2BSXT-KSY3500AOutput Power listed is conducted.

Korotkoff Sound Blood Pressure Monitor User Manual KSY3500/KSY3500B/KSY3500A Beijing Hanvon Health Technology Co., Ltd. ● Thank you for purchasing Hanvon Korotkoff Sound Blood Pressure Monitor. ● To ensure safe usage of this product, please read this user manual carefully before use. ● After reading, please keep it carefully for future reference. ● This Blood Pressure Monitor utilizes the electronic Korotkoff sound method for measurement. ● This product is suitable for scenarios such as families, hospitals, and clinics, etc. Intended purpose: The device is a digital monitor intended for use in measuring the systolic pressure and diastolic pressure, as well as the pulse rate of adults and adolescents via a non-invasive auscultatory method in medical facilities or at home, with an inflatable cuff wrapped around the upper arm for arm circumfer- ences ranging from 22 to 42 cm. The measurement ranges of the device are systolic pressure 40 ~ 280 mmHg (supported by automatic mode for 40 to 210 mmHg and manual mode for 210 to 280 mmHg), diastolic pressure 20 ~ 220 mmHg, and pulse rate 40 ~ 240 beats/min. The device can detect Irregular Heart Beat(IHB), Atrial Fibrillation, Tachycardia, and evaluate Blood Pressure Variability (BPV), Time in Target Range (TTR) according to the measured blood pressure values. Intended Patient: Adults and adolescents （ ＞ 12 years） Clinical Benefit: Patient’s blood pressure can be measured non-invasively and simply in the home and clinical environment. Contraindications: DO NOT use this monitor on an injured arm or an arm under medical treatment. DO NOT apply the arm cuff on your arm while on an intravenous drip or blood transfusion. DO NOT use this monitor on infants, toddlers, children or persons who cannot express themselves. Structural Composition: It is composed of the main unit, the cuff, and the AC adapter (optional). 1. Product Introduction 1.1 Packing List All products are packed inside the packaging box. Open the box to check whether the products are complete. The list of items included in the box is shown in the table below. If you find any missing items, please contact the after-sales service. Main Unit (front)Main Unit (left) Packing List Main Unit 1 unit Cuff 1 piece User Manual Quick Operation Guide 1 copy 1 copy Quantity 1.2 Component Description "Start/Stop" Button User Button Air Tube Connector Socket Main Unit(right)Main Unit (bottom) Backward Button Forward Button Type-C Charging Port Volume Button 2.Safety Precautions The terms "Warning" and "Caution" used in this manual pertain to the safety of using this product, with the following specific meanings: Warning: Failure to comply may result in personal injury or death. Caution: Failure to comply may result in personal injury or damage to property. Cuff * This product only supports the dedicated cuff of Hanvon. Explanation of Symbols Warning 1. Do not frequently measure blood pressure unless medically necessary. Excessive frequent measurements may injure the patient due to blood flow interference, potentially leading to poor circula- tion or bruising. 2. If symptoms such as skin irritation occur during use, discontinue use and consult a physician; otherwise, symptoms may worsen. 3. If the Blood Pressure Monitor malfunctions or feels abnormal, discontinue use and arrange for inspection and repair. 4. Do not use simultaneously with other medical electrical equip- ment on the same limb. Cuff inflation may temporarily impair the function of monitoring ME equipment used concurrently on the same limb. 5. Do not apply the cuff to an arm with wounds or inflammation; otherwise, symptoms may worsen. 6. Do not use this product on an arm where other catheters are inserted, or on any limb undergoing intravascular intervention or treatment, or an arteriovenous (A-V) shunt, as this may temporarily interfere with blood flow and potentially injure the patient. 7. Do not use this device on the arm on the side of a mastectomy or lymph node dissection. 8. Do not use simultaneously with other medical electrical equip- ment, as there is a risk of this product malfunctioning. 9. Ensure (e.g., by observing the relevant limb) that this product does not cause persistent damage to the patient's blood circula- tion. Patients with circulatory disorders or blood diseases shall use this product under medical supervision. 10. When measuring blood pressure, please note whether there is continuous cuff pressure caused by internal tubing kinking; if so, please stop the measurement. 11. Do not use in locations prone to fire or explosion, such as environments with flammable gases or high concentrations of oxygen. 12.Portable RF communications equipment (including peripherals such as antenna cables and external antennas) should be used no closer than 30 cm (12 inches) to any part of the Blood Pressure Monitor, including cables specified by the manufacturer. Otherwise, degradation of the performance of this equipment could result. 1.3 Function Introduction Measurement Method Cuff Malfunction Prompt Inproper Wearing Prompt Re-measure Prompt Irregular Pulse Prompt Normal Blood Pressure Prompt Electronic Mercury Column Icon Time Display Value Unit Icon Data Transmission Icon Volume Icon Battery Level Icon User ID Icon Memory Icon Blood Pressure Variability Icon Last Systolic Blood Pressure (SYS) Last Diastolic Blood Pressure (DIA) Motion Prompt Last Pulse Rate 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Target Range Attainment Time 17 18 Korotkoff Sound Playback Icon 19 High Blood Pressure Prompt 20 21 Tachycardia Prompt 22 Diastolic Blood Pressure (DIA) Suggestive of Atrial Fibrillation (AFib) Prompt 23 24 Pulse Rate 25 Average Value Icon 26 27 Systolic Blood Pressure (SYS) 28 4567321 8 9 26 28 10 12 11 13 14 1516 1817201921 22 23 24 25 27 Refer to instruction manual/ booklet Temperature limit Humidity limitation Atmospheric pressure limitation Keep away from sunlight Keep dry Manufacturer Authorized representative in the European Community Un…

