2AXAVTF6002401Digital Borescope

Shenzhen Teslong Technology Co., Ltd. 2nd Floor, Block 4, Jinhuafa Industrial Park, East of Donghuan 2 avenue, Longhua, Shenzhen, China Tel: +86-18566655696 Email: [email protected] D ate: 2024-08-16 F EDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern: Our product Digital Borescope, Model: TF600; FCC ID: 2AXAVTF6002401. For use in America, this product only support 2.4G Wi-Fi (2412-2462MHz, 802.11b/g/n-HT20 mode). The other functions, bands and modes has been shielded by the manufacturer using the software, the end user has no capability to activate it. S incerely, Signature N ame: Richard Ren Title: Manager

CFR 47 §2.911(d)(5)(i) Attestation Letter Shenzhen Teslong Technology Co., Ltd. 2nd Floor, Block 4, Jinhuafa Industrial Park, East of Donghuan 2 avenue, Longhua, Shenzhen, China Tel: +86-18566655696 Email: [email protected] Attestation Letter Date: 2024-08-16 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing F CC ID: 2AXAVTF6002401 Shenzhen Teslong Technology Co., Ltd. certifies that the equipment for which authorization is sought, is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. S incerely, Signature Richard Ren /Manager

CFR 47 §2.911 (d)(5)(ii) Attestation Letter Shenzhen Teslong Technology Co., Ltd. 2nd Floor, Block 4, Jinhuafa Industrial Park, East of Donghuan 2 avenue, Longhua, Shenzhen, China Tel: +86-18566655696 Email: [email protected] Attestation Letter Date: 2024-08-16 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing F CC ID: 2AXAVTF6002401 Shenzhen Teslong Technology Co., Ltd. certifies that as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, Signature R ichard Ren /Manager

U.S. AGENT LETTER OF ATTESTATION Date: 2024-08-16 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing FCC ID: 2AXAVTF6002401 Shen zhen Teslong Technology Co., Ltd. certifies that, as of the date of the filing of the application, ScopeAround Inc. is our designated U.S. agent for service of process for the above referenced FCC ID. Shenzhen Teslong Technology Co., Ltd. accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. ScopeAround Inc. accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. De signated U.S. Agent Information: Name: ScopeAround Inc. Address: 17795 SKY PARK CIR STE G IRVINE CA 92614-6133 California, CA 92614-6133 United States FRN: 0033415290 Tel.: +1 (949) 877-7999 Email: [email protected] Signed by (printed name): George Wang Signature: Applicant: Shenzhen Teslong Technology Co., Ltd. Address: 2nd Floor, Block 4, Jinhuafa Industrial Park, East of Donghuan 2 avenue, Longhua, Shenzhen, China FRN: 0029882032 Tel.: +86-18566655696 Email: [email protected] Signed by (printed name): Richard Ren Signature:

Shenzhen Teslong Technology Co., Ltd. 2nd Floor, Block 4, Jinhuafa Industrial Park, East of Donghuan 2 avenue, Longhua, Shenzhen, China Tel: +86-18566655696 Email: [email protected] QA-FR-170-B 7/29/2014 FCC Authorization Date: 2024-08-16 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization T o whom it may concern: We Shenzhen Teslong Technology Co., Ltd., the undersigned, hereby authorizes World Alliance Testing & Certification (Shenzhen) Co., Ltd to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by World Alliance Testing & Certification (Shenzhen) Co., Ltd on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely, Signature R ichard Ren Title: Manager

Shenzhen Teslong Technology Co., Ltd. 2nd Floor, Block 4, Jinhuafa Industrial Park, East of Donghuan 2 avenue, Longhua, Shenzhen, China Tel: +86-18566655696 Email: [email protected] FCC Confidential Authorization Date: 2024-08-16 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2AXAVTF6002401 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Shenzhen Teslong Technology Co., Ltd. hereby requests long-term confidential treatment of information accompanying this application as outlined below: •B lock Diagram •Schematics •Operation Description T he above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, S ignature Name: Richard Ren Title: Manager

Report No.:RWAO202400004 Page 1 of 9 EUT EXTERNAL PHOTOGRAPHS Report No.:RWAO202400004 Page 2 of 9 Report No.:RWAO202400004 Page 3 of 9 Report No.:RWAO202400004 Page 4 of 9 Report No.:RWAO202400004 Page 5 of 9 Report No.:RWAO202400004 Page 6 of 9 Report No.:RWAO202400004 Page 7 of 9 Report No.:RWAO202400004 Page 8 of 9 Report No.:RWAO202400004 Page 9 of 9

