A4X-L4701Video Doorbell

120°, FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. FCC 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. 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. NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

OFF

CE LINK LIMITED 22 DongkangRoad, DalingshanTown, DongguanCity, GuangdongProvince,China Date: 2024-09-30 FederalCommunicationsCommission Authorizationand EvaluationDivision 7435 OaklandMills Road Columbia,MD 21046 Ref:AttestationStatementsPart 2.911(d)(5) (i) Filing SUBJECT:FCC Applicationfor FCC ID: A4X-L4701 To WhomIt May Concern: CE LINK LIMITEDcertifiesthat the equipmentfor which authorizationis soughtis not “covered” equipment prohibitedfrom receivingan equipmentauthorizationpursuantto section2.903 of the FCC rules. CE LINK LIMITEDcertifiesthat the equipmentfor which authorizationis soughtdoes not includecybersecurity or anti-virussoftwareproducedor providedby KasperskyLab, Inc. or any of its successorsand assignees, includingequipmentwith integratedKasperskyLab, Inc. (or any of its successorsand assignees)cybersecurity or anti-virussoftwarepursuantto DA-24-886and KDB 986446D01 CoveredEquipmentGuidancesection B(2a). Sincerely, Signatory [ChanghongChen, Engineer]

CE LINK LIMITED 22 DongkangRoad, DalingshanTown, DongguanCity, GuangdongProvince,China Date: 2024-09-30 FederalCommunicationsCommission Authorizationand EvaluationDivision 7435 OaklandMills Road Columbia,MD 21046 Ref:AttestationStatementsPart 2.911(d)(5) (ii) Filing SUBJECT:FCC Applicationfor FCC ID: A4X-L4701 To WhomIt May Concern: CE LINK LIMITEDcertifiesthat, as of the date of the filing of the application,the applicantis not identifiedon the CoveredList (as a specificallynamedentity or any of its subsidiariesor affiliates)as an entity producing “covered” equipment. Sincerely, Signatory [ChanghongChen,Engineer]

CE LINK LIMITED 22 DongkangRoad, DalingshanTown, DongguanCity, GuangdongProvince,China Date: 2024-09-30 FederalCommunicationsCommission Authorizationand EvaluationDivision 7435 OaklandMills Road Columbia,MD 21046 FCC ID: A4X-L4701 ApplicantFRN: 0021335963 US Agent – AttestationStatement/ Part 2.911(d)(7) CE LINK LIMITEDcertifiesthat , as of 2024-09-30, we have designatedFCC US Agent,LLC to acceptserviceof processon our behalffor FCC ID: A4X-L4701. CE LINK LIMITED, acceptsto maintainan agent of serviceof processin the UnitedStatesfor no less than one year after either the granteehas permanentlyterminatedall marketingand importationof the applicableequipmentwithin the U.S., or the conclusionof any Commission-relatedadministrativeor judicialproceedinginvolvingthe equipment,whicheveris later. FCC US Agent,LLC, acceptsas of the date of the filing of this application,the obligationof being the designatedagent for the purposeof acceptingserviceof processon behalfof CE LINK LIMITEDfor FCC ID: A4X-L4701. DesignatedAgentInformation: CompanyName:FCC US Agent,LLC U.S. Agent FRN: 0033402884 Address:3722 IllinoisAvenue,Saint Charles,IL, 60174,USA ContactPerson:Tim Payne Phone:708-571-3148 Email:[email protected] Sincerely, Company:CE LINK LIMITEDDesignatedAgent:FCC US Agent,LLC CompanyRepresentative:ChanghongChenDesignatedAgent Representative:Tim Payne Signature:Signature:

