2A9F7-ROBINSONRobinson

ShenzhenEnvisionTechnologyInnovationCo.,Ltd. CoveredEquipmentCertificationAttestationLetter 05/12/2026 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA ATTN.:ReviewingEngineer FCCID:2A9F7-ROBINSON ShenzhenEnvisionTechnologyInnovationCo.,Ltd.(“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtisnot“covered”equipmentprohibitedfrom receivinganequipmentauthorizationpursuanttosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. ShenzhenEnvisionTechnologyInnovationCo.,Ltd.(“theapplicant”)certifiesthat,asofthe dateofthefilingoftheapplication,theapplicantisnotidentifiedontheCoveredList(as aspecificallynamedentityoranyofitssubsidiariesoraffiliates)asanentityproducing “covered”equipment. ShenzhenEnvisionTechnologyInnovationCo.,Ltd. (“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtdoesnotincludecybersecurityoranti-virus softwareproducedorprovidedbyKasperskyLab,Inc.oranyofitssuccessorsand assignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyofits successorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886 andKDB986446D01CoveredEquipmentGuidancesectionB(2a). Signed: Printedname:JasonTang Title:Manager CompanyName:ShenzhenEnvisionTechnologyInnovationCo.,Ltd. Date:05/12/2026

Shenzhen Envision Technology Innovation Co., Ltd. * the applicant must designate a contact located in the United States for purposes of acting as the appl icant’s agent for service of process, regardless of whether the applicant is a domestic or forei gn ent ity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 05/12/2026 TO: Feder al Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2A9F7-ROBINSON FRN of applicant: 0033105990 Per section 2.911(d)(7) of the FCC rules, [Shenzhen Envision Technology Innovation Co., Ltd.] (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: C ompany Name: FCC US Agent, LLC FCC Registration Number (FRN): 0033402884 Physical U.S. Company Address: 3722 Illinois Avenue, Saint Charles, IL 60174, USA Contact Person: Tim Payne Agent Email Address: [email protected] The abov e contact person accepts the obligation for service of process. The appl icant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. A pplicant Signed: Agent Signed (if different from Applicant): Signed: Printed name: Jason Tang Title: Manager Company Name: Shenzhen Envision Technology Innovation Co., Ltd. Date: 05/12/2026 S igned: Printed name: Tim Payne Title: Manager Company Name: FCC US Agent, LLC Date: 05/12/2026

DATE:05/12/2026 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 AuthoritytoActasAgent Onourbehalf,IappointShenzhenEUTestingLaboratoryLimited (101,BuildingB1,FuqiaoFourthArea,QiaotouCommunityFuhaiSubdistrictBaoan District,Shenzhen,China)(NameofAgentcompanynameandaddress)toactasour agentinthepreparationofthisapplicationforequipmentcertification.Icertifythat submitteddocumentsproperlydescribethedeviceorsystemforwhichequipment certificationissought.Ialsocertifythateachunitmanufactured,importedormarketed,as definedintheFederalCommunicationsCommission’sregulationswillhaveaffixedtoita labelidenticaltothatsubmittedforapprovalwiththisapplication. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonour behalf,Iacknowledgethatallresponsibilityforcomplyingwiththetermsandconditions forcertification,stillresideswithShenzhenEnvisionTechnologyInnovationCo.,Ltd. (301,Building4,1970ScienceandTechnologyPark,MinzhiStreet,LonghuaDistrict, Shenzhen,China)(ApplicantNameandaddress) Signed: Printedname:JasonTang Title:Manager CompanyName:ShenzhenEnvisionTechnologyInnovationCo.,Ltd. Date:05/12/2026

Date05/12/2026 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeComplianceTesting,LLCtoactonourbehalfinallmatters relatingtoapplicationforequipmentauthorization,includingthesigningofalldocumentsrelatingto thesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothedenialof benefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988,21 U.S.C.853(a). Sincerely, Signed: Printedname:JasonTang Title:Manager CompanyName:ShenzhenEnvisionTechnologyInnovationCo.,Ltd. Date:05/12/2026

DATE05/12/2026 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:___2A9F7-ROBINSON______ ProductName:___Robinson___ RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommission’srules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: (Listherethedocumentsforwhichyouareseekingconfidentiality–forexample...)  Schematics Blockdiagram Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. Signed: Printedname:JasonTang Title:Manager CompanyName:ShenzhenEnvisionTechnologyInnovationCo.,Ltd. Date:05/12/2026

