short there lifespan was. I forget what the first model was, but I did save the last two boxes. One was an x 2 and the most recent one was the Freedom Wireless.