When using the unit around a sink, etc. Be careful that the unit does not fall into a sink or container filled with
water.
When using the unit in the rain or snow, or in humid locations
When using the unit while you are sweaty If you touch the unit with wet hands, or put the unit in the pocket of a
damp article of clothing, the unit may get wet.
For details on the effect of contact to the human body from the mobile phone or other wireless devices connected to
the unit, refer to the instruction manual of the wireless device.
Never insert the USB plug when the main unit or charging cable is wet. If the USB plug is inserted while the main unit
or charging cable is wet, a short circuit may occur due to the liquid (tap water, seawater, soft drink, etc.) attached to
the main unit or charging cable or due to foreign matter, and cause abnormal heat generation or malfunction.
Note on static electricity
Static electricity accumulated in the body may cause mild tingling in your ears. To reduce the effect, wear clothes
made from natural materials, which suppress the generation of static electricity.
IMPORTANT: THE VOICE GUIDANCE FOR THIS UNIT IS ONLY AVAILABLE IN ENGLISH.
The voice guidance can be heard from the unit when:
When powering on: “Power on”
When powering off: “Power off”
When the remaining battery level is low and recharge is recommended: “Low battery, please recharge headset”
When automatically turning off due to low battery: “Please recharge headset. Power off”
When checking the remaining battery level:“Battery fully charged” / “Battery about 70 %” / “Battery about 50 %”
When entering pairing mode: “Bluetooth pairing”
When establishing a Bluetooth connection: “Bluetooth connected”
When disconnecting a Bluetooth connection: “Bluetooth disconnected”.
Precautions
On BLUETOOTH® communications
Bluetooth wireless technology operates within a range of about 10 m (30 feet). The maximum communication
distance may vary depending on the presence of obstacles (people, metal objects, walls, etc.) or the
electromagnetic environment.
Bluetooth communications may not be possible, or noise or audio dropout may occur under the following
conditions:
When there is a person between the unit and the Bluetooth device. This situation may be improved by
positioning the Bluetooth device so that it faces the antenna of the unit.
When there is an obstacle, such as a metal object or a wall, between the unit and the Bluetooth device.
When a Wi-Fi device or microwave oven is in use, or microwaves are emitted near the unit.
Compared to use indoors, use outdoors is subjected little to signal reflection from walls,floors, and ceilings,
which results in audio dropout occurring more frequently than use indoors.
The antenna is built into the unit as indicated by the dotted line in the illustration below. The sensitivity of
the Bluetooth communications can be improved by removing any obstacles between the connected
Bluetooth device and the antenna of this unit.