Advanced Bionics M Listening Check CI-5827 Mode D'emploi page 17

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.
Turn one piece 90 degrees, align the AB logo piece to slide
into the other piece. Push together until it snaps into place.
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