2A9S9-KD-17BBehind-The-Ear Hearing Aid

1 ProductOperationManual HearingAids Thankyouforpurchasingourdigitalearbackhearingaid.Thedigitalear backhearingaidisexquisiteandcompact,withlowsounddistortion,andcanmeet yourneedswell.Ifyouhaveanyquestions,youcanaskthelocalseller,whowill behappytohelpyou.Oraskourtechnicalservicedepartmentdirectly.Please readtheusermanualcarefullybeforeuseanduseitundertheguidanceofadoctor. [ProductName] Digitalearbackhearingaid [ModelandSpecification] KD-17 [StructureComposition] Itiscomposedofhost,earplugandchargingbox. Theoperationfunctionstructureisshowninthefigurebelow: 2 （KD-17、KD-17A）（KD-15、KD-15A、KD-16、KD-16A） 1.Earplugs1.Earplugs 2.Audioduct2.Headset 3.Earhook3.Earhook 4.Microphone4.Microphone 5.Volume-(longpressison/offkey)5.Volume-(longpressison/offkey) 6.Volume+(longpressisthemodeadjustmentkey)6.Volume+(longpressisthemodeadjustmentkey) 7.Chargingcontact7.Chargingcontact [Workingprinciple] Thesignalprocessingpartisdigital,thatis,thereceivedsound signal(analogsignal)isconvertedintodigitalsignal,andthena seriesofprocessingiscarriedout.Afteramplification,itis convertedintoanalogsoundsignalforoutput. [ScopeofApplication] Experiencematchingisusedtocompensatethehearingofpatientswith airconductivehearingloss. 3 SecurityInformationClassification 1.Classificationaccordingtothetypeofelectricshockprevention: internalpowersupply; 2.Classificationaccordingtothedegreeofelectricshockprevention: TypeBapplicationpart; 3.Classifiedaccordingtothedegreeofprotectionagainstincoming liquid:ordinaryequipment; 4.Classifiedaccordingtothesafetydegreewhenusingflammable anestheticgasmixedwithairoroxygenornitrousoxide:itbelongs toequipmentthatcannotbeusedunderthesetwoconditions; 5.Classificationbyoperationmode:continuousoperationequipment; 6.Ratedvoltageofequipment:d.c.3.7V; 7.Whethertheequipmenthastheapplicationpartofprotectionagainst defibrillationdischargeeffect:No; 8.Signalinputandoutput:None; 9.Permanentlyinstalledequipmentornonpermanentlyinstalled equipment:nonpermanentlyinstalledequipment. ProductPerformance 1.Electroacousticperformance 4 Theelectroacousticperformanceoftheproductshallcomplywiththe provisionsinTable1,andtheratedpowercurrentshallnotbegreater than120%ofthenominalvalue. 2.Electroacousticperformanceafterenvironmentaltest 2.1Outputsoundpressurelevel(OSPL90)whentheinputsoundpressure levelis90dB:thedifferencebetweenthemeasuredvaluesbeforeand aftertheenvironmentaltestshallnotbegreaterthan±3dB. 2.2Fullrangesoundgain:thedifferencebetweenthemeasuredvalues beforeandaftertheenvironmentaltestshallnotbegreaterthan± 4dB. 2.3Equivalentinputnoiselevel:thedetectionvalueshallnotbe greaterthan35dB. 2.4Totalharmonicdistortion:thedetectedvalueshallnotbegreater than12%. 