Very light, with excellent fit. With the greatest essay it fits me perfectly, without fumbling.
Audio quality is very good with me, the interlocutors find the tone slightly musty, but understand me well even in unstable environments.
Standby and talk time roughly correspond to the specifications, and the charge in the case also works as promised.
The bottom line 4.5 stars - 4 would not be appropriate, so I round on 5 on.