2BN92-Y30Ahelmet headset

ShenzhenFengkuTechnologyCo.,Ltd 4rdFloor,BuildingB,RunchangyuanIndustrialZone,BantianStreet,LonggangDistrict,Shenzhen,China 1|Page AttestationStatements To:FederalCommunicationsCommissionDate:Dec.1,25 7435OaklandMillsRoad, Columbia,MD21046,USA Subject:AttestationofCompliancewithFCCCoveredListSoftwareRequirements FCCID:2BN92-Y30A ProductName:helmetheadset Thisletterservesasanattestationthattheequipmentidentifiedaboveisnot(selectone)"covered"software asdefinedundertheFederalCommunicationsCommission(FCC)CoveredListrequirements,asoutlined inFCC22-84andKDB986446. 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, PrintedName:FaweiGao Title:generalmanager Address:4rdFloor,BuildingB,RunchangyuanIndustrialZone,BantianStreet,LonggangDistrict,Shenzhen, China Tel.:13138873880 Email:[email protected] ShenzhenFengkuTechnologyCo.,Ltd 4rdFloor,BuildingB,RunchangyuanIndustrialZone,BantianStreet,LonggangDistrict,Shenzhen,China 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

ShenzhenFengkuTechnologyCo.,Ltd 4rdFloor,BuildingB,RunchangyuanIndustrialZone,BantianStreet,LonggangDistrict,Shenzhen, China AttestationStatements NotCoveredEntityApplicant&NotCoveredEquipment To:FederalCommunicationsCommissionDate:12/1/2025 7435OaklandMillsRoad, Columbia,MD21046,USA Ref:InformationRequiredbySection2.911(d)(5)(i)&(ii) FCCID:2BN92-Y30A ShenzhenFengkuTechnologyCo.,Ltdcertifiesthat,asofthedateofthefilingoftheapplication,the applicantisnotidentifiedontheCoveredList,establishedpursuantto§1.50002ofreferencechapter, asanentityproducing“covered”communicationequipment.Theequipmentforwhichauthorizationis soughtisnot“covered”telecommunicationsequipmentandvideosurveillanceequipmentproducedby entitiesidentifiedontheCommission’sCoveredListthatprohibitedfromreceivinganequipment authorizationpursuanttosection§2.903oftheFCCrules. Sincerelyyours, PrintedName:FaweiGao Title:generalmanager Address:4rdFloor,BuildingB,RunchangyuanIndustrialZone,BantianStreet,LonggangDistrict,Shenzhen, China Tel.:13138873880 Email:[email protected]

ShenzhenFengkuTechnologyCo.,Ltd 2.911(d)(7)USAAgentv1.5 Section2.911(d)(7)USAAgentforServiceofProcess Companyname:ShenzhenFengkuTechnologyCo.,Ltd Address:4rdFloor,BuildingB,RunchangyuanIndustrialZone,BantianStreet, LonggangDistrict,Shenzhen,China FCCID:2BN92-Y30A 2.911(d)(7)USADesignatedAgentforServiceofProcess We,[ShenzhenFengkuTechnologyCo.,Ltd]designate[LinkwldLLC] NOTE1 forthe purposeofacceptingserviceofprocessonbehalfoftheapplicant. Applicantconsent:Weacknowledgeourconsenttoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipment,andatthephysicalU.S. addressandemailaddressofthedesignatedagentandacknowledgeour acceptanceofourobligationtomaintainanagentforserviceofprocessintheUnited Statesfornolessthanoneyearaftereitherwethegranteehavepermanently terminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S., orattheconclusionofanyCommission-relatedadministrativeorjudicialproceeding involvingtheequipment,whicheverislater. Agentobligation:Weacknowledgeourobligationtoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipmentatourphysicalU.S. addressandemailaddressfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipment withintheU.S.,orattheconclusionofanyCommission-relatedadministrativeor judicialproceedinginvolvingtheequipment,whicheverislater. ShenzhenFengkuTechnologyCo.,Ltd 2.911(d)(7)USAAgentv1.5 USAAgentApplicant Companyname:LinkwldLLCCompanyname:ShenzhenFengku TechnologyCo.,Ltd USAAddress:7595TechnologyWaySte 100,Denver,CO80237,US Address:4rdFloor,BuildingB, RunchangyuanIndustrialZone,Bantian Street,LonggangDistrict,Shenzhen,China FRNNumber:0033625682GranteeFRNNumber:0036804920 ContactName:TimothyZhu FCCGranteeCode:2BN92 TelephoneNo:(747)717-2691ContactName:FaweiGao Email:[email protected] TelephoneNo:13138873880 Email:[email protected] Signature: Title:Manager Signature: Title:generalmanager Date:2025-12-01Date:2025-12-01 NOTE1:AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforservice ofprocess. Reference;FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