5 [Contraindications] 1)Congenitalatresiaormalformationoftheexternalauditory canal,andalargenumberofforeignbodiesintheexternal auditorycanal; 2)Thedeafnessisunstableandthedegreeofhearinglossoften fluctuates; 3)Thechiefcomplaintisaccompaniedbyobviousmaladaptive symptomssuchasheadache,dizziness,earache,tinnitus,etc; 4)Suddendeafnessinrecent3months;Progressiverapiddeafness; Obviousunilateraldeafnessorotheracuteeardiseasesatthe sametime; 5)Middleeareffusionandrecurrentpus; 6)Centraldeafness;Nonorganicdeafness; 7)Minorhearingloss; 8)Patientswithacuteotitisexternaandtympanitis; 9)Patientswithacuteandchronicsuppurativeotitismedia(in thestageofsuppurativeinfection); 10)Patientswhoareallergictothismaterial. [Notes,warningsandtips] 1.Readtheinstructionmanualcarefullyandcompletelybefore use. 6 2.Beforehearingaidfitting,professionalexaminationand hearingtestshallbecarriedout,andthehearingaidshallbe usedundertheguidanceofadoctororaprofessionalhearingaid fitter. 3.Earplugsofappropriatesizeshallbeselectedandtightly pluggedtopreventhearingaidsfromhowling; 4.Donotputthehearingaidintheplacewhereinfantscanreach. 5.Properlyusethefunctionandgraduallyincreasethevolume toavoiddamagingtheearswhenthevolumesuddenlyincreases; Pleaseshutdownwhennotinuse; 6.Keeptheoutersurfaceofthehearingaidclean.Theearplug isreusable.Pleasecleantheearplugregularlytoensurethe normaluseofthehearingaid; 7.Donotimmersethehearingaidinanyliquid.Removethehearing aidbeforeswimming,shampooing,bathingorsprayinghairgel. Afterswimmingorwashing,wearthehearingaidaftertheear canalisdry. 8.Itshallbeshockproof,moisture-proof,hightemperature resistant,andavoiddirectsunlightexposure; 9.Keepawayfromstrongmagneticfield,noisesource,chemicals, etc; 7 10.Pleaseusehearingaidsregularlyandgothrougha3-6month adaptationperiod; 11.Ifyoufeeluncomfortablewithyourearsduringuse,please stopusingimmediately. 12.Hearingaidsshallbemaintainedandcheckedregularlyto ensurethattheyareingoodcondition. 13.Afterusingforaperiodoftime,incaseoflowvolume,loud noise,distortionandotherphenomena,thebatteryshallbe chargedintime 14.Whenthehearingaidisnotused,pleasechargetheproduct regularlytoavoidbatterydamage;Therecommendedcharging intervalforhearingaidsis≤30days. [Otherprecautions] 1)Donotputthebatteryintofiretoavoidexplosion. 2)Hearingaidscanonlybeusedbypeoplewithhearingloss,and othersarenotrecommended. 3)Specialusers:Childrenshouldwearthehearingaidwiththe helpofadults.Fortheuseofhearingaidsbythementallyill, pleaseconsultthedoctor. ProductInstructions 1.Earplugs Holdtheearplugwiththeindexfingerandthumb,andcarefully 8 insertitintotheearcanal.Theearplugandearcanalshould beclosed. 2.Hearingaidwearing Putthehearingaidontheear,withtheearhookandthemain bodyflatagainsttheear. 3.Turnhearingaidon/off Intheoffstate,pressandholdthe"Volume-"keytoturnon thehearingaid;Inthepoweronstate,longpressthe"Volume -"keytoturnoffthehearingaid. 4.Adjustvolume Inthepoweronstate,brieflypressthe"Volume+"buttonto increasethevolumeoftheproduct.Whenthevolumereachesthe maximum,therewillbetwoprompts:"beep"and"beep";Pressthe "Volume-"keybrieflytoadjustthevolumeoftheproduct.When thevolumereachestheminimum,therewillbetwoprompts,"beep" and"beep". 1.Listeningmode Longpressthe"Volume+"buttontoswitchthelisteningmode: 6.Bluetoothconnection(onlyapplicabletoKD-15,KD-16andKD-17) Longpressthekey"Dup…

