2BSTO-RF433Remote control

• Warning: 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. 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.

Page1of3FCCID:2BSTO-RF433 GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,Guangdong,P.R.C. Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com ExternalPhotosoftheEUT Fig.1 Fig.2 Page2of3FCCID:2BSTO-RF433 GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,Guangdong,P.R.C. Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com Fig.3 Fig.4 Page3of3FCCID:2BSTO-RF433 GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,Guangdong,P.R.C. Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com Fig.5 Fig.6

Page1of1FCCID:2BSTO-RF433 GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com LABELANDLOCATION (Size:L3.5cmxW1.5cm) Remotecontrol Model:RF433 FCCID:2BSTO-RF433 LabelLocation

Page1of4FCCID:2BSTO-RF433 GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com InternalPhotosoftheEUT Fig.1 Fig.2 Page2of4FCCID:2BSTO-RF433 GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com Fig.3 Fig.4 Page3of4FCCID:2BSTO-RF433 GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com Fig.5 Fig.6 Page4of4FCCID:2BSTO-RF433 GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com Fig.7 Fig.8 Antenna

Page1of9FCCID:2BSTO-RF433ReportNo.:LCSC10245005EB GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,Guangdong,P.R.C. Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com RFExposureEvaluation For TianchangYixiangElectronicTechnologyCo.,Ltd. Remotecontrol TestModel:RF433 Preparedfor:TianchangYixiangElectronicTechnologyCo.,Ltd. Address:SouthsideofWei’erRoad,VillageofTou,JinjiTown,TianchangCity, AnhuiProvince Preparedby:GuangzhouLCSComplianceTestingLaboratoryLtd. Address:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou, Guangdong,China Tel: (+86)020-39166689 Fax: (+86)020-39166619 Web:www.LCS-cert.com Mail:[email protected] Dateofreceiptoftestsample:October24,2025 Numberoftestedsamples:2 SampleNo.:C251017005-1,C251017005-2 Serialnumber:Prototype DateofTest:October24,2025~November04,2025 DateofReport:November05,2025 Page2of9FCCID:2BSTO-RF433ReportNo.:LCSC10245005EB GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,Guangdong,P.R.C. Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com RFExposureEvaluation ReportReferenceNo...................:LCSC10245005EB DateofIssue....................................:November05,2025 TestingLaboratoryName...........:GuangzhouLCSComplianceTestingLaboratoryLtd. Address.............................................: No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou, Guangdong,China TestingLocation/Procedure......... :FullapplicationofHarmonisedstandards■ PartialapplicationofHarmonisedstandards□ Otherstandardtestingmethod□ Applicant’sName..........................:TianchangYixiangElectronicTechnologyCo.,Ltd. Address.............................................:SouthsideofWei’erRoad,VillageofTou,JinjiTown,Tianchang City,AnhuiProvince TestSpecification Standard...........................................: FCCKDBpublication447498D01General1RFExposure Guidancev06 FCCCFR47part11.1310 FCCCFR47part22.1093 TestReportFormNo...................:TRF-4-E-215A/0 TRFOriginator.................................:GuangzhouLCSComplianceTestingLaboratoryLtd. MasterTRF ...................................... :Dated2011-03 GuangzhouLCSComplianceTestingLaboratoryLtd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe GuangzhouLCSComplianceTestingLaboratoryLtd.isacknowledgedascopyrightownerandsource ofthematerial.GuangzhouLCSComplianceTestingLaboratoryLtd.takesnoresponsibilityforandwill notassumeliabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterial duetoitsplacementandcontext. TestItemDescription..................:Remotecontrol TradeMark.......................................:N/A TestModel.......................................:RF433 Ratings..............................................:PleaseRefertoPage6 Result................................................:PASS Compiledby:Supervisedby:Approvedby: LifengLe/AdministratorJustinZhu/TechniqueDirectorGavinLiang/Manager Page3of9FCCID:2BSTO-RF433ReportNo.:LCSC10245005EB GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com RFExposureEvaluation EUT.........................................:Remotecontrol TestModel...........................:RF433 Applicant...............................:TianchangYixiangElectronicTechnologyCo.,Ltd. Address..................................: SouthsideofWei’erRoad,VillageofTou,JinjiTown,Tianchang City,AnhuiProvince Telephone...............................:/ Fax..........................................:/ Manufacturer.......................:TianchangYixiangElectronicTechnologyCo.,Ltd. Address...................................:SouthsideofWei’erRoad,VillageofTou,JinjiTown,Tianchang City,AnhuiProvince Telephone...............................:/ Fax..........................................:/ Factory....................... :TianchangYixiangElectronicTechnologyCo.,Ltd. Address...................................:SouthsideofWei’erRoad,VillageofTou,JinjiTown,Tianchang City,AnhuiProvince Telephone...............................:/ Fax..........................................:/ TestResultPASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetestlaboratory. TestReportNo.:LCSC10245005EB November05,2025 Dateofissue Page4of9FCCID:2BSTO-RF433ReportNo.:LCSC10245005EB GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com RevisionHistory ReportVersionIssueDateRevisionContentRevisedBy 000November05,2025InitialIssue--- Page5of9FCCID:2BSTO-RF433ReportNo.:LCSC10245005EB GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com TABLEOFCONTENTS DescriptionPage 1.PRODUCTINFORMATION.....................................................................................................................................6 2.EVALUATIONMETHODANDLIMIT.....................................................................................................................7 3.REFEREVALUATIONMETHOD...........................................................................................................................8 4.CONDUCTEDPOWER............................................................................................................................................8 5.EVALUATIONRESULTS........................................................................................................................................8 6.CONCLUSION................................................................................................…

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Inverted F Antenna Specification Summary MODERF-032 ITEM ANT SPEC Resonate Frequency433.92MHz ANT 天线增益 Antenna gain 0.8dBi 驻波比 VSWR/50 Ohms 1.5 or less 方向图Radiation pattern全向（ Omni directio) 极化方式 PolarizationHorizontal and Vertical Impedance 50 Ohm Antenna Length50mm Manufacturexinshikong Electronics Co. , Ltd. Antenna Photo & Length (mm) 测试参数 1.RETURN LOSS2.V.S.W.R: 3.SMITH CHART: Manufacturer. : Tianchang Yixiang Electronic Technology Co., Ltd. Address: South side of Wei’er Road, Village of Tou, Jinji Town, Tianchang City, Anhui Province We statement that All measurements were performed radiated and therefore additional antenna gain documentation is not required.

