Very uncomfortable, no longer even hear what is happening around us, as saying that it is dangerous (and I have not asked for quiess balls ...), the sound quality is poor at will, headphones do not keep up, they fall all the time and they are not even detected by a Samsung Galaxy S3 phone placed next ...
In short! As much invest in high-end as the Jaybird BlueBuds X or The Dash, Bragi, for there is a great scam.