2A3NOTE103Hearing Aids

USER GUIDE TE103 Read Before Use Thank you for choosing our product! By using this device, you will be able to step into a whole new auditory world. This device amplifies the sounds from your surroundings, helping alleviate issues with hearing clarity or assisting those who wish to "enhance conversation understanding" in noisy environments. Unlike glasses that immediately improve vision, this product typically requires an adaptation period of 1 to 4 months. Starting early helps your brain adapt more easily to the sound of this device, ultimately improving auditory effectiveness . You can also scan the QR code next to it to obtain instructions in other languages, such as German/Legal/ Russian/Japanese/Spanish/Italian, which will help you better understand and use this product. Product Introduction Device Overview Controls and indicator Device Overview This device can enhance your hearing experience and features a multifunctional charging case that stores power and charges your device. The earphones are easy to operate and convenient for daily use. Controls and indicator Remote Microphone Input Port Touch Button Function Guide No. 1 2 3 Mode Function Operation Method Prompt Tone Normal/ Restaurant/ TV/Outdoor Increase/Decrease Volume Short press the touch button 1 beep for each change, 3 beeps for max /min volume Remote Microphone Mode Switch Press and hold the touch button for 3 seconds 1-4 beeps Increase/Decrease Volume Short press the touch button 1 beep DEVICE USAGE Wearing the Earphones Charging Multi-Function Buttone Function Guide No. 1 2 Control Operation Sound Indicator light Turn on remote microphone Press and hold the button for 3seconds Green light stays on for 2 seconds Press and hold the button for 3seconds / Blue light stays on for 2seconds Turn off remote microphone Power On/Off 1-second long prompt sound Power On/Off Power on: Open the lid and remove the earphones (as shown in the image).The device will automatically power on within approximately 10 seconds. Tips: ① The device has a delayed startup function, and it will take about 10 seconds to power on. ② If the device is on but not securely worn in your ears, you may hear whistling or screeching sounds. This is the device notifying you that it needs to be properly inserted into the ear canal. Once correctly positioned, the whistling sound will stop. Power off:Place the device back in the charging case and close the lid (as shown in the image). The earphones will automatically power off. Wearing the Earphones It is recommended that you follow these steps to properly wear the earphones. Note:① Note:Please tear off the insulation sticker and start using. ② The devices come with preassembled domes. You can replace one to fit your special needs. Note: ① Correct Position: The microphone port should face the ear canal. ② Avoid touching the microphone port while wearing the device to prevent squealing. If the device is not placed correctly, squealing may occur. Refer to the installation diagram below, be patient, and try again until the squealing stops. Step 5 Gently tug on your ear lobe. Step 6 Push the device into best fit position. Note: This device has a slim inner ear section that can be inserted deeper into the ear canal. This serves as a reference position, but each person's ear canal is different. Please adjust the fit patiently to find the most comfortable position. Charging 1.Place the earphones into the charging case and close the lid. The charging case will automatically charge the earphones (as shown in the image). 2.Use the included charging cable to connect the charging case to your power adapter to begin charging. Note: Please use a legally compliant adapter (Input: 100-240V AC, 50Hz/60Hz; Output: DC 5V, 1A) to charge the device. Charging Indicator Light Introduction Charging Function Description Charging Time Working Time Earphones 2.5~3 hours ≥20 hours 2.5~3 hours 3 charging cycles for two devices Charging Case Note: ① When the remote microphone is on, the charging case indicator light will turn green. ②Low Battery Warning: When the device is in low battery state, it will emit 5 beeps every 5 minutes. ③ Data were tested under controlled laboratory conditions.Data depend on many other factors; Use these these laboratory-derived data for reference purposes only and actual results will vary. The devices are fully charged. The devices are being charged. The case is fully charged. The case is being charged. Overcurrent protection triggered-> Use original charger. Charging error -> Clean contacts. Drying Mode Introduction The multifunctional charging case also has a drying function that helps protect the device and extend its lifespan. When the charging case is connected to an external power source and charging is complete, the drying function will be activated automatically. The charging case will heat the earphones and dry them for approximately three hours. It is recommended to charge and dry the earphones before bed. Note: To optimize the drying function, you can press and hold the multifunctional button to turn off the remote microphone function of the charging case. 03 Product Settings Take the earphones out of the charging case, and within 10 seconds, the earphones will automatically activate (default mode is "Normal"). Please ensure to wear the device within 10 seconds. This product has 4 scene modes and 6 volume levels. Please follow the guidelines below to set or change the desired product mode: Volume Control If you find the sound in the earphones too loud or too quiet, short press the button can increase or decrease the volume. Volume operation instructions Level Gain Level Gain Level 1 Level 2 Level 3 2dB 8dB 14dB Level 4 Level 5 Level 6 20dB 26dB 30dB Tip: ① The gain values for each volume level represent the average value of each frequency band, for reference only. ② A "beep" sound will notify you when the volume changes. Three beeps will indicate when you reach the maximum or minimum volume levels. Mo…

