In the United States, the FCC limit for public exposure from cellular telephones is a Specific Absorption Rate (SAR) level of 1.6 watts per kilogram. In most cases, cell phones are tested for safety with the assumption that they are operated between 5mm and 15mm from the body.<ref>https://www.fcc.gov/general/radio-frequency-safety-0</ref> | In the United States, the FCC limit for public exposure from cellular telephones is a Specific Absorption Rate (SAR) level of 1.6 watts per kilogram. In most cases, cell phones are tested for safety with the assumption that they are operated between 5mm and 15mm from the body.<ref>https://www.fcc.gov/general/radio-frequency-safety-0</ref> |