2BFZ8-BMW2412Wireless Mouse

FCC Caution: This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesiredoperation. Any changes or modifications not expressly approved by the party responsiblefor compliance could void the user'sauthority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and,if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interferencewill not occur in a particular installation.If this equipment does cause harmful interference to radio or television reception,which can be determined by turning theequipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit differentfrom that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician forhelp.The device has been evaluated to meet general RF exposure requirement. The device can beused in portable exposure condition without restriction.

1/1 USA MEIHUATRADINGINC LETT ER OF ATTESTATION TO: Officeof EngineeringTechnology FederalCommunicationsCommission 7435 OaklandMills Road Columbia,MD 21046 USA MEIHUATRADINGINC for Serviceof Process: CompanyName:USA MEIHUATRADINGINC FRN: 0033406166 ContactName:HarleyQuinn Address:5379 Pine ValleyCt BoulderCO 80301UnitedStates TelephoneNo: 1-312-363-9424 Email:[email protected] Applicant: Companyname:HAINANJIAMEIHUACHENGINFORMATIONTECHNOLOGYCO., LTD ProductDescription:WirelessMouse Granteecode:2BFZ8 FCC ID: 2BFZ8-BMW2412 FRN:0035317916 ContactName :Jie Wang Email:[email protected] Address:Room2716,27thFloor Block B,HuarunDashaNo.7,MingzhuRoad,Longhua District,Haikou,Hainan,China [HAINANJIAMEIHUACHENGINFORMATIONTECHNOLOGYCO., LTD] certifiesthat, as of the date of this filingof the applicationwith the TCB,[USAMEIHUATRADINGINC] is our designatedUS agentfor serviceof processfor the abovereferencedFCC ID. [HAINAN JIAMEIHUACHENGINFORMATIONTECHNOLOGYCO., LTD] acceptsto maintainan agentfor no less than one year after the granteehas terminatedall marketingand importationor the conclusionof any commissionrelatedproceedinginvolvingequipment.[USA MEIHUATRADING INC] accepts,as of the date of the filing of the application,the obligationof the designatedUS agentfor serviceof processfor the abovereferenceFCC ID. The USA MEIHUATRADINGINC for Serviceof Processis awareof and agreesto complywith the requirementsoutlinedin the FCC EquipmentAuthorizationProgram,Reportand OrderFCC 22-84,and clause§ 2.911. The Applicantis awareof and agreesto complywith the requirementsoutlinedin the FCC EquipmentAuthorizationProgram,Reportand OrderFCC 22-84,and clause§ 2.911. This Agreementis valid for permanment. Date: 16 /05 /202 4 Applicant’s Name:JieWangUS Agent’s Name:Harley Quinn Title: ManagerTitle:Manager SignatureSignature

Covered Equipment Identification Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows: We, applicant Company Name: HAINAN JIAMEIHUACHENG INFORMATION TECHNOLOGY CO., LTD Address: Room 2716, 27th Floor Block B, Huarun Dasha No.7, Mingzhu Road, Longhua District, Haikou, Hainan, China Phone: +86-19965020289 certify that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2024-05-16 Signature Date Printed Name of Signee / Title: Jie Wang / Manager Company: HAINAN JIAMEIHUACHENG INFORMATION TECHNOLOGY CO., LTD Address: Room 2716,27th Floor Block B, Huarun Dasha No.7, Mingzhu Road, Longhua District, Haikou, Hainan, China Phone: +86-19965020289 Fax: N/A Email: [email protected]

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2BFZ8-BMW2412 BMW2412, BMW2412, BMW2410, BMW2411, BMW2413, BMW2414, BKC2415, BKC2417, BKC2419, BKC2421 We, applicant Company Name: HAINAN JIAMEIHUACHENG INFORMATION TECHNOLOGY CO., LTD Address: Room 2716, 27th Floor Block B, Huarun Dasha No.7, Mingzhu Road, Longhua District, Haikou, Hainan, China Phone: +86-19965020289 certify that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2024-05-16 Signature Date Printed Name of Signee / Title: Jie Wang / Manager Company: HAINAN JIAMEIHUACHENG INFORMATION TECHNOLOGY CO., LTD Address: Room 2716,27th Floor Block B, Huarun Dasha No.7, Mingzhu Road, Longhua District, Haikou, Hainan, China Phone: +86-19965020289 Fax: N/A Email: [email protected]

