2BFL4-JYD-BT90BWireless Earphone

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 undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority 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 interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment 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 different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. JYD-BT90B Wireless Earphone

LocalRepresentativeLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(7),oftheCommission’sRules(47C.F.R.)weattestasfollowsfor theproductlistedbelow: FCCIDModelname 2BFL4-JYD-BT90BJYD-BT90B Weherebyacknowledgeasfollows: i.bothsigneesconfirmthatthepointofcontactacceptsresponsibilitytoactasaUS- AmericanRepresentativeonbehalfoftheapplicant ii.thepointofcontactprovidesthephysicalU.S.addressandemailaslistedbelow iii.bothpartiesmaintaintherequirementsofthisagreementwithoutexpirationdate US-AmericanPointofContactApplicant/ApprovalHolder SignatureSignature CompanyName:LOBOSIOWAINCShenzhenJiayoudaElectronics Co.,Ltd FRN:00364139610035190701 ContactName:HarleyLiJinpingHe Address:4623BittercreekDrColorado SpringsCO80922US 711,BuildingC,LangkouBaoke IndustrialZone,Longhua District,ShenzhenCity,China Phone:+18188180538N/A Email:[email protected]@qq.com

CoveredEquipmentCertificationAttestationLetter 2026.05.13 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA ATTN.:ReviewingEngineer FCCID:2BFL4-JYD-BT90B ShenzhenJiayoudaElectronicsCo.,Ltd(“theapplicant”)certifiesthattheequipmentfor whichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivingan equipmentauthorizationpursuanttosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. ShenzhenJiayoudaElectronicsCo.,Ltd(“theapplicant”)certifiesthat,asofthedateof thefilingoftheapplication,theapplicantisnotidentifiedontheCoveredListasanentity producing“covered”equipment. ShenzhenJiayoudaElectronicsCo.,Ltd(“theapplicant”)certifiesthattheequipmentfor whichauthorizationissoughtdoesnotincludecybersecurityoranti-virussoftware producedorprovidedbyKasperskyLab,Inc.oranyofitssuccessorsandassignees, includingequipmentwithintegratedKasperskyLab,Inc.(oranyofitssuccessorsand assignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446 D01 CoveredEquipmentGuidancesectionB(2a). Signed: Printedname:JinpingHe Title:Manager CompanyName:ShenzhenJiayoudaElectronicsCo.,Ltd Date:2026.05.13

2026.05.13 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeShenzhenBangceTestingTechnologyCo.,Ltd.toacton ourbehalfinallmattersrelatingtoapplicationforequipmentauthorization,includingthesigningofall documentsrelatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothedenialof benefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988,21 U.S.C.853(a). Sincerely, Name:JinpingHe Title:Manager Company:ShenzhenJiayoudaElectronicsCo.,Ltd

2026.05.13 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2BFL4-JYD-BT90B ProductName:WirelessEarphone RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommission’srules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: (Listherethedocumentsforwhichyouareseekingconfidentiality–forexample...) Schematics Blockdiagram  Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. Name:JinpingHe Title:Manager Company:ShenzhenJiayoudaElectronicsCo.,Ltd

ReportNo.:CISRR26041435901 Page 91 of 96 9.EXTERNALANDINTERNALPHOTOS 9.1.ExternalPhotos ReportNo.:CISRR26041435901 Page 92 of 96 ReportNo.:CISRR26041435901 Page 93 of 96

Label Size:40mm*20mm Wireless Earphone Nodel No.:JYD-BT90B FCC ID:2BFL4-JYD-BT90B Label Location

ReportNo.:CISRR26041435901 Page 94 of 96 9.2.InternalPhotos ReportNo.:CISRR26041435901 Page 95 of 96 BT ANT0 BT ANT1 WIFI ANT2 ReportNo.:CISRR26041435901 Page 96 of 96 -----Endofthereport-----

