2ALS8-OP0004Off-road NFC module

DeclarationofConformity FederalCommunicationsCommission AuthorizationandEvaluationDivision FCCID:2ALS8-OP0004 Pleasebenotifiedthatwe,theundersigned,Ninebot(Changzhou)TechCo.,Ltd.declaresthatthe productwhichbearstheaboveFCCIDisalsocompliantwiththeFCCrequirementsforsDOC.Andthe sDOCprocedureshallbecarriedoutpriortomarketingthedeviceintheUS. Sincerely, _________________ Name:CherryZhao Title:CertificationManager Email:[email protected] Date:2026/01/29

Ninebot(Changzhou)TechCo.,Ltd. FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Date:01-29-2026 FCCID:2ALS8-OP0004 ApplicantFRN:0026431767 USAgent–AttestationStatement/Part2.911(d)(7) Ninebot(Changzhou)TechCo.,Ltd.certifies,thatasofthedateofthefilingoftheapplication, wehavedesignatedFCCUSAgent,LLCtoacceptserviceofprocessonourbehalffortheabove referencedFCCID. Ninebot(Changzhou)TechCo.,Ltd.,acceptstomaintainanagentofserviceofprocessinthe UnitedStatesfornolessthanoneyearaftereitherthegranteehaspermanentlyterminatedall marketingandimportationoftheapplicableequipmentwithintheU.S.,ortheconclusionofany Commission-relatedadministrativeorjudicialproceedinginvolvingtheequipment,whicheveris later. FCCUSAgent,LLC,acceptsasofthedateofthefilingofthisapplication,theobligationofbeing thedesignatedagentforthepurposeofacceptingserviceofprocessonbehalfofNinebot (Changzhou)TechCo.,Ltd.fortheabovereferencedFCCID. DesignatedAgentInformation: CompanyName:FCCUSAgent,LLC FRN:0033402884 Address:3722IllinoisAvenue,SaintCharles,IL,60174,USA ContactPerson:TimPayne Phone:708-571-3148 Email:[email protected] Sincerely, Company:Ninebot(Changzhou)TechCo.,Ltd.DesignatedAgent:FCCUSAgent,LLC CompanyRepresentative:CherryZhaoDesignatedAgentRepresentative:TimPayne Signature: Signature:

FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:02-27-2026 FCCID:2ALS8-OP0004 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing Ninebot(Changzhou)TechCo.,Ltd.(“theapplicant”)certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. Ninebot(Changzhou)TechCo.,Ltd.(“theapplicant”)certifiesthattheequipmentforwhich authorizationissoughtdoesnotincludecybersecurityoranti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofitssuccessorsandassignees,includingequipmentwithintegratedKaspersky Lab,Inc.(oranyofitssuccessorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24- 886andKDB986446D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing Ninebot(Changzhou)TechCo.,Ltd.(“theapplicant”)certifiesthat,asofthedateofthefilingofthe application,theapplicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofits subsidiariesoraffiliates)asanentityproducing“covered”equipment. Sincerely, _________________ Name:CherryZhao Position:CertificationManager Date:2026-02-27

ConfidentialityRequestLetter FederalCommunicationsCommission AuthorizationandEvaluationDivision FCCID:2ALS8-OP0004 PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequest confidentialtreatmentofinformationaccompanyingthisapplicationasoutlined below: 1.BlockDiagram 2.Schematics 3.OperationalDescription Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarily releasedtothepublic.Thepublicdisclosureofthesemattersmightbeharmfultothe applicantandprovideunjustifiedbenefitstoitscompetitors. TheapplicantunderstandsthatpursuanttoRule0.457,disclosureofthisapplication andallaccompanyingdocumentationwillnotbemadebeforethedateoftheGrant forthisapplication. Sincerely, _________________ Name:CherryZhao Title:CertificationManager Email:[email protected] Date:2026/01/29

ShortTermConfidentialityRequestLetter FederalCommunicationsCommission AuthorizationandEvaluationDivision FCCID:2ALS8-OP0004 Pursuanttosections0.457and0.459ofCFR47Commission’spolicyandtoavoid prematurereleaseofsensitiveinformationpriortomarketingorreleaseofthe producttothepublic,theapplicantrequeststhefollowingdocumentscontainedin thiscertificationapplicationbetemporarilywithheldfrompublicdisclosureforan initialperiodof180days: 1.ExternalPhotos 2.InternalPhotos 3.TestSetupPhotos 4.UserManual Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarily releasedtothepublic.Thepublicdisclosureofthesemattersmightbeharmfultothe applicantandprovideunjustifiedbenefitstoitscompetitors. TheapplicantunderstandsthatpursuanttoRule0.457,disclosureofthisapplication andallaccompanyingdocumentationwillnotbemadebeforethedateoftheGrant forthisapplication. Sincerely, _______________ Name:CherryZhao Title:CertificationManager Email:[email protected] Date:2026/01/29

