2BGYU-XB-SL-Q7-BKSmart Lock

Rev1/26/2023 ShenzhenXriverTechnologyCo.,LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-7-23 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BGYU-XB-SL-Q7-BK (“ShenzhenXriverTechnologyCo.,LTD”)certifiesthattheequipmentforwhichauthorizationissought isnot“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection 2.903oftheFCCrules. (“ShenzhenXriverTechnologyCo.,LTD”)certifiesthattheequipmentforwhichauthorizationissought doesnotincludecybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc.orany ofitssuccessorsandassignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyofits successorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446 D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (Applicantsignature)DengfengZhao (Applicantprintedname) Rev1/26/2023 ShenzhenXriverTechnologyCo.,LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-7-23 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BGYU-XB-SL-Q7-BK (“ShenzhenXriverTechnologyCo.,LTD”)certifiesthat,asofthedateofthefilingoftheapplication, ShenzhenXriverTechnologyCo.,LTDisnotidentifiedontheCoveredList(asaspecificallynamedentity oranyofitssubsidiariesoraffiliates)asanentityproducing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname)DengfengZhao

ShenzhenXriverTechnologyCo.,LTD 2.911(d)(7)USAAgentv1.4 Section2.911(d)(7)USAAgentforServiceofProcess Companyname:ShenzhenXriverTechnologyCo.,LTD Address:1105,HuafengNewEnergyBuilding,YuyeCommunity,XixiangStreet, BaoanDistrict,Shenzhen,China ProductName:SmartLock FCCID:2BGYU-XB-SL-Q7-BK Model(s):XB-SL-Q7-BK 2.911(d)(7)USADesignatedAgentforServiceofProcess We,[ShenzhenXriverTechnologyCo.,LTD](“theapplicant”)designate[CELLTINC.] NOTE1 forthepurposeofacceptingserviceofprocessonbehalfoftheapplicant. Applicantconsent:WeAcknowledgeourconsenttoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipment,andatthephysicalU.S. addressandemailaddressofthedesignatedagentandacknowledgeour acceptanceofourobligationtomaintainanagentforserviceofprocessintheUnited Statesfornolessthanoneyearaftereitherthegranteehaspermanentlyterminated allmarketingandimportationoftheapplicableequipmentwithintheU.S.,orthe conclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolving theequipment,whicheverislater. Agentobligation:WeAcknowledgeourobligationtoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipmentatourphysicalU.S. addressandemailaddressfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipment withintheU.S.,ortheconclusionofanyCommission-relatedadministrativeorjudicial proceedinginvolvingtheequipment,whicheverislater. USAAgent Companyname:CELLTINC. Address:140121STST#12958 SACRAMENTO,CA95811,USA FRN:0036412567 ContactName:ThompsonLim Applicant Companyname:ShenzhenXriver TechnologyCo.,LTD Address:1105,HuafengNewEnergy Building,YuyeCommunity,Xixiang Street,BaoanDistrict,Shenzhen,China FRN:0035553312 FCCGranteeCode:2BGYU ShenzhenXriverTechnologyCo.,LTD 2.911(d)(7)USAAgentv1.4 TelephoneNo:001-424-3474188 Email:[email protected] ContactName:DengfengZhao TelephoneNo:13823750308 Email:[email protected] Signature: Title:Manager Signature: Title:Manager Date:2026-7-23Date:2026-7-23 NOTE1:AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforservice ofprocess. Reference;FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

ShenzhenXriverTechnologyCo.,LTD Date ： 2026-7-23 Product/ModelNumber:SmartLock/XB-SL-Q7-BK FCCID ： 2BGYU-XB-SL-Q7-BK Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyQAILaboratoriesLtd.onour behalfshallhavethesameeffectasactsofourown. By:DengfengZhao ContactListedonFCCWesbite Title:Manager Email:[email protected] Telephone:13823750308 Onbehalfof:ShenzhenXriverTechnologyCo.,LTD

ShenzhenXriverTechnologyCo.,LTD OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:July23,2026 Subject;RequestforConfidentiality FCCID:2BGYU-XB-SL-Q7-BK ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure SoftwareSecurityRequirementsforUNIIdevices Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:DengfengZhao Title:Manager

