Lenovo K53a48 Manual page 7

During SAR testing, this device was set to transmit at its highest
certified power level in all tested frequency bands, and placed in
positions that simulate RF exposure in usage against the head with no
separation, and near the body with the separation of 10 mm. Although
the SAR is determined at the highest certified power level, the actual
SAR level of the device while operating can be well below the
maximum value. This is because the phone is designed to operate at
multiple power levels so as to use only the power required to reach
the network. In general, the closer you are to a wireless base station
antenna, the lower the power output.
The exposure standard for wireless devices employing a unit of
measurement is known as the Specific Absorption Rate, or SAR.
The SAR limit set by the FCC is 1.6W/kg.
This device is complied with SAR for general population /uncontrolled
exposure limits in ANSI/IEEE C95.1-1992 and had been tested in
accordance with the measurement methods and procedures specified
in IEEE1528.
The FCC has granted an Equipment Authorization for this model
phone with all reported SAR levels evaluated as in compliance with
the FCC RF exposure guidelines. SAR information on this model
phone is on file with the FCC and can be found under the Display
Grant section of www.fcc.gov/oet/ea/fccid after searching on FCC ID:
YCNK53A48.
For this device, the highest reported SAR value for usage against the
head is 0.29 W/kg, for usage near the body is 1.39 W/kg.
While there may be differences between the SAR levels of various
phones and at various positions, they all meet the government
requirements.
SAR compliance for body-worn operation is based on a separation