2BH4X-AAGKSP01STEM PROJECTS KITS

SHENZHENDANYUNLANTUKEJIYOUXIANGONGSI (August15,2024) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(i)requestfor(FCCID:2BH4X-AAGKSP01) [SHENZHENDANYUNLANTUKEJIYOUXIANGONGSI](“theapplicant”)certifiesthat theequipmentforwhichauthorizationissoughtisnot“covered”equipmentprohibited fromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCCrules. Sincerely, (Applicantsignature) (TINGCHEN) SHENZHENDANYUNLANTUKEJIYOUXIANGONGSI (August15,2024) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(ii)requestfor(FCCID:2BH4X-AAGKSP01) [SHENZHENDANYUNLANTUKEJIYOUXIANGONGSI](“theapplicant”)certifiesthat, asofthedateofthefilingoftheapplication,theapplicantisnotidentifiedonthe CoveredListasanentityproducing“covered”equipment. Sincerely, (Applicantsignature) (TINGCHEN)

1/1 USAgentforServiceofProcessLETTEROFATTESTATION TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USAgentforServiceofProcess: CompanyName:EasyVendingLLC FRN:0035766930 ContactName:JessiePeng Address:P.O.BOX192ROSEMEAD,CA91770-192UnitedStates TelephoneNo:(858)905-0218 Email:[email protected] Applicant: Companyname:SHENZHENDANYUNLANTUKEJIYOUXIANGONGSI FRN:0035766831 ProductDescription:STEMPROJECTSKITS Granteecode:2BH4X FCCID:2BH4X-AAGKSP01 ContactName:TINGCHEN Address:Room703A09,TianliCentralBusinessPlaza,No.199,Haide3rdRoad,Haizhu Community,YuehaiStreet,NanshanDistrict,Shenzhen,GuangdongProvince,China TelephoneNo:+86-755-89205404 Email:[email protected] [SHENZHENDANYUNLANTUKEJIYOUXIANGONGSI]certifiesthat,asof thedateofthisfilingoftheapplicationwiththeTCB,[EasyVendingLLC]isour designatedUSagentforserviceofprocessfortheabovereferencedFCCID. [SHENZHENDANYUNLANTUKEJIYOUXIANGONGSI]acceptstomaintain anagentfornolessthanoneyearafterthegranteehasterminatedall marketingandimportationortheconclusionofanycommissionrelated proceedinginvolvingequipment.[EasyVendingLLC]accepts,asofthedateof thefilingoftheapplication,theobligationofthedesignatedUSagentfor serviceofprocessfortheabovereferenceFCCID. TheUSAgentforServiceofProcessisawareofandagreestocomplywiththerequirements outlinedintheFCCEquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause §2.911. TheApplicantisawareofandagreestocomplywiththerequirementsoutlinedintheFCC EquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause§2.911. Date:2024/08/22 Applicant’sName:TINGCHENUSAgent’sName:JessiePeng Title:ProductManagerTitle:Founder SignatureSignature

SHENZHENDANYUNLANTUKEJIYOUXIANGONGSI (August15,2024) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:CONFIDENTIALITYREQUESTFOR(STEMPROJECTSKITS/AAGKSP01 ANDFCCID:2BH4X-AAGKSP01) ToWhomItMayConcern: Thisletterservesasanofficialrequestforconfidentialityundersections0.457and0.459 ofCFR47.Wehaverequestedthatthe(BlockDiagram/Schematics/Operational Description)requiredtobesubmittedwiththisapplicationbepermanentlywithheld frompublicreview. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Incaseofshort-termConfidentiality,theapplicantrequeststheexhibitsselectedabove arewithheldfrompublicviewforaperiodofdaysfromthedateoftheGrantof EquipmentAuthorizationandpriortomarketing. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, Mustbesignedbytheapplicantcontactcitedastechnicalornon-technicalcontactonthe 731formprovidedtoEurofinsMETLabs,orbytheauthorizedagentifanappropriate authorizedagentletterhasbeenprovided.Letterssignedbytheapplicantshouldbe placedonapplicantletterhead.

