We bought a few pairs last year and my family digs em. I can't seem to get my iPad connected most of the time. Likely something I'm not doing correctly. But the few times I've used them they sounded pretty good-better than most ear buds, not as good as a few. My wife and daughter tell me the battery life is very good, and charging is easy too. They're worth the price to give them a try IMHO.
(After 40 or more years standing next to drums, I've resorted to using a pair of
AKG K553 MkII over-ear headphones and just bite the bullet when I travel, and throw them in my briefcase. I also have a nice pair of
Sennheiser HD280 Pro's that I use from time to time, especially when mixing. Between two pairs of headphones, my Yamaha monitors and the audio system in my truck, I usually get a pretty good read on the mix.)