Digital Music PlayerNWZ-WS613/WS615

How the sound becomes muffled while you are swimming

The sound may become muffled in cases like those shown below.

  • When water gets into a gap between your ears and the headphones () and covers the eardrum ():

    You can prevent water penetration by using the most appropriate size of earbuds that fit your ears firmly.

  • When water accumulates in the drivers of the headphones ():

    You can prevent water penetration by using the Swimming earbuds (supplied).