SHENZHENDANYUNLANTUKEJIYOUXIANGONGSI (August15,2024) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorize(PreciseTesting&CertificationCo.,Ltd.)toactonour behalfinallmattersrelatingtoapplicationforequipmentauthorization,includingthesigningof alldocumentsrelatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothe denialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseAct of1988,21U.S.C.853(a). Thisagreementexpiresoneyearfromthecurrentdate. Sincerely, Mustbesignedbytheapplicantcontactcitedastechnicalornon-technicalcontactonthe 731formprovidedtoEurofinsMETLabs,orbytheauthorizedagentifanappropriate authorizedagentletterhasbeenprovided.Letterssignedbytheapplicantshouldbe placedonapplicantletterhead.

FCCID:2BH4X-AAGKSP01 FCCID:2BH4X-AAGKSP01 FCCID:2BH4X-AAGKSP01

LabelLocation

FCCID:2BH4X-AAGKSP01 FCCID:2BH4X-AAGKSP01 BTANT

Page1of2 RFEXPOSUREEVALUATION FCCID:2BH4X-AAGKSP01 ProductName: STEMPROJECTSKITS ModelName: AAGKSP01 BluetoothVersion:BTBDRandBLE Operatingfrequency:2402-2480MHz NumbersofChannel:79channelsforBDR+EDR AntennaType:PCBAntenna AntennaGain:4.54dBi TypeofModulation:GFSK,Π/4-DQPSK,8DPSKForDSS Powersupply: Input:DC5V DC4.5V HardwareVersion:N/A SoftwareVersion:N/A Page2of2 StandardRequirement Accordingto§15.247(i)and§1.1307b(1),systemsoperatingundertheprovisionsofthis sectionshallbeoperatedinamannerthatensuresthatthepublicisnotexposedtoradio frequencyenergylevelsinexcessoftheCommission’sguidelines.SeeKDB447498D01 GeneralRFExposureGuidancev06,section4.3.1. The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]*[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gSARextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison. Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤ 50mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtestexclusion. RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,usingmeasurements orcomputersimulation.WhenroutineSARevaluationisnotrequired,portabletransmitters withoutputpowergreaterthantheapplicablelowthresholdrequireSARevaluationtoquality forTCBapproval. Channel (MHz) Maximum output power (dBm) Tuneup tolerance (dBm) MaxTune UpPower (mW) Distance (mm) Calculation results Limit Operating Mode 2402 3.33 3.33 ± 12.93089350.9231153BDR AccordingtoKDB447498,nostand-alonerequiredforBTantenna,andnosimultaneousSAR measurementisrequired. Signature SimonPu Manager Date:2024-08-15

1/4 AntennaSpecification Product:PCBANT ModelName:AAGKSP01 Manufacture:SHENZHENDANYUNLANTUKEJIYOUXIANGONGSI TestItem : Antennagain;Radiationpatternandefficiency AntennaType : PCBAntenna FrequencyRange : 2400MHz-2500MHz TestData Frequency/MHzEfficiency/dBEfficiency/%MaxGain/dBiAvgGain/dBi 2400-3.8441.303.25-3.84 2410-3.2447.424.03-3.24 2420-3.1348.644.30-3.13 2430-2.7553.094.44-2.75 2440-2.3358.484.54-2.33 2450-2.3957.684.26-2.39 2460-2.4357.154.21-2.43 2470-2.2160.124.32-2.21 2480-2.1960.394.12-2.19 2490-2.2559.573.79-2.25 2500-2.1061.663.74-2.10 2/4 (1)X-ZPlane: VPhi=0 (2)Y-ZPlane: VPhi=90 (3)X-YPlane: HTheta=90 3/4 3DPatternfor2400MHz 3DPatternfor2450MHz 4/4 3DPatternfor2500MHz

