The resistance to ear to ear is very good, latténuation of background noise is effective, autonomy is suitable, it is fairly simple to use and very convenient to use (several options to win, possibility to couple with two phones at the same time, etc ...).
I have a few things to complain about anyway, the listening volume seems too low, I think the part that is behind the ear a little too thick (it's pretty uncomfortable especially with glasses), the cable Charging is too short and lack of physical manual make it pass near the free-faults.
