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Safety Precautions
Safety Precautions
• There may be some water remaining on the product even after
draining it. The product can be used normally, but remember
to keep it away from objects you do not wish to get wet. Also
be careful as your clothes, bag, etc. may get wet from the
water remaining on the product.
• You need to perform draining if water accumulates in the
mouthpiece or receiver temporarily making it harder to hear
the sound.
• The product is not resistant to water pressure. Do not directly
apply high water pressure to or immerse the product for a
prolonged period.
• Do not wash the product using a washing machine or
ultrasound cleaner.
• Do not immerse the product in a bathtub. The product is not
heat resistant.
• Abrupt temperature changes may cause condensation to form
and may result in malfunctions. Wait for the product to reach
normal temperature when taking it into a warm bathroom, etc.
from cold areas.
• This product does not oat in water.
● au Nano IC Card 04/microSD memory card tray
• Make sure to attach the au Nano IC Card 04/microSD memory
card tray without any gaps. Even ne debris (a piece of hair,
etc.) between contact surfaces may allow water to enter the
interior of the product.
• Do not wear gloves, etc. when you attach or remove the au
Nano IC Card 04/microSD memory card tray. Even a ne
debris (a piece of hair, etc.) between contact surfaces may
allow water to enter the interior of the product. If there is any
water droplets or debris on the tray, wipe them o completely
with a dry clean cloth before attaching it.
• Deterioration or damage of the au Nano IC Card 04/microSD
memory card tray will cause the waterproof performance to
degrade.
● If any liquid other than water gets on the product
• In the event that the product comes into contact with liquid
other than water (seawater, detergent water, alcohol, etc.),
rinse it o immediately.
• You can wash the product under a mild ow (less than six liters
per minute) of tap water at room temperature (5℃ to 35℃ ) at
a distance of about 10 cm from the faucet or showerhead.
• If the product gets dirty, wash it with your hands holding the
au Nano IC Card 04/microSD memory card tray so that it
does not open. Do not use a brush or sponge.
● If the product gets wet
• After the product gets wet, drain water and wipe the product
with a clean dry cloth.
Water droplets adhered on the product may freeze in cold regions.
Continued use of the product in such condition may cause
malfunctions. Do not leave any water droplets on the product.
● Rubber gaskets
• The rubber gaskets of the au Nano IC Card 04/microSD memory
card tray play an important role for maintaining the waterproof
performance. Do not damage or remove the rubber gaskets.
• When closing the au Nano IC Card 04/microSD memory card
tray, take care not to get the rubber gaskets caught. Closing
the tray forcibly may damage the rubber gaskets causing
the waterproof performance to degrade. Even a ne debris (a
piece of hair, etc.) between contact surfaces may allow water
to enter the interior of the product.
• Liquid other than water (such as alcohol) adhered to the
product may cause the durability performance to degrade.
• Do not insert a sharp object into the gap between the au
Nano IC Card 04/microSD memory card tray. Doing so may
damage/deform the product or damage the rubber gaskets
and may allow water to enter the interior of the product.
• To keep the product waterproof, replacement of parts
is recommended every two years even if the product is
functioning normally. Contact your nearest au shop for the
replacement of parts.
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