2A7KZ-R270Curtain motorR270 series

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. Curtain motorR270 series

CoveredEquipmentAttestationLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(5)(i)-(ii)oftheCommission’sRules(47C.F.R.)weattestasfollows fortheproductlistedbelow: FCCIDModelname 2A7KZ-R270R2XX/*-*R2XX/*-**X=0~9*=A~Z We, Applicant CompanyName:NingboSunfreeMotorTechnologyCo.,Ltd. Address:202,No.418,QihangNorthRoad,Yinzhou District,Ningbo,China Phone:N/A certifythattheequipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules.Thisincludesthecybersecurityandanti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofistsuccessorsandassignees. Wecertifythat,asofthedateofthefilingoftheapplication,theapplicantisnotidentifiedon theCoveredListasanentityproducing“covered”equipment. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2026-9-14 SignatureDate PrintedNameofSignee:ChunJiang Company:NingboSunfreeMotor TechnologyCo.,Ltd. Phone:N/A Email:[email protected] Address:202,No.418,QihangNorthRoad, YinzhouDistrict,Ningbo,China Fax:N/A

NingboSunfreeMotorTechnologyCo.,Ltd. 202,No.418,QihangNorthRoad,YinzhouDistrict,Ningbo,China Date:2026-9-14 FCCID:2A7KZ-R270 ModelNumber:R2XX/*-*R2XX/*-**X=0~9*=A~Z To:FederalCommunicationCommission AuthorizationandEvaluationDivision7435OaklandMillsRoad Columbia,MD21048 ToWhomItMayConcern, We,NingboSunfreeMotorTechnologyCo.,Ltd.herebydeclarethatourproduct(Curtain motorR270series ) TestModel:R270/A,ListModel:R2XX/*-*R2XX/*-**X=0~9 *=A~Zelectricalidentical,theSchematic,PCBlayout,structureandsoftwarearesame, onlythedifferenceisthemodelname. Shouldyouhaveanyquestionsorcommentsregardingthismatter,pleasehave mybestattention. Sincerely, (Signed) Name/Title:ChunJiang/Manager Company:NingboSunfreeMotorTechnologyCo.,Ltd. Address:202,No.418,QihangNorthRoad,YinzhouDistrict,Ningbo,China Phone:N/A FaxNumber:N/A E-Mail:[email protected]

ConfidentialityRequestLetter ForCertificationServiceintheUSA FederalCommunicationCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoParagraphs§0.457and0.459oftheCommission’sRules(47C.F.R.)andSection §552(b)(4)oftheFreedomofInformationAct,werequestconfidentialityforthe documentationofthefollowingproducts: FCCIDModelname 2A7KZ-R270R2XX/*-*R2XX/*-**X=0~9*=A~Z Fortheproductslistedabove,werequestpermanentconfidentialityforallapplicableexhibits asthereare:  theOperationalDescription  theBlockDiagram theSchematics Theabovelistedexhibitscontaintradesecretsandproprietaryinformationthatcouldbeof benefittoourcompetitors. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2026-9-14 SignatureDate PrintedNameofSignee/Title:ChunJiang/Manager Company:NingboSunfreeMotorTechnologyCo.,Ltd. Address:202,No.418,QihangNorthRoad,YinzhouDistrict, Ningbo,China Phone:-- Fax:-- Email:[email protected]

ReportNo.:CISRR26082744701 Page 35 of 40 8.EXTERNALANDINTERNALPHOTOS 8.1.ExternalPhotos ReportNo.:CISRR26082744701 Page 36 of 40

LD-R270-A 森瑞机电 校对 设计 适用产品 尺 寸 材 质 油 墨 印刷工艺 是否含流水码 或条形码 审定 版本 日期 制图 是否覆膜 颜 色 使用规范 备注: 工艺描述 客户号 铭 牌 2026-7-29 A-00 R270/A 外壳材质：铝合金 S.03 光纤激光镭雕 15/2026 生产批号：15 周 2026年 Model R270/A Nm Rpm 1.0 25 Intput USB-C 5V 2A FCC ID:2A7KZ-R270 2000mAh 14Wh Charging: Red Light On Fully charged: Green Light On Low Battery: Red Light FlashingMade in China 15-2026