ShenzhenFengkuTechnologyCo.,Ltd 4rdFloor,BuildingB,RunchangyuanIndustrialZone,BantianStreet,LonggangDistrict, Shenzhen,China 12/1/2025 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:ConfidentialityRequestfor:FCCID:2BN92-Y30A 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 InternalPhotos  ExternalPhotos TestSetupPhotos Sincerely, Title:generalmanager Address:4rdFloor,BuildingB,RunchangyuanIndustrialZone,BantianStreet,LonggangDistrict, Shenzhen,China Tel.:13138873880 Email:[email protected]

ShenzhenFengkuTechnologyCo.,Ltd 4rdFloor,BuildingB,RunchangyuanIndustrialZone,BantianStreet,LonggangDistrict, Shenzhen,China 2025/12/1 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:AgentAuthorizationforFCCID:2BN92-Y30A I,theundersigned,herebyauthorize(ShenzhenAnbotekComplianceLaboratoryLimited.)toactonour behalfinallmattersrelatingtothisapplicationforequipmentcertification. Anyactcarriedoutby(ShenzhenAnbotekComplianceLaboratoryLimited.)shallhavethesameeffectas ourownandIacknowledgethatallresponsibilityforcomplyingwiththetermsandconditionsof certification,asspecifiedbyDERYCOMCERTIFICATIONSERVICES,INC.,stillresideswith(Shenzhen FengkuTechnologyCo.,Ltd). WecertifythatwearenotsubjecttoadenialoffederalbenefitsthatincludesFCCbenefitspursuantto Section5301oftheAnti-DrugAbuseActof1988,21U.S.C.§862,andthatnopartytotheapplication,as definedin47CFR§1.2002(b),issubjecttoadenialoffederalbenefitsthatincludesFCCbenefits pursuanttothatsection. Sincerely, PrintedName:FaweiGao Title:generalmanager Tel.:13138873880 Fax:N/A Email:[email protected]

LabelLocationOnEUT Confirmtheuseofrealappearancephotosasreferences Label ProductName:helmetheadset ModelNo.:Y30A FCCID:2BN92-Y30A

RFEXPOSUREEVALUATION FCCID:2BN92-Y30A AccordingtoKDB447498D01MobileandPortableDevicesRFExposureProcedures andEquipmentAuthorizationPoliciesv06. AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeusedto evaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF)Radiationas specifiedin§1.1307(b): RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,using measurementsorcomputersimulation.WhenroutineSARevaluationisnotrequired, portabletransmitterswithoutputpowergreaterthantheapplicablelowthresholdrequire SARevaluationtoqualifyforTCBapproval. Channel (MHz) Maximum output power (dBm) Tuneup tolerance (dBm) MaxTuneUp Power(dBm) Distance (mm) Calculation results Limit Operating Mode 24022.292.29±13.29050.6613 GFSK24411.721.72 ±1 2.72050.5853 24801.061.06±12.06050.5063 24023.103.10±14.10050.7973 π/4-DQPSK24412.542.54 ±1 3.54050.7063 24801.891.89±12.89050.6133 24023.573.57±14.57050.8883 8DPSK24412.962.96 ±1 3.96050.7783 24802.362.36±13.36050.6833 Result:NoStandaloneSARtestisrequired.

