User Manual

Health and Safety Information 17
mobile devices have been rated. Mobile
devices that are rated have the rating on
their box or a label located 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 mobile
device successfully. Trying out the mobile
device with your hearing device is the best
way to evaluate it for your personal needs.
M-Ratings : Wireless mobile devices rated
M3 or M4 meet FCC requirements and are
likely to generate less interference to
hearing devices than mobile devices that are
not labeled. M4 is the better/higher of the
two ratings. M-ratings refer to enabling
acoustic coupling with hearing aids that do
not operate in telecoil mode.
T-Ratings : Mobile devices rated T3 or T4
meet FCC requirements and are likely to
generate less interference to hearing
devices than mobile devices that are not
labeled. T4 is the better/higher of the two