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products: FCC ID Model name 2BFZ8-BMW2412 BMW2412, BMW2412, BMW2410, BMW2411, BMW2413, BMW2414, BKC2415, BKC2417, BKC2419, BKC2421 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics • the Parts Lists • the Tune Up Information The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2024-05-16 Signature Date Printed Name of Signee / Title: Jie Wang / Manager Company: HAINAN JIAMEIHUACHENG INFORMATION TECHNOLOGY CO., LTD Address: Room 2716,27th Floor Block B, Huarun Dasha No.7, Mingzhu Road, Longhua District, Haikou, Hainan, China Phone: +86-19965020289 Fax: N/A Email: [email protected]

HAINAN JIAMEIHUACHENG INFORMATION TECHNOLOGY CO., LTD Room 2716,27th Floor Block B,Huarun Dasha No.7,Mingzhu Road,Longhua District,Haikou, Hainan, China Date: May 16, 2024 FCC ID: 2BFZ8-BMW2412 Model Number: BMW2412, BMW2410, BMW2411, BMW2413, BMW2414, BKC2415, BKC2417, BKC2419, BKC2421 To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, HAINAN JIAMEIHUACHENG INFORMATION TECHNOLOGY CO., LTD hereby declare that our product (Wireless Mouse) Model Number: BMW2412, BMW2410, BMW2411, BMW2413, BMW2414, BKC2415, BKC2417, BKC2419, BKC2421 board, Schematic, Hardware version, Software version, structure and internal photos are same, named and appearance differently due to marketing purposes. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely, (Signed) Name / Title: Jie Wang / Manager Company: HAINAN JIAMEIHUACHENG INFORMATION TECHNOLOGY CO., LTD Address: Room 2716,27th Floor Block B, Huarun Dasha No.7, Mingzhu Road, Longhua District, Haikou, Hainan, China Phone: +86-19965020289 Fax Number: N/A E-Mail: [email protected]

