Verizon PC5750 - Manual (Page 13)

2) Do not use this PC card in areas where blasting is in progress, where
explosive atmospheres may be present, near medical equipment, life
support equipment, or any equipment which may be susceptible to any
form of radio interference. Turn of this PC card in these areas, since it
can transmit signals that could interfere with this equipment.
3) Do not use this PC card in any aircraft whether the aircraft is on the
ground or in flight. Make sure to turn off this PC card in aircraft.
If used in aircraft, it can transmit signals that could interfere with
various aircraft systems.
4) Do not use this PC card while driving a car, since it can distract driver’s
driving. In some area, using the communication device while driving a
car is illegal.
* WARNING: This product contains a chemical known to the State of
California to cause cancer.
* WARNING: This product contains a chemical known to the State of
California to cause birth defects or other reproductive harm."
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PC5750 User’s Manual