2BGQJ-C98Keyboard

HunanYunxiElectronicCommerceCo.,Ltd. Room99,3rdFloor,A2Building,ChuangguIndustrialPark,No.568QueyuanRoad, TianxinDistrict,ChangshaCity,HunanProvince,China410114 AttestationStatements NotCoveredEntityApplicant&NotCoveredEquipment To:FederalCommunicationsCommissionDate:Feb.9,26 7435OaklandMillsRoad, Columbia,MD21046,USA Ref:InformationRequiredbySection2.911(d)(5)(i)&(ii) FCCID:2BGQJ-C98 HunanYunxiElectronicCommerceCo.,Ltd.(“theapplicant”)certifiesthat,asofthedateofthefilingof theapplication,theapplicantisnotidentifiedontheCoveredList,establishedpursuantto§1.50002of referencechapter,asanentityproducing“covered”communicationequipment.Theequipmentfor whichauthorizationissoughtisnot“covered”telecommunicationsequipmentandvideosurveillance equipmentproducedbyentitiesidentifiedontheCommission’sCoveredListthatprohibitedfrom receivinganequipmentauthorizationpursuanttosection§2.903oftheFCCrules. Sincerelyyours, ApplicantSignature PrintedName:YilongWang Title:Manager Address:Room99,3rdFloor,A2Building,ChuangguIndustrialPark,No.568QueyuanRoad,TianxinDistrict, ChangshaCity,HunanProvince,China410114 Tel.:13538214502 Email:[email protected]

HunanYunxiElectronicCommerceCo.,Ltd. Address:Room99,3rdFloor,A2Building,ChuangguIndustrialPark,No.568QueyuanRoad, TianxinDistrict,ChangshaCity,HunanProvince,China410114 1|Page AttestationStatements To:FederalCommunicationsCommissionDate:Feb.9,26 7435OaklandMillsRoad, Columbia,MD21046,USA Subject:AttestationofCompliancewithFCCCoveredListSoftwareRequirements FCCID:[2BGQJ-C98] ProductName:[Keyboard] Thisletterservesasanattestationthattheequipmentidentifiedabove☐is/☒isnot(selectone)"covered" softwareasdefinedundertheFederalCommunicationsCommission(FCC)CoveredListrequirements,as outlinedinFCC22-84andKDB986446. Specifically,theundersignedcertifiesthattheequipmentforwhichauthorizationissought: 1.Doesnotcontaincybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab, Inc.oranyofitssuccessors,assignees,parents,subsidiaries,affiliates,oranyentitythathasrebranded orrelabeledsoftwareproducedbytheaforementionedentities. 2.Doesnothavethecapabilitytostore,run,ordeliveranysoftwareidentifiedontheFCCCoveredList, includingbutnotlimitedtocybersecurityandanti-virussoftware. Tosupportthisattestation,theappendixevaluationdocumentationhasbeenpreparedandisincludedinthe certificationfiling. Thisattestationisbasedonathoroughevaluationofthedevice'sdesign,functionality,andsoftware environment.Theundersignedaffirmsthattheinformationprovidedisaccurateandcompletetothebestof theirknowledge. Sincerelyyours, ApplicantSignature PrintedName:YilongWang Title:Manager Address:Room99,3rdFloor,A2Building,ChuangguIndustrialPark,No.568QueyuanRoad,TianxinDistrict, ChangshaCity,HunanProvince,China410114 Tel.:13538214502 Email:[email protected] HunanYunxiElectronicCommerceCo.,Ltd. Address:Room99,3rdFloor,A2Building,ChuangguIndustrialPark,No.568QueyuanRoad, TianxinDistrict,ChangshaCity,HunanProvince,China410114 2|Page EvaluationregardingtotheCoveredListSoftware: Compliance Methodology EvaluationProcessResults Deviceis Inherent compliance ☒ TheChipset(s)usedislimitedtorun theCybersecurityoranti-virus software. Compliance ☒ TheMemoryusedislimitedtorunthe Cybersecurityoranti-virussoftware. Compliance ☒ Thereisstoragecapacitylimitationfor storeorinstalltheCybersecurityor anti-virussoftware. Compliance ☒ Operatingsystemusedislimitedto run,installordelivertheCybersecurity oranti-virussoftware. Compliance Deviceisnot Inherent compliance ☐ EvaluationBasedonSoftware BillofMaterials(SBoM) Seeattached“SBoM“ Note:TheSBoMcontentislimited tothescopeofcoveredlist software(e.g.antivirusand cybersecuritysoftware). ☐ EvaluationBasedonScanfor Softwareonthedevice ☐ EvaluationBasedonFilesystemscan ☐ EvaluationBasedonRunning softwarecheck

