Efficient Use - Sony Ericsson Z520i User Manual

Important Information
• Do not close your product with
an object inserted between keypad
and display; this may damage your
product.
• Do not paint your product.
• Do not use your product near medical equipment
without requesting permission.
• Do not use your product when in, or around
aircraft, or areas posted "turn off two-way radio".
• Do not use your product in an area where
a potentially explosive atmosphere exists.
• Do not place your product or install wireless
equipment in the area above your car's air bag.
• Do not attempt to disassemble your
product. Only Sony Ericsson-
authorized personnel should perform
service.
Antenna
Only use an antenna that has been specifically
designed by Sony Ericsson for your mobile phone.
Use of unauthorized or modified antennas could
damage your mobile phone and may violate
regulations, causing loss of performance and SAR
levels above the recommended limits (see below).
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Efficient use

Hold your mobile phone as you would any other
phone. Do not cover the top of the phone when
in use, as this affects call quality and may cause
the phone to operate at a higher power level than
needed, thus shortening talk and standby times.
Radio frequency (RF) exposure
and SAR
Your mobile phone is a low-power radio transmitter
and receiver. When it is turned on, it emits low levels
of radio frequency energy (also known as radio
waves or radio frequency fields).
Governments around the world have adopted
comprehensive international safety guidelines,
developed by scientific organizations, e.g. ICNIRP
(International Commission on Non-Ionizing Radiation
Protection) and IEEE (The Institute of Electrical and
Electronics Engineers Inc.), through periodic and
thorough evaluation of scientific studies. These
guidelines establish permitted levels of radio wave
exposure for the general population. The levels
include a safety margin designed to assure the safety
of all persons, regardless of age and health, and to
account for any variations in measurements.