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• 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 this requirement.
• 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 40°C while the device is being charged. Keep
the ambient temperature between 0°C to 40°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
Choose only batteries, chargers, and accessories approved for use with this model by the device
manufacturer. The use of any other type of battery, charger, or accessory may invalidate any
warranty for the device, may be in violation of local rules or laws, and may be dangerous. Please
contact your dealer for information about the availability of approved batteries, chargers, and
accessories in your area.
Battery and Charger
• Unplug the charger from the electrical plug and the device when not in use.
• Rechargeable batteries have a limited number of charge cycles and may eventually need to be
replaced. The battery isn’t user replaceable; it can be replaced only by an authorized service
provider.
• 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.