SoftBank 921T Instruction Manual page 18

Safety Precautions
4. When using electronic medical devices other than an implanted
cardiac pacemaker or defi brillator outside of medical institutions
(such as at home), consult with the individual medical device
manufacturer about the possible infl uence of radio waves.
The above information conforms to "The Guidelines on Use of
Mobile Phones and Other Devices to Prevent Electromagnetic
Wave Interference with Electronic Medical Equipment"
(Electromagnetic Compatibility Conference Japan), as well as
refers to "The Investigative Research Report on the Infl uence of
Electromagnetic Waves on Medical Equipment" (Association of
Radio Industries and Businesses, March 2001).
Do not use the AC Charger (sold separately) with any
power supply other than a 100 to 240 V AC household
power supply
Doing so may result in a fi re, as well as cause the charger to
overheat, catch fi re or malfunction.
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Warning