2BS4F-B01Wireless HD+ Video Doorbell with Display

FCC Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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 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 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.

Shenzhen Bright Electronic Technology Co., Ltd U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: Baihetian Innovative Solutions FRN: 0033401605 Contact Name: Kenneth Young Street Address: 6837 Chase Rd City/Province/Zip: Dearborn, MI 48126 Telephone No: 313-395-3113 Email: [email protected] This letter is to confirm that we (Baihetian Innovative Solutions) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature: Date: Nov 24, 2025 Signed by (Printed Name/Title): Kenneth Young/Manager The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: Shenzhen Bright Electronic Technology Co., Ltd FRN: 0037651403 Grantee Code: 2BS4F Contact Name: Lei Zhang Street Address: Room 504, Building B9, Yintian Industrial Zone, Yantian Community, Xixiang District, Bao'an City/Province/Zip: Shenzhen, China Telephone No: +8618298211392 Email: [email protected] Applicant Signature: Date:2025-11-24 Signed by (Printed Name/Title): Lei Zhang / Director FCC ID: 2BS4F-B01 Nov 2025

ShenzhenBrightElectronicTechnologyCo.,Ltd Room504,BuildingB9,YintianIndustrialZone,YantianCommunity,XixiangDistrict, Bao'an,Shenzhen,China AttestationStatements NotCoveredEntityApplicant&NotCoveredEquipment To:FederalCommunicationsCommissionDate:Nov.25,25 7435OaklandMillsRoad, Columbia,MD21046,USA Ref:InformationRequiredbySection2.911(d)(5)(i)&(ii) FCCID:2BS4F-B01 ShenzhenBrightElectronicTechnologyCo.,Ltd(“theapplicant”)certifiesthat,asofthedateofthefiling oftheapplication,theapplicantisnotidentifiedontheCoveredList,establishedpursuantto§1.50002 ofreferencechapter,asanentityproducing“covered”communicationequipment.Theequipmentfor whichauthorizationissoughtisnot“covered”telecommunicationsequipmentandvideosurveillance equipmentproducedbyentitiesidentifiedontheCommission’sCoveredListthatprohibitedfrom receivinganequipmentauthorizationpursuanttosection§2.903oftheFCCrules. Sincerelyyours, ApplicantSignature PrintedName:LeiZhang Title:Director Address:Room504,BuildingB9,YintianIndustrialZone,YantianCommunity,Xixiang District,Bao'an,Shenzhen,China Tel.:+8618298211392 Email:[email protected]

ShenzhenBrightElectronicTechnologyCo.,Ltd Room504,BuildingB9,YintianIndustrialZone,YantianCommunity,XixiangDistrict, Bao'an,Shenzhen,China 1|Page AttestationStatements To:FederalCommunicationsCommissionDate:Nov.25,25 7435OaklandMillsRoad, Columbia,MD21046,USA Subject:AttestationofCompliancewithFCCCoveredListSoftwareRequirements FCCID:2BS4F-B01 ProductName:WirelessHD+VideoDoorbellwithDisplay Thisletterservesasanattestationthattheequipmentidentifiedabove☐is/☒isnot(selectone)"covered" softwareasdefinedundertheFederalCommunicationsCommission(FCC)CoveredListrequirements,as outlinedinFCC22-84andKDB986446. Specifically,theundersignedcertifiesthattheequipmentforwhichauthorizationissought: 1.Doesnotcontaincybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab, Inc.oranyofitssuccessors,assignees,parents,subsidiaries,affiliates,oranyentitythathasrebranded orrelabeledsoftwareproducedbytheaforementionedentities. 2.Doesnothavethecapabilitytostore,run,ordeliveranysoftwareidentifiedontheFCCCoveredList, includingbutnotlimitedtocybersecurityandanti-virussoftware. Tosupportthisattestation,theappendixevaluationdocumentationhasbeenpreparedandisincludedinthe certificationfiling. Thisattestationisbasedonathoroughevaluationofthedevice'sdesign,functionality,andsoftware environment.Theundersignedaffirmsthattheinformationprovidedisaccurateandcompletetothebestof theirknowledge. Sincerelyyours, ApplicantSignature PrintedName:LeiZhang Title:Director Address:Room504,BuildingB9,YintianIndustrialZone,YantianCommunity,XixiangDistrict,Bao'an, Shenzhen,China Tel.:+8618298211392 Email:[email protected] ShenzhenBrightElectronicTechnologyCo.,Ltd Room504,BuildingB9,YintianIndustrialZone,YantianCommunity,XixiangDistrict, Bao'an,Shenzhen,China 2|Page EvaluationregardingtotheCoveredListSoftware: Compliance Methodology EvaluationProcessResults Deviceis Inherent compliance ☑ TheChipset(s)usedislimitedtorun theCybersecurityoranti-virus software. Compliance ☑ TheMemoryusedislimitedtorunthe Cybersecurityoranti-virussoftware. Compliance ☑ Thereisstoragecapacitylimitationfor storeorinstalltheCybersecurityor anti-virussoftware. Compliance ☑ Operatingsystemusedislimitedto run,installordelivertheCybersecurity oranti-virussoftware. Compliance Deviceisnot Inherent compliance ☐ EvaluationBasedonSoftware BillofMaterials(SBoM) Seeattached“SBoM“ Note:TheSBoMcontentislimited tothescopeofcoveredlist software(e.g.antivirusand cybersecuritysoftware). ☐ EvaluationBasedonScanfor Softwareonthedevice ☐ EvaluationBasedonFilesystemscan ☐ EvaluationBasedonRunning softwarecheck

