2BVD7-ILM10Multi-person intercom smart Bluetooth device

WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: Mar. 25, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2BVD7-ILM10 WUXI YONGHUA INFORMATION 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: jack zhang Title:Manager Address: 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Tel.: +860 510 88158217 Email: [email protected]

1 | P a g e WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Attestation Statements To: Federal Communications Commission Date: Mar. 25, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: [2BVD7-ILM10] Product Name: [Multi-person intercom smart Bluetooth device] 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: jack zhang Title: Manager Address: 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Tel.: +860 510 88158217 Email: [email protected] 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) ☐ Evaluation Based on Scan for Software on the device ☐ Evaluation Based on Filesystem scan ☐ Evaluation Based on Running software check

WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: Mar. 25, 26 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: [2BVD7-ILM10] [WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD] (“the applicant”) certifies that, as of the date of the filing of the application, [AOGES CO., LIMITED] (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts to maintain an agent for service of process in the United States for no less than one 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. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. [AOGES CO., LIMITED] ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name:AOGES CO., LIMITED FRN:0033947847 Address:1624 Market St., Ste 226, #30327 Denver CO, 80202 US Signature: Contact Person: XIAOYAN LAI Tel:303 623 1940 Email: [email protected] Applicant Company Name: WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD FRN: 0037689718 Address: 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Signature: WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Contact Person: jack zhang Tel: +860 510 88158217 Email: [email protected]

WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China 3/25/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2BVD7-ILM10 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. Pursuant to DA 04-1705, the applicant also requests temporary confidential treatment of the exhibits outlined below for a period of (up to 180) days from the date of equipment authorization and prior to marketing in the United States to prevent the premature release of any sensitive information. Applicant is aware of their responsibility to notify DERYCOM in the event information regarding the product or the product is made available to the public before the requested period has expired.  User Manual  Internal Photos  External Photos  Test Setup Photos Sincerely, (Signature) Printed Name: jack zhang Title:Manager Address: 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Tel.: +860 510 88158217 Email: [email protected]

WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Date: Mar. 25, 26 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2BVD7-ILM10 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 (WUXI YONGHUA INFORMATION 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, Applicant Signature: Printed Name: jack zhang Title: Manager Address: 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Tel.: +860 510 88158217 Email: [email protected]

WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD Product Similarity Declaration Product name: Multi-person intercom smart Bluetooth device Model name: ILM10, ILM20, ILM30, ILM40 FCC ID: 2BVD7-ILM10 We (WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), the model names are different, the colors are different, but everything else is the same. Signature: Name: jack zhang Title: Manager China, 2026.03.18

FCC Label

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.:STS2508179H02 Issued for WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Product Name: Multi-person intercom smart Bluetooth device Brand Name: ILM Model Name: ILM10 Series Model(s): ILM20, ILM30, ILM40 FCC ID: 2BVD7-ILM10 Test Standards: FCC 47CFR §2.1093 Page 2 of 9 Report No.:STS2508179H02 TEST REPORT Applicant’s Name ................. : WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD Address ................................. : 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Manufacturer's Name ........... : WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD Address ................................. : 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Product Description Product Name ........................ : Multi-person intercom smart Bluetooth device Brand Name .......................... : ILM Model Name .......................... : ILM10 Series Model(s) ...................... : ILM20, ILM30, ILM40 Test Standards ..................... : FCC 47CFR §2.1093 447498 D04 Interim General RF Exposure Guidance v01 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 ...................... : 27 Aug. 2025 Date (s) of performance of tests ............. : 27 Aug. 2025 ~12 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 9 Report No.:STS2508179H02 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 9 Page 4 of 9 Report No.:STS2508179H02 Revision History Rev. Issue Date Report No. Effect Page Contents 00 12 Mar. 2026 STS2508179H02 ALL Initial Issue Page 5 of 9 Report No.:STS2508179H02 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name Multi-person intercom smart Bluetooth device Brand Name ILM Model Name ILM10 Series Model(s) ILM20, ILM30, ILM40 Model Difference The model names are different, the colors are different, but everything else is the same. Product Description The EUT is Multi-person intercom smart Bluetooth device Operation Frequency: Bluetooth: 2402 – 2480 MHz SRD: 2437.6Mhz Modulation Type: BLE:GFSK BT BR(1Mbps): GFSK BT EDR(2Mbps): π/4-DQPSK BT EDR(3Mbps): 8DPSK SRD: MSK Antenna gain: BT:2dBi SRD: 0dBi Antenna Designation: BT: Ceramic SRD: PCB Power Rating Input: 5V 1A Adapter N/A Battery Model: 603045 Brand: N/A Rated Voltage: 3.7V Charge Limit Voltage: 4.2V Capacity: 950mAh Hardware Version V2.0 Software Version V1.0 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 9 Report No.:STS2508179H02 2. FCC 47CFR §2.1093 REQUIREMENT 2.1 TEST STANDARDS Follow the maximum permissible exposure (MPE) limits specified in 447498 D04 Interim General Radio Frequency Exposure Guidelines v01. The gain of the antenna used in the product was extracted from the supplied antenna data sheet and the maximum total power input to the antenna was also measured. Calculate the distance from the product to the MPE limit by the formula. 2.2 LIMIT For single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph (b)(2) of this section): A single RF source is exempt if: (A) The available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption may not be used in conjunction with other exemption criteria other than those in paragraph (b)(3)(ii)(A) of Part 1.1307. Medical implant devices may only use this exemption and that in paragraph (b)(3)(ii)(A); (B) Or the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold Pth (mW) described in the following formula. This method shall only be used at separation distances (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by: Page 7 of 9 Report No.:STS2508179H02 (C) Or using below table and the minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. For the exemption in Table 1 to apply, R must be at least λ/2π, where λ is the free-space operating wavelength in meters. If the ERP of a single RF source is not easily obtained, then the available maximum time-averaged power may be used in lieu of ERP if the physical dimensions of the radiating structure(s) do not exceed the electrical length of λ/4 or if the antenna gain is less than that of a half-wave dipole (1.64 linear value). RF Source frequency (MHz) Threshold ERP(watts) 0.3-1.34 1,920 R 2 . 1.34-30 3,450 R 2 /f 2 . 30-300 3.83 R 2 . 300-1,500 0.0128 R 2 f. 1,500-100,000 19.2R 2 . Page 8 of 9 Report No.:STS2508179H02 For multiple RF sources: Multiple RF sources are exempt if: (A) The available maximum time-averaged power of each source is no more than 1 mW and there is a separation distance of two cen…

