Lenovo A390 Smartphone - Manual (Page 21)

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of your mobile devices is automatically decreased when
full power is not needed for the call. The lower the power
output of the device, the lower its SAR value.
A body-worn SAR test has been performed on this device
at a separation distance of 1.5cm.To meet RF exposure
guidelines during body-worn operation, the device must
be positioned at least 1.5cm away from the body.
Organisations such as the World Health Organisation and
the US Food and Drug Administration have suggested
that if people are concerned and want to reduce their
exposure, they could use a hands-free accessory to keep
the wireless device away from the head and body during
use, or reduce the amount of time spent using the device.