Shenzhen Bright Electronic Technology Co., Ltd Room 504, Building B9, Yintian Industrial Zone, Yantian Community, Xixiang District, Bao'an, Shenzhen, China Statement Product: Wireless HD+ Video Doorbell with Display Model: B01 Additional Model: B02, B03, B04, B10, B11, B12, B13, B21, B31, R01, R02, R03, T01, T02 Trademark : N/A FCC ID： 2BS4F-B01 We hereby state that B01 is tested model, other models are derivative models. The models are identical in circuit and PCB layout, only different on the model names. So the test data of B01 can represent the remaining models. Your assistance on this matter is highly appreciated. Yours sincerely, Signature: Date: 20 25/11/24 Name : Lei Zhang CompanyName : ShenzhenBrightElectronicTechnologyCo., Ltd Address: Room504, BuildingB9, YintianIndustrialZone,YantianCommunity,XixiangDistrict, Bao'an,Shenzhen, China Tel / Fax : +8618298211392/N/A E-Mail : [email protected]

ShenzhenBrightElectronicTechnologyCo.,Ltd Room504,BuildingB9,YintianIndustrialZone,YantianCommunity,Xixiang District,Bao'an,Shenzhen,China 11.24.2025 FederalCommunicationsCommission Authorizationand EvaluationDivision 7435 OaklandMills Road Columbia,MD 21046 Subject:ConfidentialityRequestfor:FCCID:2BS4F-B01 Pursuantto Sections0.457 and 0.459 of the Commission’s Rules,we herebyrequestpermanent confidentialtreatmentof the exhibitsaccompanyingthiscertificationapplicationas outlinedbelow:  Block Diagram Schematics  OperationalDescription The above exhibits contain trade secrets and/or proprietary information that are not publicly available and materials that the Applicant has spent considerable efforts in developing. Public disclosure of these may be harmful to the Applicant and give an unfair advantage to competitors on the market. Sincerely, (Signature) PrintedName:Lei Zhang Title: Director Address:Room504, BuildingB9, YintianIndustrialZone, YantianCommunity,XixiangDistrict,Bao'an, Shenzhen, China Tel.: +8618298211392 Email:[email protected]

ShenzhenBrightElectronicTechnologyCo.,Ltd Room504,BuildingB9,YintianIndustrialZone,YantianCommunity,Xixiang District,Bao'an,Shenzhen,China (11.24.2025) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:AgentAuthorizationforFCCID:2BS4F-B01 I,theundersigned,herebyauthorize(SHENZHENTONGCETESTINGLAB)toactonourbehalfinall mattersrelatingtothisapplicationforequipmentcertification. Anyactcarriedoutby(SHENZHENTONGCETESTINGLAB)shallhavethesameeffectasourownand Iacknowledgethatallresponsibilityforcomplyingwiththetermsandconditionsofcertification,as specifiedbyDERYCOMCERTIFICATIONSERVICES,INC.,stillresideswith(ShenzhenBright ElectronicTechnologyCo.,Ltd). WecertifythatwearenotsubjecttoadenialoffederalbenefitsthatincludesFCCbenefitspursuantto Section5301oftheAnti-DrugAbuseActof1988,21U.S.C.§862,andthatnopartytotheapplication,as definedin47CFR§1.2002(b),issubjecttoadenialoffederalbenefitsthatincludesFCCbenefits pursuanttothatsection. Sincerely, (Signature) Name:LeiZhang Title:Director Tel.:+8618298211392 Fax:N/A Email:[email protected]

Report No.: TCT251103E017-B Page 1 of 3 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Appendix- External Photographs of EUT Product: Wireless HD+ Video Doorbell with Display Model: B01 Report No.: TCT251103E017-B Page 2 of 3 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT251103E017-B Page 3 of 3 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com