CELINKLIMITED 22DongkangRoad,DalingshanTown,DongguanCity,GuangdongProvince,China Date:2024-09-30 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 SUBJECT:FCCApplicationforFCCID:A4X-L4701 ToWhomItMayConcern: I,theundersigned,herebystatesthisequipmenthasbeentestedandfoundtocomplywiththelimitsfora ClassBdigitaldevice,pursuanttopart15oftheFCCRules,andwillapplytheSupplier'sDeclarationof ConformityproceduretotheclassBdevice.IunderstandthefollowingFCCrequirements: 1.DevicessubjecttotheSDoCprocedurearerequiredtobetestedtoshowcompliancewiththeFCC technicalregulationsbyarecognizedaccreditedtestinglaboratory.Thetestinglaboratorymustbe accreditedbyaCommissionapprovedaccreditationbodyordesignatedunderthetermsofa government-to-governmentMutualRecognitionAgreement(MRA).Alistingofthoseaccreditedtesting laboratoriesthathavebeenrecognizedbytheCommissionispublishedontheFCCWebpage: https://apps.fcc.gov/oetcf/eas/reports/TestFirmSearch.cfm(Selectthe"accredited"optiontosearchfor FCCrecognizedaccreditedtestfirms.) 2.Pt2.1077containsthelistofinformationthatmustbeincludedintheSupplier'sDeclarationof Conformity,whichmustbesuppliedwitheachproductsold.TheSDoCcomplianceinfoshallbeincluded intheUser’sManualorasaseparatesheet.Theinfomustcontainthename,address,andphone numberoftheresponsibleparty,whichmustbelocatedwithintheUnitedStates.Accordingto 2.909(b),theresponsiblepartyiseithertheManufactureroriftheproductisimportedtheImporter. Regards, Sincerely, Signatory [ChanghongChen,Engineer]

CE LINK LIMITED 22 DongkangRoad, DalingshanTown, DongguanCity, GuangdongProvince,China Date: 2024-09-30 FEDERALCOMMUNICATIONSCOMMISSION AUTHORIZATIONAND EVALUATIONDIVISION 7435 OAKLANDMILLSROAD COLUMBIA,MD 21046 SUBJECT:FCC Applicationfor FCC ID: A4X-L4701 POWEROF ATTORNEY To WhomIt May Concern: We, the undersigned,herebyauthorizeWaltekTestingGroup(Shenzhen)Co., Ltd. JandySo on our behalf,to apply to the FederalCommunicationsCommissionon our equipment.Any and all acts carriedout by Waltek TestingGroup(Shenzhen)Co., Ltd. JandySo on our behalfshall have the same effect as acts of our own. This is to advisethat we are in full compliancewith the Anti-DrugAbuseAct. We, CE LINK LIMITEDare not subjectto a denialof federalbenefitspursuantto Section5301 of the Anti-DrugAct of 1988, 21 USC853a,and no party to the applicationis subjectto a denialof federalbenefitspursuantto that section. Sincerely, Signatory [ChanghongChen, Engineer]

CE LINK LIMITED 22 DongkangRoad, DalingshanTown, DongguanCity, GuangdongProvince,China Date: 2024-09-30 FEDERALCOMMUNICATIONSCOMMISSION AUTHORIZATIONAND EVALUATIONDIVISION 7435 OAKLANDMILLSROAD COLUMBIA,MD 21046 SUBJECT:FCC Applicationfor FCC ID: A4X-L4701 ConfidentialityRequest To whomit may concern, Pursuantto the provisionsof the Commission’s rules Title 47 Sections§0.457 and §0.459,we are requestingthe Commissionto withholdthe followingattachment(s)as confidentialdocumentsfrom public disclosureindefinitely. ☒ Block Diagram ☐ Tune-UpInformation ☒ OperationalDescription ☐ SecurityInformation ☒ Schematics ☐ SoftwareDefinedRadio(SDR)Information ☒ Parts List The abovematerialscontaintrade secretsand proprietaryinformationnot customarilyreleasedto the public.The publicdisclosureof thesematerialsmay be harmfulto the applicantand provideunjustifiedbenefitsto its competitors. In additionalto abovementioneddocuments,in order to complywith the marketingregulationsin Title 47 CFR §2.803 and the importationrules in Title 47 CFR §2.1204,while ensuringthat businesssensitiveinformation remainsconfidentialuntil the actual marketingof newly authorizeddevices,we requestShort Term Confidentiality of the followingattachment(s); ☐ ExternalPhotos ☐ Test SetupPhotos ☐ InternalPhotos ☐ User Manual ☐For 45 days, pursuantto PublicNoticeDA 04-1705. or ☐For 180 days pursuantto KDB 726920D01. The applicantunderstandsthat pursuantto Section0.457of the Rules,disclosureof this applicationand all accompanyingdocumentationwill not be made beforethe date of the Grant for this application. Sincerely, Signatory [ChanghongChen, Engineer]

ReferenceNo.:WTX24X05122057W001/002Page2of19 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EXHIBIT2-EUTEXTERNALPHOTOGRAPHS EUTView1 EUTView2 ReferenceNo.:WTX24X05122057W001/002Page3of19 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EUTView3 EUTView4 ReferenceNo.:WTX24X05122057W001/002Page4of19 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EUTView5 EUTView6 ReferenceNo.:WTX24X05122057W001/002Page5of19 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EUTView7 EUTView8 ReferenceNo.:WTX24X05122057W001/002Page6of19 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EUTView9 EUTView10

