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Additional Health and Safety Information

FDA has been receiving inquiries about the safety of mobile phones, 
including cellular phones and PCS phones. The following summarizes 
what is known—and what remains unknown—about whether these 
products can pose a hazard to health, and what can be done to minimize 
any potential risk. This information may be used to respond to questions.

Mobile phones emit low levels of radio frequency energy (i.e., radio 
frequency radiation) in the microwave range while being used. They also 
emit very low levels of radio frequency energy (RF), considered 
non-significant, when in the stand-by mode. It is well known that high 
levels of RF can produce biological damage through heating effects (this 
is how your microwave oven is able to cook food). However, it is not 
known whether, to what extent, or through what mechanism, lower levels 
of RF might cause adverse health effects as well. Although some 
research has been done to address these questions, no clear picture of 
the biological effects of this type of radiation has emerged to date. Thus, 
the available science does not allow us to conclude that mobile phones 
are absolutely safe, or that they are unsafe. However, the available 
scientific evidence does not demonstrate any adverse health effects 
associated with the use of mobile phones.

Questions have been raised about hand-held mobile phones, the kind that 
have a built-in antenna that is positioned close to the user's head during 
normal telephone conversation. These types of mobile phones are of 
concern because of the short distance between the phone's