ReportNo.:CISRR26041435904 Reporttemplateversion:CISE-TR-001-A0Page:1of5 TESTREPORT RFExposureEvaluation ReportNo.CISRR26041435904 ProjectNo.CISR260414359 FCCID2BFL4-JYD-BT90B ApplicantShenzhenJiayoudaElectronicsCo.,Ltd Address 711,BuildingC,LangkouBaokeIndustrialZone,Longhua District,Shenzhen City,China ManufacturerShenzhenJiayoudaElectronicsCo.,Ltd Address 711,BuildingC,LangkouBaokeIndustrialZone,Longhua District,Shenzhen City,China ProductNameWirelessEarphone Trademark- Model/TypereferenceJYD-BT90B ListedModel(s)- Standard 47CFRPart2.1093 DateofsamplereceiptApril16,2026 TestdateApril16,2026toMay8,2026 IssuedateMay8,2026 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangceTesting TechnologyCo.,Ltd. ReportNo.:CISRR26041435904 Reporttemplateversion:CISE-TR-001-A0Page:2of5 1.APPLICABLESTANDARD 47CFRPart2.1093:Radiofrequencyradiationexposureevaluation:portabledevices ANSIC95.1–3999:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. 47CFRPart1.1307:Actionsthatmayhaveasignificantenvironmentaleffect,forwhichEnvironmental Assessments(EAs)mustbeprepared. 2.REPORTVERSION VersionNo.IssuedateDescription 00May8,2026Original ReportNo.:CISRR26041435904 Reporttemplateversion:CISE-TR-001-A0Page:3of5 3.RADIOSPECIFICATIONDESCRIPTION Bluetooth Supportedtype:BREDRLE-1Mbps LE-2Mbps WIFI-2.4GHzBand Supportedtype:802.11b802.11g802.11n 802.11ax Note:PleaserefertoRFreportfordetailedtechnicalspecifications 4.SIMULTANEOUSTRANSMISSIONANALYSIS ThedeviceusetwowirelesstechnologiesforBluetoothandWIFI,cantransmitsimultaneously. ReportNo.:CISRR26041435904 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 RadiotypeAnt #1 Frequency (GHz) Maximum output power #2 (dBm) Maximum tune-up #3 power(dBm) Minimum distance (mm) Evaluated value LimitResult BT 02.4410.9615.000.39343.00PASS 12.4801.0725.000.49923.00PASS BLE 02.4020.2815.000.39023.00PASS 12.4400.4915.000.39333.00PASS 2.4GWIFI22.4625.7765.001.12603.00PASS Note #1:ThisvaluecomesfromtheRFtestreport. #2:ThisvaluecomesfromtheRFtestreport. #3:Thisvalueisdeclaredbytheapplicant. ReportNo.:CISRR26041435904 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,orportableRFsourcek eitherinthedeviceoratthetransmittersitefromanexistingevaluationatthelocationof exposure. ExposureLimit k =eitherthegeneralpopulation/uncontrolledmaximumpermissibleexposure (MPE)orspecicabsorptionrate(SAR)limitforeachxed,mobile,orportableRFsourcek, asapplicablefrom§1.1310ofthischapter. Result:Passed TestData TypeAnt Evaluated value Standalone Limit RaitoValue (Evaluatedvalue/ StandaloneLimit) Sum Simultaneous Limit Result BT 00.393430.1311 0.67281.00PASS 10.499230.1664 WIFI 21.126030.3753 --------EndofReport--------