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ZHENGZHOUYSAIRTECHNOLOGYCO.,LTD 2.911(d)(5)(i)EquipmentTypeAttestationv1.2 Section2.911(d)(5)(i)Certification–EquipmentType Company:ZHENGZHOUYSAIRTECHNOLOGYCO.,LTD Address:Room2101,21stFloorofBBlock,SiliconValleyPlaza,82CultureStreet,Jinshui District,ZhengzhouCity,HenanProvince,China ProductName:HearingAids ModelNumber:TE103 FCCID:2A3NOTE103 2.911(d)(5)(i)EquipmentType We,[ZHENGZHOUYSAIRTECHNOLOGYCO.,LTD](“theapplicant”)certifythattheequipmentforwhich authorizationissoughtthroughcertificationisnot:  Prohibitedfromreceivinganequipmentauthorizationpursuantto§2.903;oftheFCCrules.  Identifiedasanequipmenttypeinthe“CoveredList” NOTE1 Yourssincerely, Name:WeidongShenDate:2026-01-08 TitleandCompanyname:GeneralManager NOTE1 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

ZHENGZHOUYSAIRTECHNOLOGYCO.,LTD 2.911(d)(5)(ii)ApplicantAttestationv1.2 Section2.911(d)(5)(ii)Certification–Applicant(CoveredList) Company:ZHENGZHOUYSAIRTECHNOLOGYCO.,LTD Address:Room2101,21stFloorofBBlock,SiliconValleyPlaza,82CultureStreet,Jinshui District,ZhengzhouCity,HenanProvince,China ProductName:HearingAids ModelNumber:TE103 FCCID:2A3NOTE103 2.911(d)(5)(ii)Applicantfiling We,[ZHENGZHOUYSAIRTECHNOLOGYCO.,LTD](“theapplicant”)certifythat,asofthedateofthefilingof theapplication,theapplicantisidentified/isnotidentified NOTE1 onthe“CoveredList” NOTE2 , establishedpursuantto §1.50002ofthischapter,asanentityproducingcoveredcommunicationsequipment. Yourssincerely, Name:WeidongShenDate:2026-01-08 TitleandCompanyname:GeneralManager NOTE1 Deleteoptionnotapplicabletothisapplication. NOTE2 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

ZHENGZHOUYSAIRTECHNOLOGYCO.,LTD * theapplicantmustdesignateacontactlocatedintheUnitedStatesforpurposesofactingasthe applicant’sagentforserviceofprocess,regardlessofwhethertheapplicantisadomesticorforeign entity.AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforserviceofprocess. U.S.AgentDesignationforServiceofProcess- CertificationAttestationLetter January8,2026 NemkoNorthAmerica,Inc. 303RiverRoad Ottawa K1V1H2 Canada ATTN.:ReviewingEngineer FCCID: 2A3NOTE103 FRN: 0031620636 Persection2.911(d)(7)oftheFCCrules,(“ ZHENGZHOUYSAIRTECHNOLOGYCO.,LTD ”) certifiesthattheequipmentforwhichauthorizationissoughtisdesignatedtothefollowingU.S. Designatedagent*forserviceofprocess: CompanyName: RETEVISINC PhysicalU.S.CompanyAddress: 1733EBROOKPORTSTCOVINA,CA91724 Agentname: LIUYELI AgentEmailAddress: [email protected] FRN: 0033657701 Theabovecontactpersonacceptstheobligationforserviceofprocess. Theapplicantacceptstomaintainanagentfornolessthanoneyearafterthegranteehas terminatedallmarketingandimportationortheconclusionofanyCommission-related proceedinginvolvingtheequipment. ApplicantSigned:DesignatedAgentSigned: (Required,ifdifferenttoApplicant): Signed:Signed: Printedname: WeidongShen Printedname: LIUYELI Title: GeneralManager Title: Director Company Name: ZHENGZHOUYSAIR TECHNOLOGYCO.,LTD Company Name: RETEVISINC Date: January8,2026 Date: January8,2026

