BT microphone stuck at lowest quality (seheiser momentum wireless, windows 10)

Bought BT-headset. Using windows 10 and bluetooth found it immediatly and got it ruing. But the microphone is stuck at lowest quality (telephone).

got told to try disabling as much as possible under bluetooth services tab. I unchecked everything except "Handsfree telephony" Didn't work.

Any ideas?

Images

Headset Seheiser momentum wireless (www.seheiser.com/momentum-wireless/)

Bluetooth/Motherboard Gigabyte GA-Z87N-WIFI, Socket-1150 (www.gigabyte.com/products/product-page.aspx?pid=4600)