Label Artwork and Location Model: B01 Label: Size: L*W= 45*15mm Wireless HD+ Video Doorbell with Display Model: B01 FCC ID：2BS4F-B01 Location

Report No.: TCT251103E017-C Page 1 of 5 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Appendix- Internal Photographs of EUT Product: Wireless HD+ Video Doorbell with Display Model: B01 2.4G Antenna Report No.: TCT251103E017-C Page 2 of 5 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT251103E017-C Page 3 of 5 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT251103E017-C Page 4 of 5 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT251103E017-C Page 5 of 5 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID. ............................ : 2BS4F-B01 Test Report No. ............... : TCT251103E018 Date of issue ................... : Nov. 11, 2025 Testing laboratory .......... : SHENZHEN TONGCE TESTING LAB Testing location/ address: 2101 & 2201, Zhenchang Factory, Renshan Industrial Zone, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, 518103, People's Republic of China Applicant's name ............ : Shenzhen Bright Electronic Technology Co., Ltd Address ........................... : Room 504, Building B9, Yintian Industrial Zone, Yantian Community, Xixiang District, Bao'an, Shenzhen, China Manufacturer's name ... : Shenzhen Bright Electronic Technology Co., Ltd Address ........................... : Room 504, Building B9, Yintian Industrial Zone, Yantian Community, Xixiang District, Bao'an, Shenzhen, China Standard(s) ..................... : FCC CFR Title 47 Part 1.1307 Product Name ................. : Wireless HD+ Video Doorbell with Display Trade Mark ...................... : N/A Model/Type reference..... : B01, B02, B03, B04, B10, B11, B12, B13, B21, B31, R01, R02, R03, T01, T02 Rating(s).......................... : Rechargeable Li-ion Battery DC 3.7V Date of receipt of test item ......................................... : Nov. 03, 2025 Date (s) of performance of test ................................... : Nov. 03, 2025 ~ Nov. 11, 2025 Tested by (+signature) ... : Yannie ZHONG Check by (+signature) .... : Beryl ZHAO Approved by (+signature): Tomsin General disclaimer: This report shall not be reproduced except in full, without the written approval of SHENZHEN TONGCE TESTING LAB. This document may be altered or revised by SHENZHEN TONGCE TESTING LAB personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT251103E018 Page 2 of 7 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Table of Contents 1. General Product Information .................................................................. 3 1.1. EUT description ..................................................................................................... 3 1.2. Model(s) list ............................................................................................................ 3 2. General Information ................................................................................. 4 2.1. Test environment and mode ................................................................................. 4 2.2. Description of Support Units ................................................................................ 4 3. Facilities and Accreditations .................................................................. 5 3.1. Facilities ................................................................................................................. 5 3.2. Location ................................................................................................................. 5 4. Limit .......................................................................................................... 6 5. Test Results and Measurement Data ..................................................... 7 Report No.: TCT251103E018 Page 3 of 7 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. General Product Information 1.1. EUT description Product Name ....................... : Wireless HD+ Video Doorbell with Display Model/Type reference........... : B01 Sample Number....................: TCT251103E017-0101 Operation Frequency ........... : 2412MHz~2462MHz Modulation Type ................... : Orthogonal Frequency Division Multiplexing (OFDM) Antenna Type ........................ : FPC Antenna Antenna Gain ........................ : 3.71dBi Rating(s)................................ : Rechargeable Li-ion Battery DC 3.7V Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not responsible for this parameter. 1.2. Model(s) list No. Model No. Tested with 1 B01 Other models B02, B03, B04, B10, B11, B12, B13, B21, B31, R01, R02, R03, T01, T02 Note: B01 is tested model, other models are derivative models. The models are identical in circuit and PCB layout, only different on the model names. So the test data of B01 can represent the remaining models. Report No.: TCT251103E018 Page 4 of 7 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. General Information 2.1. Test environment and mode Item Normal condition Temperature +25ºC Voltage DC 3.7V Humidity 56% Atmospheric Pressure: 1008 mbar Test Mode: Transmitting Mode: Keep the EUT in continuous transmitting by select channel 2.2. Description of Support Units The EUT has been tested as an independent unit together with other necessary accessories or support units. The following support units or accessories were used to form a representative test configuration during the tests. Equipment Model No. Serial No. FCC ID Trade Name / / / / / Note: 1. All the equipment/cables were placed in the worst-case configuration to maximize the emission during the test. 2. Grounding was established in accordance with the manufacturer’s requirements and conditions for the intended use. 3. For conducted measurements (Output Power, 20dB Occupied Bandwidth, Carrier Frequencies Separation, Hopping Channel Number, Dwell Time, Spurious Emissions), the antenna of EUT is connected to the test equipment via temporary antenna connector, the antenna connector is soldered on the antenna port of EUT, and the temporary antenna connector is listed in the Test Instruments. Report No.: TCT251103E018 Page 5 of 7 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. Facilities and Accreditations 3.1. Facilities The test facility is recognized, certified…