ZHENGZHOUYSAIRTECHNOLOGYCO.,LTD OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2026-01-08 Subject;RequestforConfidentiality FCCID:2A3NOTE103 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram OperationalDescription Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:WeidongShen Title:GeneralManager

ZHENGZHOUYSAIRTECHNOLOGYCO.,LTD LetterofAuthorization Company:ZHENGZHOUYSAIRTECHNOLOGYCO.,LTD Address:Room2101,21stFloorofBBlock,SiliconValleyPlaza,82Culture Street,JinshuiDistrict,ZhengzhouCity,HenanProvince,China ProductName:HearingAids ModelNumber:TE103 FCCIdentifier:2A3NOTE103 WeauthorizeMiCOMLabsInc,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningtheabovenamedequipment. AnyindividualwithinMiCOMLabsisauthorizedtoactonourbehalfandtakeactionon theapplication. WedeclarethatMiCOMLabsInc,575BoulderCourt,Pleasanton,California94566, USA,isallowedtoforwardallinformationrelatedtotheapprovalprojecttotheFederal CommunicationCommissionandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyMiCOMLabsonourbehalfshallhavethe sameeffectasactsofourown. Name:WeidongShenDate:2026-01-08 Title:GeneralManager

External Photos Right Left

FCC ID Label Location The product does not have enough space to place the label, and FCC ID is reflected in the usermanual and package. User manual as below: Package as below:

