How to connect a Xiaomi notebook to a Bluetooth headset:
1. Open the system settings in Win11 system and click to turn on Bluetooth and other devices.
2. Make sure the Bluetooth switch is turned on, and then click Add Device above.
3. Click the above item to add a Bluetooth device.
4. Find your Bluetooth headset device among the searched devices, then pair it and connect.
The above are the simple steps for connecting a Xiaomi notebook to a Bluetooth headset. Hope it helps!