Page1of27FCCID:2BSTO-RF433ReportNo.:LCSC10245005EA GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com FCCTESTREPORT For TianchangYixiangElectronicTechnologyCo.,Ltd. Remotecontrol TestModel:RF433 Preparedfor:TianchangYixiangElectronicTechnologyCo.,Ltd. Address:SouthsideofWei’erRoad,VillageofTou,JinjiTown,TianchangCity, AnhuiProvince Preparedby:GuangzhouLCSComplianceTestingLaboratoryLtd. Address:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou, Guangdong,China Tel: (+86)020-39166689 Fax: (+86)020-39166619 Web:www.LCS-cert.com Mail:[email protected] Dateofreceiptoftestsample:October24,2025 Numberoftestedsamples:2 SampleNo.:C251017005-1,C251017005-2 Serialnumber:Prototype DateofTest:October24,2025~November04,2025 DateofReport:November05,2025 Page2of27FCCID:2BSTO-RF433ReportNo.:LCSC10245005EA GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com FCCTESTREPORT FCCCFR47PART15C(15.231) ReportReferenceNo. .................. :LCSC10245005EA DateofIssue .................................... :November05,2025 TestingLaboratoryName...........:GuangzhouLCSComplianceTestingLaboratoryLtd. Address.............................................: No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou, Guangdong,China TestingLocation/Procedure......... :FullapplicationofHarmonisedstandards■ PartialapplicationofHarmonisedstandards□ Otherstandardtestingmethod□ Applicant’sName..........................:TianchangYixiangElectronicTechnologyCo.,Ltd. Address.............................................:SouthsideofWei’erRoad,VillageofTou,JinjiTown,Tianchang City,AnhuiProvince TestSpecification Standard...........................................:FCCCFR47PART15SubpartC,ANSIC63.10-2020 TestReportFormNo...................:TRF-4-E-176A/0 TRFOriginator.................................:GuangzhouLCSComplianceTestingLaboratoryLtd. MasterTRF ...................................... :Dated2011-03 GuangzhouLCSComplianceTestingLaboratoryLtd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe GuangzhouLCSComplianceTestingLaboratoryLtd.isacknowledgedascopyrightownerandsource ofthematerial.GuangzhouLCSComplianceTestingLaboratoryLtd.takesnoresponsibilityforandwill notassumeliabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterial duetoitsplacementandcontext. TestItemDescription..................:Remotecontrol TradeMark.......................................:N/A TestModel.......................................:RF433 Ratings..............................................:PleaseRefertoPage6 Result................................................:PASS Compiledby:Supervisedby:Approvedby: LifengLe/AdministratorJustinZhu/TechniqueDirectorGavinLiang/Manager Page3of27FCCID:2BSTO-RF433ReportNo.:LCSC10245005EA GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com FCC--TESTREPORT EUT.........................................:Remotecontrol TestModel...........................:RF433 Applicant...............................:TianchangYixiangElectronicTechnologyCo.,Ltd. Address..................................: SouthsideofWei’erRoad,VillageofTou,JinjiTown,Tianchang City,AnhuiProvince Telephone...............................:/ Fax..........................................:/ Manufacturer.......................:TianchangYixiangElectronicTechnologyCo.,Ltd. Address...................................:SouthsideofWei’erRoad,VillageofTou,JinjiTown,Tianchang City,AnhuiProvince Telephone...............................:/ Fax..........................................:/ Factory.................................: TianchangYixiangElectronicTechnologyCo.,Ltd. Address...................................:SouthsideofWei’erRoad,VillageofTou,JinjiTown,Tianchang City,AnhuiProvince Telephone...............................:/ Fax..........................................:/ TestResultPASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetestlaboratory. TestReportNo.:LCSC10245005EA November05,2025 Dateofissue Page4of27FCCID:2BSTO-RF433ReportNo.:LCSC10245005EA GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com RevisionHistory ReportVersionIssueDateRevisionContentRevisedBy 000November05,2025InitialIssue-- Page5of27FCCID:2BSTO-RF433ReportNo.:LCSC10245005EA GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com TABLEOFCONTENTS 1.GENERALINFORMATION.....................................................................................................................................6 1.1.DESCRIPTIONOFDEVICE(EUT).........................................................................................................................6 1.2.OBJECTIVE............................................................................................................................................................7 1.3.ENVIRONMENTALCONDITIONS............................................................................................................................7 1.4.SUPPORTEQUIPMENTLIST.................................................................................................................................7 1.5.EXTERNALI/OPORT...............................................................................................................…

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Page1of2FCCID:2BSTO-RF433 GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com TestSetupPhotosoftheEUT TestSetupPhoto(s)ofRadiatedEmissionsMeasurement Fig.1 Fig.2 Page2of2FCCID:2BSTO-RF433 GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,City,GuangdongChina Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com TestSetupPhoto(s)ofRFConductedMeasurement Fig.3