2BAM3-WXG01Doorbell Manua

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. 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 correct the interference by one or more of the following measures: -Reorient the receiving antenna. -Increase the separation between the equipment and receiver. -Connect the equipment into and outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. Changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment.

C5266091_X23_Ed.1 1/1 US AGENT LETTER OF ATTESTATION US Agent: Company Name: UGK-LVM UNITED INC Contact Name: Jimmy chen Address:6547 N Academy Blvd #2266, Colorado Springs, CO 80918 Telephone No: 001-323-5104660 Fax No: Email:[email protected] FRN: 0033476375 TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 This letter is to confirm that we have accepted the responsibility to act asUS agent representative on behalf of the (Shenzhen Wanxingjun Technology Co., Ltd)noted below for all future FCC certification/registrations obtained during the period of this agreement, which ends at the specified date below. As per US agent, we are aware of the requirements involved as outlined in FCCEquipment Authorization Program in their Report and Order FCC 22-84 and the clause § 2.911 Application requirements. Applicant Company name: Shenzhen Wanxingjun Technology Co., Ltd Grantee code: 2BAM3 FCC ID:2BAM3-WXG01 Contact Name: Kelly LI Address:RM.301,No.33,WananRoad,WanfengCommunity,XinqiaoStreet,Bao'an District,Shenzhen City Telephone No: 15712096085 Fax No:15712096085 Email:[email protected] The Applicant acknowledge the acceptance of its obligation to maintain anagent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Date: 2023-04-16 Applicant’s Name: Kelly LIUS Agent’s Name: Title: ManagerTitle: SignatureSignature FRN：0033564923

Shenzhen Wanxingjun Technology Co., Ltd Model Confirmation Letter We,Shenzhen Wanxingjun Technology Co., Ltd(Company name) Extension model: WXG01 Model no.: WXG02 ， WXG03 ， WXG04 ， WXG05 ， WXG06 ， WXG07 ， WXG08 ， WXG09 ， WXG10 Their electrical circuit design, layout, components used and internal wiring are identical, Only the Item number and color are different. Date:2023/4/18 Job Title (representative):manager Signature: Name: Qing Li

ModelNo.: WXG01

ModelNo.: WXG01

RF Exposureevaluation FCC ID：2BAM3-WXG01 Accordingto 447498D04InterimGeneralRF ExposureGuidancev01 eirp = pt x gt = (EXd) 2 /30 where: pt = transmitter output power in watts, gt = numeric gain of the transmitting antenna (unitless), E = electric field strength in V/m, --- 10 ((dBuV/m)/20) /10 6 d = measurement distance in meters (m)---3m Sopt = (EXd) 2 /30 x gt Ant gain = 2.1 dBi（1.62） [-0.05dBd(0.99) ] Field strength = 68.8 dBμV/m @3m @433.92MHz So Pt={ [10 (68.8 /20) /10 6 x3] 2 /（30x1.62）}x1000 mW =0.0014mW<22mW So ERP=0.0014x0.99=0.001386<22mW Then SAR evaluation is not required

Page 1 of 32 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd. Add:BuildingC,No.107,ShihuanRoad,ShiyanSub-District,BaoanDistrict,Shenzhen,GuangdongProvince,China Tel:+86-755-23059481Email:[email protected] TESTREPORT ProductName: DoorbellManua BrandMark: N/A ModelNo.: WXG01 Extensionmodel: WXG02,WXG03,WXG04,WXG05,WXG06, WXG07,WXG08,WXG09,WXG10 FCCID: 2BAM3-WXG01 ReportNumber: BLA-EMC-202303-A8202 DateofSampleReceipt: 2023/3/30 DateofTest: 2023/3/31to2023/4/17 DateofIssue: 2023/4/17 TestStandard: 47CFRPart15,SubpartC15.231 TestResult:Pass Preparedfor: ShenzhenWanxingjunTechnologyCo.,Ltd RM.301,No.33,WananRoad,WanfengCommunity,XinqiaoStreet,Bao'an District,ShenzhenCity Preparedby: BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd. BuildingC,No.107,ShihuanRoad,ShiyanSub-District,BaoanDistrict, Shenzhen,GuangdongProvince,China TEL:+86-755-23059481 Compiledby:Reviewby: Approvedby:Date:2023/4/17 ReportNo.:BLA-EMC-202303-A8202 Page 2 of 32 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] REPORTREVISERECORD VersionNo.DateDescription 002023/4/17Original ReportNo.:BLA-EMC-202303-A8202 Page 3 of 32 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] TABLEOFCONTENTS 1TESTSUMMARY..............................................................................................................................................5 2GENERALINFORMATION...............................................................................................................................6 3GENERALDESCRIPTIONOFE.U.T................................................................................................................6 4TESTENVIRONMENT......................................................................................................................................7 5TESTMODE......................................................................................................................................................7 6MEASUREMENTUNCERTAINTY....................................................................................................................7 7DESCRIPTIONOFSUPPORTUNIT................................................................................................................8 8LABORATORYLOCATION..............................................................................................................................8 9TESTINSTRUMENTSLIST..............................................................................................................................9 10RADIATEDEMISSIONS................................................................................................................................11 10.1LIMITS......................................................................................................................................................................11 10.2BLOCKDIAGRAMOFTESTSETUP............................................................................................................................12 10.3PROCEDURE.............................................................................................................................................................12 10.1TESTDATA..................................................................................................................................................................13 11FIELDSTRENGTHOFTHEFUNDAMENTALSIGNAL(15.231(B))...........................................................19 11.1LIMITS......................................................................................................................................................................19 11.2BLOCKDIAGRAMOFTESTSETUP............................................................................................................................20 11.3PROCEDURE.............................................................................................................................................................20 11.4TESTDATA..................................................................................................................................................................22 12DWELLTIME(15.231(A)).............................................................................................................................26 12.1LIMITS......................................................................................................................................................................26 12.2BLOCKDIAGRAMOFTESTSETUP............................................................................................................................26 12.3TESTDATA..................................................................................................................................................................27 1320DBBANDWIDTH.......................................................................................................................................28 13.1LIMITS......................................................................................................................................................................28 13.2BLOCKDIAGRAMOFTESTSETUP............................................................................................................................28 13.3TESTDATA..................................................................................................................................................................29 14ANTENNAREQUIREMENT..........................................................................................................................30 14.1CONCLUSION...............................................................................................................................................................30 ReportNo.:BLA-EMC-202303-A8202 Page 4 of 32 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd…

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Productspecification CustomernameShenzhenWanxingjunTechnologyCo.,Ltd RM.301,No.33,WananRoad,WanfengCommunity,Xinqiao Street,Bao'anDistrict,ShenzhenCity Productname433MHzPCBAntenna Productitem Sampledeliverydate ManufcturerRexense AntennamodelRexPCB_14443 1.Technicalindicatorsofproducts FrequencyRange(MHz)421-445 BandWidth(MHz)24 Impedance(Ω） 50 ReturnLoss（dB） -15.6 Gain(dBi)MAX2.1dBi PolarizationLinearVertical AntennaMaterialPCB OperatingTemp（°C） -30~70 StorageTemp（°C） -40~85 2. Productpicture 3.ReturnLoss 4.VSWR 5.Three-dimensionalcoordinates 6.3Dgainpattern 7.E，hplan

ModelNo.: WXG01 RadiatedEmissions