1 4 . 7 1 m m 1.44 mm 16.02 mm 4 9 . 6 2 m m

Report No.: RWAO202400004 Page 1 of 12 EUT INTERNAL PHOTOGRAPHS Report No.: RWAO202400004A Page 2 of 12 Report No.: RWAO202400004A Page 3 of 12 Report No.: RWAO202400004A Page 4 of 12 Report No.: RWAO202400004A Page 5 of 12 ANT Report No.: RWAO202400004A Page 6 of 12 Report No.: RWAO202400004A Page 7 of 12 Report No.: RWAO202400004A Page 8 of 12 Report No.: RWAO202400004A Page 9 of 12 Report No.: RWAO202400004A Page 10 of 12 Report No.: RWAO202400004A Page 11 of 12 Report No.: RWAO202400004A Page 12 of 12

Report No.: RWAO202400004C Report Template: TR-4-E-016/V1.1 Page 1 of 5 RF Exposure Evaluation Report Report No.: RWAO202400004C Applicant: Shenzhen Teslong Technology Co., Ltd. Address: 2nd Floor, Block 4, Jinhuafa Industrial Park, East of Donghuan 2 avenue, Longhua, Shenzhen, China Product Name: Digital Borescope Product Model: TF600 Multiple Models: N/A Trade Mark: N/A FCC ID: 2AXAVTF6002401 Standards: 47 CFR §1.1310 KDB 447498 D01 General RF Exposure Guidance v06 Test Date: 2024-08-09 Test Result: Complied Report Date: 2024-08-12 Reviewed by: Approved by: Abel Chen Project Engineer Jacob Kong Manager Prepared by: World Alliance Testing & Certification (Shenzhen) Co., Ltd No. 1002, East Block, Laobing Building, Xingye Road 3012, Xixiang street, Bao'an District, Shenzhen, Guangdong, People’s Republic of China This report may contain data that are not covered by the NVLAP accreditation and shall be marked with an asterisk “★” Report No.: RWAO202400004C Report Template: TR-4-E-016/V1.1 Page 2 of 5 Announcement 1. This test report shall not be reproduced except in full, without the written approval of World Alliance Testing & Certification (Shenzhen) Co., Ltd 2. The results in this report apply only to the sample tested. 3. This sample tested is in compliance with the limits of the above regulation. 4. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the U.S. Government. 5. The information marked “#” is provided by the applicant, the laboratory is not responsible for its authenticity and this information can affect the validity of the result in the test report. Customer model name, addresses, names, trademarks etc. are included. Revision History Version No. Issued Date Description 00 2024-08-12 Original Report No.: RWAO202400004C Report Template: TR-4-E-016/V1.1 Page 3 of 5 Contents 1 General Information ............................................................................................................................ 4 1.1 Client Information ...................................................................................................................... 4 1.2 Product Description of EUT ....................................................................................................... 4 1.3 Laboratory Location ................................................................................................................... 4 2 RF Exposure Evaluation ..................................................................................................................... 5 2.1 Standard .................................................................................................................................... 5 2.2 Result......................................................................................................................................... 5 Report No.: RWAO202400004C Report Template: TR-4-E-016/V1.1 Page 4 of 5 1 General Information 1.1 Client Information Applicant: Shenzhen Teslong Technology Co., Ltd. Address: 2nd Floor, Block 4, Jinhuafa Industrial Park, East of Donghuan 2 avenue, Longhua, Shenzhen, China Manufacturer: Shenzhen Teslong Technology Co., Ltd. Address: 2nd Floor, Block 4, Jinhuafa Industrial Park, East of Donghuan 2 avenue, Longhua, Shenzhen, China 1.2 Product Description of EUT The EUT is Digital Borescope that contains 2.4G radio. Sample Serial Number 28-2 (assigned by WATC) Sample Received Date 2024-01-05 Sample Status Good Condition Frequency Range 2412MHz - 2462MHz Maximum Conducted Peak Output Power 2412MHz - 2462MHz: 16.24dBm Modulation Technology DSSS, OFDM Antenna Gain # 2.16dBi Spatial Streams SISO (1TX, 1RX) Power Supply DC 3.7V from battery or DC 5~12V from type-C port Adapter Information N/A Modification Sample No Modification by the test lab 1.3 Laboratory Location World Alliance Testing & Certification (Shenzhen) Co., Ltd No. 1002, East Block, Laobing Building, Xingye Road 3012, Xixiang street, Bao'an District, Shenzhen, Guangdong, People’s Republic of China Tel: +86-755-29691511, Email: [email protected] The lab has been recognized as the FCC accredited lab under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 463912, the FCC Designation No. : CN5040. The lab has been recognized by Innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements, the CAB identifier: CN0160. Report No.: RWAO202400004C Report Template: TR-4-E-016/V1.1 Page 5 of 5 2 RF Exposure Evaluation 2.1 Standard According to §1.1310, radio frequency devices shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. According to KDB447498 D01 General RF Exposure Guidance v06: The 1-g 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 • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 5) in section 4.1 is applied to determine SAR test exclusion. 2.2 Result Radio Frequency (MHz) Time-base Average Power including Tune-up Tolerance Min. test separation distance (mm) Result (10-g extremity SAR) Exclusion Limit (10-g extremity SAR) Verdict (dBm) (mW) 2.4G WLAN 2412-2462 13.0 20 0.5 6.28 7.5 Pass Note: The Maximum Conducted Power inclu…

