2BS5O-YT100Video Walkie Talkies

Shenzhen Youxuan Zhike Technology Co., Ltd. 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: Shenzhen Youxuan Zhike Technology Co., Ltd. Address: 501, 5th Floor, Building 65, Baotian Industrial Zone, Xixiang, Bao'an District, Shenzhen, China Product Name: Video Walkie Talkies FCC ID: 2BS5O-YT100 Model(s): YT100, YT100X, YT100Y, YT100Z, YT200X, YT200Y, YT200Z, YT300X, YT300Y, YT300Z, YT500X, YT500Y, YT500Z, YT600X, YT600Y, YT600Z, YT800X, YT800Y, YT800Z, YT900X, YT900Y, YT900Z 2.911(d)(5)(i) Equipment Type We, [Shenzhen Youxuan Zhike Technology Co., Ltd.] (“the applicant”) certify that the equipment for which authorization is sought through certification is not:  Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules.  Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Name: DengFeng Tang Date: 2025.11.26 Title and Company name: PM / Shenzhen Youxuan Zhike Technology Co., Ltd. NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Shenzhen Youxuan Zhike Technology Co., Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.2 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Shenzhen Youxuan Zhike Technology Co., Ltd. Address: 501, 5th Floor, Building 65, Baotian Industrial Zone, Xixiang, Bao'an District, Shenzhen, China Product Name: Video Walkie Talkies FCC ID: 2BS5O-YT100 Model(s): YT100, YT100X, YT100Y, YT100Z, YT200X, YT200Y, YT200Z, YT300X, YT300Y, YT300Z, YT500X, YT500Y, YT500Z, YT600X, YT600Y, YT600Z, YT800X, YT800Y, YT800Z, YT900X, YT900Y, YT900Z 2.911(d)(5)(ii) Applicant filing We, [Shenzhen Youxuan Zhike Technology Co., Ltd.] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 , established pursuant to § 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: DengFeng Tang Date: 2025.11.26 Title and Company name: PM / Shenzhen Youxuan Zhike Technology Co., Ltd. NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com Shenzhen Youxuan Zhike Technology Co., Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.2 munications-supply-chain-through-the

Shenzhen Youxuan Zhike Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 [November 26, 2025] U.S. Agent Designation [Shenzhen Youxuan Zhike Technology Co., Ltd.] acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought FCC ID: 2BS5O-YT100 Name and company of U.S. agent: [GLOCERTS TECHNOLOGY INC] Physical U.S. address of agent: [19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507] FRN of U.S. agent: [0036339737] Email address of U.S. agent: [[email protected]] Telephone of U.S.agent: (626) 588-8039 [GLOCERTS TECHNOLOGY INC] acknowledges their obligation to accept service of process on behalf of [Shenzhen Youxuan Zhike Technology Co., Ltd.]. [Shenzhen Youxuan Zhike Technology Co., Ltd.] with the FRN [0037652930] accepts its obligation to maintain an agent for service of process in the United States for no less than 1 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. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Sincerely, Signature Signature [DengFeng Tang] [Huiying Fan] [PM] [Director] [Shenzhen Youxuan Zhike Technology Co., Ltd.] [GLOCERTS TECHNOLOGY INC]

Shenzhen Youxuan Zhike Technology Co., Ltd. Agent Authorization Company: Shenzhen Youxuan Zhike Technology Co., Ltd. Address: 501, 5th Floor, Building 65, Baotian Industrial Zone, Xixiang, Bao'an District, Shenzhen, China Product Name: Video Walkie Talkies Model Number(s): YT100, YT100X, YT100Y, YT100Z, YT200X, YT200Y, YT200Z, YT300X, YT300Y, YT300Z, YT500X, YT500Y, YT500Z, YT600X, YT600Y, YT600Z, YT800X, YT800Y, YT800Z, YT900X, YT900Y, YT900Z Product Description: Video Walkie Talkies We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: November 26, 2025 Name: DengFeng Tang Title: PM Company: Shenzhen Youxuan Zhike Technology Co., Ltd.

Shenzhen Youxuan Zhike Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: November 26, 2025 Subject; Request for Confidentiality FCC ID: 2BS5O-YT100 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuantto KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: DengFeng Tang Title: PM

Shenzhen Youxuan Zhike Technology Co., Ltd. Model Difference Data：November 26, 2025 Product description: Video Walkie Talkies Model name: YT100, YT100X, YT100Y, YT100Z, YT200X, YT200Y, YT200Z, YT300X, YT300Y, YT300Z, YT500X, YT500Y, YT500Z, YT600X, YT600Y, YT600Z, YT800X, YT800Y, YT800Z, YT900X, YT900Y, YT900Z Trade Name: N/A FCC ID: 2BS5O-YT100 All models have the same circuit and RF module, only the names and appearance colors are different. Regards Sincerely Client’s signature : Client’s name / title : DengFeng Tang（PM） Contact information / address：501, 5th Floor, Building 65, Baotian Industrial Zone, Xixiang, Bao'an District, Shenzhen, China

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: YT100 External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 4

FCC ID LABEL: Label Location: FCC ID: 2BS5O-YT100 Model No.: YT100

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: YT100 Internal Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 ANT Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 4

