2BXH5-M99Wireless three-mode mechanical keyboard

LocalRepresentativeLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(7),oftheCommission’sRules(47C.F.R.)weattestasfollowsfor theproductlistedbelow: FCCIDModelname 2BXH5-M99M99 Weherebyacknowledgeasfollows: i.bothsigneesconfirmthatthepointofcontactacceptsresponsibilitytoactasaUS- AmericanRepresentativeonbehalfoftheapplicant ii.thepointofcontactprovidesthephysicalU.S.addressandemailaslistedbelow iii.bothpartiesmaintaintherequirementsofthisagreementwithoutexpirationdate US-AmericanPointofContactApplicant/ApprovalHolder SignatureSignature CompanyName:GLOCERTSTECHNOLOGYINCDongguanJianjiangE-commerce Co.,Ltd. FRN:00363397370038734000 ContactName:HuiyingFanLuMa Address:19784SUNKISSEDRIDGEDR, RIVERSIDE,CA92507 Room1113,Building1,No.46, LianshengRoad,HumenTown, DongguanCity,Guangdong Province,China Phone:(626)588-8039-- Email:[email protected]@maorbeng.com

CoveredEquipmentAttestationLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(5)(i)-(ii)oftheCommission’sRules(47C.F.R.)weattestasfollows fortheproductlistedbelow: FCCIDModelname 2BXH5-M99M99 We, Applicant CompanyName:DongguanJianjiangE-commerceCo.,Ltd. Address:Room1113,Building1,No.46,Liansheng Road,HumenTown,DongguanCity, GuangdongProvince,China Phone:N/A certifythattheequipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules.Thisincludesthecybersecurityandanti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofistsuccessorsandassignees. Wecertifythat,asofthedateofthefilingoftheapplication,theapplicantisnotidentifiedon theCoveredListasanentityproducing“covered”equipment. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2026-08-18 SignatureDate PrintedNameofSignee:LuMa Company:DongguanJianjiangE-commerce Co.,Ltd. Phone:N/A Email:N/A Address:Room1113,Building1,No.46, LianshengRoad,HumenTown,Dongguan City,GuangdongProvince,China Fax:N/A

DongguanJianjiangE-commerceCo.,Ltd. Date:2026.08.18 FederalCommunicationsCommission EquipmentAuthorizationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Attn:OETDept. FCCID: 2BXH5-M99 ToWhomItMayConcern: WeherebycertifythatwewillmakedeclarationsofconformityforCalssBPCperipheraldevice. EnsurethattheproductcomplieswiththerequirementsidentifiedinKDB896810and47CFR2.948(b). Sincerely, Signature PrintedNameofSignee/Title:LuMa/GeneralManager Company:DongguanJianjiangE-commerceCo.,Ltd. Address:Room1113,Building1,No.46,LianshengRoad,HumenTown,DongguanCity,Guangdong Province,China

ConfidentialityRequestLetter ForCertificationServiceintheUSA FederalCommunicationCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoParagraphs§0.457and0.459oftheCommission’sRules(47C.F.R.)andSection §552(b)(4)oftheFreedomofInformationAct,werequestconfidentialityforthe documentationofthefollowingproducts: FCCIDModelname 2BXH5-M99M99 Fortheproductslistedabove,werequestpermanentconfidentialityforallapplicableexhibits asthereare:  theOperationalDescription  theBlockDiagram theSchematics Theabovelistedexhibitscontaintradesecretsandproprietaryinformationthatcouldbeof benefittoourcompetitors. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2026-08-18 SignatureDate PrintedNameofSignee/Title:LuMa/GeneralManager Company:DongguanJianjiangE-commerceCo.,Ltd. Address:Room1113,Building1,No.46,LianshengRoad,Humen Town,DongguanCity,GuangdongProvince,China Phone:-- Fax:-- Email:--

ReportNo.:CISRR26072755701 Page 64 of 69 9.EXTERNALANDINTERNALPHOTOS 9.1.ExternalPhotos ReportNo.:CISRR26072755701 Page 65 of 69

Label Size:40mm*20mm Wireless three-mode mechanical keyboard Model No.:M99 FCC ID:2BXH5-M99 Label Location

ReportNo.:CISRR26072755701 Page 66 of 69 9.2.InternalPhotos ReportNo.:CISRR26072755701 Page 67 of 69 ANT ReportNo.:CISRR26072755701 Page 68 of 69 ReportNo.:CISRR26072755701 Page 69 of 69 ------Endofthereport-----

