An earache occurs.

  • If you feel the size of the earbud tips does not fit your ears, change the earbud tips. When changing the earbud tips, try the earbud tip sizes in order from the larger ones to the smaller ones. The most suitable size of the earbud tips for left and right ears may be different.
    INZONE Hub” or the “Sony | Headphones Connect” app will help you to determine which earbud tips suit you best to achieve the optimal noise canceling effect, sound quality, etc.
  • Check that you are wearing the headset properly in your ears.
  • If you wear the headset for a long time, your ears may start hurting. Use the headset while taking breaks periodically.


  • The function that determines the optimal earbud tips for you measures the air-tightness of the earbud tips and determines whether or not the headset units are being worn in your ears correctly. Select a size that fits comfortably.