Sonically good, but some things annoy.

+ The sound is impeccable. The headphones also enters reasonably tight, so annoying noises from the outside not so much consequence.
+ The range is ok, I also have two floors no problems.

Nevertheless, there are some things that, unfortunately tarnish the good impression:

- The headphone "forgets" to every time the preset volume. This means that I can not turn it on while I wear it, because otherwise he would probably bring me the eardrum to burst.

- After a gestation period of headphones pushing something, the material is probably not too high 'it makes when moving now and then sounds.

(-) This point may be very subjective, but I get some time on the right ear feel like I'm sitting in an airplane. But that is probably less on the device, as to my ears. Where it was not so with my old analog headphones.

All in all, the headset quite useful, the point with the volume setting may be permanent but really annoying.