Feedback my interlocutor on the phone: I'm very well and clearly understood the background sounds were not audible during call in Regional Express. Thus, the microphone seems to be running very well, so the headset is very well suited for use as such.
The cable length is super. I'm 1.80m and can be very enjoyable carry the phone in your pocket and listen / talk music. Through stiff design it gets tangled up only slightly. For contact sounds are transmitted into the earphones.
I am satisfied with the purchase.