User Manual

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completedinlate2000.Thisstandardwillallowmanufacturerstoensurethatcardiac
pacemakersanddefibrillatorsaresafefromwirelessphoneEMI.FDAhastested
hearingaidsforinterferencefromhandheldwirelessphonesandhelpeddevelopa
voluntarystandardsponsoredbytheInstituteofElectricalandElectronicEngineers
(IEEE).Thisstandard
specifiestestmethodsandperformancerequirementsforhearing
aidsandwirelessphonessothatthatnointerferenceoccurswhenapersonusesa
“compatible”phoneanda“compatible”hearingaidatthesametime.Thisstandard
wasapprovedbytheIEEEin2000.FDAcontinuestomonitortheuseof
wireless
phonesforpossibleinteractionswithothermedicaldevices.Shouldharmful
interferencebefoundtooccur,FDAwillconducttestingtoassesstheinterferenceand
worktoresolvetheproblem.


12.WherecanIfindadditionalinformation?
Foradditionalinformation,pleaserefertothefollowingresources:
FDAwebpageonwirelessphones(http://www.fda.gov/cellphones)
FederalCommunicationsCommission(FCC)RFSafetyProgram
(http://www.fcc.gov/oet/rfsafety)
InternationalCommissiononNon‐IonizingRadiationProtection
(http://www.icnirp.de)
WorldHealthOrganization(WHO)InternationalEMFProject
(http://www.who.int/emf)
HealthProtectionAgency(UK)(http://www.hpa.org.uk/radiation/)

7.6AVOIDPOTENTIALHEARINGLOSS

Prolongedexposuretoloudsounds(includingmusic)isthemostcommoncauseof
preventablehearingloss.Somescientificresearchsuggeststhatusingportableaudio
devices,suchasportablemusicplayersandcellulartelephones,athighvolumesettings
forlongdurationsmayleadtopermanentnoise‐inducedhearingloss.Thisincludesthe

useofheadphones(includingheadsets,earbudsandBluetooth®orotherwireless
devices).Exposuretoveryloudsoundhasalsobeenassociatedinsomestudieswith
tinnitus(aringingintheear),hypersensitivitytosoundanddistortedhearing.Individual
susceptibilitytonoise‐inducedhearinglossandotherpotentialhearingproblemsvaries.
Theamountofsoundproducedbyaportableaudiodevicevariesdependingonthe
natureofthesound,thedevice,thedevicesettingsandtheheadphones.Youshould
followsomecommonsenserecommendationswhenusinganyportableaudiodevice:
Setthevolumeinaquietenvironmentandselectthelowestvolume
atwhich
youcanhearadequately.
Whenusingheadphones,turnthevolumedownifyoucannothearthepeople
speakingnearyouorifthepersonsittingnexttoyoucanhearwhatyouare
listeningto.
Donotturnthevolumeuptoblockoutnoisysurroundings.Ifyou
chooseto
listentoyourportabledeviceinanoisyenvironment,usenoise‐cancelling