DATE:05/12/2026 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2A9F7-ROBINSON ProductName:Robinson RequestforShort-TermConfidentiality PursuanttoSections0.457and0.459ofthecommissionrules,andinaccordancewiththeFCCPublicnotice datedJune15,2004(DA04-1705),weherebyrequestshort-termconfidentialityforthefollowingitemspriorto marketingthedevice.: TestSetupPhotos ExternalPhotos InternalPhotos UserManual Theapplicantrequeststheexhibitsselectedaboveasshorttermconfidentialbewithheldfrompublicview foraperiodof180daysfromthedateoftheGrantofEquipmentAuthorizationandpriortomarketing.This istoavoidprematurereleaseofsensitiveinformationpriortomarketingorreleaseoftheproducttothe public. Signed: Printedname:JasonTang Title:Manager CompanyName:ShenzhenEnvisionTechnologyInnovationCo.,Ltd. Date:05/12/2026

ShenzhenEnvisionTechnologyInnovationCo.,Ltd. DeclarationonModelDifferences We, ShenzhenEnvisionTechnologyInnovationCo.,Ltd. 301,Building4,1970ScienceandTechnologyPark,MinzhiStreet,LonghuaDistrict, Shenzhen,China Declarethatthefollowingproduct(s): ProductName:Robinson ModelNo.:Robinson,Robinson-I,Robinson-II,Robinson-III,Robinson-IV,Robinson-V FCCID:2A9F7-ROBINSON Allmodelsaresamewithelectricalparametersandinternalcircuitstructure,butonlydifferin appearancecolorandmodelname.Therefore,the(Robinson)modelwillbetheprimarytest model. Themanufacturerwouldtakealltheresponsibilitiesfortheaboveproduct(s). Forandonbehalfof Shenzhen,China AuthorizedpersonLocation Name:JasonTang Position:Manager Dateofissue:2026-05-12 *IherebydeclarethatIamentitledtosignonbehalfoftheapplicantandthattheinformationsuppliediscorrectandcomplete.

LabelLocation Label Size:30*35mm ProductName:Robinson ModelNo.:Robinson Input:5VDC FCCID:2A9F7-ROBINSON

RFEXPOSUREEVALUATION FCCID:2A9F7-ROBINSON AccordingtoKDB447498D01GeneralRFExposureGuidancev06andFCC 1.1310:Thecriterialistedinthefollowingtableshallbeusedtoevaluatethe environmentimpactofhumanexposuretoradiofrequency(RF)Radiationas specifiedin § 1.1307(b): RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,using measurementsorcomputersimulation.WhenroutineSARevaluationisnot required,portabletransmitterswithoutputpowergreaterthantheapplicable lowthresholdrequireSARevaluationtoqualifyforTCBapproval. BLE: Channel (MHz) Maximum outputpower (dBm) Tuneup tolerance (dBm) MaxTune UpPower (dBm) Distance (mm) Calculation results Limit Operating Mode 2402-1.11 -1.11±1 -0.1150.3023 BLE 2440-0.18-0.18±10.8250.3773 2480-0.42-0.42±10.5850.3603 2402-1.13 -1.13±1 -0.1350.3013 2440-0.74-0.74±10.2650.3323 2480-0.44-0.44±10.5650.3583 TestResults:PASS.

