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:
vAny combined rating equal to or greater than six offers excellentuse.
vAny combined rating equal to five is considered normal use.
vAny 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 “excellentuse.”This is synonymous for T ratings.
SprintNextel further suggests you experimentwith multiple phones (even
those notlabeled M3/T3 or M4/T4) while in the store to find the one that
works bestwith your hearing aid device. Should you experience
interference or find the quality of service unsatisfactory after purchasing
your phone, promptly return itto the store within 30 days of purchase. With
the Sprint30-day Risk-Free Guarantee, you may return the phone within 30
days of purchase for a full refund. More information abouthearing aid
compatibility may be found at: www.fcc.gov,www.fda.gov,and
www.accesswireless.org.
Getting the BestHearing Device ExperienceWith Your Phone
To further minimize interference:
vSetthe phone’s Display and Keypad backlightsettings to ensure the
minimum time interval:
1. Press >Settings > Display > Main Screen or Outer Screen >
Backlight.
or –
Press >Settings> Display > Keypad Light.
2. Selectthe minimum time interval setting and press .
vPosition the phone so the internal antenna is farthestfrom your
hearing aid.
vMove the phone around to find the pointwith leastinterference.

Section 4A: ImportantSafety Information 209

ImportantSafetyInformation