ReportNo.:PTC24070414101EE-FC01 Page 1 of 84 FCCTESTREPORT FCCID:2BH4X-AAGKSP01 Product:STEMPROJECTSKITS ModelName:AAGKSP01 Brand:Gleamkid ReportNo.:PTC24070414101EE-FC01 Preparedfor SHENZHENDANYUNLANTUKEJIYOUXIANGONGSI Room703A09,TianliCentralBusinessPlaza,No.199,Haide3rdRoad,HaizhuCommunity, YuehaiStreet,NanshanDistrict,Shenzhen,GuangdongProvince,China Preparedby PreciseTesting&CertificationCo.,Ltd. Building1,No.6,TongxinRoad,DongchengStreet,Dongguan,Guangdong,China ReportNo.:PTC24070414101EE-FC01 Page 2 of 84 1TESTRESULTCERTIFICATION Applicant’sname:SHENZHENDANYUNLANTUKEJIYOUXIANGONGSI Address: Room703A09,TianliCentralBusinessPlaza,No.199,Haide3rd Road,HaizhuCommunity,YuehaiStreet,NanshanDistrict, Shenzhen,GuangdongProvince,China Manufacture'sname:SHENZHENDANYUNLANTUKEJIYOUXIANGONGSI Address: Room703A09,TianliCentralBusinessPlaza,No.199,Haide3rd Road,HaizhuCommunity,YuehaiStreet,NanshanDistrict, Shenzhen,GuangdongProvince,China Productname:STEMPROJECTSKITS Modelname:AAGKSP01 Standards:FCCCFR47Part15Section15.247 Testprocedure:ANSIC63.10:2013 TestDate:Jul.10,2024toJul.22,2024 DateofIssue:Aug.15,2024 TestResult:Pass ThisdevicedescribedabovehasbeentestedbyPTC,andthetestresultsshowthatthe equipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditisapplicable onlytothetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofPTC,this documentmaybealteredorrevisedbyPTC,personalonly,andshallbenotedintherevision ofthedocument. TestEngineer: Jackzhou/Engineer TechnicalManager: SimonPu/Manager ReportNo.:PTC24070414101EE-FC01 Page 3 of 84 Contents Page 1TESTRESULTCERTIFICATION...............................................................................................................................2 2TESTSUMMARY..........................................................................................................................................................5 3TESTFACILITY.............................................................................................................................................................5 4GENERALINFORMATION..........................................................................................................................................6 4.1GENERALDESCRIPTIONOFE.U.T.....................................................................................................................6 4.2TESTMODE.........................................................................................................................................................7 5EQUIPMENTDURINGTEST......................................................................................................................................9 5.1EQUIPMENTSLIST...............................................................................................................................................9 5.2MEASUREMENTUNCERTAINTY.........................................................................................................................11 5.3DESCRIPTIONOFSUPPORTUNITS...................................................................................................................12 6CONDUCTEDEMISSION..........................................................................................................................................13 6.1E.U.T.OPERATION............................................................................................................................................13 6.2EUTSETUP.......................................................................................................................................................13 6.3TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION).................................................................................14 6.4MEASUREMENTPROCEDURE:...........................................................................................................................14 6.5CONDUCTEDEMISSIONLIMIT...........................................................................................................................14 6.6MEASUREMENTDESCRIPTION..........................................................................................................................14 6.7CONDUCTEDEMISSIONTESTRESULT.............................................................................................................14 7RADIATEDSPURIOUSEMISSIONS......................................................................................................................17 7.1EUTOPERATION...............................................................................................................................................17 7.2TESTSETUP......................................................................................................................................................18 7.3SPECTRUMANALYZERSETUP..........................................................................................................................19 7.4TESTPROCEDURE.............................................................................................................................................20 7.5SUMMARYOFTESTRESULTS...........................................................................................................................21 8MAXIMUMPEAKOUTPUTPOWERTEST............................................................................................................28 8.1TESTSTANDARDANDLIMIT..............................................................................................................................28 8.2TESTSETUP......................................................................................................................................................28 8.3TESTPROCEDURE.............................................................................................................................................28 8.4TESTDATA....................................…

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FCCID:2BH4X-AAGKSP01 ConductedEmissions RadiatedSpuriousEmissions From30MHz-1000MHz FCCID:2BH4X-AAGKSP01 Testfrequencyfrom1GHz