2BXS5-D1Al Oral Tutor

YDB-06

ShenzhenJusemeiTechnologyCo.,Ltd. Rev1/26/2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026/8/19 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BXS5-D1 ShenzhenJusemeiTechnologyCo.,Ltd.(“theapplicant”)certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. ShenzhenJusemeiTechnologyCo.,Ltd.(“theapplicant”)certifiesthattheequipmentforwhich authorizationissoughtdoesnotincludecybersecurityoranti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofitssuccessorsandassignees,includingequipmentwithintegratedKaspersky Lab,Inc.(oranyofitssuccessorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24- 886andKDB986446D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (Applicantsignature) ContactName:WenhaiLi

ShenzhenJusemeiTechnologyCo.,Ltd. Rev1/26/2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026/8/19 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BXS5-D1 ShenzhenJusemeiTechnologyCo.,Ltd.(“theapplicant”)certifiesthat,asofthedateofthefilingofthe application,theapplicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofits subsidiariesoraffiliates)asanentityproducing“covered” equipment. Sincerely, (Applicantsignature) ContactName:WenhaiLi

ShenzhenJusemeiTechnologyCo.,Ltd. Rev1/26/2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026/8/19 Ref:AttestationStatementsPart2.911(d)(7)Filing FCCIDorGranteeCode:FCCID:2BXS5-D1or2BXS5 ApplicantFRN:0038799110 ShenzhenJusemeiTechnologyCo.,Ltd.( “ theapplicant ” )certifiesthat,asofthedateofthefilingofthe application,REPAmericaLLCisourdesignatedU.S.agentforserviceofprocessfortheabove referencedFCCID.ShenzhenJusemeiTechnologyCo.,Ltd.acceptstomaintainanagentfornolessthan oneyearafterthegranteehasterminatedallmarketingandimportationortheconclusionofany Commission-relatedproceedinginvolvingtheequipment. REPAmericaLLCaccepts,asofthedateofthefilingoftheapplication,theobligationofthedesignated U.S.agentforserviceofprocessfortheabovereferencedFCCID. DesignatedU.S.AgentInformation: Name:REPAmericaLLC S.AgentFRN:0034192500 Address:350TerrySt.200Longmont,CO80501UnitedStates ContactPerson:MrBenXu Tel.:(719)201-3314 Email:[email protected] Sincerely, WenhaiLiMrBenXu ShenzhenJusemeiTechnologyCo.,Ltd.REPAmericaLLC [InsertApplicantsignature][U.S.Agentsignature]

ShenzhenJusemeiTechnologyCo.,Ltd. Rev11/20/07 FederalCommunicationsCommission AuthorizationandEvaluationDivision ConfidentialityRequestregardingapplicationforcertificationofFCCID:2BXS5-D1. PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestconfidential treatmentofinformationaccompanyingthisapplicationasoutlinedbelow: ExhibitType Schematics Blockdiagram Operationdescription Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedto thepublic.Thepublicdisclosureofthesematerialsmaybeharmfultotheapplicantandprovide unjustifiedbenefitstoitscompetitors. TheapplicantunderstandsthatpursuanttoSection0.457oftheRules,disclosureofthis applicationandallaccompanyingdocumentationwillnotbemadebeforethedateoftheGrant forthisapplication. PursuanttoDA04-1705June15,2004oftheCommission’spublicnotice,wealsorequest temporaryconfidentialtreatmentofinformationaccompanyingthisapplicationasoutlined below: ExhibitType Sincerely, (signature) WenhaiLi

FCCID:2BXS5-D1 ShenzhenJusemeiTechnologyCo.,Ltd. ModelConfirmationLetter We,ShenzhenJusemeiTechnologyCo.,Ltd.,certifytheproduct:Al OralTutor,ModelNo.:d1,d2,d3,d4,d5,d6,d7,d8,d9,d10,d11, d12,d13,d14,d15,d16,d17,d18,d19,d20,d21,d22,d23,d24, d25,d26,d27,d28,d29.Theproducthasmanymodels,onlythe modelnameandcolorisdifferent,andtheotherpartssuchasthe circuitprinciple,pcbandelectricalstructurearethesame.Test samplemodel:d1 Signiture:WenhaiLi CompanyName:ShenzhenJusemeiTechnologyCo.,Ltd. Date:2026/8/19