ReportNo.:CISRR26041435901 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of87 TESTREPORT ReportNo.CISRR26041435901 ProjectNo.CISR260414359 FCCID2BFL4-JYD-BT90B ApplicantShenzhenJiayoudaElectronicsCo.,Ltd Address 711,BuildingC,LangkouBaokeIndustrialZone,Longhua District,Shenzhen City,China ManufacturerShenzhenJiayoudaElectronicsCo.,Ltd Address 711,BuildingC,LangkouBaokeIndustrialZone,Longhua District,Shenzhen City,China ProductNameWirelessEarphone Trademark- Model/TypereferenceJYD-BT90B ListedModel(s)- Standard 47CFRPart15.247 DateofsamplereceiptApril16,2026 TestdateApril16,2026toMay8,2026 IssuedateMay8,2026 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu ReportNo.:CISRR26041435901 Page 2 of 87 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.............................................................................................................................................11 6.1.EvaluationResults(Evaluation)...............................................................................................................11 6.1.1.AntennaRequirement.............................................................................................................................11 6.2.RadioSpectrumMatterTestResults(RF)...............................................................................................12 6.2.1.ConductedEmissionatACpowerline.................................................................................................12 6.2.2.20dBBandwidth......................................................................................................................................16 6.2.3.MaximumConductedOutputPower.....................................................................................................18 6.2.4.ChannelSeparation................................................................................................................................19 6.2.5.NumberofHoppingFrequencies..........................................................................................................21 6.2.6.DwellTime...............................................................................................................................................22 6.2.7.Conductedbandedgeandspuriousemission...................................................................................25 6.2.8.Radiatedbandedgeemission...............................................................................................................27 6.2.9.RadiatedSpuriousEmission(below1GHz).........................................................................................37 6.2.10.RadiatedSpuriousEmission(Above1GHz)......................................................................................43 7.APPENDIXREPORT......................................................................................................................................57 7.1.ConductedOutputPower.........................................................................................................................57 7.2.20dBBandwidth.........................................................................................................................................61 7.3.NumberOfHoppingChannel...................................................................................................................65 7.4.CarrierFrequenciesSeparation.......................................................................................................…

