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Preparation
battery Indicator Tones
An indicator will sound when the battery’s voltage
is low. You have approximately 10 minutes* to
replace the battery. A different tone lasting
two seconds will sound just before the battery
stops working.
* Actual time between low battery indicator and shut
down will vary depending on environmental noise
levels and brand of battery used.
Tamper Resistant battery Compartment
To lock the battery door:
Use an appropriate tool to
slide the recessed switch to
the left until it “clicks” and
the colored mark is visible.
To unlock the battery door:
Slide the recessed switch to
the right until it “clicks” and
the colored mark disappears.
Locking the door is not
required for operation.
Helpful Hints
• NEVER FORCE THE DOOR SHUT; this
could result in serious damage; if the door
will not close securely, check that the battery
is inserted correctly
• Do not open the battery door too far or
damage is likely to occur
• Dispose of used batteries immediately in the
proper waste or recycling container
• Batteries vary in size and performance. Your
hearing care professional is your best source for
lifespan estimates and verification that you are
using the proper size and type
Keep out of reach of children and pets
Check your medications before taking them –
batteries have been mistaken for pills
Never put batteries in your mouth, as they
can easily be swallowed
National Button Battery Ingestion Hotline:
202-625-3333
Preparation
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WARNING: