Health and Safety Information 150is the better/higher of the two ratings. T-ratings refer toenabling inductive coupling with hearing aids operating intelecoil mode.Hearing devices may also be rated. Your hearing aidmanufacturer or hearing health professional may help youfind this rating. Higher ratings mean that the hearing deviceis relatively immune to interference noise.Under the current industry standard, American NationalStandards Institute (ANSI) C63.19, the hearing aid andwireless mobile device rating values are added together toindicate how usable they are together. For example, if ahearing aid meets the M2 level rating and the wirelessmobile device meets the M3 level rating, the sum of the twovalues equals M5.Under the standard, this should provide the hearing aid userwith normal use while using the hearing aid with theparticular wireless mobile device. A sum of 6 or more wouldindicate excellent performance.However, these are not guarantees that all users will besatisfied. T ratings work similarly.The HAC rating and measurement procedure are described inthe American National Standards Institute (ANSI) C63.19standard.HAC for Newer TechnologiesThis phone has been tested and rated for use with hearingaids for some of the wireless technologies that it uses.However, there may be some newer wireless technologiesused in this phone that have not been tested yet for use withhearing aids.M3 + M2 = 5T3 + T2 = 5
