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94 4A. Important Safety Information
Hearing aid devices may also be measured for immunity to
interference noise from wireless phones and should have
ratings similar to phones. Ask your hearing healthcare
professional for the rating of your hearing aid. Add the rating of
your hearing aid and your phone to determine probable
usability:
ⅷ Any combined rating equal to or greater than six offers
excellent use.
ⅷ Any combined rating equal to five is considered normal use.
ⅷ 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 “excellent use.” This is
synonymous for T ratings.
We further suggests 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.
Getting the Best Hearing Device
Experience With Your Phone
To further minimize interference:
ⅷ Set the phone’s display and keypad backlight settings to
ensure the minimum time intervals.
1. Press > Settings & Tools > Settings > Display >
Backlight Control > Backlight Dim
.
2. Touch the minimum time interval setting.
ⅷ Position the phone so the internal antenna is farthest from
your hearing aid.
ⅷ Move the phone around to find the point with least
interference.
Caring for the Battery
Protecting Your Battery
The guidelines listed below help you get the most out of your
battery’s performance.
ⅷ Recently there have been some public reports of wireless
phone batteries overheating, catching fire, or exploding. It
appears that many, if not all, of these reports involve
counterfeit or inexpensive, aftermarket-brand batteries with
unknown or questionable manufacturing standards. Boost
Mobile is not aware of similar problems with Boost Mobile
phones resulting from the proper use of batteries approved
by the manufacturer of your phone. Use only manufacturer-
approved batteries found through your phone’s
manufacturer.
ⅷ In order to avoid damage, charge the battery only in
temperatures that range from 32° F to 113° F (0° C to 45° C).
ⅷ Don’t use the battery charger in direct sunlight or in high
humidity areas, such as the bathroom.
ⅷ Never dispose of the battery by incineration.
ⅷ Keep the metal contacts on top of the battery clean.
ⅷ Don’t attempt to disassemble or short-circuit the battery.
ⅷ The battery may need recharging if it has not been used for
a long period of time.
Boost SPH-M390.book Page 94 Friday, August 31, 2012 6:30 PM