Motorola MOTOKRZR K1 Guia Del Usuario página 98

Information from the World Health Organization
Present scientific information does not indicate the need for any
WHO Information
special precautions for the use of mobile phones. If you are
concerned, you may want to limit your own or your children's RF
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exposure by limiting the length of calls or by using handsfree
devices to keep mobile phones away from your head and body.
Source: WHO Fact Sheet 193
Further information: http://www.who.int./peh-emf