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深圳市顺达成科技有限公司 SHUNDACHENGTECHNOLOGYCO.,LTD 承认书 SPECIFICATIONFORAPPROVAL 审批/Approval客户批准/CustomerApproval 制作 PreparedBy 审核 CheckedBy 批准 ApprovalBy 审核 CheckedBy 批准 ApprovalBy 签章 Signature 黄宗宝夏成磊陈华明 日期 Date 2023.12.142023.12.142023.12.14 修订履历/ChangeLog 版本 Version 修订内容 ChangeDescription 责任人 PersoninCharge 核准 ApprovalBy 日期 Date 客户名称 CustomerName 泰视朗 客户项目名Customer ProjectName NTS700 顺达成项目名 SDCProjectName NTS700 整机信息 顺达成料号 SDCP/N WF580B-1131R-125 频段 Band WIFI2.4G 版本号 Version A0 设计人信息/DesignerInformation 射频工程师 RFEngineer 符学荣 研发主管 R&DDiretor 夏承磊 结构工程师 MEEngineer 黄宗宝 深圳市顺达成科技有限公司 SHUNDACHENGTECHNOLOGYCO.,LTD 目录/Catalogue 序号 No. 项目 Item 页码 PageNo. 1 图纸或实物图片 DrawingorProductImage 2 尺寸测量报告 DimensionsTestReport 3 射频性能测试报告 RFPerformanceTestReport 深圳市顺达成科技有限公司 SHUNDACHENGTECHNOLOGYCO.,LTD 产品图纸或实物图片 DrawingorProductImage 1 S D C V R 5 0 - 2 6 W F 注 ： 6 0 m m 以 内 的 线 材 ， 若 无 客 户 要 求 则 默 认 端 子 头 朝 下 李 瑶 娜 W F 5 8 0 B - 1 1 3 1 R - 1 2 5 N T S 7 0 0 1 1 2 5    手 撕 位 深圳市顺达成科技有限公司 SHUNDACHENGTECHNOLOGYCO.,LTD 样品尺寸测量报告 SampleDimensionsTestReport 测试日期 TestDate 2023.12.14 样品数量 SampleQty. 3 测试人 Inspector 许燕芳 尺寸编号 DimensionNo. 标准 Standard 样品1 Sample1 样品2 Sample2 样品3 Sample3 Pass/NG 20.98±0.2mm212121.1 Pass 27.98±0.2mm282828.1 Pass 0.1±0.03mm0.10.10.1 Pass 125±2mm125126126 Pass 最终结论 Conclusion PASS 测试人&日期 Inspector&Date 许燕芳2023.12.14 批准&日期 Approval&Date 深圳市顺达成科技有限公司 SHUNDACHENGTECHNOLOGYCO.,LTD 射频性能测量报告 RFPerformanceTestReport 天线测试设备简介 AntennaTestEquipmentIntroduction 测试天线输入特性使用AgilentE5071CandAgilent5062A矢量网络分析仪；辐射特性利 用广屏三维近场暗室进行测试，并分别使用8960E5515和AgilentE4438C进行了分析。暗房的测 试坐标如下: TestofantennainputcharacteristicsusingAgilentE5071CandAgilent5062Avectornetwork analyzer;Theradiationpatternoftheantennaaretestedusingtheguangping3DnearfieldAnechoicChamber, andtheinstrumentisusedtoagilent8960E5515andAgilentE4438C.Thetestcoordinatesofthedarkroom areasfollows: 1.S11参数测量/S11Parameter-VSWR 使用一根50Ω同轴电缆连接到天线，然后该电缆连接到网络分析仪测量S11参数，被测量产品远离金属至少 20厘米。 MeasuringMethodisa50Ωcoaxialcableisconnectedtotheantenna.Thenthiscableisconnectedtoanetworkanalyzer tomeasuretheS11parameter,Keepingthisfixtureawayfrommetalatleast20cm. 深圳市顺达成科技有限公司 SHUNDACHENGTECHNOLOGYCO.,LTD S11Parameter-VSWR 2.天线匹配网络/ AntennaMatchingNetwork 3.Gain&Efficiency 频率（MHZ）240024502500 驻波比 1.321.381.76 深圳市顺达成科技有限公司 SHUNDACHENGTECHNOLOGYCO.,LTD 深圳市顺达成科技有限公司 SHUNDACHENGTECHNOLOGYCO.,LTD 深圳市顺达成科技有限公司 SHUNDACHENGTECHNOLOGYCO.,LTD 深圳市顺达成科技有限公司 SHUNDACHENGTECHNOLOGYCO.,LTD 产品ROHS证书