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ReportNo.:CISRR26041435901 Page 66 of 87 8DPSK8DPSK Ant1： TestResult ModulationPacket NumberofHopping Channel LimitResult GFSKDH57915PASS π/4DQPSK2-DH57915PASS 8DPSK3-DH57915PASS TestGraphs LowEndSpectrumChannelHoppingPlot GFSK HighEndSpectrumChannelHoppingPlot GFSK LowEndSpectrumChannelHoppingPlot π/4DQPSK HighEndSpectrumChannelHoppingPlot π/4DQPSK ReportNo.:CISRR26041435901 Page 67 of 87 LowEndSpectrumChannelHoppingPlot 8DPSK HighEndSpectrumChannelHoppingPlot 8DPSK ReportNo.:CISRR26041435901 Page 68 of 87 7.4. CarrierFrequenciesSeparation Ant0： TestResult ModulationPacket LeftCenter frequency (MHz) RightCenter frequency (MHz) Hopping Frequency Separation (MHz) Minimum Limit(MHz) Result GFSKDH52439.97672440.97540.99870.92PASS π/4DQPSK2-DH52439.99832441.00211.00380.88PASS 8DPSK3-DH52440.16112441.15230.99120.86PASS TestGraphs GFSKπ/4DQPSK 8DPSK ReportNo.:CISRR26041435901 Page 69 of 87 Ant1： TestResult ModulationPacket LeftCenter frequency (MHz) RightCenter frequency (MHz) Hopping Frequency Separation (MHz) Minimum Limit(MHz) Result GFSKDH52439.74542440.82181.07640.95PASS π/4DQPSK2-DH52439.98662441.11451.12800.873PASS 8DPSK3-DH52439.89262440.92971.03710.867PASS TestGraphs GFSKπ/4DQPSK 8DPSK ReportNo.:CISRR26041435901 Page 70 of 87 7.5. DutyCycle Ant0: TestResult ModulationPacketsChannel OnTime (ms) Period (ms) Duty Cycle(%) Duty Cycle (linear) Duty Cycle Factor (dB) 1/T GFSKDH5 02.9043.74877.480.77481.10810.3444 392.9023.74877.430.77431.11090.3446 782.9043.74877.480.77481.10810.3444 π/4DQPSK2-DH5 02.9083.74877.590.77591.10190.3439 392.9103.74877.640.77641.09910.3436 782.9083.74877.590.77591.10190.3439 8DPSK3-DH5 02.9103.74877.640.77641.09910.3436 392.9123.74877.690.77691.09630.3434 782.9103.74877.640.77641.09910.3436 TestGraphs GFSK(DH5)_Channel0GFSK(DH5)_Channel39 GFSK(DH5)_Channel78π/4DQPSK(2-DH5)_Channel0 ReportNo.:CISRR26041435901 Page 71 of 87 π/4DQPSK(2-DH5)_Channel39π/4DQPSK(2-DH5)_Channel78 8DPSK(3-DH5)_Channel08DPSK(3-DH5)_Channel39 8DPSK(3-DH5)_Channel78 ReportNo.:CISRR26041435901 Page 72 of 87 Ant1： TestResult ModulationPacketsChannel OnTime (ms) Period (ms) Duty Cycle(%) Duty Cycle (linear) Duty Cycle Factor (dB) 1/T GFSKDH5 02.9043.74877.480.77481.10810.3444 392.9023.74877.430.77431.11090.3446 782.9023.74877.430.77431.11090.3446 π/4DQPSK2-DH5 02.9103.74877.640.77641.09910.3436 392.9103.74877.640.77641.09910.3436 782.9103.74877.640.77641.09910.3436 8DPSK3-DH5 02.9123.74877.690.77691.09630.3434 392.9103.74877.640.77641.09910.3436 782.9123.74877.690.77691.09630.3434 TestGraphs GFSK(DH5)_Channel0GFSK(DH5)_Channel39 GFSK(DH5)_Channel78π/4DQPSK(2-DH5)_Channel0 ReportNo.:CISRR26041435901 Page 73 of 87 π/4DQPSK(2-DH5)_Channel39π/4DQPSK(2-DH5)_Channel78 8DPSK(3-DH5)_Channel08DPSK(3-DH5)_Channel39 8DPSK(3-DH5)_Channel78 ReportNo.:CISRR26041435901 Page 74 of 87 7.6. DwellTime Ant0： TestResult ModulationPacketChannel Pulse Width(ms) Numberof Pulsesin 31.6 seconds DwellTime (ms) Limit(ms)Result GFSKDH5 Hopping 2.912116337.79 <400 PASS π/4DQPSK2-DH52.912101294.11PASS 8DPSK3-DH52.912108314.5PASS Note:Dwelltime=Pulsetime(ms)*NumberofPulsesin31.6seconds TestGraphs PulseWidth GFSK_DH5 NumberofPulsesin31.6seconds GFSK_DH5 PulseWidth π/4DQPSK_2-DH5 NumberofPulsesin31.6seconds π/4DQPSK_2-DH5 ReportNo.:CISRR26041435901 Page 75 of 87 PulseWidth 8DPSK_3-DH5 NumberofPulsesin31.6seconds 8DPSK_3-DH5 ReportNo.:CISRR26041435901 Page 76 of 87 Ant1： TestResult ModulationPacketChannel Pulse Width(ms) Numberof Pulsesin 31.6 seconds DwellTime (ms) Limit(ms)Result GFSKDH5 Hopping 2.896109315.66 <400 PASS π/4DQPSK2-DH52.912115334.88PASS 8DPSK3-DH52.91298285.38PASS Note:Dwelltime=Pulsetime(ms)*NumberofPulsesin31.6seconds TestGraphs PulseWidth GFSK_DH5 NumberofPulsesin31.6seconds GFSK_DH5 PulseWidth π/4DQPSK_2-DH5 NumberofPulsesin31.6seconds π/4DQPSK_2-DH5 ReportNo.:CISRR26041435901 Page 77 of 87 PulseWidth 8DPSK_3-DH5 NumberofPulsesin31.6seconds 8DPSK_3-DH5 ReportNo.:CISRR26041435901 Page 78 of 87 7.7. ConductedSpurious&BandEdgeEmission Ant0： TestResult Non-Hopping ModulationPacketChannel OOB Emission Frequency (MHz) OOB Emission Level (dBm) Limit (dBm) OverLimit (dB) Result GFSKDH5 0 2397.83-45.635-20.04-25.595PASS 2400.00-48.370-20.04-28.330PASS 4803.80-34.226-20.04-14.186PASS 394882.09-34.214-21.49-12.724PASS 78 2483.50-48.620-21.89-26.730PASS 4959.49-38.662-21.89-16.772PASS π/4DQPSK2-DH5 0 2399.00-47.090-23.1-23.989PASS 2400.00-48.500-23.1-25.400PASS 4803.80-38.991-23.1-15.891PASS 394882.09-35.673-21.48-14.193PASS 78 2483.50-49.380-21.91-27.470PASS 4960.33-38.822-21.91-16.912PASS 8DPSK3-DH5 0 2398.05-47.513-23.09-24.423PASS 2400.00-49.140-23.09-26.050PASS 4803.80-39.267-23.09-16.177PASS 394882.09-43.322-24.53-18.792PASS 78 2483.50-48.250-24.72-23.530PASS 4960.33-44.649-24.72-19.929PASS Note:inputcompensationcoeffcient(dB)=CableLoss(dB) Hopping ModulationPacketChannel OOB Emission Frequency (MHz) OOB Emission Level (dBm) Limit (dBm) OverLimit (dB) Result GFSKDH5 Hopping 2398.76-45.675-20.13-25.545PASS 2400.00-46.460-20.13-26.330PASS 2483.50-47.430-21.74-25.690PASS π/4DQPSK2-DH5 2396.37-45.794-20.09-25.704PASS 2400.00-47.820-20.09-27.730PASS 2483.50-46.960-22.08-24.880PASS 8DPSK3-DH5 2397.13-45.490-23.12-22.370PASS 2400.00-46.270-23.12-23.150PASS 2483.50-47.400-24.71-22.690PASS Note:inputcompensationcoeffcient(dB)=CableLoss(dB) TestGraphs ReportNo.:CISRR26041435901 Page 79 of 87 OutOfBandEmission GFSK_DH5_Channel0 OutOfBandEmission π/4DQPSK_2-DH5_Channel0 30.0MHz-25000.0MHz GFSK_DH5_Channel0 30.0MHz-25000.0MHz π/4DQPSK_2-DH5_Channel0 OutOfBandEmission GFSK_DH5_Channel39 OutOfBandEmission π/4DQPSK_2-DH5_Channel39 ReportNo.:CISRR26041435901 Page 80 of 87 30.0MHz-25000.0MHz GFSK_DH5_Channel39 30.0MHz-25000.0MHz π/4DQPSK_2-DH5_Channel39 OutOfBandEmission GFSK_DH5_Channel78 OutOfBandEmission π/4DQPSK_2-DH5_Channel78 30.0MHz-25000.0MHz GFSK_DH5_Channel78 30.0MHz-25000.0MHz π/4DQPSK_2-DH5_Channel78 ReportNo.:CISRR26041435901 Page 81 of 87 OutOfBandEmission 8DPSK_3-DH5_Channel0 30.0MHz-25000.0MHz 8DPSK_3-DH5_Channel0 O…