ReportNo.:1819C50111712501 Page 1 of 55 AppendixTestData ReportNo.:1819C50111712501TestSampleNo.:1-2-2 StartTestDate: 2025-10-15 FinishTestDate:2025-10-15 TestEngineer:Auditor: Temperature:26.6°CRelativeHumidity:45% Pressure:101kPa AppendixA:20dBBandwidth TestResult Test Mode Antenna Frequency [MHz] 20db EBW[MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict DH5Ant124020.9572401.5862402.543------ DH5Ant124410.9602440.5832441.543------ DH5Ant124800.9572479.5892480.546------ 2DH5Ant124021.3652401.3702402.735------ 2DH5Ant124411.2902440.4182441.708------ 2DH5Ant124801.3472479.3852480.732------ 3DH5Ant124021.2782401.4212402.699------ 3DH5Ant124411.3202440.4002441.720------ 3DH5Ant124801.3082479.4032480.711------ ReportNo.:1819C50111712501 Page 2 of 55 TestGraphs DH5-Ant1-2402 DH5-Ant1-2441 ReportNo.:1819C50111712501 Page 3 of 55 DH5-Ant1-2480 2DH5-Ant1-2402 ReportNo.:1819C50111712501 Page 4 of 55 2DH5-Ant1-2441 2DH5-Ant1-2480 ReportNo.:1819C50111712501 Page 5 of 55 3DH5-Ant1-2402 3DH5-Ant1-2441 ReportNo.:1819C50111712501 Page 6 of 55 3DH5-Ant1-2480 ReportNo.:1819C50111712501 Page 7 of 55 AppendixB:99%OccupiedBandwidth TestResult Test Mode Antenna Frequency [MHz] OCB[MHz]FL[MHz]FH[MHz]Limit[MHz]Verdict DH5Ant124020.874952401.61332402.4883------ DH5Ant124410.864482440.61652441.4810------ DH5Ant124800.885192479.61312480.4983------ 2DH5Ant124021.18012401.46242402.6425------ 2DH5Ant124411.19592440.46212441.6580------ 2DH5Ant124801.21852479.44922480.6677------ 3DH5Ant124021.19972401.45102402.6507------ 3DH5Ant124411.19542440.45392441.6493------ 3DH5Ant124801.19502479.45452480.6495------ ReportNo.:1819C50111712501 Page 8 of 55 TestGraphs DH5-Ant1-2402 DH5-Ant1-2441 ReportNo.:1819C50111712501 Page 9 of 55 DH5-Ant1-2480 2DH5-Ant1-2402 ReportNo.:1819C50111712501 Page 10 of 55 2DH5-Ant1-2441 2DH5-Ant1-2480 ReportNo.:1819C50111712501 Page 11 of 55 3DH5-Ant1-2402 3DH5-Ant1-2441 ReportNo.:1819C50111712501 Page 12 of 55 3DH5-Ant1-2480 ReportNo.:1819C50111712501 Page 13 of 55 AppendixC:MaximumConductedOutputPower TestResultPeak Test Mode AntennaFrequency[MHz] ConductedPeak Power[dBm] Conducted Limit[dBm] Verdict DH5Ant124022.29≤20.97PASS DH5Ant124411.72≤20.97PASS DH5Ant124801.06≤20.97PASS 2DH5Ant124023.10≤20.97PASS 2DH5Ant124412.54≤20.97PASS 2DH5Ant124801.89≤20.97PASS 3DH5Ant124023.57≤20.97PASS 3DH5Ant124412.96≤20.97PASS 3DH5Ant124802.36≤20.97PASS TestGraphs DH5-Ant1-2402-PASS ReportNo.:1819C50111712501 Page 14 of 55 DH5-Ant1-2441-PASS DH5-Ant1-2480-PASS ReportNo.:1819C50111712501 Page 15 of 55 2DH5-Ant1-2402-PASS 2DH5-Ant1-2441-PASS ReportNo.:1819C50111712501 Page 16 of 55 2DH5-Ant1-2480-PASS 3DH5-Ant1-2402-PASS ReportNo.:1819C50111712501 Page 17 of 55 3DH5-Ant1-2441-PASS 3DH5-Ant1-2480-PASS ReportNo.:1819C50111712501 Page 18 of 55 AppendixD:Carrierfrequencyseparation TestResult TestModeAntenna Frequency [MHz] Result [MHz] Limit[MHz]Verdict DH5Ant1Hop1.158≥0.960PASS 2DH5Ant1Hop0.982≥0.910PASS 3DH5Ant1Hop1.13≥0.880PASS ReportNo.:1819C50111712501 Page 19 of 55 TestGraphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS ReportNo.:1819C50111712501 Page 20 of 55 3DH5-Ant1-Hop-PASS ReportNo.:1819C50111712501 Page 21 of 55 AppendixE:DwellTime TestResult Test Mode Antenna Frequency [MHz] BurstWidth [ms] TotalHops [Num] Result [s] Limit [s] Verdict DH5Ant1Hop2.885980.283≤0.4PASS 2DH5Ant1Hop2.8911000.289≤0.4PASS 3DH5Ant1Hop2.8921090.315≤0.4PASS ReportNo.:1819C50111712501 Page 22 of 55 TestGraphs DH5-Ant1-Hop-PASS ReportNo.:1819C50111712501 Page 23 of 55 2DH5-Ant1-Hop-PASS ReportNo.:1819C50111712501 Page 24 of 55 3DH5-Ant1-Hop-PASS ReportNo.:1819C50111712501 Page 25 of 55 AppendixF:NumberofHoppingChannel TestResult TestModeAntenna Frequency [MHz] Result [Num] Limit [Num] Verdict DH5Ant1Hop79≥15PASS 2DH5Ant1Hop79≥15PASS 3DH5Ant1Hop79≥15PASS ReportNo.:1819C50111712501 Page 26 of 55 TestGraphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS ReportNo.:1819C50111712501 Page 27 of 55 3DH5-Ant1-Hop-PASS ReportNo.:1819C50111712501 Page 28 of 55 AppendixG:ConductedBandedge TestResult Test Mode Antenna Ch. Name Frequency [MHz] Ref.Level [dBm] Result [dBm] Limit [dBm] Verdict DH5Ant1Low24022.03-49.62≤-17.97PASS DH5Ant1High24800.85-51.38≤-19.15PASS DH5Ant1LowHop_24021.53-51.88≤-18.48PASS DH5Ant1HighHop_24800.89-50.81≤-19.11PASS 2DH5Ant1Low24022.15-49.79≤-17.85PASS 2DH5Ant1High24800.90-52.84≤-19.1PASS 2DH5Ant1LowHop_2402-1.64-51.54≤-21.64PASS 2DH5Ant1HighHop_2480-0.02-52.57≤-20.02PASS 3DH5Ant1Low24022.18-52.02≤-17.82PASS 3DH5Ant1High24800.87-52.55≤-19.13PASS 3DH5Ant1LowHop_2402-0.53-53.93≤-20.53PASS 3DH5Ant1HighHop_2480-1.92-53.35≤-21.92PASS Remark:Regardingthespuriousemissionsfrom30MHzto26.5GHz,thecablelosshavebeensetinthe 'offset'oftheSpectrumAnalyzerduringthetest. ReportNo.:1819C50111712501 Page 29 of 55 TestGraphs DH5-Ant1-2402-PASS DH5-Ant1-2480-PASS ReportNo.:1819C50111712501 Page 30 of 55 DH5-Ant1-Hop_2402-PASS DH5-Ant1-Hop_2480-PASS ReportNo.:1819C50111712501 Page 31 of 55 2DH5-Ant1-2402-PASS 2DH5-Ant1-2480-PASS ReportNo.:1819C50111712501 Page 32 of 55 2DH5-Ant1-Hop_2402-PASS 2DH5-Ant1-Hop_2480-PASS ReportNo.:1819C50111712501 Page 33 of 55 3DH5-Ant1-2402-PASS 3DH5-Ant1-2480-PASS ReportNo.:1819C50111712501 Page 34 of 55 3DH5-Ant1-Hop_2402-PASS 3DH5-Ant1-Hop_2480-PASS ReportNo.:1819C50111712501 Page 35 of 55 AppendixH:ConductedSpuriousEmission TestResult Test Mode AntennaFrequency[MHz] Freq.Range [MHz] Ref.Level [dBm] Result [dBm] Limit [dBm] Verdict DH5Ant124020~Reference1.381.38---PASS DH5Ant1240230~10001.38-66.78≤-18.62PASS DH5Ant124021000~265001.38-40.82≤-18.62PASS DH5Ant124410~Reference1.271.27---PASS DH5Ant1244130~10001.27-67.51≤-18.73PASS DH5Ant124411000~265001.27-40.4≤-18.73PASS DH5Ant124800~Reference0.110.11---PASS DH5Ant1248030~10000.11-68.11≤-19.89PASS DH5Ant124801000~265000.11-40.6≤-19.89PASS 2DH5Ant124020~Reference-1.83-1.83---PASS 2DH5Ant1240230~1000-1.83-69.02≤-21.83PASS 2DH5Ant124021000~26500-1.83-40.86≤-21.83PASS 2DH5Ant124410~Reference0.770.77---PASS 2DH5Ant1244130~10000.77-68.8≤-19.23PASS 2DH5Ant124411000~265000.77-40.31≤-19.23PASS 2DH5Ant12…

