Advanced Bionics Sky CI M90 Mode D'emploi page 56

Remove the sound processor from the M Listening Check. Reconnect
the M Battery to sound processor and select desired settings for use.
To close the M Listening Check when not in use, remove earbuds, and
then grasp the grip indents on the side of the M Listening Check with
one hand while grasping the sound processor and battery interfaces
with the other hand. Carefully pull your hands apart until the two pieces
disconnect.
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