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Beijing Hanvon Health Technology Co., Ltd. 2025.11.28 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen STS Test Services 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, Client’s signature: Client’s name / title : Jack Yi / Manager Contact information / address: Room 162, 1st Floor and Room 256, 2nd Floor, Hanwang Building, Building 5, No.8 Dongbeiwangxi Road, Haidian District, Beijing 100193, China

(Beijing Hanvon Health Technology Co., Ltd.) (2025.11.28) 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:2BSXT-KSY3500A) [Beijing Hanvon Health 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) Jack Yi (Beijing Hanvon Health Technology Co., Ltd.) (2025.11.28) 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:2BSXT-KSY3500A) [Beijing Hanvon Health 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) Jack Yi

Beijing Hanvon Health Technology Co., Ltd. 2025.11.28 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Korotkoff Sound Blood Pressure Monitor Trademark: hanvon MODEL : KSY3500A, KSY3500B FCC ID : 2BSXT-KSY3500A 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 - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title : Jack Yi / Manager Contact information / address: Room 162, 1st Floor and Room 256, 2nd Floor, Hanwang Building, Building 5, No.8 Dongbeiwangxi Road, Haidian District, Beijing 100193, China

Beijing Hanvon Health Technology Co., Ltd. Model Difference 2025-11-28 EUT NAME: Korotkoff Sound Blood Pressure Monitor FCC ID: 2BSXT-KSY3500A MODEL : KSY3500A, KSY3500B All the model are the same circuit and RF module, except model names. Regards Sincerely Client’s signature: Client’s name / title : Jack Yi / Manager Contact information / address: Room 162, 1st Floor and Room 256, 2nd Floor, Hanwang Building, Building 5, No.8 Dongbeiwangxi Road, Haidian District, Beijing 100193, China

Page 1 of 9 FCC ID: 2BSXT-KSY3500A External Photos Page 2 of 9 FCC ID: 2BSXT-KSY3500A Page 3 of 9 FCC ID: 2BSXT-KSY3500A Page 4 of 9 FCC ID: 2BSXT-KSY3500A Page 5 of 9 FCC ID: 2BSXT-KSY3500A

Size:60*40mm Korotkoff Sound Blood Pressure Monitor FCC ID: 2BSXT-KSY3500A This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation Label location

Page 6 of 9 FCC ID: 2BSXT-KSY3500A Internal Photos Page 7 of 9 FCC ID: 2BSXT-KSY3500A Antenna Page 8 of 9 FCC ID: 2BSXT-KSY3500A Page 9 of 9 FCC ID: 2BSXT-KSY3500A