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Material Acknowledgment Form customer: Customer Part Number: Supplier: Material Name: SAMPLE DATE: Shenzhen Xudong Digital Technology Co., Ltd Shenzhen Feimin Technology Co., Ltd Supplier Confirmation (with seal) Customer Confirmation (with seal) Note: During batch production, it must be consistent with the sample in the certificate of conformity. In case of any discrepancy, the sample in the certificate of conformity shall prevail! Comfirm Review Approve Approve Review Fictional ANTENNA SPECIFICATION 深圳市飞敏科技有限公司 Shenzhen Feimin Technology Co.,Ltd 2 目录 1. 项目信息Project Information .................................................................................. 4 1.1. 外观尺寸Appearance and Dimensions .......................................................... 4 2. 电气性能 Electrical Characteristics ......................................................................... 5 2.1. 测试环境条件Test Environment Conditions ................................................. 5 2.2. 测示方法Measurement method ..................................................................... 5 2.2.1. 天线电压驻波比Antenna VSWR ............................................................... 5 2.2.2. 天线回波损耗Antenna Return loss ................................................... 6 2.3. 天线无源测试数据 Antenna passive test data ................................. 6 2.3.1. 测试系统Test system ............................................................................... 6 2.3.2天线效率及增益Antenna efficiency and gain .............................. 7 2.3.3.天线辐射方向图Antenna Radiation Pattern ....................................... 7 3.天线装配位置Antenna assembly location ................................................................. 8 4.备注Notes .................................................................................................................... 8 5.产品包装规范Product packaging specification ......................................................... 9 c atalogue ANTENNA SPECIFICATION 深圳市飞敏科技有限公司 Shenzhen Feimin Technology Co.,Ltd 3 Revision history 版本 Version 日期 Date 状态 State A1 2025-6-5 首版First ANTENNA SPECIFICATION 深圳市飞敏科技有限公司 Shenzhen Feimin Technology Co.,Ltd 4 1. 项目信息Project Information 1.1. 外观尺寸Appearance and Dimensions ANTENNA SPECIFICATION 深圳市飞敏科技有限公司 Shenzhen Feimin Technology Co.,Ltd 5 2. 电气性能 Electrical Characteristics 2.1. 测试环境条件Test Environment Conditions 温度Temperature Ordinary Temperature (5 to 35°C) 湿度Humidity Ordinary Humidity (25 to 85% RH) 2.2. 测示方法Measurement method 2.2.1. 天线电压驻波比Antenna VSWR ANTENNA SPECIFICATION 深圳市飞敏科技有限公司 Shenzhen Feimin Technology Co.,Ltd 6 2.2.2. 天线回波损耗Antenna Return loss 2.3. 天线无源测试数据 Antenna passive test data 2.3.1. 测试系统Test system 深圳市飞敏科技有限公司（24探头OTA 微波暗室） ANTENNA SPECIFICATION 深圳市飞敏科技有限公司 Shenzhen Feimin Technology Co.,Ltd 7 2.3.2天线效率及增益Antenna efficiency and gain 2.3.3.天线辐射方向图Antenna Radiation Pattern ANTENNA SPECIFICATION 深圳市飞敏科技有限公司 Shenzhen Feimin Technology Co.,Ltd 8 3.天线装配位置Antenna assembly location 4.备注Notes 1、安装时注意不能离金属部分太近，以避免影响天线性能。 2、此款天线只适用此机型，天线的位置不可以随意改动，若用于其它机器上导致效果变差，与我司无 关。 3、本承认书所使用数据（如：天线效率、增益等）均为本承认项目/天线在深圳市飞敏科技有限公司 实验室测试所得出数据。 1. During installation, be sure not to place it too close to the metal parts to avoid affecting the antenna performance. 2. This antenna is only applicable to this model. The position of the antenna cannot be changed at will. If it is used on other machines, the effect will deteriorate and it is not related to our company. 3. The data used in this acknowledgement (such as antenna efficiency, gain, etc.) are all the data obtained from the testing of this acknowledgement/project/antenna in the laboratory of Shenzhen Feimin Technology Co., Ltd.

