Persons with pacemakers, Hearing aid compatibility with mobile phones – Samsung SCH-A645BKAATL User Manual
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Section 14
These recommendations are consistent with the 
independent research and recommendations of 
Wireless Technology Research.
Persons with pacemakers:
•
should always keep the phone more than 15 cm (6 inches) from
their pacemaker when the phone is switched on.
•
should not carry the phone in a breast pocket.
•
should use the ear opposite the pacemaker to minimize
potential interference.
If you have any reason to suspect that interference is 
taking place, switch your phone off immediately.
Hearing Aid Compatibility with Mobile Phones
When some mobile phones are used near some hearing 
devices (hearing aids and cochlear implants), users may 
detect a buzzing, humming, or whining noise. Some 
hearing devices are more immune than others to this 
interference noise, and phones also vary in the amount 
of interference they generate.
The wireless telephone industry has developed ratings 
for some of their mobile phones, to assist hearing 
device users in finding phones that may be compatible 
with their hearing devices. Not all phones have been 
rated. Phones that are rated have the rating on their box 
or a label on the box.
The ratings are not guarantees. Results will vary 
depending on the user’s hearing device and hearing 
loss. If your hearing device happens to be vulnerable to 
interference, you may not be able to use a rated phone 
successfully. Trying out the phone with your hearing