Internal Photos Right Left

TEST REPORT For RF Expose Report No......................................... : CHTW25120137 Project No ........................................ : SHT2510024301W FCC ID ............................................. : 2A3NOTE103 Applicant’s name ............................. : ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Address ............................................ : Room 2101, 21st Floor of B Block, Silicon Valley Plaza, 82 Culture Street,Jinshui District,Zhengzhou City,Henan Province, China Product Name .................................. : Hearing Aids Trade Mark....................................... : RETEKESS Model No.......................................... : TE103 Listed Model(s) ................................ : - Standard .......................................... : FCC Part 2 (Section 2.1093) Date of receipt of test sample..........: 2025/10/27 Date of testing.............................: 2025/10/27- 2025/12/30 Date of issue...............................: 2025/12/31 Result ................... ........................: Pass Compiled by (Position+Printed name+Signature) : File administrator Xiaodong Zhao Supervised by (Position+Printed name+Signature) : Project Engineer Kiki Kong Approved by (Position+Printed name+Signature) : RF Manager Xu Yang Testing Laboratory Name ............. : Shenzhen Huatongwei International Inspection Co., Ltd. Address ............................................ : Building 7, Baiwang Idea Factory, No.1051, Songbai Road, Yangguang Community, Xili Subdistrict, Nanshan District, Shenzhen, Guangdong, China Test Report Form No. ........................ : R0066 Test Report Form(s) Originator ......... : Shenzhen Huatongwei International Inspection Co., Ltd. Master TRF ........................................ : Dated 2025-07 Shenzhen Huatongwei International Inspection Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Huatongwei International Inspection Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Huatongwei International Inspection Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context.The test report merely correspond to the test sample.The authenticity of this Test Report and its contents can be verified by contacting the Laboratory, responsible for this Test Report. Report No.: CHTW25120137 Page 2 of 5 Contents 1. TEST STANDARDS AND REPORT VERSION 3 1.1. Test standards 3 1.2. Report version information 3 2. SUMMARY 4 2.1. Client Information 4 2.2. Product Description 4 2.3. Radio Specification Description 4 2.4. Testing Laboratory Information 4 3. RF EXPOSURE 5 Report No.: CHTW25120137 Page 3 of 5 1. TEST STANDARDS AND REPORT VERSION 1.1. Test standards The tests were performed according to following standards: FCC Part 2 (Section 2.1093)- Radiofrequency radiation exposure evaluation: portable devices. KDB 447498 D04 Interim General RF Exposure Guidance v01- RF Exposure Procedures and Equipment Authorization Policies for Mobile and Portable Devices FCC Part 1 (Section 1.1307)- Actions that may have a significant environmental effect, for which Environmental Assessments (EAs) must be prepared. 1.2. Report version information Revision No. Date of issue Description N/A 2025-12-31 Original Report No.: CHTW25120137 Page 4 of 5 2. SUMMARY 2.1. Client Information Applicant: ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Address: Room 2101, 21st Floor of B Block, Silicon Valley Plaza, 82 Culture Street,Jinshui District,Zhengzhou City,Henan Province, China Manufacturer: HONG KONG RETEKESS CO.,LIMITED Address: FLAT/RM 1019B 10/F LIVEN HOUSE NO.61-63 KING YIP STREET KWUN TONG KL Factory: XIAMEN NEWSOUND TECHNOLOGY CO.LTD Address: No. 13, Xiangyue Road, Industrial Zone, Torch High-tech Zone (Xiangan), Xiamen, Fujian Province 2.2. Product Description Product Name: Hearing Aids Trade Mark: RETEKESS Model No.: TE103 Listed Model(s): - Power supply: DC 3.6V from Battery Hardware version: V3.1 Software version: V1.0 2.3. Radio Specification Description Bluetooth Supported type: BR EDR LE-1Mbps LE-2Mbps Note: Please refer to RF report for detailed technical specifications 2.4. Testing Laboratory Information Laboratory Name Shenzhen Huatongwei International Inspection Co., Ltd. Laboratory Location Building 7, Baiwang Idea Factory, No.1051, Songbai Road, Yangguang Community, Xili Subdistrict, Nanshan District, Shenzhen, Guangdong, China Contact information: Tel: 400-963-0755 E-mail: [email protected] http://www.szhtw.com.cn Report No.: CHTW25120137 Page 5 of 5 3. RF EXPOSURE LIMIT: KDB 447498 D04 Interim General RF Exposure Guidance v01 Appendix B Exemptions for Single RF Sources B.3 MPE-based Exemption and B.4 SAR-based Exemption: f is in GHz, d is the separation distance (cm), and ERP20cm is per Formula (B.1). TEST RESULT Passed Not Applicable Radio Type Frequency range (MHz) Conducted Power(dBm) Conducted Maximum Tune- up(dBm) Ant Gain(dBi) Maximum ERP/EIRP (dBm) Maximum ERP/EIRP (mW) Minimum Separation Distance(mm) Pth* (mW) Bluetooth 2402- 2480 0.06 0.10 -1.88 -1.78 0.66 5 2.79 Note: 1) The safety distance for body exposure assessment is 5mm 2) The maximum antenna gain is -1.88dBi --------End of Report--------

SPECIFICATION SHEET FOR APPROVAL （Revision：R：A0） CUSTOMER(客户名称) 厦门新声科技有限公司 CS P/N(客户机种) HI024 PART NAME(品名) WPC-L天线 FREQUENCY(频率) 2400~2500MHz CUS NO.(客户编号) ZTX NO.(物料编号) 1.03.03105 DATE(日期) 2025/11/4 CUSTOMER QA CHECKED ME CHECKED RF CHECKED MANAGER CHECKED Remark(备注)： Sign(客户确认签字盖章)： Shenzhen ZTX Communication Technology Co., Ltd MANAGER CHECKED MANAGER CHECKED ME CHECKED RF CHECKED LISTER 柯友杰冯广权 地址：深圳市宝安区石岩镇石龙大道34号(腾达工业园) 邮编：518000 电话：0755-27588320 传真：0755-27588045 http://www.chinaztx.com Revision history 版本日期状态 A02025/11/4初版 2 目录 Index 封面/Cover ........................................................................................................................1 变更履历/Revision history ...........................................................................................2 目录/Index ........................................................................................................................3 1.工程图纸/2D Drawing ..........................................................................................4 2.试验设备/Test equipment ..................................................................................5 3. 电气/机械性能测试报告/Electrical Performance Test Report ..................6~7 3 4 2.Test equipment 5 3.Test Results Surmmary 3-1 VSWR 3-2 Passive test 6 3-32D/3DRadiationPatternResults 3-4Environmenttreatment 7

