Sony WH-XB900N Help Manual page 86

Adjust the volume by operating the touch sensor control panel.
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To increase the volume: Swipe up repeatedly until the volume reaches the desired level.
To decrease the volume: Swipe down repeatedly until the volume reaches the desired level.
To change the volume continuously: Swipe up or down and hold. Release at the desired level.
When the volume reaches the maximum or minimum, an alarm sounds.
To end the call, double-tap the touch sensor control panel lightly again.
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If you received a call during music playback, music playback resumes automatically after ending the call.
Hint
Some smartphones or mobile phones receive calls with the phone instead of the headset by default. With an HFP or HSP
connection, switch the call by holding your finger to the headset's touch sensor control panel until it switches, or by using your
smartphone or mobile phone.
Volume for a call can be adjusted during a telephone conversation only.
The headset volume during a call and during music playback can be independently adjusted. Changing the call volume does not
change the volume of music playback and vice versa.
Note
Depending on the smartphone or mobile phone, when an incoming call arrives while you are listening to music, playback may not
resume automatically even if you finish the call.
Use a smartphone or mobile phone at least 50 cm (19.69 in.) away from the headset. Noise may result if the smartphone or
mobile phone are too close to the headset.
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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