ReportNo.:CISRR26082744701 Page 37 of 40 8.2.InternalPhotos ReportNo.:CISRR26082744701 Page 38 of 40 ReportNo.:CISRR26082744701 Page 39 of 40 ANT ReportNo.:CISRR26082744701 Page 40 of 40 ------Endofthereport-----

ReportNo.:CISRR26082744702 Reporttemplateversion:CISE-TR-001-A0Page:1of5 TESTREPORT RFExposureEvaluation ReportNo.CISRR26082744702 ProjectNo.CISR260827447 FCCID2A7KZ-R270 ApplicantNingboSunfreeMotorTechnologyCo.,Ltd. Address202,No.418,QihangNorthRoad,YinzhouDistrict,Ningbo,China ManufacturerNingboSunfreeMotorTechnologyCo.,Ltd. Address202,No.418,QihangNorthRoad,YinzhouDistrict,Ningbo,China ProductNameCurtainmotorR270series Trademark- Model/TypereferenceR270/A ListedModel(s)R2XX/*-*R2XX/*-**X=0~9*=A~Z Standard 47CFRPart2.1093 DateofsamplereceiptAugust27,2026 TestdateAugust31,2026toSeptember6,2026 IssuedateSeptember7,2026 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangceTesting TechnologyCo.,Ltd. ReportNo.:CISRR26082744702 Reporttemplateversion:CISE-TR-001-A0Page:2of5 1.APPLICABLESTANDARD 47CFRPart2.1093:Radiofrequencyradiationexposureevaluation:portabledevices ANSIC95.1–2019:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. 47CFRPart1.1307:Actionsthatmayhaveasignificantenvironmentaleffect,forwhichEnvironmental Assessments(EAs)mustbeprepared. 2.REPORTVERSION VersionNo.IssuedateDescription 00September7,2026Original ReportNo.:CISRR26082744702 Reporttemplateversion:CISE-TR-001-A0Page:3of5 3.RADIOSPECIFICATIONDESCRIPTION 433M Supportedtype:FSK Note:PleaserefertoRFreportfordetailedtechnicalspecifications 4.SIMULTANEOUSTRANSMISSIONANALYSIS Thesedevicesuseasingletransmittermoduleandantennaforboth433. ReportNo.:CISRR26082744702 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 Radio type Frequency (MHz) Maximum EIRP #1 (dBm) Maximum tune-up #2 EIRP(dBm) Minimum distance (mm) Evaluated value LimitResult 433M433.92-27.23-265.000.00033.00PASS Note #1:ThisvaluecomesfromtheRFtestreport Max.FieldStrength：68.03dBuV/m@3m MaximumEIRP=Max.FieldStrength-104.8+20logD =68.03-104.8+20log3 =-27.23dBm #2:Thisvalueisdeclaredbytheapplicant. ReportNo.:CISRR26082744702 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,orportableRFsourcekeither inthedeviceoratthetransmittersitefromanexistingevaluationatthelocationofexposure. ExposureLimit k =eitherthegeneralpopulation/uncontrolledmaximumpermissibleexposure (MPE)orspecicabsorptionrate(SAR)limitforeachxed,mobile,orportableRFsourcek, asapplicablefrom§1.1310ofthischapter. Result:NotApplicable --------EndofReport--------

Page 1 of 7 Antenna data sheet : : Testedby MODEL NAME TRADE NAME BRAND NAME PRODUCT NAME :PCB ANT :R270A : N/A :N/A :IEEE Std 149-2021STANDARD(S) APPLICANT ADDRESS :Ningbo Sunfree Motor Technology Co., Ltd. :202, No. 418, Qihang North Road, Yinzhou District, Ningbo, China Page 3 of 7 1.Dimension drawing Page 4 of 7 2.Annex A Test Setup Photos Page 2 of 7 2.3D Radiation Pattern 3. Gain FrequencyGain(dBi) 419MHz-10.99 429MHz-10.85 429.2MHz-10.87 433.92MHz-10.00 439MHz-10.74 447.675MHz-10.50 449MHz-10.49 429.2MHz Page 7 of 7 433.92MHz 447.675MHz