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Approval sheet Page 1 of 9 ASC_RFANT3216120A3T_V04 Apr. 2010 MULTILAYER CERAMIC ANTENNA RFANT Series – RoHS Compliance 2.4 GHz ISM Band Working Frequency P/N: RFANT3216120A3T Series *Contents in this sheet are subject to change without prior notice. Approval sheet Page 2 of 9 ASC_RFANT3216120A3T_V04 Apr. 2010 FEATURES 1. Surface Mounted Devices with a small dimension of 3.2 X 1.6 X1.2 mm 3 meet future miniaturization trend. 2. LTCC process 3. High stability in Temperature / Humidity Change APPLICATIONS 1. 2.4GHz ISM band RF applications 2. Bluetooth, Wireless, HomeRF CONSTRUCTION DIMENSIONS Figure Symbol Dimension (mm) L 3.20 ± 0.20 W 1.60 ± 0.10 T 1.20 ± 0.10 a 0.25 ± 0.15 1. Feeding 2. Identification Mark 3. Soldering terminal W T C a a L Approval sheet Page 3 of 9 ASC_RFANT3216120A3T_V04 Apr. 2010 Ground Soldering Pad 50 ΩTransmission Line Unit : mm 19.4 Empty Area 6x6 mm 50Ω ΩΩ ΩFeed line 45mm 20mm Series 1 Series 2 Ground Soldering Pad 50 ΩTransmission Line Unit : mm 19.4 Empty Area 6x6 mm 50Ω ΩΩ ΩFeed line 45mm 20mm Series 1 Series 2 ELECTRICAL CHARACTERISTICS RFANT3216120A3T Specification Working Frequency Range 2450 ± 50 MHz Fc (GHz) 2.7 Gain (dBi) 2 (Typical) Series 1 3.9nH Matching component valve Series 2 1.0nH * This frequency must be adjusted to 2.45GHz with matching circuit. SOLDER LAND PATTERN DESIGN Figure 1.66 0.8 2.3 1.63 6 3.43 1.6 6 1.36 0.36 0.88 0.34 1.88 1.83 0.8 0.54 1.66 0.8 2.3 1.63 6 3.43 1.6 6 1.36 0.36 0.88 0.34 1.88 1.83 0.8 0.54 Approval sheet Page 4 of 9 ASC_RFANT3216120A3T_V04 Apr. 2010 Antenna on Test Board ( Thickness 1.2mm) Antenna S11 on Test Board 0.8mm 1.6mm 19.4mm Empty Area 6x6 mm 50Ω ΩΩ ΩFeed line 1.66mm GROUND 0.8mm 1.6mm 19.4mm Empty Area 6x6 mm 50Ω ΩΩ ΩFeed line 1.66mm GROUND 0.8mm 1.6mm 19.4mm Empty Area 6x6 mm 50Ω ΩΩ ΩFeed line 1.66mm GROUND 0.8mm 1.6mm 19.4mm Empty Area 6x6 mm 50Ω ΩΩ ΩFeed line 1.66mm GROUND C Approval sheet Page 5 of 9 ASC_RFANT3216120A3T_V04 Apr. 2010 RADIATION PATTERN Radiation Pattern and Gain were dependent on measurement board design. The specification of RFANT3216120A3T antenna was measured based on the PCB size and installation position as shown in the below figure Test Board Vertical Horizontal Y - Z Plane Average Gain= 0.826 dBi Peak Gain = 2.08dBi Average Gain = 0.58 dBi Peak Gain= -6.67dBi Average Gain=-11.76dBi X - Z Plane Average Gain= -1.720 dBi Peak Gain= -7.42 dBi Average Gain= -12.38dBi Peak Gain= 1.14 dBi Average Gain= -2.11 dBi X - Y Plane Average Gain= -2.469 dBi Peak Gain= -9.24 dBi Average Gain= -15.15dBi Peak Gain= 1.63 dBi Average Gain= -2.71 dBi GROUND X Y Z GROUND X Y Z X Y Z Approval sheet Page 6 of 9 ASC_RFANT3216120A3T_V04 Apr. 2010 RELIABILITY TEST Test item Test condition / Test method Specification Solderability JIS C 0050-4.6 JESD22-B102D *Solder bath temperature：235 ± 5°C *Immersion time：2 ± 0.5 sec *Solder：Sn3Ag0.5Cu for lead-free At least 95% of a surface of each terminal electrode must be covered by fresh solder. Leaching (Resistance to dissolution of metallization) IEC 60068-2-58 *Solder bath temperature：260 ± 5°C *Leaching immersion time：30 ± 0.5 sec *Solder : SN63A Loss of metallization on the edges of each electrode shall not exceed 25%. Resistance to soldering heat JIS C 0050-5.4 *Preheating temperature：120~150°C, 1 minute. *Solder temperature：270±5°C *Immersion time：10±1 sec *Solder：Sn3Ag0.5Cu for lead-free Measurement to be made after keeping at room temperature for 24±2 hrs No mechanical damage. Samples shall satisfy electrical specification after test. Loss of metallization on the edges of each electrode shall not exceed 25%. Drop Test JIS C 0044 *Height：75 cm *Test Surface：Rigid surface of concrete or steel. *Times：6 surfaces for each units；2 times for each side. No mechanical damage. Samples shall satisfy electrical specification after test. Adhesive Strength of Termination JIS C 0051- 7.4.3 *Pressurizing force： 5N(≦0603)；10N(>0603) *Test time：10±1 sec No remarkable damage or removal of the termination. Bending test JIS C 0051- 7.4.1 The middle part of substrate shall be pressurized by means of the pressurizing rod at a rate of about 1 mm/s per second until the deflection becomes 1mm/s and then pressure shall be maintained for 5±1 sec. Measurement to be made after keeping at room temperature for 24±2 hours No mechanical damage. Samples shall satisfy electrical specification after test. Approval sheet Page 7 of 9 ASC_RFANT3216120A3T_V04 Apr. 2010 Temperature cycle JIS C 0025 1. 30±3 minutes at -40°C±3°C, 2. 10~15 minutes at room temperature, 3. 30±3 minutes at +85°C±3°C, 4. 10~15 minutes at room temperature, Total 100 continuous cycles Measurement to be made after keeping at room temperature for 24±2 hrs No mechanical damage. Samples shall satisfy electrical specification after test. Vibration JIS C 0040 *Frequency：10Hz~55Hz~10Hz(1min) *Total amplitude：1.5mm *Test times：6hrs.(Two hrs each in three mutually perpendicular directions) No mechanical damage. Samples shall satisfy electrical specification after test. High temperature JIS C 0021 *Temperature：85°C±2°C *Test duration：1000+24/-0 hours Measurement to be made after keeping at room temperature for 24±2 hrs No mechanical damage. Samples shall satisfy electrical specification after test. Humidity (steady conditions) JIS C 0022 *Humidity：90% to 95% R.H. *Temperature：40±2°C *Time：1000+24/-0 hrs. Measurement to be made after keeping at room temperature for 24±2 hrs ※ 500hrs measuring the first data then 1000hrs data No mechanical damage. Samples shall satisfy electrical specification after test. Low temperature JIS C 0020 *Temperature：-40°C±2°C *Test duration：1000+24/-0 hours Measurement to be made after keeping at room temperature for 24±2 hrs No mechanical damage. Samples shall satisfy electrical specification after test. Approval sheet Page 8 of 9 ASC_RFANT3216120A3T_V04 Apr. 2010 SOLDERING CONDITION Typical examples of soldering processes that provide reliable joints without any damage are given in Fig 2 Fig 2. Infrared sol…

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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.:STS2508179W04 Issued for WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Product Name: Multi-person intercom smart Bluetooth device Brand Name: ILM Model Name: ILM10 Series Model(s): ILM20, ILM30, ILM40 FCC ID: 2BVD7-ILM10 Test Standards: FCC Part15.247 Page 2 of 96 Report No.: STS2508179W04 TEST REPORT Applicant’s Name ................. : WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD Address .................................. : 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Manufacturer's Name ........... : WUXI YONGHUA INFORMATION TECHNOLOGY CO.LTD Address .................................. : 101 ROOM, No.5 BUILDING, No.2 FENGWEI RD, XISHANDISTRICT, WUXI CITY, JIANGSU PROVINCE, China Product Description Product Name ........................ : Multi-person intercom smart Bluetooth device Brand Name ........................... : ILM Model Name ........................... : ILM10 Series Model(s) .................... : ILM20, ILM30, ILM40 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 FCC 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 ......... : 27 Aug. 2025 Date (s) of performance of tests : 27 Aug. 2025 ~16 Sept. 2025 Date of Issue ............................. : 16 Sept. 2025 Test Result ................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 96 Report No.: STS2508179W04 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 FREQUENCY HOPPING SYSTEM REQUIREMENTS 10 2.4 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 12 2.5 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 13 2.6 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 14 2.7 EQUIPMENTS LIST 15 3. EMC EMISSION TEST 16 3.1 CONDUCTED EMISSION MEASUREMENT 16 3.2 RADIATED EMISSION MEASUREMENT 20 4. CONDUCTED SPURIOUS & BAND EDGE EMISSION 32 4.1 LIMIT 32 4.2 TEST PROCEDURE 32 4.3 TEST SETUP 33 4.4 EUT OPERATION CONDITIONS 33 4.5 TEST RESULTS 33 5. NUMBER OF HOPPING CHANNEL 34 5.1 LIMIT 34 5.2 TEST PROCEDURE 34 5.3 TEST SETUP 34 5.4 EUT OPERATION CONDITIONS 34 5.5 TEST RESULTS 34 6. AVERAGE TIME OF OCCUPANCY 35 6.1 LIMIT 35 6.2 TEST PROCEDURE 35 6.3 TEST SETUP 35 6.4 EUT OPERATION CONDITIONS 35 6.5 TEST RESULTS 35 7. HOPPING CHANNEL SEPARATION MEASUREMEN 36 7.1 LIMIT 36 Page 4 of 96 Report No.: STS2508179W04 Table of Contents Page 7.2 TEST PROCEDURE 36 7.3 TEST SETUP 36 7.4 EUT OPERATION CONDITIONS 36 7.5 TEST RESULTS 36 8. BANDWIDTH TEST 37 8.1 LIMIT 37 8.2 TEST PROCEDURE 37 8.3 TEST SETUP 37 8.4 EUT OPERATION CONDITIONS 37 8.5 TEST RESULTS 37 9. OUTPUT POWER TEST 38 9.1 LIMIT 38 9.2 TEST PROCEDURE 38 9.3 TEST SETUP 39 9.4 EUT OPERATION CONDITIONS 39 9.5 TEST RESULTS 39 10. ANTENNA REQUIREMENT 40 10.1 STANDARD REQUIREMENT 40 10.2 EUT ANTENNA 40 APPENDIX 1-TEST DATA 41 DWELL TIME 41 MAXIMUM PEAK CONDUCTED OUTPUT POWER 51 -20DB BANDWIDTH 57 CARRIER FREQUENCIES SEPARATION 63 NUMBER OF HOPPING CHANNEL 69 BAND EDGE 72 BAND EDGE(HOPPING) 79 CONDUCTED RF SPURIOUS EMISSION 86 APPENDIX 2-PHOTOS OF TEST SETUP 96 Page 5 of 96 Report No.: STS2508179W04 Revision History Rev. Issue Date Report No. Effect Page Contents 00 16 Sept. 2025 STS2508179W04 ALL Initial Issue Page 6 of 96 Report No.: STS2508179W04 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)(1) Hopping Channel Separation PASS -- 15.247(a)(1)&(b)(1) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247(d) Conducted Spurious & Band Edge Emission PASS -- 15.247(a)(1)(iii) Number of Hopping Frequency PASS -- 15.247(a)(1)(iii) Dwell Time PASS -- 15.247(a)(1) Bandwidth 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 96 Report No.: STS2508179W04 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 ±0.755dB 2 Unwanted Emissions, conducted ±2.874dB 3 All emissions, radiated 9K-30MHz ±3.80dB 4 All emissions, radiated 30M-1GHz ±4.18dB 5 All emissions, radiated 1G-6GHz ±4.90dB 6 All emissions, radiated>6G ±5.24dB 7 Conducted Emission (9KHz-150KHz) ±2.19dB 8 Conducted Emission (150KHz-30MHz) ±2.53dB 9 Occupied Channel Bandwidth ±3.5% 10 Dwell time ±3.2% Page 8 of 96…

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