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Modeldifferencedeclarationletter DifferencesDescription WeKunweiMedicalElectronicsCo.,Ltdstate: Product：Behind-The-EarHearingAid ModelName：KD-17B,KD-X78,KG-7XB,KV-70X Theaboveproductwithsamecircuit,PCBlayout,electricalparts,materialsand wiringstructures,Appearanceshape,thematerialsofdecorativeaccessoriesis same,onlydifferentcolor. Signatory Date:Dec20,2022 <Signature> Name：JustinLiu Title：manager Company:KunweiMedicalElectronicsCo.,Ltd Address:Room1402,BlockB,Builiding2,LonggangTiananCyberPark,HuanggeRoad,Longgang DistrictShenzhenGuangdong,CN518172

C5266091_X8_Ed.1 1/1 LetterofAuthorization KunweiMedicalElectronicsCo.,Ltd Company:KunweiMedicalElectronicsCo.,Ltd Address:Room1402,BlockB,Builiding2,LonggangTiananCyberPark,Huangge Road,LonggangDistrictShenzhenGuangdong,CN518172 ProductName:Behind-The-EarHearingAid ModelNumber:KD-17B,KD-X78,KG-7XB,KV-70X FCCIdentifier:2A9S9-KD-17B WeauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdelCarme,s/n, 08193Bellaterra,Spain,toactonourbehalfonallmattersconcerningthe abovenamedequipment. AnyindividualwithinLGAITechnologicalCenterS.A.isauthorizedtoactonour behalfandtakeactionontheapplication. WedeclarethatauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdel Carme,s/n,08193Bellaterra,Spain,isallowedtoforwardallinformation relatedtotheapprovalprojecttotheFederalCommunicationCommissionand todiscussanyissuesconcerningtheapprovalapplication.Anyandallacts carriedoutbyLGAITechnologicalCenterS.A.onourbehalfshallhavethe sameeffectasactsofourown. Name:JustinLiuDate:Dec20,2022 Title:manager Signatureofapplicant:

C5266091_X10_Ed.2 1/1 KunweiMedicalElectronicsCo.,Ltd OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:Dec20,2022 Subject:RequestforConfidentiality FCCID:2A9S9-KD-17B ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality NOTE2 IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo ☐ BlockDiagram ☒☐ Schematics ☒☐ TestReportNoNo TestSetupPhotosNo ☐ User’sManual ☐ NOTE 1 ☐ InternalPhotos ☐ NOTE 1 ☐ PartsList/TuneUp ☐☐ RFExposureInfoNoNo OperationalDescription ☒☐ CoverLetter(s)NoNo SDRSoftware/SecurityInfo ☐ No NOTE1:Long-TermConfidentialitymaybepermittedunderspecialconditions(SeeII.LONG-TERMCONFIDENTIALITY,Section3of KDB726920,uselastinforce) NOTE2:Short-TermConfidentialitycanberequestedforamaximumof180daysfromthedateofthegrant. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Incaseofshort-termConfidentiality,theapplicantrequeststheexhibitsselected abovearewithheldfrompublicviewforaperiodof______daysfromthedateofthe GrantofEquipmentAuthorizationandpriortomarketing. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name:JustinLiu Title:manager

Page1of3ReportNo.:FCS202211204 Externalphotos Photo1 Photo2 Page2of3ReportNo.:FCS202211204 Photo3 Photo4 Page3of3ReportNo.:FCS202211204 Photo5 Photo6

LabelandLabelLocation FCCID:2A9S9-KD-17B

Page1of3ReportNo.:FCS202211204 Internalphotos Photo1 Photo2 Page2of3ReportNo.:FCS202211204 Photo3 ANT Photo4 Page3of3ReportNo.:FCS202211204 Photo5 Photo6

FCCRFExposure EUTDescription:Behind-The-EarHearingAid ModelNo.:KD-17B,KD-X78,KG-7XB,KV-70X FCCID:2A9S9-KD-17B Equipmenttype:PortableDevice 1.TestProcedure AccordingtoKDB447498D01GeneralRFExposureGuidancev06 The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/ (min.testseparationdistance,mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremity SAR, where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparation distanceis≤50mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whenthe minimumtestseparationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtest exclusion. 2.TestResultofRFExposureEvaluation Outputpower （dBm/mW） Result calculation SAR Exclusion threshold SAR Test exclusion 2402MHz 4.753/2.9874 0.9263.0Yes 2441MHz 4.702/2.9526 0.9233.0Yes 2480MHz 3.811/2.4049 0.7573.0Yes