ReferenceNo.:WTX24X05122057W001/002Page1of19 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn ANNEX EXHIBIT1-PRODUCTLABELING ProposedFCCIDLabelFormat FCCID:A4X-L4701 Specifications:Thelabelshallbesecurelyaffixedtoapermanentlyattachedpartofthedevice,inalocation whereitisvisibleoreasilyaccessibletotheuser,andshallnotbereadilydetachable.Thelabelshallbe sufficientlydurabletoremainfullylegibleandintactonthedeviceinallnormalconditionsofusethroughout thedevice’sexpectedlifetime. ProposedLabelLocationonEUT FCCIDLabel Location

Reference No.: WTX24X05122057W001/002 Page 7 of 19 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 3 - EUT INTERNAL PHOTOGRAPHS EUT Housing and Board View 1 EUT Housing and Board View 2 Reference No.: WTX24X05122057W001/002 Page 8 of 19 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 1 Solder Board-Component View 2 Reference No.: WTX24X05122057W001/002 Page 9 of 19 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 3 Solder Board-Component View 4 Reference No.: WTX24X05122057W001/002 Page 10 of 19 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 5 Solder Board-Component View 6

Reference No.: WTX24X05122057W001/002 Page 11 of 19 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 7 Solder Board-Component View 8 Reference No.: WTX24X05122057W001/002 Page 12 of 19 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 9 Solder Board-Component View 10 Reference No.: WTX24X05122057W001/002 Page 13 of 19 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 11 Solder Board-Component View 12 Reference No.: WTX24X05122057W001/002 Page 14 of 19 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 13 Solder Board-Component View 14 Reference No.: WTX24X05122057W001/002 Page 15 of 19 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 15 Solder Board-Component View 16

Reference No.: WTX24X05122057W001/002 Page 16 of 19 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Antenna View WIFIAntenna SRDAntenna