HunanYunxiElectronicCommerceCo.,Ltd. Address:Room99,3rdFloor,A2Building,ChuangguIndustrialPark,No.568QueyuanRoad,Tianxin District,ChangshaCity,HunanProvince,China410114 FileNo.:2026SNUSDA017 U.S.AgentLetterofAttestation To:FederalCommunicationsCommission 7435OaklandMillsRoad,Columbia,MD21046,USA Date:Feb.12,26 Ref: AttestationStatement–Part 2.911(d)(7)filing FCCID:2BGQJ-C98 [HunanYunxiElectronicCommerceCo.,Ltd.](“theapplicant”)certifiesthat,asofthedateofthe filingoftheapplication,[TTSMARKETINC.](“theagent”)isourdesignatedU.S.agentforserviceof processfortheabovereferenceFCCID.Theapplicantacceptstomaintainanagentforserviceof processintheUnitedStatesfornolessthanoneyearaftereitherthegranteehaspermanently terminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S.,orthe conclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolvingtheequipment, whicheverislater.TheapplicantfurtheracknowledgesitisourresponsibilitytoinformtheFCC whenevertheagentinformationchanges. [TTSMARKETINC.]("theagent)understanditistheagent'sobligationtoacceptserviceofprocess intheUnitedStatesformattersrelatedtotheapplicableequipment,andatthephysicalU.S. addressandemailaddress. DesignatedU.S.Agent CompanyName:TTSMARKETINC. FRN:0036806057 GC:N/A Address:1178BroadwaySte324,NewYork,NY 10001.USA Signature: ContactPerson:MaverickLim Tel:001-(646)305-2908Email:[email protected] Applicant CompanyName:HunanYunxiElectronicCommerceCo.,Ltd. FRN:0035493568 Address:Room99,3rdFloor,A2Building,Chuanggu IndustrialPark,No.568QueyuanRoad,TianxinDistrict, ChangshaCity,HunanProvince,China410114 Signature: ContactPerson:YilongWang Tel:13538214502Email:[email protected]

HunanYunxiElectronicCommerceCo.,Ltd. Address:Room99,3rdFloor,A2Building,ChuangguIndustrialPark,No.568QueyuanRoad, TianxinDistrict,ChangshaCity,HunanProvince,China410114 (Feb.9,26) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:ConfidentialityRequestfor:FCCID:2BGQJ-C98 PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestpermanent confidentialtreatmentoftheexhibitsaccompanyingthiscertificationapplicationasoutlinedbelow:  BlockDiagram  Schematics  OperationalDescription Theaboveexhibitscontaintradesecretsand/orproprietaryinformationthatarenotpubliclyavailableand materialsthattheApplicanthasspentconsiderableeffortsindeveloping.Publicdisclosureofthesemay beharmfultotheApplicantandgiveanunfairadvantagetocompetitorsonthemarket. PursuanttoDA04-1705,theapplicantalsorequeststemporaryconfidentialtreatmentoftheexhibits outlinedbelowforaperiodof(upto180)daysfromthedateofequipmentauthorizationandpriorto marketingintheUnitedStatestopreventtheprematurereleaseofanysensitiveinformation.Applicantis awareoftheirresponsibilitytonotifyDERYCOMintheeventinformationregardingtheproductorthe productismadeavailabletothepublicbeforetherequestedperiodhasexpired. UserManual Sincerely, (Signature) Title:Manager Address:Room99,3rdFloor,A2Building,ChuangguIndustrialPark,No.568QueyuanRoad,Tianxin District,ChangshaCity,HunanProvince,China410114 Tel.:13538214502 Email:[email protected]

