Sony NW-WM1Z Instruction Manual page 53

AVLS prevents disturbances to others caused by loud volumes.
AVLS allows you to listen at a more comfortable volume.
1.
Tap the menu items in the following order.
– [Settings] – [Output Settings] ([Basic Settings]).
2.
Tap [AVLS (Volume Limit)] ([Headphone Output]) to add a check mark.
Note
[AVLS (Volume Limit)] does not work while there is an active Bluetooth connection.
The contents of the Help Guide may be subject to change without notice due to updates to the product's specifications.
Related Topic
Volume operation in compliance with European and Korean Directives
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