2A6EB-RYYT021Audio System

User Manual IMMERSION feel every moment 23 Important Safety Information – To reduce the risk of fire, burns, electric shock or injury, always unplug this product from the electrical outlet before cleaning, connecting or removing parts. Always disconnect power and audio cords before moving your product. WARNING •Close supervision is necessary when this product is used by, or near children, or those with disabilities. •Use this product only for its intended use as described in these instructions. Do not use attachments not recommended by the manufacturer, it may cause damage or malfunction to the product when using third-party attachments. •Connect cords to properly grounded outlets only. •Keep all cords away from heated surfaces. •Do not use this product if the power cord or plug is damaged, if it’s not functioning correctly, or if it has been dropped, damaged, or submerged in water. For assistance, please contact the customer service department at the store where you made your purchase. •When disconnecting the power cord from an AC outlet always pull the plug . •Do not run power cords under rugs or carpets, or place heavy objects directly on them. •Do not open electronic units. •Never drop or insert any object into any opening, as it may cause damage or malfunction to the product. •If water falls inside electronics, disconnect from the AC power source immediately. •For indoor use only. Do not operate in wet or damp environments—use exclusively in dry areas. •Do not operate where aerosol (spray) products are being used or where oxygen is being administered. •Keep upholstery away from flames or lit cigarettes. Upholstery may burn rapidly, with toxic gas and thick smoke. Fires that begin elsewhere in a home may spread and involve upholstery. For your safety, always use a properly installed smoke detector with working batteries. •Sit down in the unit slowly. To avoid tip over, do not throw your weight against the back of the unit. Move the unit into or out of the reclining position slowly, making sure that no children or pets are in close proximity. •To safely exit the unit and prevent a tripping hazard, bring the back upright and close the legrest. •Check the condition of the power supplies, electrical cords, plugs, and connectors often. Keep the power supplies and electrical cords away from heat sources. Never operate the unit with a damaged power supply, electrical cord, plug, or connector. •Do not use unit if power control is damaged or wet. •Before moving the product, disconnect the electrical plug from the wall outlet and secure the mechanism to prevent unexpected opening or movement. Never move the product by the mechanism, legrest, handle or reclining back. Disconnect modular units. •Do not attempt to disassemble or service the pump or motor; no serviceable parts are inside. •Keep hands, arms and body parts away from the open area between a reclined back and an upright back on a motion sofa or modular. This area must remain clear at all times to provide unobstructed movement and prevent injury that could occur when a reclined back is returning toward the upright position. •Do not allow electrical cord to be pinched between moving parts or between the frame and the floor. Do not place cord under carpet or in a location where it could become worn. •Do not attempt to disconnect the power plug by pulling the power cord. Always hold the power plug and pull it out. •Do not move the units while connected together. The purpose of the bracket system is to connect the units and prevent them from being separated while on the floor. The bracket system does not provide adequate structural support for the movement of connected units. •If you give this product to someone else, include this Operating Instructions manual. When using a SoundSphere TM Immersive Sound Product, basic precautions should always be followed, including: Read all instructions before using this product. 4 5 Getting Started Welcome to Next Level Audio 5 What's Included6 Setup and Operation Set Up Your SoundSphere Product7 Connect to Your Smart Device or TV 14 Und erstanding the Speaker Controls Selecting Sound Mode s Ope rating the Remote Control Linking Multiple Products 26 Maintenance and Support Troubleshooting Tips Resetting Your System 34 Limited Warranty Information 34 Technical Specifications 35 FCC NOTE 36 Table of Contents Welcome to Next Level Audio Thank you for choosing a product featuring immersive sound technology. This guide is designed to walk you through the setup process and help you make the most of your new system. Please review this guide to ensure you set up your system correctly and fully enjoy all its features. Follow the clear voice prompts for seamless wireless pairing or hardwired connection. Scan the QR code to watch step-by-step setup videos for your SoundSphere product. For customer support, please contact us at: [email protected] Everything That Makes It Epic: •Invisible Surround Sound Theater-quality audio built right into your seat. Choose a wired connection for peak performance or go wireless for flexibility. •Immersive 4D Experience Feel every moment with integrated speakers, deep bass, and synchronized vibrations that bring your audio content to life. •Customized Audio Modes Choose from four preset sound modes to tailor your listening experience to games, movies, music, and the news. •Premium Audio, Your Way Fine-tune your volume, bass, treble, balance and vibrations for a customized experience. Getting Started 24 22 20 30 6 7 SoundSphere Immersive Sound System Controller What’s Included NOTE – The included controller varies by model. SoundSphere Power Cord / Product Power Cord Wireless Remote Control The remote control needs to be equipped with two 7-cell batteries. (not provided) Control Panel Your product includes either a built-in Control Panel or a Remote Control to operate the SoundSphere system. Media Box AUX Cable Media Box Power Cord ACCESSORIES Set Up Your SoundSphere Prod…

