Sony | Headphones ConnectHelp Guide

When you select [Determines Optimal Earbud Tips] from the Dashboard, the app measures how snugly the earbud tips attached to your headphones fit in your ears and automatically determines whether your headphones are fitting properly.

Assessing the earbud tips attached to your headphones

Select [Test the wearing condition] to assess whether the earbud tips attached to your headphones are the best fit for you.

Finding your optimal earbud tip size

Select [Compare all sizes] to find your optimal earbud tip size out of a number of sizes. It is recommended to first try out different earbud tip sizes on your headphones to narrow down your choices before selecting the sizes you may find comfortable.