ShenzhenJusemeiTechnologyCo.,Ltd. M:\MasterDocuments\TEMPLATES\POA_Letter.doc FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Date:2026/8/19 SUBJECT:FCCApplicationforFCCID:2BXS5-D1 ToWhomItMayConcern: We,theundersigned,herebyauthorizeMachaelMoatShenzhenDACETesting TechnologyCo.,Ltd.onourbehalf,toapplytotheFederalCommunicationsCommission onourequipment.AnyandallactscarriedoutbyShenzhenDACETestingTechnology Co.,Ltd.onourbehalfshallhavethesameeffectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct.We,the applicant,arenotsubjecttoadenialoffederalbenefitspursuanttoSection5301ofthe Anti-DrugActof1988,21USC853a,andnopartytotheapplicationissubjecttoadenial offederalbenefitspursuanttothatsection. Regards, (signature) WenhaiLi

FCCID:2BXS5-D1 External FCCID:2BXS5-D1 FCCID:2BXS5-D1 FCCID:2BXS5-D1

LabelLocation: Label:32*25mm AlOralTutor Model:d1 FCCID:2BXS5-D1

FCCID:2BXS5-D1 Internal FCCID:2BXS5-D1 FCCID:2BXS5-D1 ANT FCCID:2BXS5-D1

Page1of1 RFExposureEvaluationReport 1RFEXPOSURE ProductName: AlOralTutor ModelNo: d1 FCCID:2BXS5-D1 NOTE:accordingtoKDB447498D01GeneralRFExposureGuidancev06 ， Unlessspecifically requiredbythepublishedRFexposureKDBprocedures,standalone1-gheadorbodyand10-g extremitySARevaluationforgeneralpopulationexposureconditions,bymeasurementornumerical simulation,isnotrequiredwhenthecorrespondingSARTestExclusionThresholdcondition(s), listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: TheEUTisaportabledevice [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Theproductisusedatadistanceof5mmfromthehumanbody. Here, 1.1EUTRFEXPOSUREEVALUATION Channel (MHz) MaximumPeak Conducted OutputPower (dBm) Tuneup tolerance (dB) Maximum tune-up Power (dBm) Maximum tune-up Power (mW) Calculated value Exclusion threshold EDR 24023.72 4±1 53.1620.9803 BLE 24026.83 7±1 86.3101.9563 Conclusion:thecalculatedvalue≤3.0,SARisexempted.

