Choose an ear bud that fits
When the ear bud fits properly, it should be sealed in your ear so that you feel a slight amount of resistance when you remove the headset from your ear.
1.Remove the headset from your ear.
. Gently twist the ear bud while pulling it off the speaker post.
. Press a different ear bud onto the speaker post with the stem side of the ear bud facing downward.
TIP: Try using different size ear buds on the headset and stereo
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Plantronics Voyager 855