I brought these for swimming and I've had a couple of problems. The
Bluetooth doesn't work very well through the water but the mp3 player part does
work well, though if it's connected to your phone before it'll try to change
back to Bluetooth workout prompting. The other issue I had was the water kind
of gets between your head and the speakers which makes it sound awful, so
I have to use a headband to keep the pressure which works. Overall, decent
amount of storage, a good sound when its pressed to your head correctly, and it
does work in a pool with a few extra steps so it's a pretty decent product