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General Notes
SAR Certification Information
820N and 821N meet the technical standards set by Ministry of Internal Affairs and Communications (MIC) regarding radio wave
absorption by a human body.
These technical standards have been established on a scientific basis to prevent radio waves emitted from wireless devices such as mobile
phones that are used close to a human head from affecting human health. These standards require that the SAR (Specific Absorption
Rate), an indicator of the amount of average radio frequency energy absorbed in the side of a human head, must not exceed the
permissive value of 2 W/kg*. This value includes a substantial safety margin to assure the safety of all persons, regardless of age and
physical size. The value is equal to the international guideline recommended by the International Commission on Non-Ionizing Radiation
Protection (ICNIRP) that has a cooperative relationship with the World Health Organization (WHO).
* The technical standards are stipulated in the Radio Law (Article 14-2 of Ordinance Regulating Radio Equipment).
The highest SAR value is 0.759 W/kg for 820N and 0.639 W/kg for 821N. This value was obtained in accordance with the MIC testing
procedure with handset transmitting at its highest permitted power level. While there may be differences in SAR levels among individual
products, they all meet the MIC’s permissible value. Because mobile phones are designed to operate at their minimum power level
required to communicate with base stations, the actual SAR of handset during a call is usually below the highest value.
For further information about SAR, see the following websites:
･
Ministry of Internal Affairs and Communications (MIC)
http://www.tele.soumu.go.jp/e/ele/index.htm
･
Association of Radio Industries and Businesses (ARIB)
http://www.arib-emf.org/index02.html (Japanese)