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Zhuhai Rongyuan Electronic Technology Co.,Ltd 3rd and 4th floors, Phase 1, No. 2 Pingbei 2nd Road, Nanping Science and Technology Industrial Park, Zhuhai City, Guangdong Province, China Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: Apr. 20, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2A6EB-RYYT021 Zhuhai Rongyuan Electronic 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, established pursuant to § 1.50002 of reference chapter, as an entity producing “covered” communication equipment. The equipment for which authorization is sought is not “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List that prohibited from receiving an equipment authorization pursuant to section § 2.903 of the FCC rules. Sincerely yours, Applicant Signature Printed Name: Huangbo Lan Title:R&D Manager Address: 3rd and 4th floors, Phase 1, No. 2 Pingbei 2nd Road, Nanping Science and Technology Industrial Park, Zhuhai City, Guangdong Province, China Tel.: 13823290620 Email: [email protected]

Zhuhai Rongyuan Electronic Technology Co.,Ltd (3rd and 4th floors, Phase 1, No. 2 Pingbei 2nd Road, Nanping Science and Technology Industrial Park, Zhuhai City, Guangdong Province, China) 1 | P a g e Attestation Statements To: Federal Communications Commission Date: Apr. 20, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: 2A6EB-RYYT021 Product Name: Audio System This letter serves as an attestation that the equipment identified above ☐ is / ☒ is not ( select one) "covered" software as defined under the Federal Communications Commission (FCC) Covered List requirements, as outlined in FCC 22- 84 and KDB 986446. Specifically, the undersigned certifies that the equipment for which authorization is sought: 1.Does not contain cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors, assignees, parents, subsidiaries, affiliates, or any entity that has rebranded or relabeled software produced by the aforementioned entities. 2.Does not have the capability to store, run, or deliver any software identified on the FCC Covered List, including but not limited to cybersecurity and anti-virus software. To support this attestation, the appendix evaluation documentation has been prepared and is included in the certification filing. This attestation is based on a thorough evaluation of the device's design, functionality, and software environment. The undersigned affirms that the information provided is accurate and complete to the best of their knowledge. Sincerely yours, Applicant Signature Printed Name: Huangbo Lan Title:R&D Manager Address: 3rd and 4th floors, Phase 1, No. 2 Pingbei 2nd Road, Nanping Science and Technology Industrial Park, Zhuhai City, Guangdong Province, China Tel.: 13823290620 Email: [email protected] Zhuhai Rongyuan Electronic Technology Co.,Ltd (3rd and 4th floors, Phase 1, No. 2 Pingbei 2nd Road, Nanping Science and Technology Industrial Park, Zhuhai City, Guangdong Province, China) 2 | P a g e Evaluation regarding to the Covered List Software: Compliance Methodology Evaluation Process Results Device is Inherent compliance ☒ The Chipset(s) used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ The Memory used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ There is storage capacity limitation for store or install the Cybersecurity or anti-virus software. Compliance ☒ Operating system used is limited to run, install or deliver the Cybersecurity or anti-virus software. Compliance Device is not Inherent compliance ☐ Evaluation Based on Software Bill of Materials (SBoM) See attached “SBoM“ Note:The SBoM content is limited to the scope of covered list software (e.g. antivirus and cybersecurity software). ☐ Evaluation Based on Scan for Software on the device ☐ Evaluation Based on Filesystem scan ☐ Evaluation Based on Running software check

Zhuhai Rongyuan Electronic Technology Co.,Ltd 3rd and 4th floors, Phase 1, No. 2 Pingbei 2nd Road, Nanping Science and Technology Industrial Park, Zhuhai City, Guangdong Province, China (Apr. 20, 26) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2A6EB-RYYT021 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request permanent confidential treatment of the exhibits accompanying this certification application as outlined below : ⎯ Block Diagram ⎯ Schematics ⎯ Operational Description The above exhibits contain trade secrets and/or proprietary information that are not publicly available and materials that the Applicant has spent considerable efforts in developing. Public disclosure of these may be harmful to the Applicant and give an unfair advantage to competitors on the market. Sincerely, (Sincerely) Name:Huangbo Lan Title:R&D Manager Address: 3rd and 4th floors, Phase 1, No. 2 Pingbei 2nd Road, Nanping Science and Technology Industrial Park, Zhuhai City, Guangdong Province, China Tel.: 13823290620 Email: [email protected]

