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in the user's hand or in approved body-worn
accessories. Cell phones marketed in the U.S.
are required to meet RF exposure compliance
requirements when used against the head and
against the body.
Because there are no known risks from
exposure to RF emissions from cell phones,
there is no reason to believe that hands-free kits
reduce risks. Hands-free kits can be used for
convenience and comfort. They are also
required by law in many states if you want to
use your phone while driving.
Cell Phone Accessories that Claim to Shield the Head
from RF Radiation
Because there are no known risks from
exposure to RF emissions from cell phones,
there is no reason to believe that accessories
which claim to shield the head from those
emissions reduce risks. Some products that
claim to shield the user from RF absorption use
special phone cases, while others involve
nothing more than a metallic accessory
attached to the phone.
Studies have shown that these products
generally do not work as advertised. Unlike
“hands-free” kits, these so-called “shields” may
interfere with proper operation of the phone.
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