ReportNo.:CISRR26072755703 Reporttemplateversion:CISE-TR-001-A0Page:1of5 TESTREPORT RFExposureEvaluation ReportNo.CISRR26072755703 ProjectNo.CISR260727557 FCCID2BXH5-M99 ApplicantDongguanJianjiangE-commerceCo.,Ltd. Address Room1113,Building1,No.46,LianshengRoad,HumenTown, DongguanCity,GuangdongProvince,China ManufacturerDongguanJianjiangE-commerceCo.,Ltd. Address Room1113,Building1,No.46,LianshengRoad,HumenTown, DongguanCity,GuangdongProvince,China ProductNameWirelessthree-modemechanicalkeyboard TrademarkMaorbeng Model/TypereferenceM99 ListedModel(s)- Standard 47CFRPart2.1093 DateofsamplereceiptJuly28,2026 TestdateJuly29,2026toAugust1,2026 IssuedateAugust17,2026 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangceTesting TechnologyCo.,Ltd. ReportNo.:CISRR26072755703 Reporttemplateversion:CISE-TR-001-A0Page:2of5 1.APPLICABLESTANDARD 47CFRPart2.1093:Radiofrequencyradiationexposureevaluation:portabledevices ANSIC95.1–2019:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. 47CFRPart1.1307:Actionsthatmayhaveasignificantenvironmentaleffect,forwhichEnvironmental Assessments(EAs)mustbeprepared. 2.REPORTVERSION VersionNo.IssuedateDescription 00August17,2026Original ReportNo.:CISRR26072755703 Reporttemplateversion:CISE-TR-001-A0Page:3of5 3.RADIOSPECIFICATIONDESCRIPTION Bluetooth Supportedtype:BREDRLE-1Mbps LE-2Mbps 2.4G Supportedtype:GFSK Note:PleaserefertoRFreportfordetailedtechnicalspecifications 4.SIMULTANEOUSTRANSMISSIONANALYSIS ThedeviceuseasingletransmittermoduleandantennaforBluetooth/2.4G,cannottransmitsimultaneously. ReportNo.:CISRR26072755703 Reporttemplateversion:CISE-TR-001-A0Page:4of5 5.TESTRESULT 5.1.Standalonetransmission Limit: KDB447498D01v06,Clause4.3.1a) For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-g SARtestexclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]*[√f(GHz)]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation31The resultisroundedtoonedecimalplaceforcomparison Thevalues3.0and7.5arereferredtoasnumericthresholdsinstepb)below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm, andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto4.1f)isappliedtodetermine SARtestexclusion. Result: Passed TestData Radiotype Frequency (GHz) Maximum output power #1 (dBm) Antenna gain #2 (dBi) Maximum EIRP #3 (dBm) Maximum tune-up #4 EIRP(dBm) Minimum distance (mm) Evaluated value LimitResult BLE2.48-2.722.59-0.130.005.000.31503.00PASS 2.4G2.48-2.712.59-0.120.005.000.31503.00PASS Note #1:ThisvaluecomesfromtheRFtestreport. #2:Thisvalueisdeclaredbytheapplicant. #3:EIRP=Maximumoutputpower+Antennagain. #4:Thisvalueisdeclaredbytheapplicant. ReportNo.:CISRR26072755703 Reporttemplateversion:CISE-TR-001-A0Page:5of5 5.2.Simultaneoustransmission Limit: KDB447498D01v06,Clause4.3.2,47CFRPart1.1307 InthecaseofxedRFsourcesoperatinginthesametime-averagingperiod,orof multiplemobileorportableRFsourceswithinadeviceoperatinginthesametime averagingperiod,ifthesumofthefractionalcontributionstotheapplicablethresholds islessthanorequalto1asindicatedinthefollowingequation. Where a=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(B)ofthissectionforP,includingexistingexempttransmittersandthosebeing added. b=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(C)ofthissectionforThresholdERP,includingexistingexempttransmittersand thosebeingadded. c=numberofexistingfixed,mobile,orportableRFsourceswithknownevaluationforthespeci edminimumdistanceincludingexistingevaluatedtransmitters. P j =theavailablemaximumtime-averagedpowerortheERP,whicheverisgreater,forxed, mobile,orportableRFsourceiatadistancebetween0.5cmand40cm(inclusive). P th,j =theexemptionthresholdpower(P)accordingtoparagraph(b)(3)(i)(B)ofthissectionfor xed,mobile,orportableRFsourcei. ERP j =theERPoffixed,mobile,orportableRFsourcej. ERP th,j =exemptionthresholdERPforfixed,mobile,orportableRFsourcej,atadistanceofat leastλ/2πaccordingtotheapplicableformulaofparagraph(b)(3)(i)(C)ofthissection. Evaluated k =themaximumreportedSARorMPEoffixed,mobile,orportableRFsourcekeither inthedeviceoratthetransmittersitefromanexistingevaluationatthelocationofexposure. ExposureLimit k =eitherthegeneralpopulation/uncontrolledmaximumpermissibleexposure (MPE)orspecicabsorptionrate(SAR)limitforeachxed,mobile,orportableRFsourcek, asapplicablefrom§1.1310ofthischapter. Result:NotApplicable --------EndofReport--------