SymbolsLWTA Dimensions 1.60±0.200.80±0.200.80±0.200.30±0.10 NumberTerminalName ① INPUT ② NC Dimensions(Unit: mm) w ①② ( Side View) ( Bottom View) ( Top View) A T L Shenzhen Ningyi Technology Co., Ltd. WhatsApp+8619196162607 Email Address: [email protected] 1.Bluetooth 2.Dual-band WLAN 3.ISM and UWB 1.Surfacemountedelementwithasmalldimensionof1.6×0.8×0.8mmmeetfutureminiaturizationtrend. 2.EmbeddedandLTCC(lowtemperatureco-firedceramic)technologyisabletointegratewithsystemdesign aswellasbeatifyingthehousingoffinalproduct. 3.Miniaturization,wideband,highstability,lowESR,andlowtolerance. 4.Dual-bandresonancesinthedominantandharmonicmodesenablesmultibandoperations. 5.Novelground-radiationtechniqueenablesradiationfromboththeantennaandthegroundplane. Features: Applications: RF chip ANT chipANT pattern PCB ground Mode-2 Mode-1 P/N: HT-1608-V1 Page1 Layout-1 (3.5mm×6.5mm) Page2 1.5 1 3.5 2.5 0201 footprint (E1) 0201 footprint (E2) 0603 footprint (ANT) RF Input/Output 6.5 0.5 0.5 0.5 1.5 3.5 2.5 0201 footprint (E3) 6.5 Top layer: Bottom layer: 0.5 0.5 RF chip E1 E3 E2 ANT Equivalentcircuit: Shenzhen Ningyi Technology Co., Ltd. WhatsApp+8619196162607 Email Address: [email protected] 2.5 0201 footprint 0603 footprint 10 0.5 1.5 0201 footprint 1.5 3 2.5 10 1.5 2 0.5 0201 footprint Layout-2 (1.5mm×10mm) Top layer: Bottom layer: Page3 RF Input/Output Shenzhen Ningyi Technology Co., Ltd. WhatsApp+8619196162607 Email Address: [email protected] ElectricalCharacteristics: CharacteristicCurves: FeatureSpecification 1 Centralfrequency2.45GHz 2 Bandwidth>150MHz 3 Peak gain1.8 dBi 4 VSWR<2 5 PolarizationLinear 6 AzimuthbeamwidthOmnidirectional 7 Impedance50Ω P/N: HT-1608-V1 Page5 Shenzhen Ningyi Technology Co., Ltd. WhatsApp+8619196162607 Email Address: [email protected] RadiationPattern: Y-ZPlaneX-ZPlane coordinates：   Page5 RadiationPerformance: P/N: HT-1608-V1 X-YPlane Frequency 2400MHz2450MHz2500MHz Avg.gain-1.92-1.35-1.56 Peakgain1.79 Efficie 1.81.66 ncy74.5580.2576.98 Shenzhen Ningyi Technology Co., Ltd. WhatsApp+8619196162607 Email Address: [email protected] Temperature：40±2°C Humidity：90~95%RH Duration：500h Recovery conditions：Room temperature Recovery Time：24h (Class1) or 48h (Class2) Test Temperature Operating Temperature Temperature RelativeHumidity 25°C±5°C -25°C~+125°C 5~40°C 20~70% Notenoughsolder Weak holding forcemay cause bad connection between the chipandPCB. RecommendedSolderingAmounts The optimal solder fillet amounts forre-flowsoldering 天线厚度 以下 The optimal solder fillet amounts for wavesoldering DependabilityTest Too much solder Cracks tend to occur due to large stress. MoistureProof OptimumSolderAmount forReflowSoldering Solderability At least 95% of the terminal electrode is covered by newsolder. Preheating conditions:80 to 120°C;10~30s. Solder Tem p e r at u r e :2 3 5 ±5°CDuration:2 ±0.5s , Solder Tempe r ature:24 5±5°CDu rat ion:2±0.5s P/N: HT-1608-V1 Page6 Shenzhen Ningyi Technology Co., Ltd. WhatsApp+8619196162607 Email Address: [email protected] 10±1S AppliedForce:5NDuration:10±1S Preheating conditions: up-category temperature, 1h Recovery time:24±1h InitialMeasurement Cycling Times: 5 times, 1 cycle, 4steps: Preheating80to120°C;10~30s.SolderTemperature:235±5°C;Duration:2±0.5s;SolderTemperature:245±5°C Duration:2±0.5s;Preheating100to200°C;10±2min. SolderTemperature:265±5°C;Duration:10±1s Cleanthecapacitorwithsolventandexamineitwitha10X(min.)microscope. RecoveryTime:24±2h Recoverycondition:Roomtemperature Test Board: Al 2 O 3 orPCBWarp:1mm Speed:0.5mm/sec. Unit:mm Themeasurementshouldbemadewiththeboardinthe bendingposition. Resistance to Soldering Heat ResistancetoFlexureofSubstrate Temperature CycleTest P/N: HT-1608-V1 Page7 StageTemperature(°C)Time (minutes) Step 1Lower temperature limit 30 Step 2normal atmospheric temperature(+20)2-3 Step 3Upper line temperature30 Step 4normal atmospheric temperature(+20)2-3 Shenzhen Ningyi Technology Co., Ltd. WhatsApp+8619196162607 Email Address: [email protected] Whileinpreheating,pleasekeepthetemperaturedifferencebetweensolderingtemperatureandsurface temperatureofchipsas:T≤150°C. P/N: HT-1608-V1 Page8 Pb-SnsolderingLead-freesoldering Peaktemperature 230°C～250°C 240°C～260°C Shenzhen Ningyi Technology Co., Ltd. WhatsApp+8619196162607 Email Address: [email protected] Dimensions of paper taping Reel（4000pcs/Reel） The guaranteed period for solderability is6months(Under deliver package condition). Temperature:5~40°C/RelativeHumidity:20~70% Unit：mm StoragePeriod P/N: HT-1608-V1 Page9 Shenzhen Ningyi Technology Co., Ltd. WhatsApp+8619196162607 Email Address: [email protected]

