LG nexus5 Quick Start Manual page 13

FCC Hearing Aid Compatibility and Volume Control
http://www.fcc.gov/cgb/dro/hearing.html
Exposure to radio frequency (RF) energy
In August 1996, the U.S. Federal Communications
Commission (FCC), with its action in Report and Order
FCC 96-326, adopted an updated safety standard for
human exposure to Radio Frequency (RF) electromagnetic
energy emitted by FCC-regulated transmitters. The design
of this phone complies with the FCC and Health Canada
guidelines and these international standards, including
those of Industry Canada (IC).
Body-worn operation (U.S. and Canada): This device was
tested for typical body-worn operations with the back of
the phone kept 0.39 inches (1cm) between the user's body
and the back of the phone. To comply with FCC/IC RF
exposure requirements, a minimum separation distance
of 0.39 inches (1cm) must be maintained between your
body and the back of the phone. Do not use third-party belt-
clips, holsters, and similar accessories containing metallic
components. Body-worn accessories that cannot maintain
0.39 inches (1cm) separation distance between the user's
body and the back of the phone, and have not been tested
for typical body-worn operations, may not comply with
FCC/IC RF exposure limits and should be avoided.
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