Palm TREO PRO User Manual page 339

HAC
Using your phone with a hearing device
Your smartphone is compliant with the FCC Hearing Aid Compatibility
(HAC) requirements. For additional HAC information, including the
HAC rating of this product, please refer to http://www.palm.com/
treopro-t850-hac.
Your device has been tested for hearing aid compatibility. When
some wireless 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 phone, to assist hearing-device users in finding phones
that may be compatible with their hearing devices. Not all phones
have been rated. Phones that have been rated have a label on the
box. Your Treo Pro has an M3/T3 rating. Your smartphone has not
been HAC rated with respect to its Wi-Fi operation because currently
no HAC standards exist for Wi-Fi.
These ratings are not guarantees. Results will vary, depending on the
level of immunity of your hearing device and the degree of your
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 device is the best way to
evaluate it for your personal needs.
M-Ratings: Phones rated M3 or M4 meet FCC requirements and are
likely to generate less interference with hearing devices than phones
that are not labeled. M4 is the better/higher of the two ratings.
T-Ratings: Phones rated T3 orT4 meet FCC requirements and are
likely to be more usable with a hearing device's telecoil ("T switch"
or "Telephone Switch") than unrated phones. T4 is the better/higher
of the two ratings.
The more immune your hearing aid device is, the less likely you are to
experience interference noise from your wireless phone. Hearing aid
devices should have ratings similar to those of phones. Ask your
hearing health-care professional for the rating of your hearing aid. Add
the rating of your hearing aid and your phone to determine probable
usability:
• Any combined rating equal to or greater than six offers the best
use.
• Any combined rating equal to five is considered normal use.
• Any combined rating equal to four is considered usable.
Thus, if you pair an M3 hearing aid with an M3 phone, you will have a
combined rating of six for "best use. " This is synonymous for T
ratings.
Palm further suggests that you experiment with multiple phones
(even those not labeled M3/T3 or M4/T4) while in the store to find the
one that works best with your hearing aid device. If you experience
interference or find the quality of service unsatisfactory after
purchasing your device, promptly return it to the store within 30 days
of purchase. With the Palm 30-day Risk-Free Guarantee, you may
return the device within 30 days of purchase for a full refund, and you
will only be responsible for charges based on your actual usage.
Getting the Best Hearing Device Experience with Your Device
To further minimize interference:
• Set the phone's screen and keyboard backlight settings to ensure
the minimum time interval.
• Move the phone around to find the point with the least
interference.
Battery handling:
• Do not disassemble or open, crush, bend or deform, puncture or
shred.
• Do not modify or remanufacture, attempt to insert foreign objects
into the battery, immerse or expose to water or other liquids, or
expose to fire, explosion, or other hazard.
• Only use the battery for the system for which it is specified.
• Only use the battery with a charging system that has been
qualified with the system per the IEEE/CTIA-1725 standard. Use
of an unqualified battery or charger may present a risk of fire,
explosion, leakage, or other hazard.
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