TESTREPORT ReportNo.:8429EU122419W Applicant:ShenzhenEnvisionTechnologyInnovationCo., Ltd. Address:301, Building4, 1970Scienceand TechnologyPark, MinzhiStreet,LonghuaDistrict,Shenzhen,China ProductName:Robinson ModelNo.:Robinson(referto clause2.4) Trademark:N/A FCC ID:2A9F7-ROBINSON Test Standard(s):47 CFRPart 15.247 Test Result:Pass Dateof Receipt:Mar. 24, 2026 Test Date:Mar. 25, 2026- Apr. 03, 2026 Dateof Issue:May 12, 2026 ISSUEDBY: SHENZHENEU TESTINGLABORATORYLIMITED Preparedby:Reviewedand Approvedby: LandonQiu/ EngineerSallyZhang/Manager Page2 of 70ReportNo.: 8429EU122419W TRF Version:A01 RevisionRecord ReportVersionIssuedDateDescriptionStatus V0May 12, 2026OriginalValid Page3 of 70ReportNo.: 8429EU122419W TRF Version:A01 Tableof Contents 1 COVERPAGE...........................................................................................................................................................1 2 GENERALINFORMATION...............................................................................................................................5 2.1 APPLICANTINFORMATION.......................................................................................................................5 2.2 MANUFACTURERINFORMATION...............................................................................................................5 2.3 FACTORYINFORMATION..........................................................................................................................5 2.4 GENERALDESCRIPTIONOFE.U.T...........................................................................................................5 2.5 TECHNICALINFORMATIONOFE.U.T........................................................................................................6 3 TESTSUMMARY..............................................................................................................................................7 3.1 TESTSTANDARD.....................................................................................................................................7 3.2 TESTVERDICT........................................................................................................................................7 3.3 TESTLABORATORY.................................................................................................................................8 4 TESTCONFIGURATION...................................................................................................................................9 4.1 TESTENVIRONMENT...............................................................................................................................9 4.2 TESTEQUIPMENT...................................................................................................................................9 4.3 DESCRIPTIONOFSUPPORTUNIT...........................................................................................................11 4.4 TESTMODE..........................................................................................................................................11 4.5 DESCRIPTIONOFCALCULATION............................................................................................................11 4.5.1FieldStrengthCalculation.....................................................................................................11 4.5.2DisturbanceCalculation........................................................................................................11 4.6 MEASUREMENTUNCERTAINTY..............................................................................................................12 4.7 DEVIATIONFROMSTANDARDS...............................................................................................................12 4.8 ABNORMALITIESFROMSTANDARDCONDITION......................................................................................12 5 EVALUATIONRESULTS(EVALUATION)......................................................................................................13 5.1 ANTENNAREQUIREMENT.......................................................................................................................13 5.1.1Test Specification..................................................................................................................13 5.1.2Test Data ...............................................................................................................................13 6 RADIOSPECTRUMMATTERTESTRESULTS(RF) ....................................................................................14 6.1 CONDUCTEDEMISSIONATACPOWERLINE...........................................................................................14 6.1.1Test Specification..................................................................................................................14 6.1.2E.U.T.Operation....................................................................................................................14 6.1.3Test SetupDiagram...............................................................................................................14 6.1.4Test Data ...............................................................................................................................14 6.2 6DB BANDWIDTH..................................................................................................................................17 6.2.1Test Specification..................................................................................................................17 6.2.2E.U.T.Operation....................................................................................................................17 6.2.3Test SetupDiagram...............................................................................................................18 6.2.4Test Data .......................................................................................................…

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Dong Guan SYL Technology CO.,LTD Antenna Specification Manufacture：SYL Product Name：X-MEN-HJX037-BT-RX 鲁滨逊-黑色 Antenna Antenna Type：PCB Test Date：2025/7/20 Tested by： Checked By: Approved By: ChengMingWei DuLin QianCongGen Dong Guan SYL Technology CO.,LTD 1.General Description Manufacturer： Dong Guan SYL Technology CO.,LTD Address： Room 203,DongHui Industrial Park,No.198 DaTang Road, DongGuan, GuangDong,China Product Name： X-MEN-HJX037-BT-RX 鲁滨逊-黑色 Antenna Product model： X-MEN-HJX037-BT-RX 鲁滨逊-黑色 Antenna Type： PCB Antenna Test Frequency： 2400-2500MHz Antenna Gain： 1.9dBi VSWR： ＜1.4 Impedance： 50Ω Polarization： Linear Dong Guan SYL Technology CO.,LTD 2.Antenna size: Dong Guan SYL Technology CO.,LTD 3.Gain and Efficiency 1.9 Frequency Efficiency （%） Antenna Gain ( dBi) 2400MHz 1. 1 2440MHz 60.2% 56.2% 53.2% 2480MHz 1.2 Dong Guan SYL Technology CO.,LTD 4.ReturnLoss 5.XY-Plane Dong Guan SYL Technology CO.,LTD 6.XZ-Plane 7. YZ-Plane Dong Guan SYL Technology CO.,LTD 8.3D Radiation Pattern Diagram 10.Test Setup Photo