Sony WH-1000XM2/B Help Manual page 86

To decrease the volume: Swipe down repeatedly until the volume reaches the desired level.
If you hold your finger to the touch sensor control panel after swiping up or down, the volume continues to
change.
When the volume reaches the maximum or minimum, an alarm sounds.
To end the call, double-tap the touch sensor control panel lightly again.
4
If you received a call during music playback, music playback resumes automatically.
Hint
Some smartphones or mobile phones by default receive calls with the phone instead of the headset. With an HFP or HSP
connection, switch the call device to the headset by holding your finger to the touch sensor control panel until the device is
switched or by using your smartphone or mobile phone.
Volume for a call can be adjusted during a telephone conversation only.
Volume during a call and volume during music playback can be adjusted independently. Changing the call volume does not
change the volume of music playback, and vice versa.
Note
Depending on the smartphone or mobile phone, playback may not resume automatically even if you finish the call.
Use a smartphone or mobile phone at least 50 cm(19 3/4 in.) away from the headset. Noise may result if the headset and the
smartphone or mobile phone are too close.
Related Topic
How to make a wireless connection to BLUETOOTH devices
Making a call
Functions for a phone call
What you can do with "Sony | Headphones Connect" app
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