ReportNo.:CISRR26082744701 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of32 TESTREPORT ReportNo.CISRR26082744701 ProjectNo.CISR260827447 FCCID2A7KZ-R270 ApplicantNingboSunfreeMotorTechnologyCo.,Ltd. Address202,No.418,QihangNorthRoad,YinzhouDistrict,Ningbo,China ManufacturerNingboSunfreeMotorTechnologyCo.,Ltd. Address202,No.418,QihangNorthRoad,YinzhouDistrict,Ningbo,China ProductNameCurtainmotorR270series Trademark- Model/TypereferenceR270/A ListedModel(s)R2XX/*-*R2XX/*-**X=0~9*=A~Z Standard 47CFRPart15.231 DateofsamplereceiptAugust27,2026 TestdateAugust31,2026toSeptember6,2026 IssuedateSeptember7,2026 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu ReportNo.:CISRR26082744701 Page 2 of 32 Contents 1.STANDARDANDAPPLICABLETESTMETHODS........................................................................................3 2.REPORTVERSION..........................................................................................................................................3 3.TESTDESCRIPTION.......................................................................................................................................4 4.SUMMARY........................................................................................................................................................5 4.1.ProductDescription*..................................................................................................................................5 4.2.RadioSpecificationDescription*..............................................................................................................5 4.3.ModificationofEUT.....................................................................................................................................5 4.4.Deviationfromstandards...........................................................................................................................5 4.5.TestingSite...................................................................................................................................................5 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.............................................................................................................................................10 6.1.EvaluationResults(Evaluation)...............................................................................................................10 6.1.1.Antennarequirement..............................................................................................................................10 6.2.RadioSpectrumMatterTestResults(RF)...............................................................................................11 6.2.1.ConductedEmissionatACpowerline.................................................................................................11 6.2.2.20dBBandwidth......................................................................................................................................14 6.2.3.Transmittime...........................................................................................................................................17 6.2.4.DutyCycle...............................................................................................................................................19 6.2.5.FieldStrengthofTheFundamentalSignal..........................................................................................23 6.2.6.RadiatedEmission(below1GHz)..........................................................................................................25 6.2.7.RadiatedEmission(above1GHz).........................................................................................................29 ReportNo.:CISRR26082744701 Page 3 of 32 1.STANDARDANDAPPLICABLETESTMETHODS Thetestswereperformedaccordingtofollowingstandards: 47CFRPart15.231:Periodicoperationintheband40.66-40.70MHzandabove70MHz ANSIC63.10-2020:AmericanNationalStandardofProceduresforComplianceTestingofUnlicensed WirelessDevices. 2.REPORTVERSION VersionNo.IssuedateDescription 00September7,2026Original ReportNo.:CISRR26082744701 Page 4 of 32 3.TESTDESCRIPTION No.TestItemStandardRequirementResult 1Antennarequirement47CFR15.203Pass 2ConductedEmissionatACpowerline47CFR15.207(a)Pass 320dBBandwidth47CFR15.231(c)Pass 4Transmittime47CFR15.231(a)(1)Pass 5DutyCycle-Pass 6 FieldStrengthofTheFundamental Signal 47CFR15.231(b)Pass 7RadiatedEmission(below1GHz)47CFR15.231Pass 8RadiatedEmission(above1GHz)47CFR15.231Pass Note: ‒Themeasurementuncertaintyisnotincludedinthetestresult. ReportNo.:CISRR26082744701 Page 5 of 32 4.SUMMARY 4.1.ProductDescription* Mainunitinformation: ProductName:CurtainmotorR270series Trademark:- ModelNo.:R270/A ListedModel(s):R2XX/*-*R2XX/*-**X=0~9*=A~Z Modeldifference: Thedifferencebetweendifferentmodelsisthatinthisapplication,dueto diff…

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ReportNo.:CISRR26082744701 Page 33 of 40 7.TESTSETUPPHOTOS ConductedEmissionatACpowerline FieldStrengthofTheFundamentalSignal RadiatedEmission(below1GHz) ReportNo.:CISRR26082744701 Page 34 of 40 RadiatedEmission(above1GHz)