1.RFExposureRequirements 1.1GeneralInformation ClientInformation Applicant:CELINKLIMITED Addressofapplicant: 22DongkangRoad,DalingshanTown,DongguanCity,Guangdong Province,China. Manufacturer:DongguanCELINKLIMITED Addressofmanufacturer: 22DongkangRoad,DalingshanTown,DongguanCity,Guangdong Province,China. Factory1#:ANFUCELINKLIMITED Addressoffactory:AnfuCountyIndustrialZone,Ji'ancity,JiangxiProvince, P.R.China. Factory2#:CELINKVIETNAMCOMPANYLIMITED Addressoffactory:LotCNSG04&CNSG06VanTrungIndustrialZone,Viet Yendistrict,BacGiangProvince,Vietnam GeneralDescriptionofEUT: ProductName:VideoDoorbell TradeName:CE-LINK ModelNo.:L4701 AddingModel(s):/ RatedVoltage: RechargeableLithium-ionBattery:3.6V Externalpowersupply:DC5V ExtensionWires:8-24V~ RatedCurrent: Externalpowersupply:1.0A ExtensionWires:500mAmax BatteryCapacity:5200mAh PowerAdapter: Model:ADS-6RA-06-05050EPCU Input:100-240V~50/60Hz Output:5.0V1.0A5W FCCID:A4X-L4701 EquipmentType:Fixeddevice TechnicalCharacteristicsofEUT: Wi-Fi SupportStandards:802.11b,802.11g,802.11n FrequencyRange:2412-2462MHzfor802.11b/g/n(HT20) RFOutputPower:16.76dBm(Conducted) TypeofModulation:CCK,OFDM,QPSK,BPSK,16QAM,64QAM QuantityofChannels:11for802.11b/g/n(HT20) ChannelSeparation:5MHz TypeofAntenna:Built-inPCBantenna AntennaGain:3.01dBi SRD FrequencyRange:433.92MHz Max.FieldStrength:433.92MHz:79.62dBuV/m(3m) DataRate:/ Modulation:FSK AntennaType:Built-inSpringantenna AntennaGain:-4.43dBi 1.2RFExposureExemption Accordingto§1.1307(b)(3)andKDB447498D04InterimGeneralRFExposureGuidancev01,system operatingundertheprovisionsofthissectionshallbeoperatinginamannerthatthepublicisnotexposedto radiofrequencyenergylevelinexcesslimitformaximumpermissibleexposure. OptionA:FCCRulePart1.1307(b)(3)(i)(A):Theavailablemaximumtime-averagedpowerisnomorethan 1mW,regardlessofseparationdistance. OptionB:FCCRulePart1.1307(b)(3)(i)(B):Theavailablemaximumtime-averagedpoweroreffective radiatedpower(ERP),whicheverisgreater,islessthanorequaltothethresholdP th (mW)describedinthe followingformula.P th isgivenby: OptionC:FCCRulePart1.1307(b)(3)(i)(C):Theminimumseparationdistance(Rinmeters)fromthebodyof anearbypersonforthefrequency(finMHz)atwhichthesourceoperates,theERP(watts)isnomorethanthe calculatedvalueprescribedforthatfrequency.Rmustbeatleastλ/2π,whereλisthefree-spaceoperating wavelengthinmeters. SingleRFSourcesSubjecttoRoutineEnvironmentalEvaluation RFSourcefrequency(MHz)ThresholdERP(watts) 0.3-1.341,920R 2 1.34-303,450R 2 /f 2 30-3003.83R 2 300-1,5000.0128R 2 f 1,500-100,00019.2R 2 ForMultipleRFsources:FCCRulePart1.1307(b)(3)(ii): (A)Theavailablemaximumtime-averagedpowerofeachsourceisnomorethan1mWandthereisa separationdistanceoftwocentimetersbetweenanyportionofaradiatingstructureoperatingandthe nearestportionofanyotherradiatingstructureinthesamedevice,exceptifthesumofmultiplesourcesis lessthan1mWduringthetime-averagingperiod,inwhichcasetheymaybetreatedasasinglesource (separationisnotrequired). (B)InthecaseoffixedRFsourcesoperatinginthesametime-averagingperiod,orofmultiplemobileor portableRFsourceswithinadeviceoperatinginthesametimeaveragingperiod,ifthesumofthe fractionalcontributionstotheapplicablethresholdsislessthanorequalto1asindicatedinthefollowing equation. 1.3CalculatedResult Radio Access Technology Prediction Frequency Output Power Antenna Gain Duty Cycle Tune-Up Time-AveragedPower ERP (MHz)(dBm)(dBi)(%)(dBm)(dBm) Wi-Fi241216.763.0110017.0017.86 SRD433.92-11.21-4.4310.4-11.00-17.58 Frequency Option Min.DistanceMax.PowerExposureLimit Ratio Result (MHz)(cm)(dBm)(mW)(mW)Pass/Fail 2412C20.0017.8661.09768.000.08 Pass 433.92C20.00-17.580.02222.170.01Pass Note:1.a.Time-AveragedPower=OutputPower*DutyCycle; ERP=Time-AveragedPower+Antennagain-2.15dB; b.EIRP=E-104.8+20logD;OutputPower=EIRP-AntennaGain; ERP=EIRP-2.15dB 2.OptionA,BandCrefersasclause1.2. 3.ForoptionB,Max(time-averagedpower,effectiveradiatedpower(ERP))convertstoMax.Power.For optionC,ERPconvertstoMax.Power; 4.ForoptionB,P th (mW)convertstoExposureLimit(mW);ForoptionC,ERP(W)convertstoExposure Limit(mW). 5.Ratio=Tune-UpERP(mW)/ExposureLimit(mW) ModeforSimultaneousMulti-bandTransmission: RadioAccessTechnologyRatio1Ratio2 Simultaneous Ratio Limit Result Pass/Fail Wi-Fi+SRD0.080.010.091Pass Result:Pass

