Disadvantages:
-I did not expect that you can hear music with the headset, as this description in some case stands. Unfortunately, this feature is not present, which is a huge fat MINUS, because I bought it only because of the.
-There are almost no instructions or statements or any of the direction of the Internet. This means you are made really discovering in yourself and you must first play around until you fed up with having Weil afterwards anyway not working.
On the whole:
With this headset, I'm pretty disappointed because you can not listen to music with it. Otherwise, it's very handy when making calls and for frequent callers it is idel suitable but when you make little and a lot of music listening-rather buy another, which one can do so.