The idea was to use these at the gym and at running, but the handsets are so nice and flexible that they have competed out my Sennheizer which is in the 2000 SEK class, I use them for everyday now.
The sound is more than approved for this price level I think.
Disadvantages? Well, holding down the button for four seconds to turn off the headphones is unnecessarily long. And maybe there are some high intervals between the levels of the volume. But these are details that do not really affect either the use or the statement above.
However, the handsets are not suitable for taking calls, the call quality is lousy according to the opposite party. Bad microphone simply. But by the way, a very good buy!