RF Exposure Information and Statement The SAR limit of USA (FCC) is 1.6 W/kg averaged over one gram of tissue. Device types S1 (FCC ID: RV2S1Q) has also been tested against this SAR limit. The highest SAR value reported under this standard during product certification for use at the ear is 1.170 W/kg and when properly worn on the body is 1.193 W/kg. This device was tested for typical body-worn operations with the back of the handset kept 1.5cm from the body.