Microsoft Lumia 640 Dual SIM Quick Manual page 3

remove the broken glass from the device. Stop using the
device until the glass is replaced by qualified service
personnel.
PROTECT YOUR HEARING
To prevent possible hearing damage, do not listen
at high volume levels for long periods. Exercise
caution when holding your device near your ear
while the loudspeaker is in use.
SAR
This device meets RF exposure guidelines when
used either in the normal use position against the
ear or when positioned at least 1.5 centimetres
(5/8 inch) away from the body. The specific maximum SAR
values can be found in the Certification Information (SAR)
section of this user guide. For more info, go to www.sar-
tick.com.
When a carry case, belt clip or other form of device holder is
used for body-worn operation, it should not contain metal
and should provide at least the above-stated separation
distance from the body. Note that mobile devices may be
transmitting even if you are not making a voice call.