Sony WF-SP900 Help Manual page 21

To prevent the player from turning on accidentally
Do not cover the proximity sensors (
hands as your ears. In this case, the player will turn on, but the lamps (
Hint
The lamps ( ) do not light up when you put the player on your ears. When you are wearing the player, you will hear the voice
guidance.
You can also turn the power on by putting both units on your ears.
The player does not have a button to turn the power on or off. Be sure to store the player inside the charging case to turn off the
player when the player is not in use.
When the player is not on your ears and you pause playback, the lamps (
minutes after the last operation. To turn on the player, place the player on your ears.
The contents of the Help Guide may be subject to change without notice due to updates to the product's specifications.
Related Topic
Confirming statuses from the lamps on the player
Parts and controls
) with your hands for long periods. The player may mistakenly recognize your
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21
) will not light up.
) and the player turn off automatically about 5