Shenzhen CTB Testing Co., Ltd. FCC ID: 2BS5O-YT100 Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHZ)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: • f(GHZ) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. 2.4GWIFI: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.412 7.207 5.26 7±1 8.00 6.31 <5 1.95983 3.00 YES 2.437 6.445 4.41 6±1 7.00 5.01 <5 1.56480 3.00 YES 2.462 7.93 6.21 7±1 8.00 6.31 <5 1.98004 3.00 YES 2.412 7.168 5.21 7±1 8.00 6.31 <5 1.95983 3.00 YES 2.437 6.377 4.34 6±1 7.00 5.01 <5 1.56480 3.00 YES 2.462 7.741 5.94 7±1 8.00 6.31 <5 1.98004 3.00 YES 2.412 6.68 4.66 6±1 7.00 5.01 <5 1.55675 3.00 YES 2.437 5.999 3.98 5±1 6.00 3.98 <5 1.24296 3.00 YES 2.462 7.272 5.34 7±1 8.00 6.31 <5 1.98004 3.00 YES 802.11b 802.11g 802.11n( HT20) Conclusion: For the max result : 1.98004≤ FCC Limit 3.0 for 1g SAR.

深圳旭航通讯科技有限公司 ShenzhenXuhangCommunication 规格承认书 客户 CUSTOMER 客户料号 CUSTOMERNO. 供方品名 PARTNAME WIFI天线 规格名称 SUPPLIERNO. 客户确认 CUSTOMERAPPROVEDBY 检验 APPROVAL 审核 CHIEF 批准 SUPERVISOR 设计 DESIGN 审核 CHECK 批准 APPROVAL LuoRobertSHANG Date:June18,2025 DIRECTORY NO.ContentsNumber ofPage PageCode 1SpecCover11 2DIRECTORY12 3TestReports13 4MatchingCircuits14 5DRAWING15 6TestData36-9 7 Antennaassemblyposition 110 电性测试报告 TESTREPORTS 频率 Frequency WIFI(2400~2500MHz) 阻抗 Impedance 500hmNominal 驻波比 V.S.W.R ＜2.0 回波损耗 ReturnLoss -10dBMax 辐射 Radiation Omni-directional 增益 Gain(Peak) 2.62dBi 极化方式 Polarization Linear,Vertical 功率 AdmittedPower 1W 连接器 Connector PhysicalProperties 天线材质 AntennaMaterial FPC 线材类型 CableType O.D.1.13mm 工作温度 OperatingTemp. -10-+60°C 存储温度 StorageTemp. -10-+70°C 线材颜色 CableColor Black 匹配电路 MatchingCircuits 匹配电路 Theoriginalmatchingcircuithasnotbeenmodified DRAWING 测试数据 TestData 无源数据 3D方向图 无源驻波 Standingwaveloss 天线安装位置 Antennaassemblyposition

TEST REPORT Compiled by: Reviewed by: Approved by: Zhou Kui Arron Liu Bin Mei / Director Not e: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name: Video Walkie Talkies FCC ID: 2BS5O-YT100 Trademark: N/A Model Number: YT100, YT100X, YT100Y, YT100Z, YT200X, YT200Y, YT200Z, YT300X, YT300Y, YT300Z, YT500X, YT500Y, YT500Z, YT600X, YT600Y, YT600Z, YT800X, YT800Y, YT800Z, YT900X, YT900Y, YT900Z Prepared For: Shenzhen Youxuan Zhike Technology Co., Ltd. Address: 501, 5th Floor, Building 65, Baotian Industrial Zone, Xixiang, Bao'an District, Shenzhen, China Manufacturer: Shenzhen Youxuan Zhike Technology Co., Ltd. Address: 501, 5th Floor, Building 65, Baotian Industrial Zone, Xixiang, Bao'an District, Shenzhen, China Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Oct. 23, 2025 Sample tested Date: Oct. 23, 2025 to Nov. 27, 2025 Issue Date: Nov. 27, 2025 Report No.: CTB25102308502RF01 Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2020 Test Results PASS Remark: This is WIFI-2.4GHz band radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB25102308502RF01 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 55 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ........................................................................................................................................ 3 2. TEST SUMMARY ........................................................................................................................... 4 3. MEASUREMENT UNCERTAINTY ................................................................................................. 5 4. PRODUCT INFORMATION AND TEST SETUP ............................................................................ 6 4.1 Product Information .......................................................................................................................... 6 4.2 Test Setup Configuration .................................................................................................................. 6 4.3 Support Equipment........................................................................................................................... 6 4.4 Channel List ..................................................................................................................................... 6 4.5 Test Mode ........................................................................................................................................ 7 4.6 Test Environment ............................................................................................................................. 7 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................................................... 8 5.1 Test Facility ...................................................................................................................................... 8 5.2 Test Instrument Used ....................................................................................................................... 8 6. AC POWER LINE CONDUCTED EMISSION ................................................................................ 11 6.1 Block Diagram Of Test Setup ......................................................................................................... 11 6.2 Limit ................................................................................................................................................ 11 6.3 Test procedure ............................................................................................................................... 11 6.4 Test Result ..................................................................................................................................... 13 7. RADIATED SPURIOUS EMISSION ............................................................................................. 15 7.1 Block Diagram Of Test Setup ......................................................................................................... 15 7.2 Limit ................................................................................................................................................ 15 7.3 Test procedure ............................................................................................................................... 16 7.4 Test Result ..................................................................................................................................... 17 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS ............................................... 34 8.1 Block Diagram Of Test Setup ......................................................................................................... 34 8.2 Limit ................................................................................................................................................ 34 8.3 Test procedure ............................................................................................................................... 34 8. 4 Test Result ..................................................................................................................................... 35 9. COUDUCTED OUTPUT …

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Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: YT100 Radiated Emission Below 1G Above 1G Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Conducted emissions RF Conducted