Motorola V60v 用户指南

The U.S. Food and Drug Administration (FDA) provides 
consumer information on wireless phones at: 

http://www.fda.gov/cellphones/qa.html

Following are safety-related questions and answers 
discussed at this web site.

The available scientific evidence does not show that any 
health problems are associated with using wireless 
phones. There is no proof, however, that wireless phones 
are absolutely safe. Wireless phones emit low levels of 
radio frequency energy (RF) in the microwave range 
while being used. They also emit very low levels of RF 
when in the stand-by mode. Whereas high levels of RF 
can produce health effects (by heating tissue), exposure 
to low level RF that does not produce heating effects 
causes no known adverse health effects. Many studies of 
low level RF exposures have not found any biological 
effects. Some studies have suggested that some biological 
effects may occur, but such findings have not been 
confirmed by additional research. In some cases, other 
researchers have had difficulty in reproducing those 
studies, or in determining the reasons for inconsistent 
results.

Under the law, FDA does not review the safety of 
radiation-emitting consumer products such as wireless 
phones before they can be sold, as it does with new drugs