2BGAD-M1Wireless Lavalier Microphones set

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: ANTEK SERVICE INC FRN:0033437609 Contact Name:Shirley Kwok Address:901 N PENNSYLVANIA ST STE O DENVER, COLORADO 80203, USA Telephone No:+01 303-8006306 Email: [email protected] Applicant: Company name: Shenzhen Enzhao Technology Co., Ltd Product Description: Wireless Lavalier Microphones set Grantee code:2BGAD FCC ID:2BGAD-M1 FRN：0035396738 Contact Name:Li tao Address:1016-8,Jinji Jixiang Plaza, No. 31 Qinglinzhong Road, Ziwei Community, Longcheng Street,Longgang District, Shenzhen City, Guangdong Province, China Telephone No:19925434993 Email:[email protected] [Shenzhen Enzhao Technology Co., Ltd ] certifies that, as of the date of this filing of the application with the TCB, [ANTEK SERVICE INC] is our designated US agent for service of process for the above referenced FCC ID. [Shenzhen Enzhao Technology Co., Ltd ] accepts tomaintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any commission related proceeding involving equipment. [ANTEK SERVICE INC] accepts, as of the date ofthe filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. 1/1 Date: 2024/06/18 Applicant’s Name:Li taoUS Agent’s Name: Shirley Kwok Title:General ManagerTitle: General Manager SignatureSignature

C5266091_X24_Ed.2 1/1 “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: Shenzhen Enzhao Technology Co., Ltd Grantee code: 2BGAD FCC ID:2BGAD-M1 FRN：0035396738 Contact Name: Litao Address:1016-8,Jinji Jixiang Plaza, No. 31 Qinglinzhong Road, Ziwei Community, Longcheng Street,Longgang District, Shenzhen City, Guangdong Province, China Telephone No:19925434993 Fax No:N/A Email: [email protected] i.[ShenzhenEnzhaoTechnologyCo.,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. The applicant must sign this certification. ii. [ShenzhenEnzhaoTechnologyCo.,Ltd] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. [ShenzhenEnzhaoTechnologyCo.,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 . Date: 2024/05/15 Applicant’s Name:Li tao Title: General Manager Signature 1 The Commission’sCovered Listis published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment.https://www.fcc.gov/supplychain/coveredlist

ShenzhenEnzhaoTechnologyCo.,Ltd Product Similarity Declaration Product name:Wireless Lavalier Microphones set Model name: M1, M2, M3, M4, M5, M6, M7, M8, M9, M10 FCC ID:2BGAD-M1 We ( Shenzhen Enzhao 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 only difference is the model number. Signature: Name:Li tao Title: General Manager Place, date:Shanghai, 2024.05.15

C5266091_X8_Ed.1 1/1 Letter of Authorization Shenzhen Enzhao Technology Co., Ltd Company:Shenzhen Enzhao Technology Co., Ltd Address:1016-8,Jinji Jixiang Plaza,No. 31 Qinglinzhong Road, Ziwei Community,LongchengStreet,Longgang District, Shenzhen City, Guangdong Province, China Product Name: Wireless Lavalier Microphones set Model Number: M1, M2, M3, M4, M5, M6, M7, M8, M9, M10 FCC Identifier: 2BGAD-M1 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name:Li taoDate: 2024-05-15 Title: General Manager Signature of applicant:

C5266091_X10_Ed.2 1/1 ShenzhenEnzhaoTechnologyCo.,Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2024-05-15 Subject: Request for Confidentiality FCC ID: 2BGAD-M1 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/LocationNoNo Attestation StatementNoNo External PhotosNo ☒ Block Diagram ☒☐ Schematics ☒☐ Test ReportNoNo Test Setup PhotosNo ☒ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐☐ RF Exposure InfoNoNo Operational Description ☒☐ Cover Letter(s)NoNo SDR Software / Security Info ☐ No NOTE 1: Long‐Term Confidentiality may be permitted under special conditions (SeeII. LONG‐TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short‐Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ___180___ days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Nam e :Litao Title: General Manager

