• Standard-type earbuds:
  You can use them in a wide variety of situations.
• Swimming earbuds:
  They are to be used while swimming. The structure prevents water from entering the headphone components. If you use standard-type earbuds while swimming, water enters the headphone component and the sound becomes harder to hear.

Note

• The sound volume is lower with swimming earbuds than with the standard-type. Increase the volume as needed.
• When you replace the swimming earbuds with standard-type earbuds, the sound becomes louder. Adjust the volume so as not to hurt your eardrums.