Sony WF-SP900 Help Manual page 46

Help Guide
Wireless Stereo Headset
WF-SP900
Why does the sound become muffled when you swim?
The sound may become muffled in the following situations.
Water has penetrated the headphone sections from the gap between your ears and the headphone sections (
The earbuds may not fit your ears securely. Select earbuds with the appropriate size for each ear.
Water has penetrated and accumulated inside the player (
them to Swimming Earbuds.
How to remove the water if the sound becomes muffled
If the sound becomes muffled, remove the water as follows.
Remove the water from your ears.
Remove the water from the headphone sections (
Remove the earbuds from both units. Then, pat the headphone sections (
). If you are using the standard-type earbuds, switch
).
) lightly 5 to 10 times against a dry cloth.
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).