第1页共 6 页 Antenna Data Sheet RDMCTMZT-RF01 型号名称：RDMCTMZT-RF01 项目类型：键盘板载天线 日期： 2024-05-24 Manufacturer: Shenzhen Shunchao Circuit Co., Ltd Address: No. 5 Minfu Road, Shajing Town, Bao'an District, S henzhen, Guangdong Province 第2页共 6 页 天线平面图： 第3页共 6 页 天线技术参数及环境测试： 电气技术参数 电性能指标 ElectricalSpecifications 频率范围 2400-2500MHz FrequencyRange 2400-2500MHz 电压驻波比 ＜1.92 VSWR ＜1.92 输入阻抗 50Ω InputImpedance 50Ω 方向全向 Direction All 增益 2.0±1dBi Gain 2.0±1dBi 机械指标 MechanicalSpecifications 接口形式 OPEN Inputconnector OPEN 工作温度 -20°C~+70°C WorkingTemperature -20°C~+70°C 工作湿度 20%~80% WorkingHumidity 20%~80% 环境性能测试: 项目测试条件规格 储存环境 在没有指定的情况下测试温度、湿度、气压如下： 1.温度为-20°C~+70°C 2.相对湿度为45%-85% 3.气压为86kpa-106kpa 电气机械性能正常 高低温试验 在70°C与-20°C之间进行5次循环，然后在正常条件下 1-2H，检查外观质量。 尺寸应满足规定并应满 足于机械、电气性能 耐恒定 湿热试验 相对湿度95±3%，试验温度：40°C.持续2H作用后， 试品取出后5min之内测定电气性能，试品在正常条 件下1-2H，检查外观质量 尺寸应满足规定并应满 足于机械、电气性能 振动试验 振频范围10-55HZ，位移幅值：0.35MM，加速度幅值： 50.0M/S，扫频循环次数：30次 电气机械性能正常 跌落试验 1M高空按照互相垂直的轴方向自由跌落3次电气机械性能正常 第4页共 6 页 天线实物图: 天线性能测试图: 第5页共 6 页 2D.3D测试数据（2.4G）: FrequencyEfficiency(%) Gain.(dBi) 2400MHz 43.852.46 2410MHz 45.922.36 2420MHz 46.132.10 2430MHz 46.882.13 2440MHz 47.102.27 2450MHz 48.192.49 2460MHz 47.532.44 2470MHz 48.752.59 2480MHz 46.772.39 2490MHz 47.422.36 2500MHz 45.602.21 Phi02D图:Phi902D图Theta902D图 3D2400： 第6页共 6 页 3D2450： 3D2500

ReportNo.:CISRR26072755701 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of60 TESTREPORT ReportNo.CISRR26072755701 ProjectNo.CISR260727557 FCCID2BXH5-M99 ApplicantDongguanJianjiangE-commerceCo.,Ltd. Address Room1113,Building1,No.46,LianshengRoad,HumenTown, DongguanCity,GuangdongProvince,China ManufacturerDongguanJianjiangE-commerceCo.,Ltd. Address Room1113,Building1,No.46,LianshengRoad,HumenTown, DongguanCity,GuangdongProvince,China ProductNameWirelessthree-modemechanicalkeyboard TrademarkMaorbeng Model/TypereferenceM99 ListedModel(s)- Standard 47CFRPart15.247 DateofsamplereceiptJuly28,2026 TestdateJuly29,2026toAugust1,2026 IssuedateAugust17,2026 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu ReportNo.:CISRR26072755701 Page 2 of 60 Contents 1.STANDARDANDAPPLICABLETESTMETHODS........................................................................................3 2.REPORTVERSION..........................................................................................................................................3 3.TESTDESCRIPTION.......................................................................................................................................4 4.SUMMARY........................................................................................................................................................5 4.1.ProductDescription*..................................................................................................................................5 4.2.RadioSpecificationDescription*..............................................................................................................5 4.3.ModificationofEUT.....................................................................................................................................6 4.4.Deviationfromstandards...........................................................................................................................6 4.5.TestingSite...................................................................................................................................................6 5.TESTCONFIGURATION.................................................................................................................................7 5.1.Testfrequencylist.......................................................................................................................................7 5.2.Descriptionsoftestmode...........................................................................................................................7 5.3.Testsampleinformation.............................................................................................................................7 5.4.Environmentalconditions...........................................................................................................................7 5.5.Statementofthemeasurementuncertainty.............................................................................................7 5.6.EquipmentUsedduringtheTest................................................................................................................8 6.TESTRESULTS.............................................................................................................................................10 6.1.EvaluationResults(Evaluation)...............................................................................................................10 6.1.1.AntennaRequirement............................................................................................................................10 6.2.RadioSpectrumMatterTestResults(RF)...............................................................................................11 6.2.1.ConductedEmissionatACpowerline.................................................................................................11 6.2.2.6dBBandwidth........................................................................................................................................14 6.2.3.MaximumConductedOutputPower.....................................................................................................15 6.2.4.PowerSpectralDensity..........................................................................................................................16 6.2.5.Conductedbandedgeandspuriousemission...................................................................................17 6.2.6.Radiatedbandedgeemission...............................................................................................................18 6.2.7.RadiatedSpuriousEmission(below1GHz).........................................................................................24 6.2.8.RadiatedSpuriousEmission(Above1GHz)........................................................................................28 7.APPENDIXREPORT......................................................................................................................................36 7.1.MaximumConductedOutputPower........................................................................................................36 7.2.PowerSpectralDensity.............................................................................................................................40 7.3.6dBBandwidth...........................................................................................................................................44 7.4.DutyCycle..................................................................................................................................................48 7.5.ConductedSpurious&BandEdgeEmission.........................................................................................52 ReportNo.:CISRR26072755701 Page 3 of 60 1.STANDARDANDAPPLICABLETESTMETHODS Thetestswereperformedaccordingtof…

