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• RF signals may affect electronic systems of motor vehicles. For more information, consult the
vehicle manufacturer.
• In a motor vehicle, do not place the device over the air bag or in the air bag deployment area.
Otherwise, the device may hurt you owing to the strong force when the air bag inflates.
• Do not use your device while flying in an aircraft. Power off your device before boarding an
aircraft. Using wireless devices in an aircraft may cause danger to the operation of the aircraft
and disrupt the wireless telephone network. It may also be considered illegal.
Operating Environment
• Do not use or charge the device in dusty, damp, and dirty places or places with magnetic fields.
Otherwise, it may result in a malfunction of the circuit.
• The device complies with the RF specifications when the device is used near your ear or at a
distance of 1.5 cm from your body. Ensure that the device accessories such as a device case
and a device holster are not composed of metal components. Keep your device 1.5 cm away
from your body to meet the requirement earlier mentioned.
• On a stormy day with thunder, do not use your device when it is being charged, to prevent any
danger caused by lightning.
• When you are on a call, do not touch the antenna. Touching the antenna affects the call quality
and results in increase in power consumption. As a result, the talk time and the standby time are
reduced.
• While using the device, observe the local laws and regulations, and respect others' privacy and
legal rights.
• Keep the ambient temperature between 0°C and 45°C while the device is being charged. Keep
the ambient temperature between –10°C to 55°C for using the device powered by a battery.
Prevention of Hearing Damage
Using a headset at high volume can damage your hearing. To reduce the risk of damage to
hearing, lower the headset volume to a safe and comfortable level.
Safety of Children
Comply with all precautions with regard to children's safety. Letting the child play with your device
or its accessories, which may include parts that can be detached from the device, may be
dangerous, as it may present a choking hazard. Ensure that small children are kept away from the
device and accessories.
Accessories
Use the accessories delivered only by the manufacturer. Using accessories of other manufacturers
or vendors with this device model may invalidate any approval or warranty applicable to the device,
result in the non-operation of the device, and cause danger.
Battery and Charger
• Unplug the charger from the electrical plug and the device when not in use.
• The battery can be charged and discharged hundreds of times before it eventually wears out.
When the standby time and the talk time are shorter than the normal time, replace the battery.
• Use the AC power supply defined in the specifications of the charger. An improper power
voltage may cause a fire or a malfunction of the charger.