Project: WIFI antenna Author: Zhu File Name: A02520005004-APP-RA Date: 2023-10-12 TEST: Language: Check: Wang A English Shenzhen Lxc Electronics Technology Co ., Ltd Address: 4 / F, Building C, Jinruihua Industrial Park, No.12 Huafang Road, Dalang Street, Longhua District, Shenzhen - 1 - Shenzhen Lxc Electronics Technology Co ., Ltd APPROVAL SHEET For CE LINK LIMITED BELL-14SC-WT Project A02520005004 Antenna componentst Frequency range WIFI:2400-2500（MHz） VSWR <2.0 Input Impedance 50（Ω） Polarization Vertical Polarization （3dB）HPW 180°H-plane 120°E-plane Antenna type WIFI antenna（Built-in PCB antenna） Antenna gain MAX (dBi) 3.01dBi Antenna supplier Shenzhen Lxc Electronics Technology Co ., Ltd Antenna Model LXC-PCB-088 RF by Checked by ME by Date 2023-10-12 Customer Confirm Project: WIFI antenna Author: Zhu File Name: A02520005004-APP-RA Date: 2023-10-12 TEST: Language: Check: Wang A English Shenzhen Lxc Electronics Technology Co ., Ltd Address: 4 / F, Building C, Jinruihua Industrial Park, No.12 Huafang Road, Dalang Street, Longhua District, Shenzhen - 2 - Revision History Date Revision Description of Changes 2023-10-12 RA Measured with PCB sample. 1 TECHNICAL SUMMARY ......................................................................................... 3 2 GENERAL DESCRIPTION ...................................................................................... 3 2.1 Components/Part revisions ............................................................................................................................. 3 3 MECHANICAL DESCRIPTION ................................................................................ 3 4 ELECTRICAL PERFORMANCE .............................................................................. 3 4.1 Set-up ................................................................................................................................................................ 3 4.1.1 VSWR ........................................................................................................................................................ 3 4.1.2 Gain & Radiation Patterns .......................................................................................................................... 3 5 PLOTS .................................................................................................................... 4 6 MECHANICAL DRAWING ....................................................................................... 6 7 RELIABILITY TESTS ............................................................................................... 7 7.1 Test content ...................................................................................................................................................... 7 7.2 Test results ....................................................................................................................................................... 7 8 CONCLUSION ......................................................................................................... 7 Project: WIFI antenna Author: Zhu File Name: A02520005004-APP-RA Date: 2023-10-12 TEST: Language: Check: Wang A English Shenzhen Lxc Electronics Technology Co ., Ltd Address: 4 / F, Building C, Jinruihua Industrial Park, No.12 Huafang Road, Dalang Street, Longhua District, Shenzhen - 3 - 1 Technical Summary This report summarizes the electrical results of the proposed antenna to support the Built-in WIFI antenna program. We test the antenna with the latest version handset. And it seems to be acceptable. 2 General Description 2.1 Components/Part revisions VSWR: Voltage Standing Wave Rate. 3 Mechanical Description 4 Electrical Performance 4.1 Set-up 4.1.1 VSWR VSWR measurements (S21) were performed using an Agilent 8753D Network Analyzer and the previously described test fixture. Coaxial chokes were used to mitigate surface currents on the outside of the cabling. The testing was performed in free space. 4.1.2 Gain & Radiation Patterns The gain of the antenna was measured in the HUMAN’s anechoic chamber. Coaxial chokes on the feed cable were used to mitigate surface currents. The chamber provides less than –30 dB reflectivity from 800 MHz through 3 GHz and an 18” diameter spherical quite zone. The measurement results are calibrated using both dipole and leaky wave horn standards. Project: WIFI antenna Author: Zhu File Name: A02520005004-APP-RA Date: 2023-10-12 TEST: Language: Check: Wang A English Shenzhen Lxc Electronics Technology Co ., Ltd Address: 4 / F, Building C, Jinruihua Industrial Park, No.12 Huafang Road, Dalang Street, Longhua District, Shenzhen - 4 - 5 Plots 2400-2500（MHz) Project: WIFI antenna Author: Zhu File Name: A02520005004-APP-RA Date: 2023-10-12 TEST: Language: Check: Wang A English Shenzhen Lxc Electronics Technology Co ., Ltd Address: 4 / F, Building C, Jinruihua Industrial Park, No.12 Huafang Road, Dalang Street, Longhua District, Shenzhen - 5 - Project: WIFI antenna Author: Zhu File Name: A02520005004-APP-RA Date: 2023-10-12 TEST: Language: Check: Wang A English Shenzhen Lxc Electronics Technology Co ., Ltd Address: 4 / F, Building C, Jinruihua Industrial Park, No.12 Huafang Road, Dalang Street, Longhua District, Shenzhen - 6 - 6 Mechanical drawing MD Project: WIFI antenna Author: Zhu File Name: A02520005004-APP-RA Date: 2023-10-12 TEST: Language: Check: Wang A English Shenzhen Lxc Electronics Technology Co ., Ltd Address: 4 / F, Building C, Jinruihua Industrial Park, No.12 Huafang Road, Dalang Street, Longhua District, Shenzhen - 7 - 7 Reliability tests 7.1 Test content No Test item Test method Standard of criterion 1 Salt spray test Spray a 5% salt solution 48HR There can be no discoloration, distortion (deformation) fall off and other shortcomings of the corrosion area can not be too large 2 Operational Temperature -40°C～+65°C 3 Storage Temperature -50°C～+85°C 4 Humidity 40%～95% 7.2 Test results NO Sample number Test time Test rsdults Remark 1 50…

