I bought these a couple of years ago and I've used them in many situations: running, basketball, gym and they've always been comfortable, battery is not amazing but enough for the length of my sessions, sound is decent when the seal is good. However, I'm giving it a 2 star review because now, after only 2 years of use, the headset has completely broken apart: the rubber covering the whole thing first cracked on the right side ear hook making it impossible to wear, I put some tape on it and could wear it for a few weeks longer, but then the other side broke too, exposing the magnet inside, at this point the headset is beyond saving, don't buy these if you're looking for a durable product as it's a common problem (do a quick search and you'll find many cases of the same)

When they work correctly, they have proved very useful. When they don't, they are very frustrating.

I bought this almost 2 months ago....and one thing that I have noticed is that it has very very low bass and a very high pitch...which kinda irritates ears... But is very good for movies coz movies sound very crisp... And for the water part....havent used it while swimming but during shower too the sound kindaa fades so have to remove them half way