Report No.: RWAO202400004B Report Template: TR-4-E-009/V1.1 Page 1 of 44 FCC Test Report Report No.: RWAO202400004B Applicant: Shenzhen Teslong Technology Co., Ltd. Address: 2nd Floor, Block 4, Jinhuafa Industrial Park, East of Donghuan 2 avenue, Longhua, Shenzhen, China Product Name: Digital Borescope Product Model: TF600 Multiple Models: N/A Trade Mark: N/A FCC ID: 2AXAVTF6002401 Standards: FCC CFR Title 47 Part 15C (§15.247) Test Date: 2024-01-08 to 2024-08-09 Test Result: Complied Report Date: 2024-08-12 Reviewed by: Approved by: Abel Chen Project Engineer Jacob Kong Manager Prepared by: World Alliance Testing & Certification (Shenzhen) Co., Ltd No. 1002, East Block, Laobing Building, Xingye Road 3012, Xixiang street, Bao'an District, Shenzhen, Guangdong, People’s Republic of China This report may contain data that are not covered by the NVLAP accreditation and shall be marked with an asterisk “★” Report No.: RWAO202400004B Report Template: TR-4-E-009/V1.1 Page 2 of 44 Announcement 1. This test report shall not be reproduced except in full, without the written approval of World Alliance Testing & Certification (Shenzhen) Co., Ltd 2. The results in this report apply only to the sample tested. 3. This sample tested is in compliance with the limits of the above regulation. 4. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the U.S. Government. 5. The information marked “#” is provided by the applicant, the laboratory is not responsible for its authenticity and this information can affect the validity of the result in the test report. Customer model name, addresses, names, trademarks etc. are included. Revision History Version No. Issued Date Description 00 2024-08-12 Original Report No.: RWAO202400004B Report Template: TR-4-E-009/V1.1 Page 3 of 44 Contents 1 General Information ............................................................................................................................ 4 1.1 Client Information ...................................................................................................................... 4 1.2 Product Description of EUT ....................................................................................................... 4 1.3 Antenna information .................................................................................................................. 4 1.4 Related Submittal(s)/Grant(s) .................................................................................................... 5 1.5 Measurement Uncertainty ......................................................................................................... 5 1.6 Laboratory Location ................................................................................................................... 5 1.7 Test Methodology ...................................................................................................................... 5 2 Description of Measurement .............................................................................................................. 6 2.1 Test Configuration ...................................................................................................................... 6 2.2 Test Auxiliary Equipment ........................................................................................................... 6 2.3 Interconnecting Cables .............................................................................................................. 7 2.4 Block Diagram of Connection between EUT and AE ................................................................ 7 2.5 Test Setup .................................................................................................................................. 7 2.6 Test Procedure .......................................................................................................................... 9 2.7 Measurement Method............................................................................................................... 11 2.8 Measurement Equipment ......................................................................................................... 11 3 Test Results ....................................................................................................................................... 13 3.1 Test Summary .......................................................................................................................... 13 3.2 Limit ......................................................................................................................................... 14 3.3 AC Line Conducted Emissions Test Data ................................................................................ 15 3.4 Radiated emission Test Data ................................................................................................... 17 3.5 RF Conducted Test Data ......................................................................................................... 32 3.5.1 6dB Emission Bandwidth ............................................................................................. 32 3.5.2 99% Occupied Bandwidth ............................................................................................ 32 3.5.3 Maximum Conducted Peak Output Power ................................................................... 33 3.5.4 Maximum Conducted Average Output Power .............................................................. 33 3.5.5 Power Spectral Density ................................................................................................ 34 3.5.6 100 kHz Bandwidth of Frequency Band Edge ............................................................. 34 3.5.7 Duty Cycle .................................................................................................................... 34 4 Test Setup Photo ...................................…

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Report No.: RWAO202400004 Page 1 of 3 TEST SETUP PHOTOGRAPHS AC Line Conducted Emission Report No.: RWAO202400004 Page 2 of 3 Radiated Emission Below 30MHz 30MHz~1GHz Report No.: RWAO202400004 Page 3 of 3 1GHz~18GHz Above 18GHz