Sharp O2 - Manual (Page 119)

Safety Precautions and Conditions of Use 118
SAR
Your Sharp mobile phone has been designed,
manufactured and tested so as not to exceed the limits
for exposure to electromagnetic fields recommended by
the Council of the European Union. These limits are
part of comprehensive guidelines developed by
independent scientific organisations. The guidelines
include a substantial safety margin designed to assure
the safety of the phone user and others and to take into
account variations in age and health, individual
sensitivities and environmental conditions. European
standards provide for the amount of radio frequency
electromagnetic energy absorbed by the body when
using a mobile phone to be measured by reference to
the Specific Absorption Rate (SAR). The SAR limit for
the general public is currently 2 watts per kilogram
averaged over 10 grams of body tissue. Your Sharp
mobile phone SAR value is 0.46 watts per kilogram.
This has been tested to ensure that this limit is not
exceeded even when the phone is operating at its
highest certified power. In use however your Sharp
mobile phone may operate at less than full power
because it is designed to use only sufficient power to
communicate with the network.