Sony NWZ-W274S - Manual (Page 20)

If the sound becomes muffled during swimming
Water inside your ears or headphones may cause the sound to be muffled.
Removing the water from your ears (Applicable to
and )
Remove the water from your ears.
Removing the water from earbuds (Applicable to
)
Remove the water from your earbuds.
When you are using standard-type earbuds, remove the water as follows:
Hold the headphones with their openings facing down and pat the hand
holding the headphones against your wrist 5 to 10 times to remove the
water as shown.
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