Huawei C7300 User Manual page 72

Do not use any chemical detergent, powder, or other chemical agents
(such as alcohol and benzene) to clean the device and the charger.
Otherwise, parts of the device may be damaged or a fire can be caused.
You can clean the device and the charger with a piece of damp and soft
antistatic cloth.
Do not dismantle the device or accessories. Otherwise, the warranty on
the device and accessories is invalid and the manufacturer is not liable
to pay for the damage.
Emergency Call
You can use your device for emergency calls in the service area. The
connection, however, cannot be guaranteed in all conditions. You should
not rely solely on the device for essential communications.
Certification Information (SAR)
This device meets guidelines for exposure to radio waves.
Your device is a low-power radio transmitter and receiver. As
recommended by international guidelines, the device is designed not to
exceed the limits for exposure to radio waves. These guidelines were
developed by the independent scientific organization International
Commission on Non-Ionizing Radiation Protection (ICNIRP) and include
safety measures designed to ensure safety for all users, regardless of age
and health.
The Specific Absorption Rate (SAR) is the unit of measurement for the
amount of radio frequency energy absorbed by the body when using a
device. The SAR value is determined at the highest certified power level in
laboratory conditions, but the actual SAR level of the device when being
operated can be well below the value. This is because the device is
designed to use the minimum power required to reach the network.
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