Zhuhai Rongyuan Electronic Technology Co.,Ltd 3rd and 4th floors, Phase 1, No. 2 Pingbei 2nd Road, Nanping Science and Technology Industrial Park, Zhuhai City, Guangdong Province, China (Apr. 20, 26) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID:2A6EB-RYYT021 I, the undersigned, hereby authorize (Shenzhen STS Test Services Co., Ltd.) to act on our behalf in all matters relating to this application for equipment certification. Any act carried out by (Shenzhen STS Test Services Co., Ltd.) shall have the same effect as our own and I acknowledge that all responsibility for complying with the terms and conditions of certification, as specified by DERYCOM CERTIFICATION SERVICES, INC., still resides with (Zhuhai Rongyuan Electronic Technology Co.,Ltd ). We certify that we are not subject to a denial of federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862, and that no party to the application, as defined in 47 CFR §1.2002(b), is subject to a denial of federal benefits that includes FCC benefits pursuant to that section. Sincerely, (Sincerely) (Full name of contact person listed on FCC’s website)：Huangbo Lan (Title): R&D Manager Tel: 13823290620 Fax: / Email: [email protected]

Zhuhai Rongyuan Electronic Technology Co.,Ltd Model Difference 2026-04-20 EUT NAME: Audio System FCC ID: 2A6EB-RYYT021 MODEL : RYYT021, RYYT021-2A, RYYT021-2B, RYYT021-3A, RYYT021-3B, RYYT021-4A, RYYT021-4B, RYYT021-4C, RYYT021-4D, RYYT021A, RYYT021B, RYYT021C, RYYT021D, RYYT021E All the model are the same circuit and RF module, except model names. Regards Sincerely Client’s signature: Client’s name / title : Huangbo Lan / R&D Manager Contact information / address: 3rd and 4th floors, Phase 1, No. 2 Pingbei 2nd Road, Nanping Science and Technology Industrial Park, Zhuhai City , Guangdong Province, China

FCC ID: 2A6EB-RYYT021 External Photos FCC ID: 2A6EB-RYYT021 FCC ID: 2A6EB-RYYT021 FCC ID: 2A6EB-RYYT021

Label & label location Size:20*10mm FCC ID: 2A6EB-RYYT021

FCC ID: 2A6EB-RYYT021 Internal Photos FCC ID: 2A6EB-RYYT021 BT8961B6 BT+BLE Antenna BT8922B2 BLE Antenna FCC ID: 2A6EB-RYYT021 FCC ID: 2A6EB-RYYT021 Receiving Antenna

