Siemens SX56 - Manual (Page 128)

For body worn operation, to maintain
compliance with FCC RF exposure guidelines,
use only Siemens approved accessories.
When carrying the phone while
it is on, use the specific Siemens belt clip that
has been tested for compliance.
Use of non-Siemens-approved accessories
may violate FCC RF exposure guidelines and
should be avoided.
Additional information on Specific
Absorption Rates (SAR) can be found on the
Cellular Telecommunications Industry
Association (CTIA) web-site at:
http://www.wow-com.com.
For SAR information in other regions please
look under product information at:
www.my-siemens.com
SAR (Specific Absorption Rate)