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Important Information
U
nited States & Canada
THIS PHONE MODEL HAS BEEN CERTIFIED IN COMPLIANCE
WITH THE GOVERNMENT’S REQUIREMENTS FOR EXPOSURE
TO RADIO WAVES.
The ST25i Series mobile phones have been designed to
comply with applicable safety requirements for exposure to radio
waves. Your wireless phone is a radio transmitter and receiver. It
is designed to not exceed the limits* of exposure to radio
frequency (RF) energy set by governmental authorities. These
limits establish permitted levels of RF energy for the general
population. The guidelines are based on standards that were
developed by international scientific organizations through
periodic and thorough evaluation of scientific studies. The
standards include a safety margin designed to assure the safety
of all individuals, regardless of age and health.
The radio wave exposure guidelines employ a unit of
measurement known as the Specific Absorption Rate (SAR).
Tests for SAR are conducted using standardized methods with
the phone transmitting at its highest certified power level in all
used frequency bands. While there may be differences between
the SAR levels of various phone models, they are all designed to
meet the relevant guidelines for exposure to radio waves. For
more information on SAR, please refer to the safe and efficient
use chapter in the User Guide.
The highest SAR value as reported to the authorities for this
phone model when tested for use by the ear is 1.09 W/kg*, and
when worn on the body is 0.93 W/kg* for speech and
1.08 W/kg* for data calls. For body-worn operation, the phone
has been tested when positioned a minimum of 15 mm from the
body without any metal parts in the vicinity of the phone or when
properly used with an appropriate Sony accessory and worn on
the body. For devices which include “WiFi hotspot” functionality,
body-worn SAR measurements for operation of the device
operating in WiFi hotspot mode were taken using a separation
2
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