LG G4 User Manual page 125

Exposure to radio frequency energy
THIS DEVICE MEETS INTERNATIONAL GUIDELINES FOR EXPOSURE TO RADIO WAVES
Your mobile device is a radio transmitter and receiver. It is designed and manufactured
not to exceed the limits for exposure to radio frequency (RF) recommended by
international guidelines (ICNIRP). These limits are part of comprehensive guidelines and
establish permitted levels of RF energy for the general population.
The guidelines were developed by independent scientific organisations through periodic
and thorough evaluation of scientific studies. The guidelines include a substantial safety
margin designed to assure the safety of all persons, regardless of age or health.
The exposure standard for mobile devices employs a unit of measurement known as
the Specific Absorption Rate, or SAR. The SAR limit stated in the international guidelines
is 2.0 W/kg*. Tests for SAR are conducted using standard operating positions with the
device 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
of the device while operating can be well below the maximum value. This is because
the device 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 base station, the lower
the power output of the device.
Before a phone model is available for sale to the public, compliance with the European
R&TTE directive must be shown. This directive includes as one essential requirement
the protection of the health and the safety for the user and any other person.
The highest SAR value for this device when tested for use at the ear is 0.754 W/kg.
This device meets RF exposure guidelines when used either in the normal use position
against the ear or when positioned at least 1.5 cm away from the body. When a
carry case, belt clip or holder is used for body-worn operation, it should not contain
metal and should position the product at least 1.5 cm away from your body. In order
to transmit data files or messages, this device requires a quality connection to the
network. In some cases, transmission of data files or messages may be delayed until
such a connection is available. Ensure the above separation distance instructions are
followed until the transmission is completed.
The highest SAR value for this device when tested for use at the body is 0.462 W/kg.
Guidelines for safe and efficient use
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