For better sound (Change earpieces)

The size of the earpieces affects the audio quality (music playback, calls) and comfort. Select a size that is comfortable and fits well in both ears.
The illustrations use EAH-AZ60M2 as an example.
1.
Remove the earpiece.
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Hold the earpiece and pull out while twisting slightly.
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2.
Attach the earpiece.
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Make sure that the earpiece is firmly attached and not slanted.
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Note:
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The size of the earpieces that fit your ears may differ between the left and right.
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Select the earpieces that provide the best noise cancelling.
EAH-AZ80/EAH-AZ60M2: Selecting the best earpiece for Active Noise Cancelling (EAH-AZ80/EAH-AZ60M2)