Get the right fit with your Beats earphones
Beats earphones come with ear tips in a variety of sizes. Choose a pair that feels secure and make a good seal with your ear canal to ensure the best sound quality and noise cancellation (on supported devices).
If you’re using Beats Fit Pro or Powerbeats Pro 2, you can use the Ear Tip Fit Test to get the fit that suits you best.
If you’re not sure that you’re getting the best possible seal and sound quality, you can run the fit detection test.

Wear your Beats and make sure they’re connected to your iPhone or iPad.
Go to Settings
on your iPhone or iPad, then tap the name of your Beats near the top of the screen.
Make sure that Automatic Ear Detection is turned on.
Tap Ear Tip Fit Test, then follow the onscreen instructions.
For more information about fit and potential skin sensitivities, see the Support article Wearing your AirPods, EarPods, or Beats devices.