HP Pavilion x360 Maintenance And Service Manual page 15

Item Component
(5) Volume button
Description
NOTE: Be sure that the device cable has a 4-conductor
connector that supports both audio-out (headphone) and audio-
in (microphone).
Controls speaker volume.
To decrease speaker volume, press the – edge of the button.
To increase speaker volume, press the + edge of the button.
Left side 9