Instructions
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OPERATING ENVIRONMENT
• Do not use or charge this device in dusty, damp, and dirty places or places with magnetic elds. Otherwise, it may result
in a malfunction of the circuit.
• The device complies with the RF specications when the device is used near your ear or at a distance of 1.0 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 the device 1.0 cm away from your body to meet the requirement earlier mentioned.
• On a stormy day with thunder, do not use the device when it is being charged to prevent any danger caused by lightning.
• When on a call, do not touch the antenna. Touching the antenna affects the call quality and results in increasing the
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 and 45°C for using the device powered by a battery. The device will be functional between -25°C and 55°C
but due to the metal sides we do not recommend using the device in temperatures below 0°C or above 45°C without
the use of protective gloves.
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 regarding children’s safety. Letting a child play with this 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 its 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 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 device retailer for information about the availability of approved batteries, chargers,
and accessories in the area.
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.
• Use the AC power supply dened in the specications of the charger. An improper power voltage may cause a re or a
malfunction of the charger.
• If battery electrolyte leaks out, ensure that the electrolyte does not touch skin and eyes. If the electrolyte touches skin
or splashes into eyes, wash eyes with clean water immediately and consult a doctor.
• If there is a case of battery deformation, colour change, or abnormal heating while charging, stop using the device
immediately. Otherwise, it may lead to battery leakage, overheating, explosion, or re.
• If the USB power cable is damaged (for example, the cord is exposed or broken), or the plug loosens, stop using the cable
at once. Otherwise, it may lead to an electric shock, a short circuit of the charger, or a re.