FCCID:2BFZ8-BMW2412 FCCID:2BFZ8-BMW2412 FCCID:2BFZ8-BMW2412 FCCID:2BFZ8-BMW2412

FCCID:2BFZ8-BMW2412 Label Size:36.59mm*19.60mm

FCCID:2BFZ8-BMW2412 Ant FCCID:2BFZ8-BMW2412 FCCID:2BFZ8-BMW2412 FCCID:2BFZ8-BMW2412

RFExposureevaluation FCCID2BFZ8-BMW2412 ProductNameWirelessMouse Model/TypereferenceBMW2412 ExposurecategoryGeneralpopulation/uncontrolledenvironment EUTTypeProductionUnit DeviceTypePortableDevice 1.Reference ANSIC95.1–1999:IEEEStandardforSafetyLevelswithRespecttoHumanExposureto RadioFrequencyElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortable DevicesRFExposureProceduresandEquipmentAuthorizationPolicies. FCCCFR47parBMW24121.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1093:Radiofrequencyradiationexposureevaluation:portabledevices 2.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1Standalone SARtestexclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposure KDBprocedures,standalone1-gheadorbodyand10-gextremitySARevaluationforgeneral populationexposureconditions,bymeasurementornumericalsimulation,isnotrequired whenthecorrespondingSARTestExclusionThresholdcondition,listedbelow,issatisfied. Thesetestexclusionconditionsarebasedonsource-basedtime-averagedmaximum conductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-uptolerance, andtheminimumtestseparationdistancerequiredfortheexposureconditions.22The minimumtestseparationdistanceisdeterminedbythesmallestdistancefromtheantenna andradiatingstructuresoroutersurfaceofthedevice,accordingtothehostformfactor, exposureconditionsandplatformrequirements,toanypartofthebodyorextremityofauser orbystander(see5)ofsection4.1).ToqualifyforSARtestexclusion,thetestseparation distancesappliedmustbefullyexplainedandjustifiedbytheoperatingconfigurationsand exposureconditionsofthetransmitterandapplicablehostplatformrequirements,typicallyin theSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRF exposureKDBprocedures.WhennootherRFexposuretestingorreportingisrequired,a statementofjustificationandcompliancemustbeincludedintheequipmentapproval,inlieuof theSARreport,toqualifyfortheSARtestexclusion.Whenrequired,thedevicespecific conditionsdescribedintheotherpublishedRFexposureKDBproceduresmustbesatisfied beforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTTtwo-way radios,handsets,laptops&tabletsetc.23” [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where: •f(GHz)istheRFchanneltransmitfrequencyinGHz •PoweranddistanceareroundedtothenearestmWandmmbeforecalculation •Theresultisroundedtoonedecimalplaceforcomparison •3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50 mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto5)insection4.1isappliedto determineSARtestexclusion. Whenoneofthefollowingtestexclusionconditionsissatisfiedforallcombinationsof simultaneoustransmissionconfigurations,furtherequipmentapprovalisnotrequiredto incorporatetransmittermodulesinhostdevicesthatoperateinthemixedmobileandportable hostplatformexposureconditions.Thegranteeisresponsiblefordocumentingthisaccording toClassIpermissivechangerequirements.AntennasthatqualifyforstandaloneSARtest exclusionmustapplytheestimatedstandaloneSARtodeterminesimultaneoustransmission testexclusion. a)The[∑of(thehighestmeasuredorestimatedSARforeachstandaloneantenna configuration,adjustedformaximumtune-uptolerance)/1.6W/kg]+[∑ofMPEratios]is≤ 1.0. b)TheSARtopeaklocationseparationratiosofallsimultaneouslytransmittingantennapairs operatinginportabledeviceexposureconditionsareall≤0.04,andthe[∑ofMPEratios]is ≤1.0. 3.ConductedPeakOutputPower ModulationPacketTypeChannel PeakOutput Power (dBm) PeakOutput Power (mW) GFSK BLE1M 01.4351.39 190.8481.22 390.9271.24 BLE2M 01.5101.42 191.0021.26 391.0501.27 4.ManufacturingTolerance BLE BLE-1M ChannelChannel0Channel19Channel39 Target(dBm)1.01.01.0 Tolerance±(dB)1.01.01.0 BLE-2M ChannelChannel0Channel19Channel39 Target(dBm)1.01.01.0 Tolerance±(dB)1.01.01.0 2.4G: TXfrequencyrange:2476MHz(Worstresult) Devicecategory:Portabledevice(Distance:5mm)Max.FieldStrength:93.28dBuV/m@3m EIRP=E-104.7+20logD=93.28-104.7+20log3=-1.88dBm MaximumConductedOutputPower:-1.88dBm Tune-up:-1±1 5.EvaluationResult Band/Modef(GHz) Antenna Distance (mm) RFoutputpower SARTest Exclusion Threshold SARTest Exclusion dBmmW BLE2.48052 1.58 0.4992<3.0Yes Remark: 1.Outputpowerincludingtuneuptolerance; 2.Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmaccordingtof)in section4.1isappliedtodetermineSARtestexclusion. 6.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolled RFExposureandSARExclusionThresholdperKDB447498v06. ------Endofthereport------

Linear Antennaspecification ShLinearenzhenXichenTechnology 第 1 页 (1)InstallationmodeOnboardantenna (2)AntennatypeSerpentineantenna (3)Antennalength17.5mm (4)Antennawidth1.5mm (5)Frequency2.4G ElectricalSpecification (1)WorkingFrequencyRange2400~2500MHz (2)PeakGain2.95dBi (Typ.) (3)Impedance50Ohm (4)VSWR2.5(Max) (5)PolarizationLinear (6)AzimuthBeamwidthOmni-directional Applicant:HAINAN JIAMEIHUACHENG INFORMATION TECHNOLOGY CO., LTD Address:Room 2716,27th Floor Block B,Huarun Dasha No.7,Mingzhu Road,Longhua District,Haikou,Hainan,China Linear Antennaspecification ShLinearenzhenXichenTechnology 第 2 页 S11Figure RadiationFigure L The Environment of Antenna Radiation Pattem inear Antennaspecification ShLinearenzhenXichenTechnology 第 3 页 AntennaRadiationPattern ZXplaneZYplaneXYplane FrequencyMax Value AverageMax Value AverageMax Value Average [MHz][dBi][dBi][dBi][dBi][dBi][dBi] 24002.912.092.93-3.002.67-4.14 24502.832.132.78-3.122.81-4.13 25002.952.072.87-3.002.89-4.05 RadiationPatternXOZRadiationPatternYOZRadiationPatternXOY