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. MPE Report Report No.: STS2512344H01 Issued for Beijing Hanvon Health Technology Co., Ltd. Room 162, 1st Floor and Room 256, 2nd Floor, Hanwang Building, Building 5, No.8 Dongbeiwangxi Road, Haidian District, Beijing 100193, China Product Name: Korotkoff Sound Blood Pressure Monitor Brand Name: hanvon Model Name: KSY3500A Series Model(s): KSY3500B FCC ID: 2BSXT-KSY3500A Test Standards: FCC 47CFR §2.1093 Page 2 of 8 Report No.: STS2512344H01 TEST REPORT Applicant’s Name ................. : Beijing Hanvon Health Technology Co., Ltd. Address ................................. : Room 162, 1st Floor and Room 256, 2nd Floor, Hanwang Building, Building 5, No.8 Dongbeiwangxi Road, Haidian District, Beijing 100193, China Manufacturer's Name ........... : Beijing Hanvon Health Technology Co., Ltd. Address ................................. : Room 162, 1st Floor and Room 256, 2nd Floor, Hanwang Building, Building 5, No.8 Dongbeiwangxi Road, Haidian District, Beijing 100193, China Product Description Product Name ........................ : Korotkoff Sound Blood Pressure Monitor Brand Name .......................... : hanvon Model Name .......................... : KSY3500A Series Model(s) ...................... : KSY3500B Test Standards ..................... : FCC 47CFR §2.1093 447498 D01 Interim General RF Exposure Guidance v06 The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. Date of Test ........................................... : Date of receipt of test item ...................... : 1 Dec. 2025 Date (s) of performance of tests ............. : 1 Dec. 2025 to 18 Dec. 2025 Date of Issue .......................................... : 18 Dec. 2025 Test Result .............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 8 Report No.: STS2512344H01 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 5 2. FCC 47CFR §2.1093 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 TEST RESULT 8 Page 4 of 8 Report No.: STS2512344H01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 18 Dec. 2025 STS2512344H01 ALL Initial Issue Page 5 of 8 Report No.: STS2512344H01 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name Korotkoff Sound Blood Pressure Monitor Brand Name hanvon Model Name KSY3500A Series Model(s) KSY3500B Model Difference All the model are the same circuit and RF module, except model names. Product Description The EUT is a Korotkoff Sound Blood Pressure Monitor Operation Frequency: 2402 – 2480 MHz Modulation Type: GFSK Antenna gain: 3.78dBi Antenna Designation: PCB antenna Power Rating DC 3.7V from battery, DC 5V from adapter Adapter Model: GJ12WA-0500100UW Input: AC 100-240V 50/60Hz 0.3A Output: DC 5V 1A Battery DC 3.7V Hardware Version N/A Software Version N/A 1.2 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 Page 6 of 8 Report No.: STS2512344H01 2. FCC 47CFR §2.1093 REQUIREMENT 2.1 TEST STANDARDS The limit for Maximum Permissible Exposure (MPE) specified in KDB 447498 D01 General RF Exposure Guidance v06 is followed. The gain of the antennas used in the product is extracted from the Antenna data sheets provided and also the maximum total power input to the antenna is measured. Through the Friis transmission formula and the maximum gain of the antenna, we can calculate the distance, away from the product, where the limit of MPE is reached. Although the Friis Transmission formula is far field assumption, the calculated result of that is an over-prediction for near field power density. It is taken as worst case to specify the safety range. 2.2 LIMIT Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. Page 7 of 8 Report No.: STS2512344H01 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 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 is applied to determine SAR test exclusion. Page 8 of 8 Report No.: STS2512344H01 2.3 TEST RESULT Maximum measured transmitter power. Worst Case Mode frequency Maximum Output Power Tune up tolerance Max Tune up GHz dBm dBm dBm GFSK(BLE) 2.44 -1.17 -1±1 0 Evaluation Result Mode Frequency Antenna Distance RF output power including tune up (dBm) SAR Test Exclusion Threshold SAR Test Exclusion Estimated SAR GHz mm dBm mw GFSK(BLE) 2.48 5 0 1 0.315 Yes / Note: 1. Remark: The worst case gain of the antenna is 3.78dBi. 2. Threshold at which no SAR required is 0.315≤ 3.0 for 1-g SAR, Separation distance ≤ 5mm. ※※※※※END OF THE REPORT※※※※※

