Panasonic WH-103JZ Operating Instructions Manual page 13

Main unit / Charger cradle / AC adaptor / AC cord
Do not connect the positive "+" and negative "-" terminals of the
charger cradle with a metal object.
The charger can become damaged.
Do not turn the volume up too high.
Excessive loud volume level may impair hearing.
Do not use the hearing instrument near any equipment which emits
high frequency radio waves or generates a strong magnetic field.
If this caution is not heeded, the hearing instrument may emit acoustic feedback, which
can result in the damage to the ear.
• Remove your hearing aid while undergoing any kind of electromagnetic treatment
such as X-Rays, Magnetic Resonance Imaging (MRI), Computerized Axial
Tomography (CAT), Electroencephalogram (EEG), Electrocardiogram (ECG), Short -
Wave Diathermy, or other electrical or magnetic treatment.
• Other types of radiation such as burglary alarms, room surveillance systems, radio
equipment, and mobile phone will not damage the hearing aid. They could, however,
affect the sound quality or produce unusual sounds in the hearing aids.
CAUTION
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