DeclarationofAuthorization We Name:Ninebot(Changzhou)TechCo.,Ltd. Address:16F-17F,BlockA,Building3,ChangwuMidRoad18#,WujinDist., Changzhou,Jiangsu,China Declarethat: NameRepresentativeofagent:MarlinChen AgentCompanyname:MRTTechnology(Suzhou)Co.,Ltd Address:D8Building,YouxinIndustrialPark,No.2 Tian'edangRd.,WuzhongEconomicDevelopment Zone City:Suzhou Country:China isauthorizedtoapplyforCertificationofthefollowingproduct(s): Product:Off-roadNFCmodule FCCID:2ALS8-OP0004 ModelNo.:BA.17.00.0496.01 Sincerely, Name:CherryZhao Title:CertificationManager Email:[email protected] Date:2026/01/29

JustificationStatement FederalCommunicationsCommission AuthorizationandEvaluationDivision FCCID:2ALS8-OP0004 Pleasebenotifiedthatwe,theundersigned,Ninebot(Changzhou)TechCo.,Ltd.statethatall measurementswereperformedradiatedandthereforeadditionalantennagaindocumentationis notrequired. Sincerely, _________________ Name:CherryZhao Title:CertificationManager Email:[email protected] Date:2026/01/29

MRT Technology (Suzhou) Co., Ltd. Report No.: R26S1044019-U401 Phone: +86-512-66308358 Report Version: V01 Web: www.mrt-cert.com Issue Date: 2026-02-13 Template Version: 2.1 1 of 10 RF Exposure Evaluation Declaration FCC ID: 2ALS8-OP0004 Applicant: Ninebot (Changzhou) Tech Co., Ltd. Product: Off-road NFC module Model No.: BA.17.00.0496.01 FCC Rule Part(s): FCC Part 2.1091 Result: Complies Evaluation Date: 2026-02-06 Reviewed By: Vincent Yu Approved By: Robin Wu The test results relate only to the samples tested. This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report. Testing was performed in accordance with the applicable measurement procedures. The test results reported herein apply only to the specific item(s) tested. The test report shall not be reproduced except in full without the written approval of MRT Technology (Suzhou) Co., Ltd. Report No.: R26S1044019-U401 2 of 10 Revision History Report No. Version Description Issue Date Note R26S1044019-U401 V01 Initial Report 2026-02-13 Valid Report No.: R26S1044019-U401 3 of 10 CONTENTS Description Page 1. General Information ............................................................................................................................... 4 1.1. Applicant ........................................................................................................................................4 1.2. Manufacturer .................................................................................................................................4 1.3. Testing Facility ...............................................................................................................................4 1.4. Product Information .......................................................................................................................5 1.5. Antenna Details .............................................................................................................................5 1.6. Device Classification .....................................................................................................................5 1.7. Applied Standards .........................................................................................................................5 2. RF Exposure Evaluation ........................................................................................................................ 6 2.1. Limits .............................................................................................................................................6 2.2. MPE Exemptions ...........................................................................................................................7 2.3. Calculated Result ....................................................................................................................... 10 Report No.: R26S1044019-U401 4 of 10 1. General Information 1.1. Applicant Ninebot (Changzhou) Tech Co., Ltd. 16F-17F, Block A, Building 3, Changwu Mid Road 18#, Wujin Dist., Changzhou, Jiangsu, China 1.2. Manufacturer Nine Tech Co., Ltd. 1 Xingben Rd, XinbeiDist, Changzhou, Jiangsu Province, China 1.3. Testing Facility Test Site - MRT Suzhou Laboratory Laboratory Location (Suzhou - Wuzhong) D8 Building, No.2 Tian’edang Rd., Wuzhong Economic Development Zone, Suzhou, China Laboratory Location (Suzhou - SIP) 4b Building, Liando U Valley, No.200 Xingpu Rd., Shengpu Town, Suzhou Industrial Park, China Laboratory Location (Suzhou - Wujiang) Building 1, No.1 Xingdong Road, Wujiang, Suzhou, Jiangsu, People’s Republic of China Laboratory Accreditations A2LA: 3628.01 CNAS: L10551 FCC: CN1166 ISED: CN0001 Test Site - MRT Shenzhen Laboratory Laboratory Location (Shenzhen) 1G, Building A, Junxiangda Building, Zhongshanyuan Road West, Nanshan District, Shenzhen, China Laboratory Accreditations A2LA: 3628.02 CNAS: L10551 FCC: CN1284 ISED: CN0105 Test Site - MRT Taiwan Laboratory Laboratory Location (Taiwan) No. 38, Fuxing 2nd Rd., Guishan Dist., Taoyuan City 333, Taiwan (R.O.C.) Laboratory Accreditations TAF: 3261 FCC: 291082, TW3261 ISED: TW3261 Report No.: R26S1044019-U401 5 of 10 1.4. Product Information Product Name Off-road NFC module Model No. BA.17.00.0496.01 Serial No. LZAW526AHA0244 NFC Specification 13.56 MHz Operating Temp. -45 ~ 125 °C Power Voltage 48 V DC Note: The information of the EUT (Equipment Under Test) was provided by the manufacturer. The accuracy, completeness, and validity of the information are solely the responsibility of the manufacturer. 1.5. Antenna Details Technology Frequency Range (MHz) Antenna Type Peak Gain (dBi) NFC 13.56 Coil Antenna -- Note: The antenna type is from antenna data sheet provided by the manufacturer. 1.6. Device Classification According to the user manual, this device is classified as a Mobile Device. So, the RF exposure evaluation requirements of § 2.1091 for mobile device exposure conditions subject to MPE limits. 1.7. Applied Standards According to the specifications of the manufacturer, the EUT must comply with the requirements of the following standards: ⚫ FCC Part 2.1091 ⚫ KDB 447498 D04 Interim General RF Exposure Guidance v01 Report No.: R26S1044019-U401 6 of 10 2. RF Exposure Evaluation 2.1. Limits According to FCC §1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in §1.1307(b) Limits For Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Average Time (Minutes) (A) Limits for Occupational/ Control Exposures 0.3 ~ 3.0 614 1.63 *(100) ≤6 3.0 ~ 30 1842/f 4.89/f *(900/f 2 ) <6 30 ~ 300 61.4 0.163 1.0 <6 300 ~ 1500 -- -- f/300 <6 1500 ~ 100000 -- -- 5 <6 (B) Limits for General Population/ Uncontrolled Exposures 0.3 ~ 1.34 614 1.63 *(100) <30 1.34 ~30 824/f 2.19/f…