Report No.: BL-SZ2590540-901 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-09-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China TEST REPORT Applicant: Beijing Hanvon Health Technology Co., Ltd. Address: Room 162, 1st Floor and Room 256, 2nd Floor, Hanwang Building, Building 5, No.8 Dongbeiwangxi Road, Haidian District, Beijing 100193, China Equipment Type: PCB antenna Model Name: KSY Brand Name: N/A Test Standard: IEEE Std 149-2021 Sample Arrival Date: Sep. 10, 2025 Test Date: Sep. 12, 2025 Date of Issue: Oct. 30, 2025 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Mai Jintian Checked by: Xia Long Approved by: Sunny Zou (Technical Director) _______________ _______________ _______________ Report No.: BL-SZ2590540-901 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-09-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Revision History Version Issue Date Revisions Rev. 01 Oct. 30, 2025 Initial Issue TABLE OF CONTENTS 1 GENERAL INFORMATION ........................................................................................................ 3 1.1 Test Laboratory .................................................................................................................. 3 1.2 Test Location ...................................................................................................................... 3 2 PRODUCT INFORMATION ....................................................................................................... 4 2.1 Applicant Information .......................................................................................................... 4 2.2 Manufacturer Information .................................................................................................... 4 2.3 General Description for Equipment under Test (EUT) ......................................................... 4 2.4 Ancillary Equipment ............................................................................................................ 4 3 SUMMARY OF TEST RESULTS ............................................................................................... 5 3.1 Test Standards ................................................................................................................... 5 3.2 Test Verdict ........................................................................................................................ 5 3.3 Test Uncertainty ................................................................................................................. 5 4 GENERAL TEST CONFIGURATIONS ...................................................................................... 6 4.1 Test Condition .................................................................................................................... 6 4.2 Test Equipment List ............................................................................................................ 6 4.3 Test Setup .......................................................................................................................... 7 4.4 Test Frequencies ................................................................................................................ 7 ANNEX A TEST RESULTS .......................................................................................................... 8 A.1 Gain and Efficiency ............................................................................................................. 8 A.2 VSWR ................................................................................................................................. 8 ANNEX B RADIATION PATTERN ............................................................................................... 9 ANNEX C TEST SETUP PHOTOS ............................................................................................ 13 ANNEX D EUT PHOTO.............................................................................................................. 13 Report No.: BL-SZ2590540-901 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-09-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 1 GENERAL INFORMATION 1.1 Test Laboratory Name Shenzhen BALUN Technology Co., Ltd. Address Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China Phone Number +86 755 6685 0100 1.2 Test Location Name Shenzhen BALUN Technology Co., Ltd. Location Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 1/F, Building B, Ganghongji High-tech Intelligent Industrial Park, No. 1008, Songbai Road, Yangguang Community, Xili Sub-district, Nanshan District, Shenzhen, Guangdong Province, P. R. China Report No.: BL-SZ2590540-901 Tel: +86-755-66850100 E-mail: [email protected] Page No. 4 / 14 Web: www.titcgroup.com Template No.: TRP-Passive-EN (2022-09-07) Add: Block B, 1/F, Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong Province, P. R. China 2 PRODUCT INFORMATION 2.1 Applicant Information Applicant Beijing Hanvon Health Technology Co., Ltd. Address Room 162, 1st Floor and Room 256, 2nd Floor, Hanwang Building, Building 5, No.8 Dongbeiwangxi Road, Haidian District, Beijing 100193, China 2.2 Manufacturer Information Manufacturer Beijing Hanvon Health Technology Co., Ltd. Address Room 162, 1st Floor and Room 256, 2nd Floor, Hanwang Building, Building 5, No.8 Dongbeiwangxi Road, Haidian District, Beijing 100193, China 2.3 General Description…

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Report No.: BL-SZ2590540-AA 1 / 1 EUT PHOTO --BLANK BELOW-- Antenna