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WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 1 of 52 TESTREPORT ReferenceNo.......................:WTX24X05122057W001 FCCID....................................:A4X-L4701 Applicant...............................:CELINKLIMITED Address.................................: 22DongkangRoad,DalingshanTown,DongguanCity,Guangdong Province,China. Manufacturer........................:DongguanCELINKLIMITED Address.................................: 22DongkangRoad,DalingshanTown,DongguanCity,Guangdong Province,China. ProductName ......................: VideoDoorbell ModelNo... ............................: L4701 Standards ..............................: 47CFRFCCPart15.247,SubpartC DateofReceiptsample.....:2024-05-27 DateofTest ...........................: 2024-05-27to2024-06-12 DateofIssue........................:2024-06-12 TestReportFormNo. ......... : WTX_Part15_247W TestResult ............................: Pass Remarks: Theresultsshowninthistestreportreferonlytothesample(s)tested,thistestreportcannotbe reproduced,exceptinfull,withoutpriorwrittenpermissionofthecompany.Thereportwouldbeinvalidwithout specificstampoftestinstituteandthesignaturesofapprover. PreparedBy: WaltekTestingGroup(Shenzhen)Co.,Ltd. Address:1/F.,Room101,Building1,HongweiIndustrialPark,Liuxian2ndRoad, Block70Bao'anDistrict,Shenzhen,Guangdong,China Tel.:+86-755-33663308Fax.:+86-755-33663309Email:[email protected] Testedby:Approvedby: GalaWangJasonSu ReferenceNo.:WTX24X05122057W001 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 2 of 52 TABLEOFCONTENTS 1.GENERALINFORMATION........................................................................................................................................4 1.1PRODUCTDESCRIPTIONFOREQUIPMENTUNDERTEST(EUT)............................................................................4 1.2TESTSTANDARDS.....................................................................................................................................................5 1.3TESTMETHODOLOGY...............................................................................................................................................5 1.4TESTFACILITY..........................................................................................................................................................5 1.5EUTSETUPANDTESTMODE.................................................................................................................................6 1.6MEASUREMENTUNCERTAINTY.................................................................................................................................7 1.7TESTEQUIPMENTLISTANDDETAILS......................................................................................................................8 2.SUMMARYOFTESTRESULTS.............................................................................................................................11 3.ANTENNAREQUIREMENT.....................................................................................................................................12 3.1STANDARDAPPLICABLE.........................................................................................................................................12 3.2EVALUATIONINFORMATION....................................................................................................................................12 4.POWERSPECTRALDENSITY...............................................................................................................................13 4.1STANDARDAPPLICABLE.........................................................................................................................................13 4.2TESTSETUPBLOCKDIAGRAM...............................................................................................................................13 4.3TESTPROCEDURE..................................................................................................................................................13 4.4SUMMARYOFTESTRESULTS/PLOTS....................................................................................................................13 5.DTSBANDWIDTH......................................................................................................................................................14 5.1STANDARDAPPLICABLE.........................................................................................................................................14 5.2TESTSETUPBLOCKDIAGRAM...............................................................................................................................14 5.3TESTPROCEDURE..................................................................................................................................................14 5.4SUMMARYOFTESTRESULTS/PLOTS....................................................................................................................14 6.RFOUTPUTPOWER................................................................................................................................................15 6.1STANDARDAPPLICABLE.........................................................................................................................................15 6.2TESTSETUPBLOCKDIAGRAM...............................................................................................................................15 6.3TESTPROCEDURE..................................................................................................................................................15 6.4SUMMARYOFTESTRESULTS/PLOTS....................................................................................................................15 7.FIELDSTRENGTHOFSPURIOUSEMISSIONS.................................................................................................16 7.1STANDARDAPPLICABLE...........................................…

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ReferenceNo.:WTX24X05122057W001/002Page17of19 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EXHIBIT4-TESTSETUPPHOTOGRAPHS ConductedEmissionTest Setup RadiationEmissionTest Setup(Below30MHz) ReferenceNo.:WTX24X05122057W001/002Page18of19 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn RadiationEmissionTest Setup(30MHzto1GHz) RadiationEmissionTest Setup(1GHzto18GHz) ReferenceNo.:WTX24X05122057W001/002Page19of19 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn RadiationEmissionTest Setup(Above18GHz) *****ENDOFREPORT*****