ReportNo.: CISRR24041811101 AppendixA ReportNo.: CISRR24041811101 FCCID: 2BFZ8-BMW2412 ProductName: WirelessMouse ModelNo.:BMW2412 TestEngineer:LucasHuang Supervisedby:RoryHuang ReportNo.: CISRR24041811101 1)ConductedPeakOutputPower TestResult ModulationPacketTypeChannel PeakOutput Power (dBm) PeakOutput Power (mW) Limit (dBm) Result GFSK LE 01.4351.39 30 PASS 190.8481.22PASS 390.9271.24PASS 2LE 01.5101.42 30 PASS 191.0021.26PASS 391.0501.27PASS ReportNo.: CISRR24041811101 2)99%Bandwidth TestResult ModeChannel99%BW(MHz) LE01.0450 LE191.0530 LE391.0480 2LE02.0440 2LE192.0600 2LE392.0520 TestGraphs LE_Channel02LE_Channel0 LE_Channel192LE_Channel19 ReportNo.: CISRR24041811101 LE_Channel392LE_Channel39 ReportNo.: CISRR24041811101 3)6dBBandwidth TestResult ModeChannel CenterFrequency (MHz) 6dBBandwidth (MHz) Limit (MHz) Result LE 024020.6800 0.5 PASS 1924400.6600PASS 3924800.6700PASS 2LE 024021.160PASS 1924401.160PASS 3924801.140PASS TestGraphs LE_Channel02LE_Channel0 LE_Channel192LE_Channel19 ReportNo.: CISRR24041811101 LE_Channel392LE_Channel39 ReportNo.: CISRR24041811101 4)ConductedOutOfBandEmission TestResult ModeChannel OOBEmission Frequency (MHz) OOBEmission Level (dBm) Limit (dBm) OverLimit (dB) Result LE 0 2400.00-46.959-18.74-28.219PASS 7205.13-42.271-18.74-23.531PASS 199760.39-41.347-19.33-22.017PASS 39 2483.50-53.349-19.23-34.119PASS 9920.20-40.702-19.23-21.472PASS 2LE 0 2400.00-33.440-18.92-14.520PASS 7204.30-39.446-18.92-20.526PASS 199760.39-41.590-19.47-22.120PASS 39 2483.50-53.024-19.38-33.644PASS 9920.20-40.697-19.38-21.317PASS TestGraphs In-BandReferenceLevel LE_Channel0 In-BandReferenceLevel 2LE_Channel0 ReportNo.: CISRR24041811101 OutOfBandEmission LE_Channel0 OutOfBandEmission 2LE_Channel0 SpuriousEmission LE_Channel0 SpuriousEmission 2LE_Channel0 In-BandReferenceLevel LE_Channel19 In-BandReferenceLevel 2LE_Channel19 ReportNo.: CISRR24041811101 SpuriousEmissions LE_Channel19 SpuriousEmissions 2LE_Channel19 In-BandReferenceLevel LE_Channel39 In-BandReferenceLevel 2LE_Channel39 OutOfBandEmission LE_Channel39 OutOfBandEmission 2LE_Channel39 ReportNo.: CISRR24041811101 SpuriousEmission LE_Channel39 SpuriousEmission 2LE_Channel39 ReportNo.: CISRR24041811101 5)DutyCycle TestResult ModeChannelOnTime(ms)Period(ms)DutyCycle(%) DutyCycle (linear) DutyCycle Factor(dB) 1/T LE 02.1332.49985.370.85370.68690.47 192.1332.49985.370.85370.68690.47 392.1332.49985.370.85370.68690.47 2LE 01.0812.49943.270.43273.63810.93 191.0812.49943.270.43273.63810.93 391.0812.49943.270.43273.63810.93 TestGraphs LE ReportNo.: CISRR24041811101 LE LE ReportNo.: CISRR24041811101 2LE 2LE ReportNo.: CISRR24041811101 2LE ReportNo.: CISRR24041811101 6)PowerSpectralDensity TestResult ModeChannelPSD(dBm/3kHz)Limit(dBm/3kHz)Result LE0-14.9358PASS LE19-15.5768PASS LE39-15.5158PASS 2LE0-16.5538PASS 2LE19-17.7428PASS 2LE39-18.4178PASS TestGraphs LE_Channel02LE_Channel0 LE_Channel192LE_Channel19 ReportNo.: CISRR24041811101 LE_Channel392LE_Channel39