Report No.: BL-SZ2590540-AO 1 / 1 TEST SETUP PHOTOS --BLANK BELOW--

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Radio Test Report Report No.: STS2512344W01 Issued for Beijing Hanvon Health Technology Co., Ltd. Room 162, 1st Floor and Room 256, 2nd Floor, Hanwang Building, Building 5, No.8 Dongbeiwangxi Road, Haidian District, Beijing 100193, China Product Name: Korotkoff Sound Blood Pressure Monitor Brand Name: hanvon Model Name: KSY3500A Series Model(s): KSY3500B FCC ID: 2BSXT-KSY3500A Test Standards: FCC Part15.247 Page 2 of 55 Report No.: STS2512344W01 TEST REPORT Applicant’s Name ................. : Beijing Hanvon Health Technology Co., Ltd. Address ................................. : Room 162, 1st Floor and Room 256, 2nd Floor, Hanwang Building, Building 5, No.8 Dongbeiwangxi Road, Haidian District, Beijing 100193, China Manufacturer's Name .......... : Beijing Hanvon Health Technology Co., Ltd. Address ................................. : Room 162, 1st Floor and Room 256, 2nd Floor, Hanwang Building, Building 5, No.8 Dongbeiwangxi Road, Haidian District, Beijing 100193, China Product Description Product Name ....................... : Korotkoff Sound Blood Pressure Monitor Brand Name .......................... : hanvon Model Name .......................... : ... : KSY3500A Series Model(s) .................... : KSY3500B Test Standards ..................... : FCC Part15.247 Test Procedure ...................... : ANSI C63.10-2020 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the IC requirements. And it is applicable only to the tested sample identified in the report. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test ........................................... : Date of receipt of test item ..................... : 01 Dec. 2025 Date (s) of performance of tests ............. : 01 Dec. 2025 to 18 Dec. 2025 Date of Issue .......................................... : 18 Dec. 2025 Test Result.............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 55 Report No.: STS2512344W01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 9 2.3 TEST SOFTWARE AND POWER LEVEL 10 2.4 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 10 2.5 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 11 2.6 EQUIPMENTS LIST 12 3. EMC EMISSION TEST 13 3.1 CONDUCTED EMISSION MEASUREMENT 13 3.2 TEST PROCEDURE 14 3.3 TEST SETUP 14 3.4 EUT OPERATING CONDITIONS 14 3.5 TEST RESULTS 15 4. RADIATED EMISSION MEASUREMENT 17 4.1 RADIATED EMISSION LIMITS 17 4.2 TEST PROCEDURE 19 4.3 TEST SETUP 20 4.4 EUT OPERATING CONDITIONS 20 4.5 FIELD STRENGTH CALCULATION 21 4.6 TEST RESULTS 22 5. CONDUCTED SPURIOUS & BAND EDGE EMISSION 31 5.1 LIMIT 31 5.2 TEST PROCEDURE 31 5.3 TEST SETUP 31 5.4 EUT OPERATION CONDITIONS 31 5.5 TEST RESULTS 31 6. POWER SPECTRAL DENSITY TEST 32 6.1 LIMIT 32 6.2 TEST PROCEDURE 32 Page 4 of 55 Report No.: STS2512344W01 Table of Contents Page 6.3 TEST SETUP 32 6.4 EUT OPERATION CONDITIONS 32 6.5 TEST RESULTS 32 7. BANDWIDTH TEST 33 7.1 LIMIT 33 7.2 TEST PROCEDURE 33 7.3 TEST SETUP 33 7.4 EUT OPERATION CONDITIONS 33 7.5 TEST RESULTS 33 8. PEAK OUTPUT POWER TEST 34 8.1 LIMIT 34 8.2 TEST PROCEDURE 34 8.3 TEST SETUP 34 8.4 EUT OPERATION CONDITIONS 34 8.5 TEST RESULTS 34 9. ANTENNA REQUIREMENT 35 9.1 STANDARD REQUIREMENT 35 9.2 EUT ANTENNA 35 APPENDIX 1-TEST DATA 36 DUTY CYCLE 36 MAXIMUM CONDUCTED OUTPUT POWER 39 -6DB BANDWIDTH 42 MAXIMUM POWER SPECTRAL DENSITY LEVEL 45 BAND EDGE 48 CONDUCTED RF SPURIOUS EMISSION 51 APPENDIX 2- EUT TEST PHOTO 55 Page 5 of 55 Report No.: STS2512344W01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 18 Dec. 2025 STS2512344W01 ALL Initial Issue Page 6 of 55 Report No.: STS2512344W01 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247 (a)(2) 6dB Bandwidth PASS -- 15.247 (b)(3) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247 (d) Conducted Spurious & Band Edge Emission PASS -- 15.247 (e) Power Spectral Density PASS -- 15.205 Restricted bands of operation PASS -- Part 15.247(d)/ Part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- Note: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2020. Page 7 of 55 Report No.: STS2512344W01 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.751dB 2 Unwanted Emissions, conducted ±2.888dB 3 All emissions, radiated 9K-30MHz ±2.48dB 4 All emissions, radiated 30M-1GHz ±2.52dB 5 All emissions, radiated 1G-18GHz ±3.48dB 6 All emissions, radiated>18GHz ±4.18dB 7 Conducted Emission (9KHz-150KHz) ±2.48dB 8 Conducted Emission (150KHz-30MHz) ±2.52dB 9 Occupied Channel Bandwidth ±3.6% 10 Power Spectral Density, conducted ±1.214dB 11 Duty Cy…

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Page 1 of 2 FCC ID: 2BSXT-KSY3500A Conducted emissions 30MHz-1GHz Page 2 of 2 FCC ID: 2BSXT-KSY3500A Spurious emissions