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深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：3.2 x 1.6 x 1.0(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF3216H3) Engineering Specification DOCUMENT YF3216H3X2G45 REV. NO. D PAGE 1 OF 12 3.2X1.6X1.0 (mm) WiFi/Bluetooth Ceramic Chip Antenna Engineering Specification 1. Product Number (1)Product Type Chip Antenna (2)Size Code 3.2x1.6x1.0mm (3)Type Code H3 (4)Packing Plastic Packaging (5)Frequency 2.45GHz YF 3216 H3 X 2G45 1 2 3 4 5 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：3.2 x 1.6 x 1.0(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF3216H3) Engineering Specification DOCUMENT YF3216H3X2G45 REV. NO. D PAGE 2 OF 12 2. Features *Stable and reliable in performances *Low temperature coefficient of frequency *Low profile, compact size *RoHS compliance *SMT processes compatible 3. Applications *Bluetooth earphone systems *Hand-held devices when WiFi /Bluetooth functions are needed, e.g., Smart phone. *IEEE802.11 b/g/n *ZigBee *Wireless PCMCIA cards or USB dongle 4. Description Yingfeng chip antenna series are specially designed for WiFi/Bluetooth applications. Based on yingfeng proprietary design and processes, this chip antenna has excellent stability and sensitivity to consistently provide high signal reception efficiency. 5. Electrical Specifications (80 x 40 mm 2 ground plane) 5-1. Electrical Table Characteristics Specifications Unit Outline Dimensions 3.2x1.6x1.0 mm Working Frequency 2400~2500 MHz VSWR 2 Max. Impedance 50  Polarization Linear Polarization Gain Peak 4(typical) dBi Efficiency 80 (typical) % 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：3.2 x 1.6 x 1.0(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF3216H3) Engineering Specification DOCUMENT YF3216H3X2G45 REV. NO. D PAGE 3 OF 12 5-2. Return Loss & VSWR Return Loss (S 11 ) VSWR(S 11 ) 6. Antenna Dimensions & Test Board (unit: mm) a. Antenna Dimensions b. Test Board with Antenna 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：3.2 x 1.6 x 1.0(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF3216H3) Engineering Specification DOCUMENT YF3216H3X2G45 REV. NO. D PAGE 4 OF 12 80 40 Unit: mm 7. Radiation Pattern (80 x 40 mm 2 ground plane) 7-1. 3D Gain Pattern @ 2442 MHz Z X Y 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：3.2 x 1.6 x 1.0(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF3216H3) Engineering Specification DOCUMENT YF3216H3X2G45 REV. NO. D PAGE 5 OF 12 7-2. 3D Efficiency Table Frequency( MHz) 2400 2410 2420 2430 2442 2450 2460 2470 2480 2490 2500 Efficiency (dB) -1.4 -1.0 -0.9 -0.7 -0.7 -0.8 -0.9 -1.1 -1.2 -1.3 -1.4 Efficiency (%) 72.8 73.7 74.3 74.4 75.5 75.0 74.0 73.6 73.1 72.6 71.5 Gain (dBi) 2.1 2.2 2.3 2.4 2.5 2.5 2.4 1.8 1.7 1.6 1.4 Y X Z Y X X Y Z 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：3.2 x 1.6 x 1.0(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF3216H3) Engineering Specification DOCUMENT YF3216H3X2G45 REV. NO. D PAGE 6 OF 12 7-3. 3D Efficiency vs. Frequency 8. Layout Guide a. Solder Land Pattern: Land pattern for soldering (gray marking areas) is as shown below. Depending on Customer’s requirement, matching circuit as shown below is also recommended. Efficiency vs. Frequency 50 60 70 80 90 100 24002410242024302442245024602470248024902500 Frequency(MHz) Efficiency(%) 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：3.2 x 1.6 x 1.0(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF3216H3) Engineering Specification DOCUMENT YF3216H3X2G45 REV. NO. D PAGE 7 OF 12 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：3.2 x 1.6 x 1.0(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF3216H3) Engineering Specification DOCUMENT YF3216H3X2G45 REV. NO. D PAGE 8 OF 12 9. Frequency tuning a. Chip antenna tuning scenario： b. Matching circuit：(Center frequency is about 2442 MHz @ 80 x 40 mm 2 ground plane) System Matching Circuit Component Location Description Vendor Toleranc e 1 1.2 pF* Murata (0402) ±0.1 pF 2 10PF* Murata(0402) ±0.5 PF 3 N/A* - - Fine tuning element 4 1.5 pF* Murata (0402) ±0.1 pF *Typical reference values which may need to be changed when circuit boards or part vendors are different. Matching circuit Feed 4. Fine tuning elemet 1 2 3 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：3.2 x 1.6 x 1.0(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF3216H3) Engineering Specification DOCUMENT YF3216H3X2G45 REV. NO. D PAGE 9 OF 12 c. Fine tuning element vs. Center frequency 10. Soldering Conditions a. Typical Soldering Profile for Lead-free Process Time 60-180s 60-150s 20- Pre- 150-200° 217°C 260° Temperature (°C) 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLOYCO.,LTD Prepared by : JIEXI Designed by : Jason Checked by : Jason Approved by：MR.FANG TITLE：3.2 x 1.6 x 1.0(mm) WiFi/Bluetooth Ceramic Chip Antenna (YF3216H3) Engineering Specification DOCUMENT YF3216H3X2G45 REV. NO. D PAGE 10 OF 12 11. Packing (1) Quantity/Reel: 3000 pcs/Reel: Packaging Information  Tape Specification: W Ao Bo Ko P F E D D1 Po P2 t 8.0 ±0.30 1.80 ±0.05 3.51 ±0.10 1.59 ±0.10 4.00 ±0.05 3.50 ±0.05 1.75 ±0.10 1.50 ±0.10 0.00 ±0.10 4.00 ±0.10 2.00 ±0.05 0.25 ±0.05  Reel Specification: (7’’, Φ180 mm) Tape Width(mm) A(mm) B(mm) C(mm) D(mm) Chip/Reel(pcs) 8 9.0±0.5 60±2 13.5±0.5 178±2 3000 深圳市迎丰天线技术有限公司 SHEN ZHEN YINGFENG ANTENNA TECHNOLO…

