Advanced Bionics M Listening Check CI-5827 Mode D'emploi page 12

Turn one piece 90 degrees, align the AB logo piece to slide
into the other piece. Push together until it snaps into place.
Note: The M Listening Check requires a charged
power source to function correctly. If the power source
being used to conduct the listening check has been
depleted to an inadequate charge level, the user will
not be able to complete the task. If the user attaches
a discharged rechargeable M Battery or a discharged
M Zn-Air Battery Pak, no sound will be heard through
the Listening Check Earbuds.
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