2A7JZ-2504Hearing aid

Xiamen Vienatone Medical Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 [November 7, 2025] U.S. Agent Designation [Xiamen Vienatone Medical 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: 2A7JZ-2504 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 [Xiamen Vienatone Medical Technology Co., Ltd.]. [Xiamen Vienatone Medical Technology Co., Ltd.] with the FRN [0032570566] 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 [Ying Huang] [Huiying Fan] [Manager] [Director] [Xiamen Vienatone Medical Technology Co., Ltd.] [GLOCERTS TECHNOLOGY INC]

Xiamen Vienatone Medical Technology Co., Ltd. (October 30, 2025) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID:2A7JZ-2504 [Xiamen Vienatone Medical Technology Co., Ltd.] (“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. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, (Applicant signature) (Applicant printed name)Ying Huang Xiamen Vienatone Medical Technology Co., Ltd. (October 30, 2025) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for FCC ID:2A7JZ-2504 [Xiamen Vienatone Medical Technology Co., Ltd.] (“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. Sincerely, (Applicant signature) (Applicant printed name)Ying Huang

Xiamen Vienatone Medical Technology Co., Ltd. (October 30, 2025) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Hearing aid / ion Pro 2 / FCC ID: 2A7JZ- 2504 ) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature: Name: Ying Huang Title: Manager

Xiamen Vienatone Medical Technology Co., Ltd. (October 30, 2025) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature: Name: Ying Huang Title: Manager

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 7 Model: ion Pro 2 External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 7 Right Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 7 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 7 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 5 of 7 Left Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 6 of 7 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 7 of 7

FCC ID LABEL: Label Location: FCC ID: 2A7JZ-2504 Model No.: ion Pro 2

Shenzhen CTB Testing Co., Ltd. FCC ID:2A7JZ-2504 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. EDR: 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 2.402 -4.083 0.39-4±1-3.000.50<50.155353.00YES 2.441 -2.684 0.54-2±1-1.000.79<50.248213.00YES 2.480 -2.151 0.61-2±1-1.000.79<50.250183.00YES 2.402 -4.282 0.37-4±1-3.000.50<50.155353.00YES 2.441 -2.904 0.51-2±1-1.000.79<50.248213.00YES 2.480 -2.292 0.59-2±1-1.000.79<50.250183.00YES 2.402 -4.444 0.36-4±1-3.000.50<50.155353.00YES 2.441 -2.958 0.51-2±1-1.000.79<50.248213.00YES 2.480 -2.379 0.58-2±1-1.000.79<50.250183.00YES GFSK π /4DQPSK 8DQPSK Conclusion: For the max result : 0.25018≤ FCC Limit 3.0 for 1g SAR.

