Operation Manual
6
Preparation
Battery Indicators
An indicator will sound when the battery voltage 
is low. You have approximately 20 minutes* to 
replace the battery. A different indicator 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. 
Helpful Hints
• NEVERFORCETHEDOORSHUT;thiscould
resultinseriousdamage;ifthedoorwillnot
close securely, check that the battery is 
inserted correctly
• Donotopenthebatterydoortoofarordamage
is likely to occur
• Becauseoftheirsize,it’sagoodideato 
change and replace batteries above a table 
or desk to reduce the risk of dropping the 
instrument or battery
• Disposeofusedbatteriesimmediatelyinthe
proper waste or recycling container
• Becausebatteriescanvaryinsizeand
performance, your hearing care professional 
is your best source for lifespan estimates and 
vericationthatyouareusingthepropersize
and type