HunanYunxiElectronicCommerceCo.,Ltd. Address:Room99,3rdFloor,A2Building,ChuangguIndustrialPark,No.568QueyuanRoad, TianxinDistrict,ChangshaCity,HunanProvince,China410114 (Feb.9,26) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:AgentAuthorizationforFCCID:2BGQJ-C98 I,theundersigned,herebyauthorize(ShenzhenBKCTestingCo.,Ltd.)toactonourbehalfinallmatters relatingtothisapplicationforequipmentcertification. Anyactcarriedoutby(ShenzhenBKCTestingCo.,Ltd.)shallhavethesameeffectasourownandI acknowledgethatallresponsibilityforcomplyingwiththetermsandconditionsofcertification,as specifiedbyDERYCOMCERTIFICATIONSERVICES,INC.,stillresideswith(HunanYunxiElectronic CommerceCo.,Ltd.). WecertifythatwearenotsubjecttoadenialoffederalbenefitsthatincludesFCCbenefitspursuantto Section5301oftheAnti-DrugAbuseActof1988,21U.S.C.§862,andthatnopartytotheapplication,as definedin47CFR§1.2002(b),issubjecttoadenialoffederalbenefitsthatincludesFCCbenefits pursuanttothatsection. Sincerely, (Signature) (FullnameofcontactpersonlistedonFCC’swebsite) (Title):Manager Tel:13538214502 Fax:13538214502 Email:[email protected]

HunanYunxiElectronicCommerceCo.,Ltd. ProductSimilarityDeclaration Productname:Keyboard Modelname: C98,AL21,AL100,AL104,B21,B99,B100,B104,C100,C104,QL98,X21, X104,E21,E104,T21,T104,V100,Z60,Z100,H68,H75,H80,H98,H100, H104,MAD60,MAD68,MAD75,MAD80,MAD98,MAD100,S68,S75,S80, S98,S100,S104 We(HunanYunxiElectronicCommerceCo.,Ltd.)herebystate thatallthemodelsareelectricalidenticalincludingthesame softwareparameterandhardwaredesign(i.e.,circuitdesign,PCB Layout,RFmodule/circuit,antennatype(s)andantennalocation, componentsonPCB,etc.,),samemechanicalstructureand design(includingproductenclosure,materials,etc.,),theonly differenceisthemodelnumberandcolor. Signature: Name:YilongWang Title:manager Place,date:Changsha,2026.02.06

FCCID:2BGQJ-C98ExternalPhotos

Label: Keyboard Model：C98 FCCID:2BGQJ-C98

InternalPhotos FCCID:2BGQJ-C98 FPCBAnt

FCCID:2BGQJ-C98 RFExposureEvaluation AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1093， UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone 1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposure conditions,bymeasurementornumericalsimulation,isnotrequiredwhenthe correspondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤5.0mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f (GHz) ]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, SoaSARtestisnotrequired ModeFrequen cy (MHz) Max Power (dBm) Target power W/tolerance (dBm) Maxtune uppower tolerance (dBm) Max Power (mW) Min. Distance (mm) Calc. thresholds limit EDR GFSK 2402-0.19 -1±1 01.00005.000.31003.0 2441-0.44 -1±1 01.00005.000.31253.0 2480-1.80-1±101.00005.000.31503.0 Π /4-DQ PSK 24020.260±111.25895.000.39023.0 24410.43 0±1 11.25895.000.39343.0 2480-0.91 0±1 11.25895.000.39653.0 8-DPS K 24021.280.5±11.51.41255.000.43783.0 24411.000.5±11.51.41255.000.44143.0 2480-0.30 0.5±1 1.51.41255.000.44493.0 2.4GGFSK 2405-2.29 -3±1 -20.63105.000.19573.0 2441-2.78-3±1-20.63105.000.19713.0 2475-2.75-3±1-20.63105.000.19853.0

深圳市泓频科技有限公司 Antenna Test Report Customer Projec t Antenna BAND Product Descriptio 2.4G n Product N FPC+Cable o 深圳市泓频科技有限公司 Product Overview & Dimension Front-ANT 3 深圳市泓频科技有限公司 Purpose This report is to measure the performance of BT antenna for . The antenna operating frequency at2.4GAll test data are showed as Conten below. t 1. Product Overview & Dimension 2. Test system 3. Antenna Matching Network 4. Test Result 4.1 S11 Parameter 4.2 BT Efficiency 4.3 Antenna assembly location diagram 4.4 Antenna assembly location diagram 4 深圳市泓频科技有限公司 2.Test System Sequence Number Test Itemequipment S parameterVSWR Agilent 5071C & Agilent 5062A OTA TestTRP&TISCMW500 &CMW270 ETS& SATIMO&Agilent8960 Gain & Efficiency Gain & Efficiency ETS&SATIMO Agilent 5071C 深圳市泓频科技有限公司 S11 Parameter 深圳市泓频科技有限公司 2.4G 无源测试数据 Frequency (MHz)Gain(dBi)Efficiency(%) 2400 241 0.123.57 0 242 -0.8318.97 0 243 -1.0218.54 0 244 -0.3722.97 0 245 -216.58 0 246 -2.4316.18 0 247 -1.1321.92 0 248 -1.9617.97 0 249 -2.416.34 0 250 -1.6219.88 0-2.2416.91