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Unit: mm

MRT Technology (Suzhou) Co., Ltd. Report No.: R26S1044019-U201 Phone: +86-512-66308358 Report Version: V01 Web: www.mrt-cert.com Issue Date: 2026-02-13 Template Version: 2.2 1 of 29 RF MEASUREMENT REPORT FCC ID: 2ALS8-OP0004 Applicant: Ninebot (Changzhou) Tech Co., Ltd. Product: Off-road NFC module Model No.: BA.17.00.0496.01 FCC Classification: Part 15 Low Power Communication Device Transmitter (DXX) FCC Rule Part(s): Part 15 Subpart C (Section 15.225) Result: Complies Received Date: 2026-01-28 Test Date: 2026-01-29 ~ 2026-02-03 Reviewed By: Vincent Yu Approved By: Robin Wu The test results relate only to the samples tested. This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report. Testing was performed in accordance with the applicable measurement procedures. The test results reported herein apply only to the specific item(s) tested. The test report shall not be reproduced except in full without the written approval of MRT Technology (Suzhou) Co., Ltd. Report No.: R26S1044019-U201 2 of 29 Revision History Report No. Version Description Issue Date Note R26S1044019-U201 V01 Initial Report 2026-02-13 Valid Report No.: R26S1044019-U201 3 of 29 CONTENTS Description Page 1. General Information ................................................................................................................................. 5 1.1. Applicant ....................................................................................................................................... 5 1.2. Manufacturer ................................................................................................................................ 5 1.3. Testing Facility .............................................................................................................................. 5 1.4. Product Information ...................................................................................................................... 6 1.5. Radio Specification ....................................................................................................................... 6 2. Test Configuration .................................................................................................................................... 7 2.1. Test Mode .................................................................................................................................... 7 2.2. Test Configuration and Software .................................................................................................. 7 2.3. Applied Standards ........................................................................................................................ 7 2.4. Test Environment Condition ......................................................................................................... 7 3. Antenna Requirements ............................................................................................................................ 8 4. Measuring Instrument .............................................................................................................................. 9 5. Decision Rules and Measurement Uncertainty ................................................................................... 10 5.1. Decision Rules ........................................................................................................................... 10 5.2. Measurement Uncertainty .......................................................................................................... 10 6. Test Result .............................................................................................................................................. 11 6.1. Summary .................................................................................................................................... 11 6.2. In-band Emission Measurement ................................................................................................ 12 6.2.1. Test Limit .................................................................................................................................... 12 6.2.2. Test Procedure ........................................................................................................................... 12 6.2.3. Test Setting ................................................................................................................................. 12 6.2.4. Test Setup .................................................................................................................................. 13 6.2.5. Test Result .................................................................................................................................. 13 6.3. Out-band Emission Measurement .............................................................................................. 14 6.3.1. Test Limit .................................................................................................................................... 14 6.3.2. Test Procedure ........................................................................................................................... 14 6.3.3. Test Setting ................................................................................................................................. 14 6.3.4. Test Setup .................................................................................................................................. 16 6.3.5. Test Result .................................................................................................................................. 16 6.4. Occupied Bandwidth Measurement ........................................................................................... 17 6.4.1. Test Limit ...................................................................................................................................…

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