Casio C721 User Manual

Safety

Some digital wireless phones may interfere with some hearing 

aids. In the event of such interference, you may want to consult 

your service provider (or call the customer service line to discuss 

alternatives).

If you use any other personal medical device, consult the 

manufacturer of your device to determine if they are adequately 

shielded from external RF energy. Your physician may be able to 

assist you in obtaining this information.

Turn your phone OFF in health care facilities when any regulations 

posted in these areas instruct you to do so. Hospitals or health 

care facilities may be using equipment that could be sensitive to 

external RF energy.

k Vehicles

RF signals may affect improperly installed or inadequately 

shielded electronic systems in motor vehicles. Check with the 

manufacturer or its representative regarding your vehicle. You 

should also consult the manufacturer of any equipment that has 

been added to your vehicle.

k Posted Facilities

Turn your phone OFF where posted notices so require.

k Aircraft

FCC regulations prohibit using your phone while in the air. Turn 

your phone OFF before boarding an aircraft.