Samsung SGH-T619SSBTMB User Manual
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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.
What is FDA's role concerning the safety of wireless 
phones?
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 
or medical devices. However, the agency has authority to 
take action if wireless phones are shown to emit radio 
frequency energy (RF) at a level that is hazardous to the 
user. In such a case, FDA could require the manufacturers 
of wireless phones to notify users of the health hazard and 
to repair, replace or recall the phones so that the hazard no 
longer exists.
Although the existing scientific data do not justify FDA 
regulatory actions, FDA has urged the wireless phone 
industry to take a number of steps, including the 
following: