K7SAUC018SoundForm Dot ANC Earbuds, SoundForm Dot Earbuds

Belkin International, Inc. Covered Equipment Certification Attestation Letter 5/9/2026 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: K7SAUC018 Belkin International, Inc. (“the applicant”) 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. Belkin International, Inc. (“the applicant”) 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. Belkin International, Inc. (“the applicant”) certifies that the equipment for which authorization issought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity oranti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Signed: Printed name: Rossi Wu Title: Senior Regulatory Compliance Engineer Company Name: Belkin International, Inc Date: 5/9/2026

Belkin International, Inc. * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter May 9, 2026 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: K7SAUC018 Per section 2.911(d)(7) of the FCC rules, Belkin International, Inc. (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. Designated agent* for service of process: Company Name: Belkin International, Inc. Physical U.S. Company Address: 555 S. Aviation Blvd., Suite 180, El Segundo, CA 90245, USA Agent name: Jay Tu Agent Email Address: [email protected] FRN: 0008128605 The above contact person accepts the obligation for service of process. The applicant 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. Applicant Signed: Designated Agent Signed: (Required, if different to Applicant): Signed: Signed: Printed name: Rossi Wu Printed name: Rossi Wu Title: Senior Regulatory Compliance Engineer Title: Senior Regulatory Compliance Engineer Company Name: Belkin International, Inc. Company Name: Belkin International, Inc. Date: May 9, 2026 Date: May 9, 2026 FRN Code: 0008128605 FRN Code: 0008128605

Belkin International, Inc. 5/9/2026 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 AUTHORITY TO ACT AS AGENT - FCC On our behalf, I appoint Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch and No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in FCC regulations will have affixed to it a label identical to that submitted for approval with this application. In signing this letter, Applicant certifies that neither the applicant nor any party to the application is not subject to a denial of Federal benefits, that include FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. § 862 because of a conviction for possession or distribution of a controlled substance. See 47 CFR 1.2002(b) for the definition of a "party" for these purposes. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, as specified by Nemko North America Inc., still resides still resides with us. Sincerely, Printed name: Rossi Wu Title: Senior Regulatory Compliance Engineer

Declaration of Identical for Product Company: Belkin International, Inc. The product Name: SoundForm Dot ANC Earbuds The additional product name : SoundForm Dot Earbuds Model: AUC018,AUC019 FCC ID: K7SAUC018 IC: 3623A-AUC018 The Model difference are as below description • The plate and frame of the right and left earbuds are mirror images, and there are subtle differences in the layout of components • They are use the same Antenna Type with different Gain. Right earbuds with 1.27dBi Gain and left earbuds with -1.14dBi gain • They are identically with same RF chip, BOM and cannot be sold separately, so apply the same one FCC ID,IC ID and MIC ID • Each model have 4 different colors and all other designs all same except for colors Date: 2026-05-09 Authorized Signature

Power of Attorney Date: Jan. 10, 2022 To whom it may concern: I, the undersigned, Jay Tu, hereby authorize the person listed below to act in behalf of me to sign all related documents for Belkin International, Inc.’s FCC/IC application. Name: Zack Vogel / Regulatory Compliance Engineer, Regulatory Compliance Tel: +1 800-223-5546 E-mail: [email protected] Name: Andrei Moldavanov / Regulatory Compliance Engineer, Regulatory Compliance E-mail: [email protected] Name: Rossi Wu / Senior Regulatory Compliance Engineer, Regulatory Compliance Tel: +1 310 633 9309 # 2960 E-mail: [email protected] Name: Daisy Dai / Regulatory Compliance Engineer, Regulatory Compliance Tel: O +86 755 2387 1039 E-mail: [email protected] Respectfully, Applicant’s company name: Belkin International, Inc. Applicant’s company address: 555 S. Aviation Blvd., Suite 180, El Segundo, CA 90245-4852, USA Signature Name and Job Title: Jay Tu / Manager, Regulatory Compliance

Belkin International, Inc. May 9, 2026 Nemko North America, Inc. 303 River Road Ottawa, Ontario, Canada K1V 1H2 REQUEST FOR CONFIDENTIALITY - FCC FCC ID: K7SAUC018 Pursuant to Sections 0.457(d) and 0.459 of the Commission’s Rules and FCC Guidance document 726920, we hereby request permanent confidential treatment of exhibits identified as such in the table below and request they are permanently withheld from public review based on the documents containing trade secrets and proprietary information not customarily released to the public. The public disclosure of this information might be harmful to the applicant and provide unjustified benefits to its competitors. We also request short-term confidentiality on certain exhibits until the intended date of marketing as outlined below. We request the exhibits be withheld from public view for a period 180 days. We attest marketing of the product will only commence after the period of short-term confidentiality expires, or if marketing is to commence before the requested number of days listed above, the grantee will inform Nemko to release the Short-Term Confidentiality information withheld on the FCC equipment authorization website. Exhibit Type of Confidentiality Requested Block Diagrams ☒ Permanent ☐ Short Term External Photos ------------------ ☒ Short Term Internal Photos ☐ Permanent* ☒ Short Term Operation Description ☒ Permanent ☐ Short Term Parts List & Placement/BOM ☐ Permanent ☐ Short Term Tune-Up Procedure ☐ Permanent ☐ Short Term Schematic Diagrams ☒ Permanent ☐ Short Term Test Setup Photos ------------------ ☒ Short Term User’s Manual ☐ Permanent* ☒ Short Term The asterisked items (*) require further information to be provided in this justification letter before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 D01 found at: https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731 and review section II, 3) regarding specific information that must accompany these requests. Note: any documents held under the Short-Term confidentiality will automatically become public after the requested time if an appropriate extension request has not been received. Any exhibits (i.e., schematic diagrams) that may have already been requested to have “Permanent” confidentiality as shown above need not be repeated under Short-Term confidentiality request. Sincerely, Signed: Printed name: Rossi Wu Title: Senior Regulatory Compliance Engineer Company Name: Belkin International, Inc.

Label and Label location the label located at the bottom of the product

Label and Label location the label located at the bottom of the product

Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 1 of 6 Report Version 1 Test Report No.: FM2603WDG0421 RF EXPOSURE REPORT Applicant Belkin International, Inc. Address 555 S. Aviation Blvd., Suite 180, El Segundo, CA 90245, USA Manufacturer or Supplier Belkin International, Inc. Address 555 S. Aviation Blvd., Suite 180, El Segundo, CA 90245, USA Product SoundForm™ Dot ANC Earbuds Additional Product SoundForm™ Dot Earbuds Brand Name belkin Model AUC018 Additional Model & Model Difference AUC019, See section 1 Date of tests Apr. 20, 2026 ~ Apr. 30, 2026 FCC Part 2 (Section 2.1093) KDB 447498 D01 V06 IEEE C95.1 CONCLUSION: The submitted sample was found to COMPLY with the test requirement Prepared by Eric Fang Project Engineer / EMC Department Approved by Glyn He Assistant Manager / EMC Department Date: Jun. 03, 2026 This report is governed by, and incorporates by reference, the Conditions of Testing as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our-business/cps/about-us/terms-conditions/ and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. Statements of conformity are based on simple acceptance criteria without taking measurement uncertainty into account, unless otherwise requested in writing. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 2 of 6 Report Version 1 Test Report No.: FM2603WDG0421 TABLE OF CONTENTS RELEASE CONTROL RECORD ................................................................................ 3 1. CERTIFICATION .............................................................................................. 4 2. RF EXPOSURE DEFINE ................................................................................. 5 3. CLASSIFICATION ........................................................................................... 5 4. CALCULATED RESULT OF MAXIMUM CONDUCTED POWER .................... 6 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 3 of 6 Report Version 1 Test Report No.: FM2603WDG0421 RELEASE CONTROL RECORD ISSUE NO. REASON FOR CHANGE DATE ISSUED FM2603WDG0421 Original release Jun. 03, 2026 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 4 of 6 Report Version 1 Test Report No.: FM2603WDG0421 1. CERTIFICATION Additional model AUC019 is identical with test model AUC018 except the difference as follows: Product Name Model No. Difference SoundForm™ Dot ANC Earbuds AUC018 Front cavity vent hole, with ANC function SoundForm™ Dot Earbuds AUC019 No front cavity vent hole, without ANC function Remark: Based on the difference of above, picked up the AUC018 for all test. FCC ID: K7SAUC018 PRODUCT: SoundForm™ Dot ANC Earbuds ADDITIONALPRODUCT: SoundForm™ Dot Earbuds BRAND NAME: belkin MODEL NO.: AUC018 ADDITIONAL NO.: AUC019 APPLICANT: Belkin International, Inc. STANDARDS: FCC Part 2 (Section 2.1093) KDB 447498 D01 V06 IEEE C95.1 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 5 of 6 Report Version 1 Test Report No.: FM2603WDG0421 2. RF EXPOSURE DEFINE The corresponding SAR Exclusion Threshold condition, listed below: 1) 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,16 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 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 dis…

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1 美恩微 样品承认书 PartsApproval Sheet 生产供应商： Supplier 适用项目： A74 Type/Spec 品牌： Brand 送样日期： 2026/04/18 SendoutDate 承认日期： ApproveDate 物料名称： BT-L 天线 PartsName NQI 规格 :FPC 镀金 \ 左耳机蓝牙天线 12.5*10.33*0.15mm\ME-A74-BT-L-FB-V8ROHS PartsNo 客户料号： Quantity 文件编号： NQI-RD-SPEC-20260414 DocumentNo 样品版本： V8 Version SupplierCustomer Approved By Prepared By Engineering Dept Quality Dept 公司名称: 深圳市美恩微电子有限公司 Company name: Mavēn Electronics Co., LTD 地址 : 深圳市龙岗区坂田街道岗头社区天安云谷产业园二期4栋8层801-805 Address: Room 801-805, 8/F, Building 4, Phase 2, Tian'an Cloud Valley Industrial Park Gangtou Community, Bantian Sub-district, Longgang District, Shenzhen 2 承认书履历表 （Resume） 日期 （Date） 天线版本 （Versins） 变更原因 （Reasonsforchange） 变更内容 （Contentofchange） 备注 （Note） 2026.04.18V8首版发行 3 目录(contents) 一 . 样品及说明 （Samplepictureanddescription）..........................................................4 二 . 测试设备及项目 （Testequipmentanditems）...................................................4-5 三 . 暗室连接及坐标 （Chamberconnectionandcoordinates）.........................................6 四 . 天线匹配网络 （Antennamatchingnetwork）..........................................................6 五 . 天线电性能测试数据 （ElectricalperfornancetestData）.....................................7-8 六.天线结构图纸（Antennastructuredrawing）.........................................................9 七.重点尺寸检验报告（Keydimensioninspectionreport）............................................10 八 . 天线包装图纸 (Antennapackagingdrawing)...........................................................11 九.环境及可靠性试验(Environmentalandreliabilitytesting)......................................12-13 4 一 . 样品图片及说明 （Samplepictureanddescription） ： 二.试设备及项目（Testequipmentanditems）： 类别（Class）测试项目（Testitem）设备（Equipment） 1.Sparameter 1.回波损耗(RL) 2.驻波比（VSWR） 3.斯密斯原图（Smithchart） 网分（VNA）:AgilentE5071B R&S ZVB8 ProtekA333 2.耦合测试（ 1.发射功率（MAXPower）1.2G/3GTester：Agilent8960 电气参数说明（ElectricalSpecifications） 频率范围（Frequencyrange）（2400-2500)MHz 特性阻抗（impedance）50ohm 电压驻波比 （VSWR） ≤ 4.5 峰值增益 （Gain）-1.14DBi 极化形式（Polarization）线性 辐射方向 （Radiationdirection） 全向 连接方式说明 （ConnectionModeDescription） 连接器 （connector）/ 线缆规格 （Cablespecifications）/ 工作 / 储存温度 （Working/Storagetemperature） 工作温度（Workingtemperature）-30°C～65°C 储存温度（Storagetemperature）-30°C～75°C 5 Coupling testing） 2.接收灵敏度（MINSens） 2.Thecouplingbox：TESCOMTC-5060A 3.3DChamber：ETS3DChamber（5x3x3） 3.3D无源测试 （PassiveTest） 1.效率（Effeciency） 2.增益（Gain） 3.辐射方向图 （R adiationpattern） 1.3DChamber：TEM243DChamber（5x5x5） ETS3DChamber（5x3x3） 2.网分（VNA）：AgilentE5071B R&S ZVB8 4.3D有源测试 （ActiveTest） 1.3D功率（TRP） 2.3D灵敏度（TIS） 3.吞吐率（Throughputrate） 1.3DChamber：TEM243DChamber（5x5x5） ETS3DChamber（5x3x3） 2.2G/3GTester:Agilent8960 3.4GTester：MT8820C/CMW500 4.WIFI/BT/NB-iotTester：CMW500 5.5GTester：SP9500-CTS 6.Head： HEAD-P10（FACE-P10） 6 三 . 暗室连接及坐标 （Chamber connection and coordinates） ： 四 . 天线匹配网络 （Antenna matching network） ： 4.1环境处理 N/A 7 五 . 天线电气性能及测试数据 （ElectricalperfornancetestData） ： 5.1. 回波损耗 / 驻波比 / 斯密斯图 （RL/VSWR/SmithChat） 5.2.增益及效率 （Gain/RadiationEfficiency） 自由空间 Frequency （MHz） Efficiency （%） Gain（dBi） 2400 17.42-1.88 2410 17.7-2.25 2420 19.95-2.32 2430 19.59-2.38 2440 20.89-2.11 2450 21.23-1.14 2460 21.38-1.62 2470 22.23-1.63 2480 22.59-1.72 2490 24.83-1.96 2500 24.15-1.81 8 5.3.3DRadiationpattern 自由空间 5.4.TRP&TISOTAData TestBluetoothTRP&TIS自由空间测试 Result03978 TRP(dBm)2.582.622.21 TIS(dBm)-86.12-85.1-86.67 9 六、天线结构图纸 （Antennastructuredrawing） 10 七重点尺寸检验报告 （Keydimensioninspectionreport） ： 尺寸检验报告 客户美恩微项目A74 材质 FPC 环保材料非环保材料 外观检查项目 □漏漆□断线□短路□划伤□脏污□开裂 不良数： 0 轻微严重致命 外观判定结果：合格不合格 功能或尺寸检查记录 NO检查序号尺寸公差 检查结果 检测仪器判定 12345 FPC 112.50±0.2012.5112.5012.5412.5212.53DNOK 210.33±0.2010.3510.3310.3410.3210.35DNOK 总体判定：合格不合格 不合格处理方式：返工特采使用 计量仪器代号说明：投影仪-PP塞规-PG高度规-HG角度规-AG游标卡尺-N数显卡尺-DN 外径千分尺-M 其它测试手段代码：三座标-3D螺纹规-SG专用治具-SE目视-E 备注： 测定人 11 八．天线包装图纸 (Antennapackagingdrawing) 12 九．环境及可靠性试验 (Environmentalandreliabilitytesting) 9.1. 盐雾测试报告 (Saltspraytestreport) 13 9.2. 低温储存试验 (Lowtemperaturestoragetest)

1 美恩微 样品承认书 Parts Approval Sheet 生产供应商： Supplier 适用项目： A74 Type/Spec 品牌： NQI Brand 送样日期： 2026/04/18 SendoutDate 承认日期： ApproveDate 物料名称： BT-R 天线 PartsName NQI 规格 :FPC 镀金 \ 左耳机蓝牙天线 12.5*10.33*0.15mm\ME-A74-BT-R-FB-V8ROHS PartsNo 客户料号： Quantity 文件编号： NQI-RD-SPEC-20260415 DocumentNo 样品版本： V8 Version SupplierCusto mer Approved ByPrepared By En gineering Dept Qu ality Dept 公司名称 : 深圳市美恩微电子有限公司 Company name: Mavēn Electronics Co., LTD 地址: 深圳市龙岗区坂田街道岗头社区天安云谷产业园二期4栋8层801-805 Address: Room 801-805, 8/F, Building 4, Phase 2, Tian'an Cloud Valley Industrial Park Gangtou Community, Bantian Sub-district, Longgang District, Shenzhen 2 承认书履历表 （Resume） 日期 （Date） 天线版本 （Versins） 变更原因 （Reasonsforchange） 变更内容 （Contentofchange） 备注 （Note） 2026.04.18V8首版发行 3 目录(contents) 一 . 样品及说明 （Samplepictureanddescription）..........................................................4 二 . 测试设备及项目 （Testequipmentanditems）...................................................4-5 三 . 暗室连接及坐标 （Chamberconnectionandcoordinates）.........................................6 四 . 天线匹配网络 （Antennamatchingnetwork）..........................................................6 五 . 天线电性能测试数据 （ElectricalperfornancetestData）.....................................7-8 六.天线结构图纸（Antennastructuredrawing）.........................................................9 七.重点尺寸检验报告（Keydimensioninspectionreport）............................................10 八 . 天线包装图纸 (Antennapackagingdrawing)...........................................................11 九.环境及可靠性试验(Environmentalandreliabilitytesting)......................................12-13 4 一 . 样品图片及说明 （Samplepictureanddescription） ： 二.试设备及项目（Testequipmentanditems）： 类别（Class）测试项目（Testitem）设备（Equipment） 1.Sparameter 1.回波损耗(RL) 2.驻波比（VSWR） 3.斯密斯原图（Smithchart） 网分（VNA）:AgilentE5071B R&S ZVB8 ProtekA333 2.耦合测试（ Coupling 1.发射功率（MAXPower） 2.接收灵敏度（MINSens） 1.2G/3GTester：Agilent8960 电气参数说明（ElectricalSpecifications） 频率范围（Frequencyrange）（2400-2500)MHz 特性阻抗（impedance）50ohm 电压驻波比 （VSWR） ≤ 4.6 峰值增益 （Gain）1.27DBi 极化形式（Polarization）线性 辐射方向 （Radiationdirection） 全向 连接方式说明 （ConnectionModeDescription） 连接器 （connector）/ 线缆规格 （Cablespecifications）/ 工作 / 储存温度 （Working/Storagetemperature） 工作温度（Workingtemperature）-30°C～65°C 储存温度（Storagetemperature）-30°C～75°C 5 testing） 2.Thecouplingbox：TESCOMTC-5060A 3.3DChamber：ETS3DChamber（5x3x3） 3.3D无源测试 （PassiveTest） 1.效率（Effeciency） 2.增益（Gain） 3.辐射方向图 （R adiationpattern） 1.3DChamber：TEM243DChamber（5x5x5） ETS3DChamber（5x3x3） 2.网分（VNA）：AgilentE5071B R&S ZVB8 4.3D有源测试 （ActiveTest） 1.3D功率（TRP） 2.3D灵敏度（TIS） 3.吞吐率（Throughputrate） 1.3DChamber：TEM243DChamber（5x5x5） ETS3DChamber（5x3x3） 2.2G/3GTester:Agilent8960 3.4GTester：MT8820C/CMW500 4.WIFI/BT/NB-iotTester：CMW500 5.5GTester：SP9500-CTS 6.Head： HEAD-P10（FACE-P10） 6 三 . 暗室连接及坐标 （Chamber connection and coordinates） ： 四 . 天线匹配网络 （Antenna matching network） ： 4.1环境处理 N/A 7 五 . 天线电气性能及测试数据 （ElectricalperfornancetestData） ： 5.1. 回波损耗 / 驻波比 / 斯密斯图 （RL/VSWR/SmithChat） 5.2.增益及效率（Gain/RadiationEfficiency） 自由空间 Frequency （MHz） Efficiency （%） Gain（dBi） 2400 17.02-1.03 2410 17.26-1.11 2420 19.05-0.52 2430 19.91-0.57 2440 21.43-0.39 2450 22.65-0.12 2460 24.55-0.13 2470 25.531.27 2480 24.89-0.12 2490 25.760.14 2500 25.82-0.19 8 5.3.3DRadiationpattern 自由空间 5.4.TRP&TISOTAData TestBluetoothTRP&TIS自由空间测试 Result03978 TRP(dBm)2.542.331.97 TIS(dBm)-85.55-85.21-85.27 9 六、天线结构图纸 （Antennastructuredrawing） 七重点尺寸检验报告 （Keydimensioninspectionreport） ： 尺寸检验报告 客户美恩微项目A74 材质 FPC 环保材料非环保材料 外观检查项目 □漏漆□断线□短路□划伤□脏污□开裂 不良数： 0 轻微严重致命 外观判定结果：合格不合格 功能或尺寸检查记录 NO检查序号尺寸公差 检查结果 检测仪器判定 12345 FPC 112.50±0.2012.5212.5012.5412.5212.53DNOK 210.33±0.2010.3510.3310.3510.3210.34DNOK 总体判定：合格不合格 不合格处理方式：返工特采使用 计量仪器代号说明：投影仪-PP塞规-PG高度规-HG角度规-AG游标卡尺-N数显卡尺-DN 外径千分尺-M 其它测试手段代码：三座标-3D螺纹规-SG专用治具-SE目视-E 备注： 测定人 11 八．天线包装图纸 (Antennapackagingdrawing) 12 九．环境及可靠性试验 (Environmentalandreliabilitytesting) 9.1. 盐雾测试报告 (Saltspraytestreport) 13 9.2. 低温储存试验 (Lowtemperaturestoragetest)

Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 1 of 61 Report Version A Test Report No.: RF2603WDG0421-2 TEST REPORT Applicant Belkin International, Inc. Address 555 S. Aviation Blvd., Suite 180, El Segundo, CA 90245, USA Manufacturer or Supplier Belkin International, Inc. Address 555 S. Aviation Blvd., Suite 180, El Segundo, CA 90245, USA Product SoundForm™ Dot ANC Earbuds Additional Product SoundForm™ Dot Earbuds Brand Name belkin Model AUC018 Additional Model & Model Difference AUC019, See section 3.1 Date of tests Apr. 20, 2026 ~ Apr. 30, 2026 The tests have been carried out according to the requirements of the following standard: FCC Part 15, Subpart C, Section 15.247 CONCLUSION: The submitted sample was found to COMPLY with the test requirement Prepared by Eric Fang Project Engineer / EMC Department Approved by Glyn He Assistant Manager / EMC Department Date: Jun. 03, 2026 This report is governed by, and incorporates by reference, the Conditions of Testing as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our-business/cps/about-us/terms-conditions/ and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. Statements of conformity are based on simple acceptance criteria without taking measurement uncertainty into account, unless otherwise requested in writing. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 2 of 61 Report Version A Test Report No.: RF2603WDG0421-2 TABLE OF CONTENTS RELEASE CONTROL RECORD ............................................................................................................ 4 1 SUMMARY OF TEST RESULTS .................................................................................................... 5 2 MEASUREMENT UNCERTAINTY ................................................................................................. 5 3 GENERAL INFORMATION ............................................................................................................ 6 3.1 GENERAL DESCRIPTION OF EUT ...................................................................................... 6 3.2 DESCRIPTION OF TEST MODES ........................................................................................ 7 3.2.1 CONFIGURATION OF SYSTEM UNDER TEST ............................................................... 7 3.2.2 TEST MODE APPLICABILITY AND TESTED CHANNEL DETAIL .................................... 7 3.3 GENERAL DESCRIPTION OF APPLIED STANDARDS ....................................................... 9 3.4 DESCRIPTION OF SUPPORT UNITS .................................................................................. 9 3.5 CONFIGURATION OF SYSTEM UNDER TEST ................................................................. 10 3.6 DUTY CYCLE OF TESET SIGNAL ....................................................................................... 11 4 TEST TYPES AND RESULTS ...................................................................................................... 12 4.1 RADIATED EMISSION MEASUREMENT ........................................................................... 12 4.1.1 LIMITS OF RADIATED EMISSION MEASUREMENT .................................................... 12 4.1.2 TEST INSTRUMENTS ..................................................................................................... 13 4.1.3 TEST PROCEDURES ..................................................................................................... 14 4.1.4 DEVIATION FROM TEST STANDARD ........................................................................... 15 4.1.5 TEST SETUP ................................................................................................................... 15 4.1.6 EUT OPERATING CONDITIONS .................................................................................... 16 4.1.7 TEST RESULTS .............................................................................................................. 17 4.2 6DB BANDWIDTH MEASUREMENT .................................................................................. 39 4.2.1 LIMITS OF 6DB BANDWIDTH MEASUREMENT ........................................................... 39 4.2.2 TEST INSTRUMENTS ..................................................................................................... 39 4.2.3 TEST PROCEDURE ................................................…

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Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 1 of 4 Report Version A Reference No.: 2603WDG0421 SET-UP FOR RADIATED EMISSION TEST Frequency Range< 30MHz~1GHz > Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 2 of 4 Report Version A Reference No.: 2603WDG0421 Frequency Range< Above 1GHz > Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 3 of 4 Report Version A Reference No.: 2603WDG0421 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Gu…

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