OTOFONIX Helix User Manual page 7

Mark a line on the tube
just ABOVE the bottom
of the Earhook
Cut the tube at the
marked line
Place the amplifier with the attached Earhook
over the ear and the assembled thick tube with
dome into the ear canal. Trim the tube as
illustrated and insert the cut end into the Earhook.
Push the cut end of the
tube onto the Earhook