Miracle-Ear MEENERGY iRHYTHM Manual De Usuario página 49

For Click Domes or Click Sleeves:
X Squeeze the tip of the ear piece.
Replacing
Replace standard ear pieces approximately every three months.
Replace them sooner if you notice cracks or other changes. The
procedure for exchanging standard ear pieces depends on the
type of ear piece. In section "Components and names", your
Hearing Care Specialist has marked your type of ear piece.
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