HAC spec with M/T ratings shown 

Sprint
Incognito™                  M4/T4

Katana II                      M4

Katana DLX                 M4/T4 

Katana Eclipse            M4/T4 

Katana Eclipse X         M4/T4

Katana LX                   M4/T4

M1                                M4

PRO-200                      M4/T4

PRO-700                      M4/T4

SCP-200                       M3

SCP-2400                     M4/T4 

SCP-2700                     M4/T4 

SCP-3810                     M4/T4

SCP-7000                     M3/T3

SCP-7050                     M4/T4

VI-2300                         M3

Boost Mobile
Incognito™ SCP6760   M4/T4

Mirro™ SCP3810          M4/T4

Using Your Phone with a Hearing Aid Device

A number of Sanyo phones have been tested for hearing aid device compatibility. When some wireless phones are used with certain hearing devices (including hearing aids and cochlear implants), users may detect a noise which can interfere with the effectiveness of the hearing device. Some hearing devices are more immune than others to this interference noise, and phones also vary in the amount of interference noise they may generate. ANSI standard C63.19 was developed to provide a standardized means of measuring both wireless phone and hearing devices to determine usability rating categories for both.

Ratings have been developed for mobile phones to assist hearing device users find phones that may be compatible with their hearing device. Not all phones have been rated for compatibility with hearing devices.

These ratings are not guarantees. Results will vary depending on the user’s hearing device and individual type and degree of hearing loss. If a hearing device is particularly vulnerable to interference noise; even a phone with a higher rating may still cause unacceptable noise levels in the hearing device. 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 for hearing aid compatibility and are likely to generate less interference to hearing devices than unrated phones. (M4 is the better/higher of the two ratings.)

T-Ratings: Phones rated T3 or T4 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. Note that not all hearing devices have telecoils in them.)

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:

    o         Any combined rating equal to or greater than six offers excellent use.

    o         Any combined rating equal to five is considered normal use.

    o         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 suggest that you experiment with multiple phones (even those not labeled M3/T3 or M4/T4) to find the one that works best with your hearing aid device.