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Notes on Usage
• Do not place the product directly on sand at a
beach, etc. Sand or other small particles might
get inside the receiver/speaker, the mouthpiece or
the speaker, causing the volume to drop. If sand
gets into the interior of the product, it might cause
overheating or a fault.
• Do not use the product underwater.
• Do not use or leave the product in a humid place
such as a bathroom or kitchen for an extended
period of time.
• 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/speaker 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 designed to be heat resistant.
• The rapid changes of temperature may cause
condensation, resulting in malfunction. Wait for the
product to reach normal temperature when taking it
into a warm bathroom, etc. from cold areas.
• The product does not float on water.
• Make sure not to charge the product in a bathroom.
● au IC card/microSD memory card tray
• Make sure to attach the au IC card/microSD
memory card tray without any gaps. Even a fine
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 IC card/microSD memory card tray. Even a
fine 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 off completely with a dry clean
cloth before attaching it.
• Deterioration or damage of the au IC card/microSD
memory card tray will cause the waterproof
performance to degrade.