Lable: Wireless Lavalier Microphones set Model ： M1 FCC ID: 2BGAD‐M1 IC:32429‐M1

FCC ID:2BGAD-M1 RF Exposure Evaluation According toKDB 447498 D01 General RF Exposure Guidance v06and part 2.1093， Unless specifically required by thepublished RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the correspondingSAR Test Exclusion Thresholdcondition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances≤5mm,the1-gand10-gSARtest exclusion thresholds aredetermined by the following: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)]ꞏ[√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 thenearest mW and mm before calculation The result is rounded to one decimal place for comparison Here, So a SAR test is not required Mode Frequen cy (MHz) Max Power (dBm) Target power W/ tolerance (dBm) Max tune up power tolerance (dBm) Max Power (mW) Min. Distance (mm) Calc. thresholds limit BLEGFSK 2402-0.35 0 ± 1 11.2595.000.390 3.0 2440-0.04 0 ± 1 11.2595.000.393 3.0 2480-0.01 0 ± 1 11.2595.000.397 3.0

For 2400-2484MHz SMD CERAMIC ANTENNA CA-2450-31-A 3.2x1.6mm [EIA1206] Data Sheet HZ3216WA02 1 Manufacture's：OneWave Electronic Co., Ltd. ■Bluetooth ■IEEE8 02.11g/b ■Zigbee systems ■etc... Shapes And Dimensions Dimensions in mm Feature ■ Light weight, compact ■ Wide bandwidth, low cost ■ Built-in antenna with high gain LWAH 3 . 10±0 . 10 1 .55±0 . 10 0 .40±0 .20 0 . 55±0 . 1 SMD CERAMIC ANTENNA Application Data Sheet 2 ANT PAD TOP BOTTOM VIA Data Shee SMD CERAMIC ANTENNA t ANT PAD TOP BOTTOM Evaluation Board 3 Parameter Specification Units Frequency Band 2400~2483 MHz Polar ization Line * Peak Gain 2.67 dBi * Efficiency 72.30 % Im pendance 50 Ω Part Numbering System CA - 2450 - 31 - A Material Frequency Size Type Data Shee SMD CERAMIC ANTENNA t Electrical Characteristics per line(TA=25°C) 4 2.16 1.69 0.78 -0.13 -1.05 -1.96 -2.87 -3.78 -4.69 -5.61 -6.52 -7.43 -8.34 -9.26 - 10.2 - 11.1 -12 -12.9 Data Shee SMD CERAMIC ANTENNA t Radiation Patterns 2.4GHz WLAN BAND 2.42 1.09 0.36 -0.37 -1.09 -1.82 -2.54 -3.27 -4 -4.72 -5.45 -6.18 -6.9 -7.63 -8.35 -9.08 -9.81 - 10.5 2.67 1.34 0.5 -0.34 -1.18 -2.02 -2.86 -3.7 -4.54 -5.38 -6.22 -7.07 -7.91 -8.75 -9.59 - 10.4 - 11.3 - 12.1 ◎ 3D Gain Patte rn (2400 MHz) ◎ 3D Gain Pattern (2480 MHz) ◎ 3D Gain Pattern (2440 MHz) 5 Frequency Characteristics EFFICIENCY AND VSWR Data Shee SMD CERAMIC ANTENNA t 6 Data Shee SMD CERAMIC ANTENNA t RECOMMENDED REFLOW PROFILE Time(s) 150 2 00°C pr e heatin 20 - 4 0s 2 60 °C 217 °C 7 Feature Specifications Tolerances W 8 .00 ±0.30 P4.00±0.10 E1.75±0.10 F 3.50±0.10 P2 2.00 ±0.10 D 1.50 +0.10 - 0.00 Po4.00±0.10 10Po40.00 ±0.20 @copyright Electronics Data Shee SMD CERAMIC ANTENNA t Packaging Style REEL DIMENSIONS Quantity:5000pieces per 7 reel TAPE DIMEN SIONS 8