- 1 - 嘉兴佳利电子有限公司 http://www. glead.com.cn 阿里巴巴 http://zydq.en.al iba ba.com JIA XING GLEAD ELECTRONICS CO., LTD 产 品 技 术 规 格 书 SPECIFICATION 产品型号 PART NO： GL2012H2450-D06 客户料号 CUSTOMER PART NO： 客户确认 CUSTOMER APPROVED BY： 确认日期 APPROVED DATE： 中国浙江省嘉兴市经济开发区正原路 66 号 No.66 ZhengyuanRoad, Economic Development Zone,Jiaxing,Zhejiang,China TEL：0086-573-83651818 FAX：0086-573-83651858 拟制 Prepared by： 审核 Checked by ： 批准 Approved by： 送样日期 Formed On 产品版本 Document Version ( V1.5 ) - 2 - 嘉兴佳利电子有限公司 http://www. glead.com.cn 阿里巴巴 http://zydq.en.al iba ba.com JIA XING GLEAD ELECTRONICS CO., LTD 目 录 Table of contents 规格书版本更改记录 Version rejigger track record... ......... ......... ......... 3 1. 概述 Introduc tio n..................................................................4 2. 型号 P art Numb er...............................................................4 3. 外形尺寸及焊盘尺寸 Dimens io n.............................................4 4. 测试电路和匹配电路 Evaluation Board and Matc hing C ircuits.........5 5. 电气性能 Elec tric al C haracteris tics..........................................5 6. 特性曲线 C ha r a c t e r is t ic c ur ve .......................................... 5 7. 方向图 R a d ia t io n P a t t e r n ................................................... 6 8. 可靠性试验后允许误差 Post Dep endab ility To lerance ..................7 9. 可靠性试验 Depend ab ility Tes t..........................................7～8 10. 回流焊温度 Reflow So ld ering Stand ard Cond itio n........................9 11. 包装尺寸 Packaging and Dimens ions ....................................9～10 - 3 - 嘉兴佳利电子有限公司 http://www. glead.com.cn 阿里巴巴 http://zydq.en.al iba ba.com JIA XING GLEAD ELECTRONICS CO., LTD 产品规格书版本更改记录 Version rejigger track record 版本号 Version 更改记录 Rejigg er 拟制 Prep ared 批准 Approve 日期 Date V1.0 首次发行 孙超 陆德龙 2015.2.30 V1.1 更改产品尺寸公差值 罗昌桅 卢冠宇 2017.05.24 V1.2 修正可靠性试验说明内容 8.1~8.4 潘枫 卢冠宇 2017.11.07 V1.3 修改焊盘尺寸图 潘枫 卢冠宇 2017.11.23 V1.4 修正可靠性项目 9.4 内容 更新回流焊温度曲线图表 修正 11.3 产品储存条件为 MSL:1 潘枫 卢冠宇 2018.06.13 V1.5 修正 11.2 载盘宽度 潘枫 卢冠宇 2018.12.28 备注： 1、更改产品电性能指标时，版本号需更换（V1.0 换为 V2.0、V3.0......）； 2、更改产品测试方法（包括可靠性测试条件），或更改使用条件时，当前版本号加系列（ V1.0 换为 V1.1、V1.2......）。 - 4 - 嘉兴佳利电子有限公司 http://www. glead.com.cn 阿里巴巴 http://zydq.en.al iba ba.com JIA XING GLEAD ELECTRONICS CO., LTD 1. 概述 INTRODUCTION "佳利"微波多层陶瓷天线 GL 系列产品设计用于 WLAN、WiF i、蓝牙、PHS，手机 多频天线, FM 等小体积 SMD 片式设计。 "GLEAD" Microwave Multi- Layer Ceramic Antenna LA series are designed to be used in WLAN、WiF i、Bluetooth、PHS、 Multip le-band Mobile phone antenna, FM, etc and compact size SMD chip design. 2. 型号 Part Number GL 2012 H 2450 – D06 产品名称，编号 D06 /Product Name:D06 天线频率/ Antenna Frequency: 2450 MHz 产品设计结构 H 型/Via Des ign Series 产品尺寸/Size：2.0×1.25×0.6 多层结构天线/Mult i- layer Antenna 3. 外型尺寸及焊盘尺寸 Dimensions（Unit：mm） - 5 - 嘉兴佳利电子有限公司 http://www. glead.com.cn 阿里巴巴 http://zydq.en.al iba ba.com JIA XING GLEAD ELECTRONICS CO., LTD 4. 测试板和匹配电路 EvaluationBoard and MatchingCircuits 5. 电气性能 Electrical Characteristics 0.5pF 6.5nH No. Item （项目） Specifications （特性） 5.1 Working Central Frequency 中心工作频率 (After matching) 2450 MHz 5.2 Band Width 通带宽度 65MHz typ. 5.3 Peak Gain 峰值增益 2.7 dBi 5.4 V. S . W. R ( in BW) 驻波比 ≤2.0 5.5 Polarization 极化方式 Lin ear 线性 5.6 Azimuth Beam width 方位角 Omni-direction al 全向 5.7 Impedance 阻抗 50 Ω 6. 特性曲线 Characteristic curve - 6 - 嘉兴佳利电子有限公司 http://www. glead.com.cn 阿里巴巴 http://zydq.en.al iba ba.com JIA XING GLEAD ELECTRONICS CO., LTD 7 方向图 Radiation Pattern - 7 - 嘉兴佳利电子有限公司 http://www. glead.com.cn 阿里巴巴 http://zydq.en.al iba ba.com JIA XING GLEAD ELECTRONICS CO., LTD 8 可靠性试验后允许误差 Post Dependability Tolerance 经可靠性试验后允许比起始读数偏差见下表 Post Dependability Tolerance ( Refer to the table ) No. Item （项目） Post Dependability Tolerance (可靠性试验后允许附加误差) 8.1 Central Frequency 中心频率 ±5 MHz 8.2 Band Width 通带宽度 ±5 MHz 8.3 Gain 增益 ±0.1 dBi 8.4 V. S . W. R ( in BW) 驻波比 ±0.1 9 可靠性试验 Dependability Test 基准条件：温度范围 Temperature range 25±5°C 相对湿度范围 Relat ive Hum id ity range 55~75%RH 工作温度 Operating Temperature range -40°C~+85°C 贮藏温度 Storage Temperature range -40°C~+85°C 9.1 耐振动 Vibration Resist 在振动频率为 10~55Hz 振幅为 1.5mm 沿 X.Y.Z 方向各振动 2 小时后测试符合表 8.1~8.4 规定。 The device should satisfy the electrical characteristics specified in paragraph 8.1~8.4 after applied to the vibration of 10 to 55Hz w ith amplitude of 1.5mm for 2 hours each in X , Y and Z directions. 9.2 耐跌落冲击 Drop Shock 在 100cm 高度处按 X，Y，Z 三个面分别自由跌落在木制地板上共 3 次后测试符合表 8.1~8.4 规 定。 The device should satisfy the electrical characteristics specified in paragraph 8.1~8.4 after dropping onto the hard w ooden board from the height of 100cm for 3 times each facet of the 3 dimensions of the device. 9.3 耐焊接热 Solder Heat Proof 能承受经 120~150°C的温度预热 120 秒后，在 255°C+10°C的焊锡浸 5 ±0.5 秒，或 300°C-10°C的 电烙铁焊接 3 ±0.5 秒，焊接面无损伤。 The device should be satisfied after preheating at 120°C~150°C for 120 seconds and dipping in soldering Sn at 255°C+10°C for 5 ±0.5 seconds，or electric iron 300°C-10°C for 3±0.5 seconds， w ithout damnify. 9.4 推力试验 Adhesive Strength of Termination 在产品电极端子上或表面上可承受 5N(≦0603)；10N(>0603)水平推力10±1秒而无明显外观损 坏 与电极移位 。 The device have no remarkable damage or removal of the termination after horizontal force of 5N(≦0603)；10N(>0603)w ith 10±1 seconds. - 8 - 嘉兴佳利电子有限公司 http://www. glead.com.cn 阿里巴巴 http://zydq.en.al iba ba.com JIA XING GLEAD ELECTRONICS CO., LTD 9.5 耐弯曲试验 Ben ding Resist Test 将产品按图焊在 1.6±0.2mm 的 PCB 板中间，由箭头方向施 力： 1mm/S，弯曲距离：1.0mm ，保持 5±1S，产品金属层无脱落。 Weld the product to the center part of the PCB w ith the thickness 1.6 ± 0.2mm as the illustration shows, and keep exerting force arrow-w ard on it at speed of :1mm/S , and hold for 5 ±1S at the position of 1.5mm bending distance , so far , any peeling off of the product metal coating should not be detected . 9.6 耐湿热特性 Mois ture Proof 在温度为 60 ±2°C，相对湿度 90~95%的恒温湿箱中放置 96 小时，在常温中恢复 1~2 小时后测 试，符合表 8.1~8.4 规定。 The device should satisfy the electrical characteristics specified in paragraph 8.1~8.4 after exposed to the temperature 60 ±2°Cand the relative humid ity 90~95% RH for 96 hours and 1~2 hours recovery time under normal condition. 9.7 高温特性 High Temperat…