FCCID2.4 FCC_BLE(Part15.247)TestData ReportNo.:BKC26010310AE-1 FCCID:2BGQJ-C98 TableofContents 1.-6dBBandwidth............................................................................................................................................................2 2.99%OccupiedBandwidth............................................................................................................................................4 3.DutyCycle.....................................................................................................................................................................6 4.PeakOutputPower.......................................................................................................................................................8 5.PowerSpectralDensity...............................................................................................................................................10 6.Bandedge....................................................................................................................................................................12 7.SpuriousEmission.......................................................................................................................................................14 Page2of16 1.-6dBBandwidth ConditionAntennaRateFrequency(MHz)-6dBBW(kHz)limit(kHz)Result NVNTANT12Mbps2405.001398.37500Pass NVNTANT12Mbps2441.001392.07500Pass NVNTANT12Mbps2475.001385.00500Pass -6dB_Bandwidth_NVNT_ANT1_2Mbps_2405 -6dB_Bandwidth_NVNT_ANT1_2Mbps_2441 -6dB_Bandwidth_NVNT_ANT1_2Mbps_2475 Page3of16 Page4of16 2.99%OccupiedBandwidth ConditionAntennaRateFrequency(MHz)99%%BW(MHz) NVNTANT12Mbps2405.001.996 NVNTANT12Mbps2441.002.003 NVNTANT12Mbps2475.001.983 99%_Occupied_Bandwidth_NVNT_ANT1_2Mbps_2405 99%_Occupied_Bandwidth_NVNT_ANT1_2Mbps_2441 99%_Occupied_Bandwidth_NVNT_ANT1_2Mbps_2475 Page5of16 Page6of16 3.DutyCycle ConditionAntennaRateFrequency(MHz)Dutycycle(%)Duty_factor NVNTANT12Mbps2405.008.2010.86 NVNTANT12Mbps2441.008.9410.49 NVNTANT12Mbps2475.008.2010.86 Duty_Cycle_NVNT_ANT1_2Mbps_2405 Duty_Cycle_NVNT_ANT1_2Mbps_2441 Duty_Cycle_NVNT_ANT1_2Mbps_2475 Page7of16 Page8of16 4.PeakOutputPower ConditionAntennaRate Frequency (MHz) Max.Conducted Power(dBm) Max.Conducted Power(mW) Limit(mW)Result NVNTANT12Mbps2405.00-2.290.591000Pass NVNTANT12Mbps2441.00-2.780.531000Pass NVNTANT12Mbps2475.00-2.750.531000Pass Peak_Output_Power_NVNT_ANT1_2Mbps_2405 Peak_Output_Power_NVNT_ANT1_2Mbps_2441 Peak_Output_Power_NVNT_ANT1_2Mbps_2475 Page9of16 Page10of16 5.PowerSpectralDensity ConditionAntennaRateFrequency(MHz) PowerSpectral Density(dBm/3kHz) Limit(dBm/3kHz)Result NVNTANT12Mbps2405.00-7.718Pass NVNTANT12Mbps2441.00-8.238Pass NVNTANT12Mbps2475.00-7.828Pass Power_Spectral_Density_NVNT_ANT1_2Mbps_2405 Power_Spectral_Density_NVNT_ANT1_2Mbps_2441 Power_Spectral_Density_NVNT_ANT1_2Mbps_2475 Page11of16 Page12of16 6.Bandedge ConditionAntennaModulation TX_Frequency (MHz) Max. Mark_freq(MHz) Ref_level(dBm) Spurious level(dBm) limit(dBm)Result NVNTANT12Mbps2405.002399.600-2.333-65.486-22.333Pass NVNTANT12Mbps2475.002498.191-2.781-65.213-22.781Pass 1_Reference_Level_NVNT_ANT1_2Mbps_2405 2_Bandedge_NVNT_ANT1_2Mbps_2405 1_Reference_Level_NVNT_ANT1_2Mbps_2475 Page13of16 2_Bandedge_NVNT_ANT1_2Mbps_2475 Page14of16 7.SpuriousEmission ConditionAntennaModulation TX_Frequency (MHz) Ref_level(dBm) Spurious level(dBm) limit(dBm)Result NVNTANT12Mbps2405.00-2.333-52.263-22.333Pass NVNTANT12Mbps2441.00-2.818-52.245-22.818Pass NVNTANT12Mbps2475.00-2.781-51.439-22.781Pass 1_Reference_Level_NVNT_ANT1_2Mbps_2405 2_Spurious_Emission_NVNT_ANT1_2Mbps_2405 1_Reference_Level_NVNT_ANT1_2Mbps_2441 Page15of16 2_Spurious_Emission_NVNT_ANT1_2Mbps_2441 1_Reference_Level_NVNT_ANT1_2Mbps_2475 Page16of16 2_Spurious_Emission_NVNT_ANT1_2Mbps_2475