TEST REPORT FCC ID: 2BGAD-M1 Product:Wireless Lavalier Microphones set Model Name :M1, M2, M3, M4, M5, M6, M7, M8, M9, M10 Brand:N/A Report No.:NCT24017537E Prepared for Shenzhen Enzhao Technology Co., Ltd 1016-8,Jinji Jixiang Plaza, No. 31 Qinglinzhong Road, Ziwei Community,Longcheng Street,Longgang District, Shenzhen City, Guangdong Province, China Prepared by Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, People’s Republic of China TEL: 400-8868-419 FAX: 86-755-27790922 Report No.: NCT24017537E Page 2 of 48 Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn 1 TEST RESULT CERTIFICATION Applicant’s name: Shenzhen Enzhao Technology Co., Ltd Address: 1016-8,Jinji Jixiang Plaza, No. 31 Qinglinzhong Road, Ziwei Community,Longcheng Street,Longgang District, Shenzhen City, Guangdong Province, China Manufacture's name : Shenzhen Enzhao Technology Co., Ltd Address: 1016-8,Jinji Jixiang Plaza, No. 31 Qinglinzhong Road, Ziwei Community,Longcheng Street,Longgang District, Shenzhen City, Guangdong Province, China Product name: Wireless Lavalier Microphones set Model name: M1, M2, M3, M4, M5, M6, M7, M8, M9, M10 Standards: FCC CFR47 Part 15 Section 15.247 Test procedure: ANSI C63.10:2013 Date of test: Apr. 23, 2024 to May 08, 2024 Date of Issue: May 09, 2024 This device described above has been tested by NCT, and 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. This report shall not be reproduced except in full, without the written approval of NCT, this document may be altered or revised by NCT, personal only, and shall be noted in the revision of the document. Test Engineer: Keven Wu / Engineer Technical Manager: Henry Wang / Manager Report No.: NCT24017537E Page 3 of 48 Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn Contents Page 1 TEST RESULT CERTIFICATION...............................................................................................................................2 2 TEST SUMMARY.......................................................................................................................................................... 5 2.1 T ESTSITE............................................................................................................................................................6 3 GENERAL INFORMATION..........................................................................................................................................7 3.1 G ENERALDESCRIPTION OFE.U.T.....................................................................................................................7 3.2 C HANNELLIST..................................................................................................................................................... 8 3.3 T ESTSETUPCONFIGURATION............................................................................................................................9 3.4 T ESTMODE......................................................................................................................................................... 9 4 EQUIPMENT DURING TEST.................................................................................................................................... 10 4.1 E QUIPMENTSLIST............................................................................................................................................. 10 4.2 M EASUREMENTUNCERTAINTY......................................................................................................................... 12 4.3 D ESCRIPTION OFSUPPORTUNITS...................................................................................................................12 5 CONDUCTED EMISSION.......................................................................................................................................... 13 5.1 E.U.T. O PERATION............................................................................................................................................13 5.2 EUT S ETUP....................................................................................................................................................... 13 5.3 T ESTSET-UP (BLOCKDIAGRAM OFCONFIGURATION)................................................................................. 14 5.4 M EASUREMENTPROCEDURE............................................................................................................................14 5.5 C ONDUCTEDEMISSIONLIMIT........................................................................................................................... 14 5.6 M EASUREMENTDESCRIPTION.......................................................................................................................... 14 5.7 C ONDUCTEDEMISSIONTESTRESULT.............................................................................................................14 6 RADIATED SPURIOUS EMISSIONS...................................................................................................................... 17 6.1 EUT O PERATION...............................................................................................................................................17 6.2 T ESTSETUP...................................................................................................................................................... 18 6.3 S PECTRUMANALYZERSETUP.......................................................................................................................... 19 6.4 T ESTPROCEDURE.............................................................................................................................................20 6.5 S UMMARY OFTESTRESULTS................................…

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