P/N: SURL321605T66 1 5 Dimensions（Unit：mm） Symbols L W T A Dimensions 3.2+/-0.2 1.6+/-0.2 0.5+/-0.1 0.4+/-0.1 Number Terminal Name ① INPUT ② NC ( Top View ) L w ① ② ( Side View ) T ( Bottom View ) A www.surbaner.com.cn SBRCommunicationhaspossessionofproprietaryinformationprovidedinthisreportandthi s proprietaryinformationshallbekeptinstrictconfidenceandnotdisclosedtoanypersonorfirmwithout thepriorwrittenconsentofSBRCommunicationTechnology. . Page 0 Features 1.SurfaceMountedDeviceswithasmalldimensionof3.6x1.6x.mm 3 meetfutureminiaturization trend. 2.EmbeddedandLTCC(LowTemperatureCo-firedCeramic)technologyisabletofutureintegratewith systemdesignaswellasbeautifyingthehousingoffinalproduct. 3.HighStabilityinTemperature/HumidityChange Applications 1.Bluetooth 2.WirelessLAN 3. ISMband2.4GHzwirelessapplications 2 Evaluation Board and Matching Circuits Unit:mm 50ΩFeeding Line GND VIA πType Matching Network Clearance Area 5.0 6.0 1.25 1 . 8 2.25 0 . 7 4 0 . 7 4 3 . 3 4 3 . 7 7 1.0 1.63 5.6nH 0.5pF www.surbaner.com.cn SBRCommunicationhaspossessionofproprietaryinformationprovidedinthisreportandthi s proprietaryinformationshallbekeptinstrictconfidenceandnotdisclosedtoanypersonorfirmwithout thepriorwrittenconsentofSBRCommunicationTechnology. . Page P/N: SURL321605T66 3 rb Electrical Characteristics Characteristic curve No. Item Specifications Central Frequency 2500MHz Band Width 100 MHz typ. Peak Gain 4.08 dBi Return Loss ≤2.0 Polarization Linear Azimuth Beam width Omni-directional Impedance www.suaner.com.cn SBRCommunicationhaspossessionofproprietaryinformationprovidedinthisreportandthi s proprietaryinformationshallbekeptinstrictconfidenceandnotdisclosedtoanypersonorfirmwithout thepriorwrittenconsentofSBRCommunicationTechnology. . Page 50Ω 1 2 3 4 5 6 8 P/N: SURL321605T66 7 Model Name N/A 4e rb Radiation Pattern coordinates： www.suaner.com.cn SBRCommunicationhaspossessionofproprietaryinformationprovidedinthisreportandthi s proprietaryinformationshallbekeptinstrictconfidenceandnotdisclosedtoanypersonorfirmwithout thepriorwrittenconsentofSBRCommunicationTechnology. . Pag P/N: SURL321605T66 Address:Room 1402,Block B,Builiding 2,Longgang Tianan Cyber Park, Manufacture's Name:Kunwei Medical Electronics Co., Ltd Huangge Road,Longgang District Shenzhen Guangdong,CN518172 Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBi ) Max: 5 Min: -35 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 3.93178 -25.0815 -3.48713 2450 3.95801 -33.5605 -2.88012 2500 4.08056 -19.0318 -1.79139 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBi) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -6.1530 -24.1420 -13.0295 2450 -3.7054 -26.5836 -10.6700 2500 -2.32122 -30.4301 -9.70536

