Summary: I bought these a month and a half ago. I had to replace them a week after i bought them because the first set refused to take a charge. I thought it was a fluke. Six weeks later my second set has done the same thing. I decided to google "jaybirds won't take a charge" and lo and behold there is a world of folks out there who have bought these headsets and are holding a hundred and fifty dollar pair of junk.
Summary: I purchased these headphones for athletics from running to weight lifting. They have had nothing but problems. My first pair broke after 2 months of use and the replacement pair broke around 2 months as well. The green light when fully charged would come on stating that the earphones were fully charged and they would not have a charge at all after 5 minutes of use.
Summary: After months of irritation with my iPhone's stock earbuds, I decided to upgrade to a pair of bluetooth buds. My primary motivation was ridding myself of the pesky cord that was always getting caught on everything as I got on and off the subway. I did a lot of research and finally settled on the Jaybirds. Sadly, I traded one problem for numerous new problems.
Pros: good battery life
Cons: terrible fit, won't stay in ears, uncomfortable, expensive
Summary: I bought those headphones about 4 months ago and used them with great pleasure for about 3 months, when all of a sudden the battery lasted for only for 25 minutes (with full charge) then 15 minutes....then 5 minutes....now they will not even turn on. Totally disappointed by this investment. Not fair...sorry! But while I used them they were awesome - delivering the best music experience cordless..
Summary: The first set died in four weeks and the second set in three months. I have the third pairs now and waiting for when will happen again. I think they are not completely sweat proof. Because they both died during running. Replacement is a big issue, if you live a country where there is no jaybird support and apple store. I replaced my third pair in Hong Kong apple store where i bought it. They first refused to replace it, then changed their mind.
Summary: I was given a pair of these earbuds as a gift in February. Once properly fitted and paired they work great. Unfortunately, I've had 3 pairs quit on me. I wear them running and they get very wet from sweat, I'm assuming this is the problem. All 3 pairs quit mid workout and would not power back on (after a full charge). I really like them, when they work, but unfortunately I've had it with them. Time to move on.