ShenzhenXriverTechnologyCo.,LTD ProductSimilarityDeclaration Productname:SmartLock Modelname:XB-SL-Q7-BK,XB-SL-Q5-BK Trademark:N/A FCCID:2BGYU-XB-SL-Q7-BK We(ShenzhenXriverTechnologyCo.,LTD)herebystatethatall themodelsareelectricalidenticalincludingthesamesoftware parameterandhardwaredesign(i.e.,circuitdesign,PCBLayout, RFmodule/circuit,antennatype(s)andantennalocation, componentsonPCB,etc.,),samemechanicalstructureand design(includingproductenclosure,materials,etc.,),theonly differencearethemodelname.Fronthandlekeypaddifference: XB-SL-Q7-BKtouchtype,XB-SL-Q5-BKbuttontype. Signature: Name:DengfengZhao Title:Manager Place,date:Shenzhen,2026.7.23

Size: 30mm*15mm Smart Lock Model: XB-SL-Q7-BK FCC ID: 2BGYU-XB-SL-Q7-BK

FCC ID: 2BGYU-XB-SL-Q7-BK RF Exposure Evaluation According to KDB 447498 D01 General RF Exposure Guidance v06 and part 2.1091，Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. Limits 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 ) Averaging time (minutes) (A) Limits for Occupational/Controlled 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 1500–100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f 2 ) 30 30–300 27.5 0.073 0.2 30 300–1500 f/1500 30 1500–100,000 1.0 30 f = frequency in MHz Friis transmission formula: Pd = (Pout*G)/(4*pi*r 2 ) Where Pd = power density in mW/cm 2 , Pout = output power to antenna in mW; G = gain of antenna in linear scale, Pi = 3.1416; R = distance between observation point and center of the radiator in cm Pd id the limit of MPE, 1 mW/cm 2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. Test Result of RF Exposure Evaluation Remark： 1. In the case of simultaneous launches for BT: The Max Calc. Thresholds : BT: 0.000446＜1.0- So a SAR test is not required Operating Mode Frequency Measured Power Tune up tolerance Max. Tune up Power Antenna Gain Power Density at R=20cm Power Density Limit Result (MHz) (dBm) (dBm) (dBm) (dBi) (mW/cm 2 ) (mW/cm 2 ) BLE(1M) 2402-2480 -0.01 0±1 1 2.5 0.000446 1.0 PASS

AntennaSpecification Manufacture：TUYA ProductName：BT3LAntenna AntennaType：PCB TestDate：2020.05.12 Testedby：YinhuaZhang Approvedby：Licco Antenna TestReport Content 1.GeneralDescription..............................................................................1 2.TestConfigurations................................................................................2 2.1TestEnvironment.........................................................................2 2.2TestEquipment............................................................................2 2.3TestPrinciple................................................................................2 3.TestResults...........................................................................................3 3.1GainandEfficiency.......................................................................3 3.2RadiationPattern.........................................................................4 4.AntennaDimensions.............................................................................5 5.EUTPhoto.............................................................................................5 6.TestSetupPhoto...................................................................................6 1 1.GeneralDescription ManufacturerHangzhouTuyaInformationTechnologyCo.,Ltd Address Room701,Building3,MoreCenter,No.87GuDunRoad, Hangzhou,Zhejiang,China TestLocation Room106,Building3,LetongSciencePark,No.500, QiuyiRoad,BinjiangDistrict,Hangzhou ProductNameBT3LAntenna Productmodel BT3L AntennaType PCBAntenna TestItems Gain;Efficiency;RadiationPattern TestFrequency 2400-2500MHz TestStandard ANSI/IEEEStd149-1979 2 2.TestConfigurations 2.1TestEnvironment Temperature(°C)25 Humidity(%RH)60 AtmosphericPressure(kPa)100.5 2.2TestEquipment TestSystemTEM24Multi-probeMicrowaveChamber TestInstrumentAgilentE5071B 2.3TestPrinciple 3 3.TestResults 3.1GainandEfficiency Frequency(MHz)PeakGain(dBi)Efficiency(%) 24001.6252.29 24101.7152.17 24201.9353.14 24301.9854.16 24402.0057.62 24502.1759.64 24602.4561.55 24702.3860.64 24802.5062.86 24902.3059.85 25002.4960.41 4 3.2RadiationPattern Phi02D Phi902D Theta902D 5 2480MHz3D 4.AntennaDimensions 5.EUTPhoto 6 6.TestSetupPhoto

Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page1of23 RF Test Data Duty Cycle ....................................................................................................................................................................... 2 Maximum Peak Conducted Output Power ...................................................................................................................... 5 -6dB Bandwidth ............................................................................................................................................................... 8 Occupied Channel Bandwidth ....................................................................................................................................... 11 Maximum Power Spectral Density Level ...................................................................................................................... 14 Band Edge .................................................................................................................................................................... 17 Conducted RF Spurious Emission ................................................................................................................................ 20 Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page2of23 Duty Cycle Condition Mode Frequency (MHz) Antenna Duty Cycle (%) Correction Factor (dB) 1/T (kHz) NVNT BLE 1M 2402 Ant1 26.72 5.73 5.99 NVNT BLE 1M 2440 Ant1 26.64 5.74 6.01 NVNT BLE 1M 2480 Ant1 26.72 5.73 5.99 Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page3of23 Duty Cycle NVNT BLE 1M 2402MHz Ant1 Duty Cycle NVNT BLE 1M 2440MHz Ant1 Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page4of23 Duty Cycle NVNT BLE 1M 2480MHz Ant1 Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page5of23 Maximum Peak Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Conducted Power (W) Limit Conducted(dBm) Verdict NVNT BLE 1M 2402 Ant1 -0.01 0.001 30 Pass NVNT BLE 1M 2440 Ant1 -0.46 0.0009 30 Pass NVNT BLE 1M 2480 Ant1 -1.2 0.00076 30 Pass Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page6of23 Peak Power NVNT BLE 1M 2402MHz Ant1 Peak Power NVNT BLE 1M 2440MHz Ant1 Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page7of23 Peak Power NVNT BLE 1M 2480MHz Ant1 Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page8of23 -6dB Bandwidth Condition Mode Frequency (MHz) Antenna -6 dB Bandwidth (MHz) Limit -6 dB Bandwidth (MHz) Verdict NVNT BLE 1M 2402 Ant1 0.5158 0.5 Pass NVNT BLE 1M 2440 Ant1 0.5221 0.5 Pass NVNT BLE 1M 2480 Ant1 0.5233 0.5 Pass Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page9of23 -6dB Bandwidth NVNT BLE 1M 2402MHz Ant1 -6dB Bandwidth NVNT BLE 1M 2440MHz Ant1 Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page10of23 -6dB Bandwidth NVNT BLE 1M 2480MHz Ant1 Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page11of23 Occupied Channel Bandwidth Condition Mode Frequency (MHz) Antenna 99% OBW (MHz) NVNT BLE 1M 2402 Ant1 1.2116 NVNT BLE 1M 2440 Ant1 1.2583 NVNT BLE 1M 2480 Ant1 1.2462 Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page12of23 OBW NVNT BLE 1M 2402MHz Ant1 OBW NVNT BLE 1M 2440MHz Ant1 Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page13of23 OBW NVNT BLE 1M 2480MHz Ant1 Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page14of23 Maximum Power Spectral Density Level Condition Mode Frequency (MHz) Antenna Conducted PSD (dBm/3kHz) Limit (dBm/3kHz) Verdict NVNT BLE 1M 2402 Ant1 -20.11 8 Pass NVNT BLE 1M 2440 Ant1 -20.82 8 Pass NVNT BLE 1M 2480 Ant1 -21.78 8 Pass Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page15of23 PSD NVNT BLE 1M 2402MHz Ant1 PSD NVNT BLE 1M 2440MHz Ant1 Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page16of23 PSD NVNT BLE 1M 2480MHz Ant1 Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page17of23 Band Edge Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT BLE 1M 2402 Ant1 -48.49 -20 Pass NVNT BLE 1M 2480 Ant1 -52.11 -20 Pass Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page18of23 Band Edge NVNT BLE 1M 2402MHz Ant1 Ref Band Edge NVNT BLE 1M 2402MHz Ant1 Emission Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page19of23 Band Edge NVNT BLE 1M 2480MHz Ant1 Ref Band Edge NVNT BLE 1M 2480MHz Ant1 Emission Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page20of23 Conducted RF Spurious Emission Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT BLE 1M 2402 Ant1 -43.35 -20 Pass NVNT BLE 1M 2440 Ant1 -40.81 -20 Pass NVNT BLE 1M 2480 Ant1 -42.77 -20 Pass Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page21of23 Tx. Spurious NVNT BLE 1M 2402MHz Ant1 Ref Tx. Spurious NVNT BLE 1M 2402MHz Ant1 Emission Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page22of23 Tx. Spurious NVNT BLE 1M 2440MHz Ant1 Ref Tx. Spurious NVNT BLE 1M 2440MHz Ant1 Emission Report No.: SZNTT26022832E1-1 SZNTT-TR728-0 Page23of23 Tx. Spurious NVNT BLE 1M 2480MHz Ant1 Ref Tx. Spurious NVNT BLE 1M 2480MHz Ant1 Emission