ShenzhenBKCTestingCo.,Ltd.ReportNo.:BKC26010310AE-1 TestReportTel:4000-875-3820755-84829082Web:Http://www.bkc-lab.comPage1of28 TESTREPORT Applicant:HunanYunxiElectronicCommerceCo.,Ltd. Address: Room99,3rdFloor,A2Building,ChuangguIndustrialPark,No.568 QueyuanRoad,TianxinDistrict,ChangshaCity,HunanProvince, China410114 Manufacturer: HunanYunxiElectronicCommerceCo.,Ltd. Address: Room99,3rdFloor,A2Building,ChuangguIndustrialPark,No.568 QueyuanRoad,TianxinDistrict,ChangshaCity,HunanProvince, China410114 ProductName:Keyboard ModelNumber: C98 (othermodelspleaseseepage4) Trademark:YUNZII FCCID:2BGQJ-C98 TestDate: Dec.19,2025–Jan.21,2026 DateofReport: Jan.21,2026 TestResult: ThisdevicedescribedabovehasbeentestedbyBKC,andthetest resultsshowthattheequipmentundertest(EUT)isincompliance withtheStandardrequirements.Anditisapplicableonlytothetested sampleidentifiedinthereport. TestProcedureUsed: Standards:FCCCFRTitle47Part15SubpartCSection15.247 ANSIC63.10:2020 Preparedby(TestEngineer): StenHuang Reviewer(Supervisor): CaseyWang Approved(Manager): JerryLiao ShenzhenBKCTestingCo.,Ltd.ReportNo.:BKC26010310AE-1 TestReportTel:4000-875-3820755-84829082Web:Http://www.bkc-lab.comPage2of28 TABLEOFCONTENT 1.GeneralInformation......................................................................................4 1.1.DescriptionofDevice(EUT).......................................................................................................................4 1.2.ChannelList..................................................................................................................................................4 1.3.Summaryoftestresult................................................................................................................................5 1.4.SpecialAccessoriesandAuxiliaryEquipment........................................................................................5 1.5.Testmode......................................................................................................................................................5 1.6.BlockDiagram...............................................................................................................................................6 1.7.TestConditions.............................................................................................................................................6 1.8.MeasurementUncertainty(95%confidencelevels,k=2)......................................................................6 1.9.TestFacility....................................................................................................................................................7 1.10.TestEquipment...........................................................................................................................................7 2.Conductedemissionatthemainsterminalstest......................................9 2.1.Limit................................................................................................................................................................9 2.2.TestSetup......................................................................................................................................................9 2.3.TestProcedure..............................................................................................................................................9 2.4.TestResult...................................................................................................................................................10 3.RadiatedSpuriousEmissions...................................................................12 3.1.Limit..............................................................................................................................................................12 3.2.TestSetup....................................................................................................................................................13 3.3.TestProcedure............................................................................................................................................15 3.4.TestResult...................................................................................................................................................16 4.ConductedSpuriousEmissions................................................................21 4.1.Limit..............................................................................................................................................................21 4.2.TestSetup....................................................................................................................................................21 4.3.TestProcedure............................................................................................................................................21 4.4.TestResult...................................................................................................................................................22 5.BandEdgeMeasurement...........................................................................23 5.1.Limit..............................................................................................................................................................23 5.2.Testsetup....................................................................................................................................................23 5.3.TestProcedure............................................................................................................................................23 5.4.TestResult...................................................................................................................................................23 6.-6dBBandwidthand99%BandwidthMeasurement..............................24 6.1.Limit.....................................................................…

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TestPhoto FCCID:2BGQJ-C98