FCCTestReport ReportNo:FCS202211204W01 Issuedfor Applicant: KunweiMedicalElectronicsCo.,Ltd Address: Room1402,BlockB,Builiding2,LonggangTiananCyber Park,HuanggeRoad,LonggangDistrictShenzhen Guangdong,CN518172 ProductName: Behind-The-EarHearingAid BrandName: N/A ModelName: KD-17B SeriesModel: KD-X78,KG-7XB,KV-70X FCCID: 2A9S9-KD-17B IssuedBy:FluxComplianceServiceLaboratory Add:Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-Tech Industrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.FCS-lab.com Page 2 of47ReportNo.:FCS202211204W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.FCS-lab.com TESTRESULTCERTIFICATION Applicant’sName......................:KunweiMedicalElectronicsCo.,Ltd Address......................................: Room1402,BlockB,Builiding2,LonggangTiananCyberPark, HuanggeRoad,LonggangDistrictShenzhenGuangdong, CN518172 Manufacture'sName................:KunweiMedicalElectronicsCo.,Ltd Address......................................: Room1402,BlockB,Builiding2,LonggangTiananCyberPark, HuanggeRoad,LonggangDistrictShenzhenGuangdong, CN518172 ProductDescription ProductName...........................:Behind-The-EarHearingAid BrandName ............................... :N/A ModelName..............................:KD-17B SeriesModel .............................. :KD-X78,KG-7XB,KV-70X TestStandards..........................:FCCRulesandRegulationsPart15SubpartC,Section247 TestProcedure .......................... :ANSIC63.10:2013 ThisdevicedescribedabovehasbeentestedbyFluxComplianceServiceLaboratory,thetestresults showthattheequipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditis applicableonlytothetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofFluxCompliance ServiceLaboratory,thisdocumentmaybealteredorrevisedbyFluxComplianceServiceLaboratory, personalonly,andshallbenotedintherevisionofthedocument.. DateofTest .................................. : Date(s)ofperformanceoftests . :Nov29,2022~Dec21,2022 DateofIssue.................................:Dec21,2022 TestResult.....................................:Pass Testedby: (ScottShen) Reviewedby : (DukeQian) Approvedby: (JackWang) Page 3 of47ReportNo.:FCS202211204W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.FCS-lab.com TableofContentsPage 1.SUMMARYOFTESTRESULTS..............................................................................................6 1.1TESTFACTORY................................................................................................................7 1.2MEASUREMENTUNCERTAINTY.....................................................................................7 2.GENERALINFORMATION.......................................................................................................8 2.1GENERALDESCRIPTIONOFTHEEUT..........................................................................8 2.2BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED.............10 2.3DESCRIPTIONOFNECESSARYACCESSORIESANDSUPPORTUNITS.................11 2.4EQUIPMENTSLIST.........................................................................................................12 3CONDUCTEDEMISSIONMEASUREMENT..........................................................................13 4.20DBBANDWIDTH...............................................................................................................17 4.1Limit..................................................................................................................................17 4.2TestProcedure.................................................................................................................17 4.3Testsetup.........................................................................................................................17 4.4Testresults.......................................................................................................................17 4.5OriginalTestData.............................................................................................................18 5.CONDUCTEDOUTPUTPOWER...........................................................................................20 5.1LIMIT................................................................................................................................20 5.2TESTPROCEDURE........................................................................................................20 5.3TESTSETUP...................................................................................................................20 5.4TESTRESULTS...............................................................................................................20 6NUMBEROFHOPPINGCHANNEL.......................................................................................23 6.1LIMIT................................................................................................................................23 6.2TESTPROCEDURE........................................................................................................23 5.3TESTSETUP...................................................................................................................23 6.4EUTOPERATIONCONDITIONS....................................................................................23 6.5TESTRESULTS...............................................................................................................24 7.BANDEDGEANDSPURIOUS(CONDUCTED)....................................................................25 7.1LIMIT................................................................................................................................25 7.2TESTPROCEDURE...........................…

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Page 1 of2ReportNo.:FCS202211204 Blow1GHzforradiatedemissiontestsetup Above1GHzforradiatedemissiontestsetup Page 2 of2ReportNo.:FCS202211204 Conductionemissiontestingdevice