ReportNo.: CISRR24041811101 Page:1of35 TESTREPORT ReportNo.:CISRR24041811101 ProjectNo.CISR240418111 FCCID2BFZ8-BMW2412 Applicant:HAINANJIAMEIHUACHENGINFORMATIONTECHNOLOGYCO.,LTD Address:Room2716,27thFloorBlockB,HuarunDashaNo.7,MingzhuRoad,Longhua District,Haikou,Hainan,China ManufacturerHAINANJIAMEIHUACHENGINFORMATIONTECHNOLOGYCO.,LTD AddressRoom2716,27thFloorBlockB,HuarunDashaNo.7,MingzhuRoad,Longhua District,Haikou,Hainan,China ProductName:WirelessMouse TradeMark:-- Model/Typereference:BMW2412 ListedModel(s):BMW2410,BMW2411,BMW2413,BMW2414,BKC2415,BKC2417, BKC2419,BKC2421 Standard:Part15SubpartCSection15.247 Testdate:April18,2024~April25,2024 IssuedateApril26,2024 Testresult:Complied Preparedby:RoryHuangApprovedby:GenryLong Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. ReportNo.: CISRR24041811101 Page:2of35 Contents 1.REPORTVERSION.........................................................................................................................................3 2.SUMMARYOFTESTRESULT.......................................................................................................................4 3.SUMMARY.....................................................................................................................................................5 3.1.ProductDescription....................................................................................................................................5 3.2.RadioSpecificationDescription................................................................................................................5 3.3.ModificationofEUT.....................................................................................................................................6 3.4.TestingSite...................................................................................................................................................6 3.5.FieldStrengthCalculation..........................................................................................................................6 3.6.DISTURBANCECalculation........................................................................................................................6 4.TESTCONFIGURATION.............................................................................................................................7 4.1.Testfrequencylist.......................................................................................................................................7 4.2.Testmode.....................................................................................................................................................7 4.3.Supportunitusedintestconfigurationandsystem...............................................................................7 4.4.Testsampleinformation.............................................................................................................................7 4.5.Testingenvironmentalcondition...............................................................................................................8 4.6.Statementofthemeasurementuncertainty.............................................................................................8 4.7.EquipmentUsedduringtheTest...............................................................................................................9 5.TESTCONDITIONSANDRESULTS.....................................................................................................10 5.1.AntennaRequirement...............................................................................................................................10 5.2.ACConductedEmission...........................................................................................................................11 5.3.PeakOutputPower....................................................................................................................................14 5.4.6dBBandwidth..........................................................................................................................................15 5.5.99%OccupiedBandwidth.........................................................................................................................16 5.6.Powerspectraldensity..............................................................................................................................17 5.7.ConductedBandedgeandSpuriousEmission.....................................................................................18 5.8.RadiatedBandedgeEmission.................................................................................................................19 5.9.RadiatedSpuriousEmission....................................................................................................................21 6.TESTSETUPPHOTOS............................................................................................................................26 7.EXTERNALANDINTERNALPHOTOSOFTHEEUT........................................................................28 7.1Externalphotos...........................................................................................................................................28 7.2Internalphotos............................................................................................................................................32 ReportNo.: CISRR24041811101 Page:3of35 1.REPORTVERSION VersionNo.IssuedateDescription 00April26,2024Original ReportNo.: CISRR24041811101 Page:4of35 2.SUMMARYOFTESTRESULT Report clause TestItemStandardRequirementResult 5.1AntennaRequirement15.203/15.247(c)PASS 5.2ACConductedEmission15.207PASS 5.3PeakOutputPower15.247(b)(1)PASS 5.46dBBandwidth15.247(a)(2)PASS 5.599%OccupiedBandwidth-PASS *1 5.6Powerspectraldensity15.247(e)PASS 5.7ConductedBandEdgeandSpuriousEmission15.2…

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FCCID:2BFZ8-BMW2412 RadiatedEmission Below1GHz: Above1GHz: FCCID:2BFZ8-BMW2412 ACConductedEmission