Kyocera ENERGI K490 User Manual page 7

and establish permitted levels of RF energy for the general population.
The guidelines are based on standards that were developed by
independent scientific organizations through periodic and thorough
evaluation of scientific studies. The standards include a substantial safety
margin designed to assure the safety of all persons, regardless of age and
health.
The exposure standard for wireless mobile phones employs a unit of
measurement known as the Specific Absorption Rate, or SAR. The SAR
limit set by the FCC is 1.6 W/kg.*
Tests for SAR are conducted using standard operating positions specified
by the FCC with the phone transmitting at its highest certified power level
in all tested frequency bands.
Although the SAR is determined at the highest certified power level, the
actual SAR level of the phone while operating can be well below the
maximum value. This is because the phone is designed to operate at
multiple power levels so as to use only the power required to reach the
network. In general, the closer you are to a wireless base station antenna,
the lower the power output.
User Guide for the Kyocera Energie K490 Phone vii