V1.0ReportNo.:DACE260817005RF002 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark,TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen,Guangdong,China Web:http://www.dace-lab.comTel:+86-755-23010613E-mail:[email protected] 1 of 100 RFTESTREPORT For ShenzhenJusemeiTechnologyCo.,Ltd. ProductName:AlOralTutor TestModel(s):d1 ReportReferenceNo.:DACE260817005RF002 FCCID:2BXS5-D1 Applicant’sName:ShenzhenJusemeiTechnologyCo.,Ltd. Address: Room201,2ndFloor,BuildingD,TaiwanIndustrialZone,SongbaiRoad, Shiyan,Bao'anDistrict,Shenzhen TestingLaboratory:ShenzhenDACETestingTechnologyCo.,Ltd. Address: 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark, TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen, Guangdong,China TestSpecificationStandard:47CFRPart15.247 DateofReceipt:August17,2026 DateofTest:August17,2026toAugust19,2026 DateofIssue:August19,2026 Result:Pass Note:Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenDACE TestingTechnologyCo.,Ltd.ThisdocumentmaybealteredorrevisedbyShenzhenDACETestingTechnology Co.,Ltd.personnelonly,andshallbenotedintherevisionsectionofthedocument.Thetestresultsinthe reportonlyapplytothetestedsample V1.0ReportNo.:DACE260817005RF002 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark,TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen,Guangdong,China Web:http://www.dace-lab.comTel:+86-755-23010613E-mail:[email protected] 2 of 100 Applyforcompanyinformation Applicant’sName:ShenzhenJusemeiTechnologyCo.,Ltd. Address:Room201,2ndFloor,BuildingD,TaiwanIndustrialZone,Songbai Road,Shiyan,Bao'anDistrict,Shenzhen ProductName:AlOralTutor TestModel(s):d1 SeriesModel(s):d2,d3,d4,d5,d6,d7,d8,d9,d10,d11,d12,d13,d14,d15,d16,d17, d18,d19,d20,d21,d22,d23,d24,d25,d26,d27,d28,d29 TestSpecificationStandard(s):47CFRPart15.247 NOTE1: Themanufacturershouldensurethatallproductsinseriesproductionareinconformitywiththeproductsampledetailedin thisreport.Iftheproductinthisreportisusedinanyconfigurationotherthanthatdetailedinthereport,themanufacturer mustensurethenewsystemcomplieswithallrelevantstandards. Compiledby: Supervisedby: Approvedby: LucyMo/TestEngineerBenTang/ProjectEngineerMachaelMo/Manager August19,2026August19,2026August19,2026 V1.0ReportNo.:DACE260817005RF002 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark,TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen,Guangdong,China Web:http://www.dace-lab.comTel:+86-755-23010613E-mail:[email protected] 3 of 100 RevisionHistoryOfReport VersionDescriptionREPORTNo.IssueDate V1.0OriginalDACE260817005RF002August19,2026 V1.0ReportNo.:DACE260817005RF002 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark,TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen,Guangdong,China Web:http://www.dace-lab.comTel:+86-755-23010613E-mail:[email protected] 4 of 100 CONTENTS 1TESTSUMMARY...................................................................................................................................................6 1.1TESTSTANDARDS........................................................................................................................................6 1.2SUMMARYOFTESTRESULT.........................................................................................................................6 2GENERALINFORMATION....................................................................................................................................7 2.1CLIENTINFORMATION..................................................................................................................................7 2.2DESCRIPTIONOFDEVICE(EUT)..................................................................................................................7 2.3DESCRIPTIONOFTESTMODES....................................................................................................................8 2.4DESCRIPTIONOFSUPPORTUNITS................................................................................................................8 2.5EQUIPMENTSUSEDDURINGTHETEST........................................................................................................9 2.6STATEMENTOFTHEMEASUREMENTUNCERTAINTY....................................................................................11 2.7IDENTIFICATIONOFTESTINGLABORATORY.................................................................................................11 2.8ANNOUNCEMENT........................................................................................................................................11 3EVALUATIONRESULTS(EVALUATION)...........................................................................................................12 3.1ANTENNAREQUIREMENT............................................................................................................................12 3.1.1Conclusion:.................................................................................................................................12 4RADIOSPECTRUMMATTERTESTRESULTS(RF).........................................................................................13 4.1CONDUCTEDEMISSIONATACPOWERLINE................................................................................................13 4.1.1E.U.T.Operation:........................................................................................................................13 4.1.2TestSetupDiagram:...................................................................................................................13 4.1.3TestData:...................................................................................................................................14 4.220DBBANDWIDTH.....................................................................................................................................16 4.2.1E.U.T.Operation:.........................................................................…

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FCCID:2BXS5-D1 ConductedEmissionatACpowerline Emissionsinfrequencybands(below1GHz) FCCID:2BXS5-D1 Emissionsinfrequencybands(above1GHz)