TEST REPORT For Bluetooth-LE Report No......................................... : CHTW25120135 Project No ........................................ : SHT2510024301W FCC ID ............................................. : 2A3NOTE103 Applicant’s name ............................. : ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Address ............................................ : Room 2101, 21st Floor of B Block, Silicon Valley Plaza, 82 Culture Street,Jinshui District,Zhengzhou City,Henan Province, China Product Name .................................. : Hearing Aids Trade Mark....................................... : RETEKESS Model No.......................................... : TE103 Listed Model(s) ................................ : - Standard .......................................... : FCC CFR Title 47 Part 15 Subpart C § 15.247 Date of receipt of test sample..........: 2025/10/27 Date of testing.............................: 2025/10/27- 2025/12/30 Date of issue...............................: 2025/12/31 Result ................... ........................: Pass Compiled by (Position+Printed name+Signature) : File administrator Xiaodong Zhao Supervised by (Position+Printed name+Signature) : Project Engineer Kiki Kong Approved by (Position+Printed name+Signature) : RF Manager Xu Yang Testing Laboratory Name ............. : Shenzhen Huatongwei International Inspection Co., Ltd. Address ............................................ : Building 7, Baiwang Idea Factory, No.1051, Songbai Road, Yangguang Community, Xili Subdistrict, Nanshan District, Shenzhen, Guangdong, China Test Report Form No. ........................ : R0066 Test Report Form(s) Originator ......... : Shenzhen Huatongwei International Inspection Co., Ltd. Master TRF ........................................ : Dated 2025-07 Shenzhen Huatongwei International Inspection Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Huatongwei International Inspection Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Huatongwei International Inspection Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context.The test report merely correspond to the test sample.The authenticity of this Test Report and its contents can be verified by contacting the Laboratory, responsible for this Test Report. Report No.: CHTW25120135 Page 2 of 44 Contents 1. TEST S T AN D AR D S A N D R E P O R T V E R S I O N 3 1.1. Test Standards 3 1.2. Report version 3 2. TEST DESCRIPTION 4 3. SUMMARY 5 3.1. Client Information 5 3.2. Product Description 5 3.3. Radio Specification Description 5 3.4. Testing Laboratory Information 6 4. TEST CONFIGURATION 7 4.1. Test frequency list 7 4.2. Descriptions of Test mode 7 4.3. Test sample information 7 4.4. Support unit used in test configuration and system 8 4.5. Testing environmental condition 8 4.6. Statement of the measurement uncertainty 8 4.7. Equipment Used during the Test 9 5. TEST CONDITIONS AND RESULTS 11 5.1. Antenna Requirement 11 5.2. AC Conducted Emission 12 5.3. Peak Output Power 15 5.4. Power Spectral Density 16 5.5. 6dB bandwidth 17 5.6. 99% Occupied Bandwidth 18 5.7. Duty Cycle 19 5.8. Conducted Band edge and Spurious Emission 20 5.9. Radiated Band edge Emission 21 5.10. Radiated Spurious Emission 24 6. TEST SETUP PHOTOS 31 7. EXTERNAL AND INTERNAL PHOTOS 34 7.1. External Photos 34 7.2. Internal Photos 40 8. APPENDIX REPORT 44 Report No.: CHTW25120135 Page 3 of 44 1. TEST STAND ARDS AND REPORT VERSION 1.1. Test Standards The tests were performed according to following standards: ‒ FCC CFR Title 47 Part 15 Subpart C § 15.247: Operation within the bands 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz ‒ ANSI C63.10:2020: American National Standard for Testing Unlicensed Wireless Devices ‒ KDB 558074 D01 15.247 Meas Guidance v05r02: Guidance for Compliance Measurements on Digital Transmission System, Frequency Hopping Spread Spectrum System, and Hybrid System Devices Operating under Section 15.247 of The FCC Rules 1.2. Report version Revision No. Date of issue Description N/A 2025-12-31 Original Report No.: CHTW25120135 Page 4 of 44 2. TEST DESCRIPTION Report clause Test Items Standard Requirement Result Test Engineer 5.1 Antenna Requirement 15.203/15.247(c) PASS Xiangyu Wei 5.2 AC Conducted Emission 15.207 PASS JUNXU.LIN 5.3 Peak Output Power 15.247(b)(3) PASS Xiangyu Wei 5.4 Power Spectral Density 15.247(e) PASS Xiangyu Wei 5.5 6dB Bandwidth 15.247(a)(2) PASS Xiangyu Wei 5.6 99% Occupied Bandwidth - PASS *1 Xiangyu Wei 5.7 Duty cycle - PASS *1 Xiangyu Wei 5.8 Conducted Band Edge and Spurious Emission 15.247(d)/15.205 PASS Xiangyu Wei 5.9 Radiated Band Edge Emission 15.205/15.209 PASS Sijiaxing 5.10 Radiated Spurious Emission 15.247(d)/15.205/15.209 PASS JUNMAN.WANG JUNXU.LIN Note: ‒ The measurement uncertainty is not included in the test result. ‒ *1: No requirement on standard, only report these test data. Report No.: CHTW25120135 Page 5 of 44 3. SUMMARY 3.1. Client Information Applicant: ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Address: Room 2101, 21st Floor of B Block, Silicon Valley Plaza, 82 Culture Street,Jinshui District,Zhengzhou City,Henan Province, China Manufacturer: HONG KONG RETEKESS CO.,LIMITED Address: FLAT/RM 1019B 10/F LIVEN HOUSE NO.61-63 KING YIP STREET KWUN TONG KL Factory: XIAMEN NEWSOUND TECHNOLOGY CO.LTD Address: No. 13, Xiangyue Road, Industrial Zone, Torch High-tech Zone (Xiangan), Xiamen, Fujian Province 3.2. Product Description Main unit information: Product Name: Hearing Aids Trade Mark: RETEKESS Model No.: TE103 Listed Model(s): - Power supply: DC 3.6V from Battery Hardware version: V3.1 Software version: V1.0 3.3. Radio Specification Description Bluetooth version: V5.0 Support function: BLE1M,BLE2M Modulation: GFSK Operation frequency: 2402MHz~2480MHz Channel numb…