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Page 1 of 40 FCC Test Report Report No.:1819C50111712501 Applicant:Shenzhen Fengku Technology Co., Ltd Address: 4rd Floor, Building B, Runchangyuan Industrial Zone, Bantian Street, Longgang District, Shenzhen, China Product Name:helmet headset Report Date:2025-12-01 Shenzhen Anbotek Compliance Laboratory Limited #检测章# #资质章# Report No.:1819C50111712501Page 2 of 40 FCC ID: 2BN92-Y30A Contents 1. General Information ...............................................................................................................................6 1.1. Client Information ........................................................................................................................6 1.2. Description of Device (EUT) ........................................................................................................6 1.3. Auxiliary Equipment Used During Test........................................................................................7 1.4. Operation channel list..................................................................................................................7 1.5. Description of Test Modes...........................................................................................................8 1.6. Measurement Uncertainty ...........................................................................................................8 1.7. Additional Instructions .................................................................................................................9 1.8. Test Summary .............................................................................................................................9 1.9. Description of Test Facility ........................................................................................................10 1.10. Disclaimer................................................................................................................................10 1.11. Test Equipment List.................................................................................................................11 2. Antenna requirement ...........................................................................................................................13 2.1. Conclusion.................................................................................................................................13 3. Conducted Emission at AC power line ................................................................................................14 3.1. EUT Operation ..........................................................................................................................14 3.2. Test Setup .................................................................................................................................14 3.3. Test Data ...................................................................................................................................15 4. 20dB Bandwidth ..................................................................................................................................17 4.1. EUT Operation ..........................................................................................................................18 4.2. Test Setup .................................................................................................................................18 4.3. Test Data ...................................................................................................................................18 5. Maximum Conducted Output Power....................................................................................................19 5.1. EUT Operation ..........................................................................................................................19 5.2. Test Setup .................................................................................................................................20 5.3. Test Data ...................................................................................................................................20 6. Channel Separation .............................................................................................................................21 6.1. EUT Operation ..........................................................................................................................21 6.2. Test Setup .................................................................................................................................21 6.3. Test Data ...................................................................................................................................21 7. Number of Hopping Frequencies.........................................................................................................22 7.1. EUT Operation ..........................................................................................................................22 7.2. Test Setup .................................................................................................................................22 7.3. Test Data ...................................................................................................................................22 8. Dwell Time ...........................................................................................................................................23 8.1. EUT Operation ..........................................................................................................................24 8.2. Test Setup .................................................................................................................................24 8.3. Test Data ...................................................................................................................................24 9. Emissions in non-restricted frequency bands ........................................…

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Summary AntennaSpecification ITEM PCBAntenna ModelName Y30A-2.4GANT Center Frequency HorizontalVertical 2400MHz2450MHz2500MHz2400MHz2450MHz2500MHz -8.46-8.46-10.82-9.06-9.7-10.58 MAX.Gain-8.46dBi PolarizationHorizontalandVertical AzimuthBeam Pattern Omni-directional Impedance50Ohm AntennaLength38.20mm Manufacture ShenzhenFengkuTechnologyCo.,Ltd AntennaPhoto&Length(mm) Horizontal:2400MHz2450MHz2500MHz Power(dBm) Max:0Min:-40Scale:5/div Frequency (MHz) Gain(dB) MaxMinAvg 2400-8.46-30.0815-8.48713 2450-8.46-38.5605-7.88012 2500-10.82-24.0318-6.79139 Vertical:2400MHz2450MHz2500MHz Power(dBm) Max:0Min:-30Scale:5/div Frequency (MHz) Gain(dB) MaxMinAvg 2400-9.06-24.1420-13.0295 2450-9.7-26.5836-10.6700 2500-10.58-30.4301-9.70536