Sony WF-1000XM4 Manual page 49

You will hear the voice guidance say, "Bluetooth pairing", from both headset units.
Wake the computer up if the computer is in standby (sleep) or hibernation mode.
3
Register the headset using the computer.
4
Move the mouse pointer to the top-right corner of the screen (when using a touch panel, swipe from the right
1.
edge of the screen), then select [Settings] from the Charm Bar.
Select [Change PC Settings] of the [Settings] charm.
2.
3. Select [PC and devices] of the [PC Settings] screen.
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