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID. ............................ : 2BS4F-B01 Test Report No. ............... : TCT251103E017 Date of issue ................... : Nov. 11, 2025 Testing laboratory .......... : SHENZHEN TONGCE TESTING LAB Testing location/ address: 2101 & 2201, Zhenchang Factory, Renshan Industrial Zone, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, 518103, People's Republic of China Applicant's name ............ : Shenzhen Bright Electronic Technology Co., Ltd Address ........................... : Room 504, Building B9, Yintian Industrial Zone, Yantian Community, Xixiang District, Bao'an, Shenzhen, China Manufacturer's name ... : Shenzhen Bright Electronic Technology Co., Ltd Address ........................... : Room 504, Building B9, Yintian Industrial Zone, Yantian Community, Xixiang District, Bao'an, Shenzhen, China Standard(s) ..................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 FCC KDB 558074 D01 15.247 Meas Guidance v05r02 ANSI C63.10:2020 Product Name ................. : Wireless HD+ Video Doorbell with Display Trade Mark ...................... : N/A Model/Type reference..... : B01, B02, B03, B04, B10, B11, B12, B13, B21, B31, R01, R02, R03, T01, T02 Rating(s).......................... : Rechargeable Li-ion Battery DC 3.7V Date of receipt of test item ......................................... : Nov. 03, 2025 Date (s) of performance of test ................................... : Nov. 03, 2025 ~ Nov. 11, 2025 Tested by (+signature) ... : Yannie ZHONG Check by (+signature) .... : Beryl ZHAO Approved by (+signature): Tomsin General disclaimer: This report shall not be reproduced except in full, without the written approval of SHENZHEN TONGCE TESTING LAB. This document may be altered or revised by SHENZHEN TONGCE TESTING LAB personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT251103E017 Page 2 of 45 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Table of Contents 1. General Product Information .................................................................. 3 1.1. EUT description ..................................................................................................... 3 1.2. Model(s) list ............................................................................................................ 3 1.3. Operation Frequency ............................................................................................ 3 2. Test Result Summary .............................................................................. 4 3. General Information ................................................................................. 5 3.1. Test environment and mode ................................................................................. 5 3.2. Description of Support Units ................................................................................ 5 4. Facilities and Accreditations .................................................................. 6 4.1. Facilities ................................................................................................................. 6 4.2. Location ................................................................................................................. 6 5. Measurement Uncertainty ....................................................................... 6 6. Test Results and Measurement Data ..................................................... 7 6.1. Antenna requirement ............................................................................................ 7 6.2. Conducted Emission ............................................................................................. 8 6.3. Maximum Conducted (Peak) Output Power ...................................................... 12 6.4. Emission Bandwidth ........................................................................................... 13 6.5. Power Spectral Density ....................................................................................... 14 6.6. Conducted Band Edge and Spurious Emission Measurement ....................... 15 6.7. Radiated Spurious Emission Measurement ...................................................... 17 Appendix A: Test Result of Conducted Test Appendix B: Photographs of Test Setup Appendix C: Photographs of EUT Report No.: TCT251103E017 Page 3 of 45 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. General Product Information 1.1. EUT description Product Name ....................... : Wireless HD+ Video Doorbell with Display Model/Type reference........... : B01 Sample Number....................: TCT251103E017-0101 Operation Frequency ........... : 2412MHz~2462MHz Channel Separation ............. : 5MHz Modulation Technology ....... : Orthogonal Frequency Division Multiplexing (OFDM) Antenna Type ........................ : FPC Antenna Antenna Gain ........................ : 3.71dBi Rating(s)................................ : Rechargeable Li-ion Battery DC 3.7V Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not responsible for this parameter. 1.2. Model(s) list No. Model No. Tested with 1 B01 Other models B02, B03, B04, B10, B11, B12, B13, B21, B31, R01, R02, R03, T01, T02 Note: B01 is tested model, other models are derivative models. The models are identical in circuit and PCB layout, only different on the model names. So the test data of B01 can represent the remaining models. 1.3. Operation Frequency Channel Frequency Channel Frequency Channel Frequency Channel Frequency 1 2412MHz 4 2427MHz 7 2442MHz 10 2457MHz 2 2417MHz 5 2432MHz 8 2447MHz 11 2462MHz 3 2422MHz 6 2437MHz 9 2452MHz -- -- Note: In section 15.31(m), regards to the operating frequency range over 10 MHz, the Lowest fr…

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Report No.: TCT251103E017-A Page 1 of 2 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Appendix- Photographs of Test Setup Product: Wireless HD+ Video Doorbell with Display Model: B01 Radiated Emission Report No.: TCT251103E017-A Page 2 of 2 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Conducted Emission