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Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 56 TEST REPORT Compiled by: Reviewed by: Approved by: Zhou Kui Arron Liu Bin Mei / Director Note: 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: Hearing aid FCC ID: 2A7JZ-2504 Trademark: N/A Model Number: ion Pro 2 Prepared For: Xiamen Vienatone Medical Technology Co., Ltd. Address: 8th Floor, Block A, Jianye Building, No. 96 Xiangxing Road, Xiamen Torch High- Tech Zone Xiang'an Industrial Zone Manufacturer: Xiamen Vienatone Medical Technology Co., Ltd. Address: 8th Floor, Block A, Jianye Building, No. 96 Xiangxing Road, Xiamen Torch High- Tech Zone Xiang'an Industrial Zone 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: Sep. 16, 2025 Sample tested Date: Sep. 16, 2025 to Oct. 27, 2025 Issue Date: Oct. 27, 2025 Report No.: CTB25091601501RF01 Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2020 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB25091601501RF01 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 56 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ...................................................................................................................................................... 4 2. TEST SUMMARY ........................................................................................................................................ 5 3. MEASUREMENT UNCERTAINTY ........................................................................................................... 6 4. PRODUCT INFORMATION AND TEST SETUP .................................................................................... 7 4.1 Product Information ..................................................................................................................................................... 7 4.2 Test Setup Configuration ........................................................................................................................................... 7 4.3 Support Equipment ...................................................................................................................................................... 7 4.4 Channel List ................................................................................................................................................................... 8 4.5 Test Mode ....................................................................................................................................................................... 8 4.6 Test Environment ......................................................................................................................................................... 8 5. TEST FACILITY AND TEST INSTRUMENT USED ............................................................................... 9 5.1 Test Facility .................................................................................................................................................................... 9 5.2 Test Instrument Used .................................................................................................................................................. 9 6. AC POWER LINE CONDUCTED EMISSION ......................................................................................... 12 6.1 Block Diagram Of Test Setup ................................................................................................................................. 12 6.2 Limit ................................................................................................................................................................................ 12 6.3 Test procedure ............................................................................................................................................................ 12 6.4 Test Result ................................................................................................................................................................... 14 7. RADIATED SPURIOUS EMISSION ....................................................................................................... 16 7.1 Block Diagram Of Test Setup ................................................................................................................................. 16 7.2 Limit ................................................................................................................................................................................ 16 7.3 Test procedure ............................................................................................................................................................ 17 7.4 Test Result ................................................................................................................................................................... 18 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS .................................................... 27 8.1 Block Diagram Of Test Setup ................................................................................................................................. 27 8…

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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: ion Pro 2 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