Sony INZONE Buds Help Manual page 54

While touching the touch sensor, the volume lowers step by step.
When the volume reaches the maximum or minimum, an alarm sounds.
Hint
Depending on the Bluetooth device, it may be necessary to adjust the volume or set the audio output setting on the device.
You can also listen to music by removing only one headset unit from the charging case and putting it into your ear.
Assign the music playback function to the touch sensor using "INZONE Hub" when operating music playback with the headset.
When you are listening to music with only one headset unit, if you put the other headset unit into the other ear, you can listen to
music with both headset units.
Note
You cannot adjust the volume with the headset when no music is playing.
If the communication condition is poor, the Bluetooth device may react incorrectly to the operation on the headset.
If the volume is turned down on the connected device while connected via Bluetooth connection, the volume cannot be turned up
very high using the headset. To turn the volume up higher, adjust the volume on the connected device.
Related Topic
Wearing the headset
Using only one headset unit
How to make a wireless connection to Bluetooth devices
Controlling the audio device (Bluetooth connection)
About the touch sensor
What you can do with "INZONE Hub"
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