LS860 Owner’s Manual Boost MACH LS860 English

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Safety

Intheexampletotheleft,ifahearingaidmeetstheM2level

ratingandthewirelessphonemeetstheM3levelrating,the

sumofthetwovaluesequalM5.Thisshouldprovidethe

hearingaiduserwith“normalusage”whileusingtheir

hearingaidwiththeparticularwirelessphone.“Normalusage”inthis

contextisdenedasasignalqualitythat’sacceptablefornormaloperation.

TheMmarkisintendedtobesynonymouswiththeUmark.TheTmark

isintendedtobesynonymouswiththeUTmark.TheMandTmarksare

recommendedbytheAllianceforTelecommunicationsIndustriesSolutions

(ATIS).TheUandUTmarksarereferencedinSection20.19oftheFCC

Rules.TheHACratingandmeasurementprocedurearedescribedinthe

AmericanNationalStandardsInstitute(ANSI)C63.19standard.

Whenyou'retalkingonacellphone,it'srecommendedthatyouturntheBT

(Bluetooth)orWLANmodeoffforHAC

For information about hearing aids and digital wireless phones

Wireless Phones and Hearing Aid Accessibility

http://www.accesswireless.org/Home.aspx

FCC Hearing Aid Compatibility and Volume Control

http://www.fcc.gov/cgb/consumerfacts/hac_wireless.html

Caution: Avoid potential hearing loss.

Prolongedexposuretoloudsounds(includingmusic)isthemostcommon

causeofpreventablehearingloss.Somescientic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.

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Owner’s Manual Boost MACH LS860 English - Page 79