How do I install the ear tips?
The headsets have small rubber washers on them. When you install the eartip onto the headset, you should be able to turn the eartip and lock it into place. If the washer has fallen off it will not lock into place.
This unit comes with 3 earpieces: a small, medium and large.
The replacement Ear tip Kit part number for the Voyager 510s is 69652-01.
The replacement Ear tip Kit part number for the CS70(N) is 72913-01.