User's Manual

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62 Additional information
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.
Specific Absorption Rate (SAR) is the unit of
measurement for the amount of radio frequency energy
absorbed by the body when using a mobile phone. The
SAR value is determined at the highest certified power
level in laboratory conditions, but the actual SAR level of
the mobile phone while operating can be well below this
value. This is because the mobile phone is designed to
use the minimum power required to reach the network.
Therefore, the closer you are to a base station, the more
likely it is that the actual SAR level will decrease.
Variations in SAR below the radio frequency exposure
guidelines do not mean that there are variations in safety.
While there may be differences in SAR levels among
mobile phones, all Sony Ericsson mobile phone models
are designed to meet radio frequency exposure
guidelines.
Accessories can significantly affect a mobile phone's
compliance with the radio frequency exposure
guidelines. For example, the Federal Communication
Commission in the U.S. requires that some
manufacturers' accessories shall be tested, and Sony
Ericsson has done so with respect to its products. To
avoid causing loss of performance or radio frequency
exposure levels above the permissible limits it is
recommended that you only use Sony Ericsson or
Ericsson original accessories intended for use with the
mobile phone. If you wear the mobile phone on your
body while it is transmitting, and you do not use a Sony
Ericsson or Ericsson original body worn accessory,
please ensure that the mobile phone is positioned a
minimum of 1.5 cm from your body and that you are not
using an accessory that contain any metal.