260 Section 4A: Safety

an M2 immunity level. Add the “M”ratings of your hearing aid and your
phone to determine probable usability:
䢇Any combined rating equal to or greater than six offers bestuse.
䢇Any combined rating equal to five is considered normal use.
䢇Any combined rating equal to four is considred usable.
Thus, if you pair an M3 hearing aid with an M3 phone, you will have a
combined rating of six for “bestuse.”
Sprintfurther suggests you experimentwith multiple phones (even
those notlabeled M3 or M4) while in the store to find the one thatworks
bestwith your hearing aid device. Should you experience interference
after purchasing your phone, promptly return itto the store. With the
Sprint14-day Risk-Free Guarantee you may return the phone within
14 days of purchase for a full refund.
Getting the BestHearing Device Experience With Your VI-2300
To further minimize interference:
䢇There is usually less interference on the microphone setting than the
telecoil setting.
䢇Setthe phone’s Display and Keypad backlightsettings to ensure the
minimum time interval:
1. Press to access the main menu.
2. SelectSettingsand press .
3. SelectDisplayand press .
4. SelectBacklightand press .
5. SelectMain LCDor Key and press .
6. Selectthe minimum time interval setting and press .
䢇Use phones with a pull-outantenna. Phones with embedded antennae
may produce more interference.
䢇Position the phone so the antenna is farthestfrom your hearing aid.
䢇Move the phone around to find the pointwith leastinterference.