Hi Daniel_ZB,
Thank you for reaching Microsoft Community. Apologies for the inconvenience this has caused you.
Were you able to install the Microsoft Accessory Center app on your PC? if not yet, please install the app and follow the steps provided here in setting up: Set up Microsoft Modern Wireless Headset. After settings up, please make sure to update the headset.
If still the issue persist after updating, please do a hardware reset on the headset following the steps below and set it up again:
- Plug in your headset using the USB cable.
- Slide the Power button on to turn on your headset.
- Press and hold the Answer/end call button for more than 10 seconds. While still holding down the Answer/end call button, press and release the Bluetooth pairing button.
You'll hear a message saying your headset is on and how much battery you have left. - Release the Answer/end call button.
Check this page also in using the headset on Microsoft Teams: Use Microsoft Modern Wireless Headset in Microsoft Teams.
Kind regards,
Marrion