How to maximize wearing comfort and select earbud tips (WF-1000XM4 - Linkbuds S)

IMPORTANT: This article applies only to specific products and/or operating systems. Check Applicable Products and Categories for details.

The following points are important in order to maximize the sound quality, noise canceling function, and call sound quality:

• Wear the headphones properly
• Select most suitable earbud tips

If the size of the earbud tips does not match the size of your ear canals, or the headphones are not properly worn on your ears, you may not obtain proper performances of the headphones.

• Wearing the headphones properly
• Measure the air-tightness of the earbud tips
• Check the optimal size of earbud tips

Wearing the headphones properly

To wear the headphones, gently pull up on the top of your ears, put the earbud tips in your ear canal, and twist the headphones into place. Doing this make easy to make sure the headphones are properly and firmly in the ear canal.

When using the Noise Isolation Earbud Tips with the headphones, the tips will alter their shape to fit in your ears. Wait for about 10 seconds for the earbud tip shape to stabilize, then check whether they fit in your ears and if the effect of noise canceling function is sufficient. If you feel the headphone earbud tips do not fit with your ears as you would like, or the effect of noise canceling function is not sufficient, remove and reinsert the headphones, making sure the earbud tips fit snugly in your ears.

Note: For how to wear the headphones, refer to the following:

WF-1000XM4

LinkBuds S

Measure the air-tightness of the earbud tips

You can measure the air-tightness of the earbud tips using the Determines Optimal Earbud Tips function of the Headphones Connect app.
Note: The images below are examples using the WF-1000XM4.

1. Start the Headphones Connect app, then connect with the smartphone via Bluetooth.
2. Select the System tab, then select Determines Optimal Earbud Tips.
   Note: If a message appears, touch OK.
   
3. Select TEST THE WEARING CONDITION, then wear the headphones by following the instructions on the screen.
4. Select START, then wait for the test to complete.
   Note: Perform measurements at a quiet location and make sure not to move while measuring.
5. Check the results of the measurement
   Note: If the headphones are correctly worn on your ears, and the earbud tips are fit in your ears, Earbud tips are air-tight is displayed. If the other message is displayed, try wearing the headphones referring to the Wearing the headphones properly section, or try other size earbud tips, then measure again.
   

Check the optimal size of earbud tips

Different sizes of earbud tips are supplied to allow you to achieve the maximum effects of the headphones. Ear canals vary in size from person to person, and can also vary in size from the left to the right sides. Use the Determines Optimal Earbud Tips function of the Headphones Connect app to check the size of the earbud tips that best fits your ears.

Note: The Determines Optimal Earbud Tips function measures how snugly the earbud tips fit in your ears to achieve the optimal noise cancellation effect and sound quality. Select a proper size that feels comfortable when worn before using the headphones.

1. Start the Headphones Connect app, then connect with the smartphone via Bluetooth.
2. Select System, then select Determines Optimal Earbud Tips.
   Note: If a message appears, select OK.
   
3. Select COMPARE ALL SIZES.
4. Select 2 or more sizes that fit and you can wear comfortably among the 3 size options (S, M, L), then select NEXT.
   
5. Follow the instructions on the screen, then attach the first size earbud tips and wear them on your ear.
   Note: For how to remove or attach the earbud tips, refer to the Notes on using the Noise Isolation Earbud Tips (WF-1000XM4, EP-NI1000) article.
6. Select Start.
   Note: Perform these measurements in quiet location, and make sure not to move while measuring.
7. After the measurement is completed, repeat the process for each of the different size earbud tips.
   Note: Measure all the earbud tip sizes checked in step 4. Repeat the measurement in the steps 5 to 6.
8. When all measurements are complete, check the measurement results. Earbud tips of the size that best fit to your ears will be displayed.