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.:STS2603372H01 Issued for Zhuhai Rongyuan Electronic Technology Co.,Ltd 3rd and 4th floors, Phase 1, No.2 Pingbei 2nd Road, Nanping Science and Technology lndustrial Park, Zhuhai City, Guangdong Province, China Product Name: Audio System Brand Name: N/A Model Name: RYYT021 Series Model(s): RYYT021-2A, RYYT021-2B, RYYT021-3A, RYYT021-3B, RYYT021-4A, RYYT021-4B, RYYT021-4C, RYYT021-4D, RYYT021A, RYYT021B, RYYT021C, RYYT021D, RYYT021E FCC ID: 2A6EB-RYYT021 Test Standard: FCC 47CFR §2.1091 Page 2 of 7 Report No.: STS2603372H01 TEST REPORT Applicant’s Name ................. : Zhuhai Rongyuan Electronic Technology Co.,Ltd Address ................................. : 3rd and 4th floors, Phase 1, No.2 Pingbei 2nd Road, Nanping Science and Technology lndustrial Park, Zhuhai City, Guangdong Province, China Manufacturer's Name ........... : Zhuhai Rongyuan Electronic Technology Co.,Ltd Address ................................. : 3rd and 4th floors, Phase 1, No.2 Pingbei 2nd Road, Nanping Science and Technology lndustrial Park, Zhuhai City, Guangdong Province, China Product Description Product Name ........................ : Audio System Brand Name .......................... : N/A Model Name .......................... : RYYT021 Series Model(s) ...................... : RYYT021-2A, RYYT021-2B, RYYT021-3A, RYYT021-3B, RYYT021-4A, RYYT021-4B, RYYT021-4C, RYYT021-4D, RYYT021A, RYYT021B, RYYT021C, RYYT021D, RYYT021E Test Standards ..................... : FCC 47CFR §2.1091 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 ...................... : 5 Mar. 2026 Date (s) of performance of tests ............. : 5 Mar. 2026~11 Mar. 2026 Date of Issue .......................................... : 12 Mar. 2026 Test Result .............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 7 Report No.: STS2603372H01 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 5 2. FCC 47CFR §2.1091 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 TEST RESULT 7 Page 4 of 7 Report No.: STS2603372H01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 12 Mar. 2026 STS2603372H01 ALL Initial Issue Page 5 of 7 Report No.: STS2603372H01 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name Audio System Brand Name N/A Model Name RYYT021 Series Model(s) RYYT021-2A, RYYT021-2B, RYYT021-3A, RYYT021-3B, RYYT021-4A, RYYT021-4B, RYYT021-4C, RYYT021-4D, RYYT021A, RYYT021B, RYYT021C, RYYT021D, RYYT021E Model Difference All the model are the same circuit and RF module, except model names. Product Description The EUT is Audio System Operation Frequency: Bluetooth: 2402~2480 MHz Modulation Type: GFSK, π/4-DQPSK(2Mbps), 8DPSK Antenna gain: 1.7 dbi Antenna Designation: Internal Antenna Power Rating DC 29V From Adapter Adapter Manufacture: Dongguan Guanjin Electronics Technology Co., Ltd Model No.:K200A2900500E1 Input: AC 100-240V 50/60Hz 4.0A Output: 29.0V5.0A 145.0W Battery N/A 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 7 Report No.: STS2603372H01 2. FCC 47CFR §2.1091 REQUIREMENT 2.1 TEST STANDARDS The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1310 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 According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environmental impact of the human exposure to radio-frequency (RF) radiation as specified in 1.1307 (b) Limits for Maximum Permissible Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm²) Limits for Occupational / controlled Exposures 300 - 1500 -- -- F/300 3.0-30 1842/f 4.89/f *(900/f²) 1500 – 100000 -- -- 5.0 Limits for General population / Uncontrolled Exposure 300 - 1500 -- -- F/1500 1.34-30 824/f 2.19/f *(180f²) 1500 – 100000 -- -- 1.0 F= Frequency in MHz Friss Formula Friss Transmission Formula: Pd = (Pout * G) / (4*pi*r²) Where Pd = power density in mW/cm² Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 R = Distance between observation point and the center of radiator in cm If we know the maximum gain of the antenna and the total output power to the antenna, through calculation, we will know MPE value at distance 20cm. Page 7 of 7 Report No.: STS2603372H01 2.3 TEST RESULT Tune up Mode Detector Tune up Power BLE PK 5±1dBm BT PK -1±1dBm Multiple transmission: BT+BLE=0.0003+0.0012=0.0015＜1 Note: 1. The Maxinum power is less than the limit, complies with the exemption requirements. 2. ERP = EIRP - 2.15 ※※※※※END OF THE REPORT※※※※※ Protocol Fre…

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Productspecification QuickReferenceDate Allthetechnicaldataandinformationcontainedhereinaresubjecttochangewithoutpriornotice AntennaLayout&moduleonthesystemboard AntennaGain GainTable TheEnvironmentofAntennaRadiationPattern