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ReportNo.:CISRR26072755702 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of53 TESTREPORT ReportNo.CISRR26072755702 ProjectNo.CISR260727557 FCCID2BXH5-M99 ApplicantDongguanJianjiangE-commerceCo.,Ltd. Address Room1113,Building1,No.46,LianshengRoad,HumenTown, DongguanCity,GuangdongProvince,China ManufacturerDongguanJianjiangE-commerceCo.,Ltd. Address Room1113,Building1,No.46,LianshengRoad,HumenTown, DongguanCity,GuangdongProvince,China ProductNameWirelessthree-modemechanicalkeyboard TrademarkMaorbeng Model/TypereferenceM99 ListedModel(s)- Standard 47CFRPart15.247 DateofsamplereceiptJuly28,2026 TestdateJuly29,2026toAugust1,2026 IssuedateAugust17,2026 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu ReportNo.:CISRR26072755702 Page 2 of 53 Contents 1.STANDARDANDAPPLICABLETESTMETHODS........................................................................................3 2.REPORTVERSION..........................................................................................................................................3 3.TESTDESCRIPTION.......................................................................................................................................4 4.SUMMARY........................................................................................................................................................5 4.1.ProductDescription*..................................................................................................................................5 4.2.RadioSpecificationDescription*..............................................................................................................5 4.3.ModificationofEUT.....................................................................................................................................6 4.4.Deviationfromstandards...........................................................................................................................6 4.5.TestingSite...................................................................................................................................................6 5.TESTCONFIGURATION.................................................................................................................................7 5.1.Testfrequencylist.......................................................................................................................................7 5.2.Descriptionsoftestmode...........................................................................................................................7 5.3.Testsampleinformation.............................................................................................................................7 5.4.Environmentalconditions...........................................................................................................................7 5.5.Statementofthemeasurementuncertainty.............................................................................................7 5.6.EquipmentUsedduringtheTest................................................................................................................8 6.TESTRESULTS.............................................................................................................................................10 6.1.EvaluationResults(Evaluation)...............................................................................................................10 6.1.1.AntennaRequirement............................................................................................................................10 6.2.RadioSpectrumMatterTestResults(RF)...............................................................................................11 6.2.1.ConductedEmissionatACpowerline.................................................................................................11 6.2.2.6dBBandwidth........................................................................................................................................14 6.2.3.MaximumConductedOutputPower.....................................................................................................15 6.2.4.PowerSpectralDensity..........................................................................................................................16 6.2.5.Conductedbandedgeandspuriousemission...................................................................................17 6.2.6.Radiatedbandedgeemission...............................................................................................................18 6.2.7.RadiatedSpuriousEmission(below1GHz).........................................................................................24 6.2.8.RadiatedSpuriousEmission(Above1GHz)........................................................................................28 7.APPENDIXREPORT......................................................................................................................................36 7.1.MaximumConductedOutputPower........................................................................................................36 7.2.PowerSpectralDensity.............................................................................................................................39 7.3.6dBBandwidth...........................................................................................................................................42 7.4.DutyCycle..................................................................................................................................................45 7.5.ConductedSpurious&BandEdgeEmission.........................................................................................48 ReportNo.:CISRR26072755702 Page 3 of 53 1.STANDARDANDAPPLICABLETESTMETHODS Thetestswereperformedaccordingtof…

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ReportNo.:CISRR26072755701 Page 62 of 69 8.TESTSETUPPHOTOS ConductedEmissionatACpowerline Radiatedbandedgeemission RadiatedSpuriousEmission(Above1GHz) ReportNo.:CISRR26072755701 Page 63 of 69 RadiatedSpuriousEmission(below1GHz)