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APPENDIX REPORT Project No. SHT2510024301W Radio Specification Bluetooth BLE Test sample No. YPHT25100243005 Model No. TE103 Start test date 2025-12-29 Finish date 2025-12-29 Temperature 21.7°C Humidity 42% Test Engineer Xiangyu Wei Auditor Appendix clause Test item Result A Peak Output Power PASS B Power Spectral Density PASS C 6db Bandwidth PASS D 99% Occupied Bandwidth PASS E Duty Cycle PASS F Band edge and Spurious Emission(Conducted) PASS Appendix A: Peak Output Power Test Result Peak TestMode Frequency[MHz] Conducted Peak Powert[dBm] Conducted Limit[dBm] Verdict BLE_1M 2402 -0.15 ≤30 PASS BLE_1M 2440 0.06 ≤30 PASS BLE_1M 2480 -0.03 ≤30 PASS BLE_2M 2402 -0.14 ≤30 PASS BLE_2M 2440 0.03 ≤30 PASS BLE_2M 2480 0.03 ≤30 PASS Test Graphs Peak BLE_1M-2402-PASS BLE_1M-2440-PASS BLE_1M-2480-PASS BLE_2M-2402-PASS BLE_2M-2440-PASS BLE_2M-2480-PASS Appendix B: Power Spectral Density Test Result TestMode Frequency[MHz] Result[dBm/3kHz] Limit[dBm/3kHz] Verdict BLE_1M 2402 -15.78 ≤8.00 PASS BLE_1M 2440 -15.59 ≤8.00 PASS BLE_1M 2480 -15.63 ≤8.00 PASS BLE_2M 2402 -18.39 ≤8.00 PASS BLE_2M 2440 -18.18 ≤8.00 PASS BLE_2M 2480 -18.30 ≤8.00 PASS Test Graphs BLE_1M-2402-PASS BLE_1M-2440-PASS BLE_1M-2480-PASS BLE_2M-2402-PASS BLE_2M-2440-PASS BLE_2M-2480-PASS Appendix C: 6db Bandwidth Test Result TestMode Frequency[MHz] 6db Bandwidth [MHz] Limit[MHz] Verdict BLE_1M 2402 0.78 0.5 PASS BLE_1M 2440 0.77 0.5 PASS BLE_1M 2480 0.75 0.5 PASS BLE_2M 2402 1.52 0.5 PASS BLE_2M 2440 1.47 0.5 PASS BLE_2M 2480 1.46 0.5 PASS Test Graphs BLE_1M-2402-PASS BLE_1M-2440-PASS BLE_1M-2480-PASS BLE_2M-2402-PASS BLE_2M-2440-PASS BLE_2M-2480-PASS Appendix D: 99% Occupied Bandwidth Test Result TestMode Frequency[MHz] 99% Occupied Bandwidth [MHz] Limit[MHz] Verdict BLE_1M 2402 1.0749 --- --- BLE_1M 2440 1.0669 --- --- BLE_1M 2480 1.0829 --- --- BLE_2M 2402 2.1019 --- --- BLE_2M 2440 2.1059 --- --- BLE_2M 2480 2.1179 --- --- Test Graphs BLE_1M-2402 BLE_1M-2440 BLE_1M-2480 BLE_2M-2402 BLE_2M-2440 BLE_2M-2480 Appendix E: Duty Cycle Test Result TestMode Frequency[MHz] ON Time [ms] Period [ms] Duty Cycle [%] Duty Cycle Factor[dB] 1/Ton time(kHz) BLE_1M 2402 0.39 0.63 61.90 2.08 2.56 BLE_1M 2440 0.39 0.62 62.90 2.01 2.56 BLE_1M 2480 0.39 0.63 61.90 2.08 2.56 BLE_2M 2402 0.20 0.62 32.26 4.91 5.00 BLE_2M 2440 0.20 0.63 31.75 4.98 5.00 BLE_2M 2480 0.20 0.62 32.26 4.91 5.00 Test Graphs NTNV-BLE_1M-2402 NTNV-BLE_1M-2440 NTNV-BLE_1M-2480 NTNV-BLE_2M-2402 NTNV-BLE_2M-2440 NTNV-BLE_2M-2480 Appendix F: Band edge and Spurious Emission(Conducted) Test Graphs BLE_1M-2402-PASS BLE_1M-2480-PASS BLE_2M-2402-PASS BLE_2M-2480-PASS BLE_1M-2402-0~Reference-PASS BLE_1M-2402-30~1000-PASS BLE_1M-2402-1000~26500-PASS BLE_1M-2440-0~Reference-PASS BLE_1M-2440-30~1000-PASS BLE_1M-2440-1000~26500-PASS BLE_1M-2480-0~Reference-PASS BLE_1M-2480-30~1000-PASS BLE_1M-2480-1000~26500-PASS BLE_2M-2402-0~Reference-PASS BLE_2M-2402-30~1000-PASS BLE_2M-2402-1000~26500-PASS BLE_2M-2440-0~Reference-PASS BLE_2M-2440-30~1000-PASS BLE_2M-2440-1000~26500-PASS BLE_2M-2480-0~Reference-PASS BLE_2M-2480-30~1000-PASS BLE_2M-2480-1000~26500-PASS --------End of Report--------

TEST SETUP PHOTOS Radiated Emission AC Conducted Emission