The earbuds have a surprisingly decent battery life. However, when putting them in the charging port they're left charging or would turn on automatically which drains it. That and it has trouble connecting to the device if you're more than a foot away from it.
Best fitting over ear earbuds I have ever owned..and I've had a lot. They don't fallout during lifting or running sessions at all. There are a few kinks though. The right ear bud doesn't sit right in the case for charging and has to be manipulated manually with the case open. This also causes it to be in pairing mode and connect when u wouldn't want it to (while u are driving and they are in the case in your gym bag for example). Also, there are a lot of pairing breaks when you are moving, especially in a crowded gym...it's cuts in and out maybe do to other Bluetooth interference. If you are stationary it's fine.
I received these earbuds for Christmas they hardly ever connect to my phone. I have had to unpair and pair them multiple times. Even when I finally get them paired they rarely auto connect. Not only that, when I am finally able to get them to connect they skip and glitch out constantly. It is like listening to a scratched CD.