Phonak Audeo M-R Series, User Manual

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3. Charging the hearing aids
Low power: You will hear two beeps when the
battery is low. You will have approximately
60 minutes before you have to charge the hearing
aids (this can vary, depending on the hearing aid
settings).
Before using your hearing aids for the first time, it
is recommended to charge them for 3 hours.
The hearing aids must be dry before charging,
see chapter 5.
Please ensure to charge and use the hearing aids
within operating temperature range: +5° to +40°
Celsius (41° to 104° Fahrenheit).