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.:STS2603372W01 Issued for Zhuhai Rongyuan Electronic Technology Co.,Ltd 3rd and 4th floors, Phase 1, No. 2 Pingbei 2nd Road, Nanping Science and Technology Industrial Park, Zhuhai City, Guangdong Province, China Product Name: Audio System Brand Name: N/A Model Name: RYYT021 Series Model(s): RYYT021-2A, RYYT021-2B, RYYT021-3A, RYYT021-3B, RYYT021-4A, RYYT021-4B, RYYT021-4C, RYYT021-4D, RYYT021A, RYYT021B, RYYT021C, RYYT021D, RYYT021E FCC ID: 2A6EB-RYYT021 Test Standards: FCC Part15.247 Page 2 of 109 Report No.: STS2603372W01 TEST REPORT Applicant’s Name ................. : Zhuhai Rongyuan Electronic Technology Co.,Ltd Address ................................. : 3rd and 4th floors, Phase 1, No. 2 Pingbei 2nd Road, Nanping Science and Technology Industrial Park, Zhuhai City, Guangdong Province, China Manufacturer's Name .......... : Zhuhai Rongyuan Electronic Technology Co.,Ltd Address ................................. : 3rd and 4th floors, Phase 1, No. 2 Pingbei 2nd Road, Nanping Science and Technology Industrial Park, Zhuhai City, Guangdong Province, China Product Description Product Name ....................... : Audio System Brand Name .......................... : N/A Model Name .......................... : ... : RYYT021 Series Model(s) .................... : RYYT021-2A, RYYT021-2B, RYYT021-3A, RYYT021-3B, RYYT021-4A, RYYT021-4B, RYYT021-4C, RYYT021-4D, RYYT021A, RYYT021B, RYYT021C, RYYT021D, RYYT021E 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 ..................... : 5 Mar. 2026 Date (s) of performance of tests ............. : 5 Mar. 2026~11 Mar. 2026 Date of Issue .......................................... : 12 Mar. 2026 Test Result.............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 109 Report No.: STS2603372W01 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 21 5. CONDUCTED SPURIOUS & BAND EDGE EMISSION 48 5.1 LIMIT 48 5.2 TEST PROCEDURE 48 5.3 TEST SETUP 48 5.4 EUT OPERATION CONDITIONS 48 5.5 TEST RESULTS 48 6. POWER SPECTRAL DENSITY TEST 49 6.1 LIMIT 49 6.2 TEST PROCEDURE 49 Page 4 of 109 Report No.: STS2603372W01 Table of Contents Page 6.3 TEST SETUP 49 6.4 EUT OPERATION CONDITIONS 49 6.5 TEST RESULTS 49 7. BANDWIDTH TEST 50 7.1 LIMIT 50 7.2 TEST PROCEDURE 50 7.3 TEST SETUP 50 7.4 EUT OPERATION CONDITIONS 50 7.5 TEST RESULTS 50 8. PEAK OUTPUT POWER TEST 51 8.1 LIMIT 51 8.2 TEST PROCEDURE 51 8.3 TEST SETUP 51 8.4 EUT OPERATION CONDITIONS 51 8.5 TEST RESULTS 51 9. ANTENNA REQUIREMENT 52 9.1 STANDARD REQUIREMENT 52 9.2 EUT ANTENNA 52 APPENDIX 1-TEST DATA 53 APPENDIX 2- EUT TEST PHOTO 109 Page 5 of 109 Report No.: STS2603372W01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 12 Mar. 2026 STS2603372W01 ALL Initial Issue Page 6 of 109 Report No.: STS2603372W01 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 109 Report No.: STS2603372W01 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 Band…

