MIX AND MATCH FOR BEST FIT
If the gel eartip feels loose or tight in your ear, then change it. To replace the medium gel eartip for small or large, pull the loop of the gel eartip to remove it. (Don’t pull on the speaker base and stem.)
Using your thumb, tuck the bottom of the eartip over the speaker and pull the loop of the eartip over the speaker. (Don’t push the speaker through the gel eartip.)
If you aren’t familiar with this style of gel eartip, clip on the earloop to the stem for extra stability.
VIDEO TUTORIAL:
www.plantronics.com/M100fit