SZNTT-TR828-0 Page 1 of 34 Hotline: 0755-27889935 http://www.ntt-testing.com FCC TEST REPORT FCC ID: 2BGYU-XB-SL-Q7-BK Product : Smart Lock Model Name : XB-SL-Q7-BK Brand : N/A Report No. : SZNTT26022832E1-1 Prepared for Shenzhen Xriver Technology Co., LTD 1105, Huafeng New Energy Building, Yuye Community, Xixiang Street, Baoan District, Shenzhen,China Prepared by Shenzhen NTT Testing Technology Co., Ltd. 1B, Building 2, Factory Building & 103, Building 3, Factory Building, Dayang Industrial Park No.4, Industrial Avenue, Tangwei Community, Fuhai Sub-district,Bao 'an District, Shenzhen City, China TEL: 0755-27889935 Report No.: SZNTT26022832E1-1 SZNTT-TR828-0 Page 2 of 34 Hotline: 0755-27889935 http://www.ntt-testing.com 1 TEST RESULT CERTIFICATION Applicant’s name : Shenzhen Xriver Technology Co., LTD Address : 1105, Huafeng New Energy Building, Yuye Community, Xixiang Street, Baoan District, Shenzhen,China Manufacture's name : Shenzhen Xriver Technology Co., LTD Address : 1105, Huafeng New Energy Building, Yuye Community, Xixiang Street, Baoan District, Shenzhen,China Product name : Smart Lock Model name : XB-SL-Q7-BK Standards : FCC CFR47 Part 15 Section 15.247 Test procedure : ANSI C63.10-2020 + Cor. 1-2023+C63.10a-2024 + Errata to C63.10a-2024 KDB 558074 D01 15.247 Meas Guidance v05r02 Test Date : Jun. 18, 2026 to Jul. 28, 2026 Date of Issue : Jul. 28, 2026 Test Result : Pass This device described above has been tested by NTT, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of NTT, this document may be altered or revised by NTT, personal only, and shall be noted in the revision of the document. Prepared by(Test Engineer): Zhao Di Reviewer(Supervisor): Ken Wu Approved(Manager): Abel Yu Report No.: SZNTT26022832E1-1 SZNTT-TR828-0 Page 3 of 34 Hotline: 0755-27889935 http://www.ntt-testing.com Contents Page 1 TEST RESULT CERTIFICATION ................................................................................................................... 2 2 TEST SUMMARY ............................................................................................................................................ 5 3 TEST FACILITY .............................................................................................................................................. 6 4 GENERAL INFORMATION ............................................................................................................................. 7 4.1 GENERAL DESCRIPTION OF E.U.T. .......................................................................................................... 7 4.2 CHANNEL LIST ........................................................................................................................................ 8 4.3 TEST SETUP CONFIGURATION ................................................................................................................. 9 4.4 TEST MODE ........................................................................................................................................... 9 5 EQUIPMENT DURING TEST ........................................................................................................................ 10 5.1 EQUIPMENTS LIST ................................................................................................................................ 10 5.2 MEASUREMENT UNCERTAINTY .............................................................................................................. 12 5.3 DESCRIPTION OF SUPPORT UNITS ......................................................................................................... 12 6 CONDUCTED EMISSION ............................................................................................................................. 13 6.1 E.U.T. OPERATION ............................................................................................................................... 13 6.2 EUT SETUP ......................................................................................................................................... 13 6.3 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ........................................................................... 13 6.4 MEASUREMENT PROCEDURE ................................................................................................................ 14 6.5 CONDUCTED EMISSION LIMIT ................................................................................................................ 14 6.6 MEASUREMENT DESCRIPTION ............................................................................................................... 14 6.7 CONDUCTED EMISSION TEST RESULT ................................................................................................... 14 7 RADIATED SPURIOUS EMISSIONS ........................................................................................................... 17 7.1 EUT OPERATION .................................................................................................................................. 17 7.2 TEST SETUP ......................................................................................................................................... 18 7.3 SPECTRUM ANALYZER SETUP ............................................................................................................... 19 7.4 TEST PROCEDURE ................................................................................................................................ 19 7.5 SUMMARY OF TEST RESULTS ................................................................................................................ 21 8 CONDUCT BAND EDGE AND SPURIOUS EMISSIONS MEASUREMENT ............................................... 28 8.1 …

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