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TEL：+860755-23073599FAX：+860755-23097189E-mail:[email protected] 地址：深圳市宝安区航空路锦驰中心3015 SHENZHE 深圳市云顶通讯电子有限公司 Shenzhen Yunding Communication Electronics Co., Ltd. N 客户 ： 深圳市沙糖科技有限公司 项目名称 PROJECT： SSTC03S 品名规格 DESCRIPTION： FPC(YD-SSTC03S-2.4G)-1.13黑-L55mm-1代 料号 PARTNO.： 客户料号 CUSPARTNO. ： 日期 DATE： 2026-5-11 云顶呈样签章 工程 ENGINEERINGDEPARTMENT 品保 QCDEPARTMENT 业务 SALESDEPARTMENT 客户承认签章 工程 ENGINEERINGDEPARTMENT 品保 QCDEPARTMENT 采购 PURCHASINGDEPARTMENT 联系电话：075523073599 ж承认书一式三份，惠蒙贵司承认签章 жApprovalinduplicate,pleasesignedbyyourcompany. 承認書 APPROVALSHEET TEL：+860755-23073599FAX：+860755-23097189E-mail:[email protected] 地址：深圳市宝安区航空路锦驰中心3015 深圳市云顶通讯电子有限公司 SHENZHEN 1. 测试项目与设备 测试项目设备 1.S11参数 （S-parameter） 1.回波损耗（ReturnLoss） 2.电压驻波比（VSWR） 网络分析仪:AgilentE5071B HP8753D 2.有源测试（Active）1.发射功率（TRP） 2.接收灵敏度（TIS） 1.暗室：ETS7x4x3m(3D)Chamber ETS5x3x3m(3D)Chamber 2.综合测试仪:Agilent8960E5515B×2 StarPointSP6011Cmw500 3.无源测试 （Passive） 1.天线增益（Gain）2.天线效 率（Efficiency） 1.暗室：ETS7x4x3m(3D)Chamber ETS5x3x3m(3D)Chamber 2.网络分析仪：Agi…

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