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Page 68 of 109 Report No.: STS2603372W01 PSD NVNT BLE 2M 2440MHz PSD NVNT BLE 2M 2480MHz Page 69 of 109 Report No.: STS2603372W01 Band Edge Condition Mode Frequency (MHz) Max Value (dBc) Limit (dBc) Verdict NVNT BLE 1M 2402 -50.1 -20 Pass NVNT BLE 1M 2480 -60.35 -20 Pass NVNT BLE 2M 2402 -38.08 -20 Pass NVNT BLE 2M 2480 -59.51 -20 Pass Page 70 of 109 Report No.: STS2603372W01 Test Graphs Band Edge NVNT BLE 1M 2402MHz Ref Band Edge NVNT BLE 1M 2402MHz Emission Page 71 of 109 Report No.: STS2603372W01 Band Edge NVNT BLE 1M 2480MHz Ref Band Edge NVNT BLE 1M 2480MHz Emission Page 72 of 109 Report No.: STS2603372W01 Band Edge NVNT BLE 2M 2402MHz Ref Band Edge NVNT BLE 2M 2402MHz Emission Page 73 of 109 Report No.: STS2603372W01 Band Edge NVNT BLE 2M 2480MHz Ref Band Edge NVNT BLE 2M 2480MHz Emission Page 74 of 109 Report No.: STS2603372W01 Conducted RF Spurious Emission Condition Mode Frequency (MHz) Max Value (dBc) Limit (dBc) Verdict NVNT BLE 1M 2402 -23.4 -20 Pass NVNT BLE 1M 2440 -23.39 -20 Pass NVNT BLE 1M 2480 -24.7 -20 Pass NVNT BLE 2M 2402 -25.27 -20 Pass NVNT BLE 2M 2440 -28.52 -20 Pass NVNT BLE 2M 2480 -24.95 -20 Pass Page 75 of 109 Report No.: STS2603372W01 Test Graphs Tx. Spurious NVNT BLE 1M 2402MHz Ref Tx. Spurious NVNT BLE 1M 2402MHz Emission Page 76 of 109 Report No.: STS2603372W01 Tx. Spurious NVNT BLE 1M 2440MHz Ref Tx. Spurious NVNT BLE 1M 2440MHz Emission Page 77 of 109 Report No.: STS2603372W01 Tx. Spurious NVNT BLE 1M 2480MHz Ref Tx. Spurious NVNT BLE 1M 2480MHz Emission Page 78 of 109 Report No.: STS2603372W01 Tx. Spurious NVNT BLE 2M 2402MHz Ref Tx. Spurious NVNT BLE 2M 2402MHz Emission Page 79 of 109 Report No.: STS2603372W01 Tx. Spurious NVNT BLE 2M 2440MHz Ref Tx. Spurious NVNT BLE 2M 2440MHz Emission Page 80 of 109 Report No.: STS2603372W01 Tx. Spurious NVNT BLE 2M 2480MHz Ref Tx. Spurious NVNT BLE 2M 2480MHz Emission Page 81 of 109 Report No.: STS2603372W01 BT8961B6 Duty Cycle Condition Mode Frequency (MHz) Duty Cycle (%) Correction Factor (dB) NVNT BLE 1M 2402 65.08 1.87 NVNT BLE 1M 2440 64.52 1.9 NVNT BLE 1M 2480 64.52 1.9 NVNT BLE 2M 2402 58.29 2.34 NVNT BLE 2M 2440 58.29 2.34 NVNT BLE 2M 2480 57.98 2.37 Page 82 of 109 Report No.: STS2603372W01 Test Graphs Duty Cycle NVNT BLE 1M 2402MHz Duty Cycle NVNT BLE 1M 2440MHz Page 83 of 109 Report No.: STS2603372W01 Duty Cycle NVNT BLE 1M 2480MHz Duty Cycle NVNT BLE 2M 2402MHz Page 84 of 109 Report No.: STS2603372W01 Duty Cycle NVNT BLE 2M 2440MHz Duty Cycle NVNT BLE 2M 2480MHz Page 85 of 109 Report No.: STS2603372W01 Maximum Conducted Output Power Condition Mode Frequency (MHz) Conducted Power (dBm) Limit (dBm) Verdict NVNT BLE 1M 2402 -1.09 30 Pass NVNT BLE 1M 2440 -1.57 30 Pass NVNT BLE 1M 2480 -0.79 30 Pass NVNT BLE 2M 2402 -1.25 30 Pass NVNT BLE 2M 2440 -1.31 30 Pass NVNT BLE 2M 2480 -1.82 30 Pass Page 86 of 109 Report No.: STS2603372W01 Test Graphs Power NVNT BLE 1M 2402MHz Power NVNT BLE 1M 2440MHz Page 87 of 109 Report No.: STS2603372W01 Power NVNT BLE 1M 2480MHz Power NVNT BLE 2M 2402MHz Page 88 of 109 Report No.: STS2603372W01 Power NVNT BLE 2M 2440MHz Power NVNT BLE 2M 2480MHz Page 89 of 109 Report No.: STS2603372W01 -6dB Bandwidth Condition Mode Frequency (MHz) -6 dB Bandwidth (MHz) Limit -6 dB Bandwidth (MHz) Verdict NVNT BLE 1M 2402 0.655 0.5 Pass NVNT BLE 1M 2440 0.652 0.5 Pass NVNT BLE 1M 2480 0.65 0.5 Pass NVNT BLE 2M 2402 1.126 0.5 Pass NVNT BLE 2M 2440 1.124 0.5 Pass NVNT BLE 2M 2480 1.111 0.5 Pass Page 90 of 109 Report No.: STS2603372W01 Test Graphs -6dB Bandwidth NVNT BLE 1M 2402MHz -6dB Bandwidth NVNT BLE 1M 2440MHz Page 91 of 109 Report No.: STS2603372W01 -6dB Bandwidth NVNT BLE 1M 2480MHz -6dB Bandwidth NVNT BLE 2M 2402MHz Page 92 of 109 Report No.: STS2603372W01 -6dB Bandwidth NVNT BLE 2M 2440MHz -6dB Bandwidth NVNT BLE 2M 2480MHz Page 93 of 109 Report No.: STS2603372W01 Maximum Power Spectral Density Level Condition Mode Frequency (MHz) Conducted PSD (dBm/3kHz) Limit (dBm/3kHz) Verdict NVNT BLE 1M 2402 -17.2 8 Pass NVNT BLE …

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