2BHBG-WTU-02wireless microphone transmitter

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. •Increase the separation between the equipment and receiver. •Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. •Consult the dealer or an experienced radio/TV technician for help. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. 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. The device has been evaluated to meet general RF exposure requirement. FCC Warning Statement:

Shenzhen Engete Electronic Technology Co., Ltd. 7/17/2024 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: 2BHBG-WTU-02 Shenzhen Engete Electronic 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. Sincerely, Name: Shijie Zheng Title: Manager Shenzhen Engete Electronic Technology Co., Ltd. 7/17/2024 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: 2BHBG-WTU-02 Shenzhen Engete 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 as an entity producing “covered” equipment. Sincerely, Name: Shijie Zheng Title: Manager

US Agent for Service of Process LETTER OF ATTESTATION TO:. Office of Engineering Technolog y Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: AOCE Corporation Inc. FRN: 0033401381 Contact Na me: Johnson.wang Telephone: 1-346 582-5234 Ema il: [email protected] A pplicant: Company name:Shenzhen Engete Electronic Technology Co., Ltd. FCC ID:2BHBG-WTU-02, 2BHBG-BT-58 FRN:0035615251 Contact Name :Shijie zheng Email: :[email protected] Address:E207, Hedong Building, Haoyunlai Plaza, Baoan District 80, Hedong Community, Xixiang Street, Baoan District, Shenzhen City [Shenzhen Engete Electronic Technology Co., Ltd.] certifies that, as of the date of this filing of the application with the TCB, [AOCE Corporation Inc. ] is our d esignated US agent for service of process for the above referenced FCC ID. [Shenzhen Engete Electronic Technology Co., Ltd.] accepts to maintain an agent for no less than one y ear after the grantee has terminated all marketing and importation or the conclusion of any commission related proceeding involving equipment. [AOCE Corporation Inc. ] accepts, a s of the date of the 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 F CC 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. Date: 07/17/2024 Applicant's Name:Shijie zhen Title:Manager 如)设气 Signature 1/1 US Agent's Name: Johnson.wang Title: Manager Signature

Difference Description We Shenzhen Engete Electronic Technology Co., Ltd. state: Product name: wireless microphone transmitter Model: WTU-02, WTU-03, E208, E209, WTU-04, WTU-05, WTU-06 Only the name is different, and the functions, software, and circuits of all models are the same. Signature: July 17, 2024 Name Shijie Zheng Position Manager Company Name Shenzhen Engete Electronic Technology Co., Ltd. Address E207, Hedong Building, Haoyunlai Plaza, Baoan District 80, Hedong Community, Xixiang Street, Baoan District, Shenzhen City Tel +86 13138125878 Fax / Email [email protected]

Shenzhen Engete Electronic Technology Co., Ltd. 7/17/2024 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR Product Name: wireless microphone transmitter FCC ID: 2BHBG-WTU-02 Model(s): WTU-02, WTU-03, E208, E209, WTU-04, WTU-05, WTU-06 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 (Schematic Diagram, Block Diagram, Operational Description) required to be submitted with this application be permanently withheld from public review. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market Please contact me if there is any information you may need. Sincerely, Signature: July 17, 2024 Name Shijie Zheng Position Manager Company Name Shenzhen Engete Electronic Technology Co., Ltd. Address E207, Hedong Building, Haoyunlai Plaza, Baoan District 80, Hedong Community, Xixiang Street, Baoan District, Shenzhen City Tel +86 13138125878 Fax / Email [email protected]

Shenzhen Engete Electronic Technology Co., Ltd. 7/17/2024 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen PSI Testing 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, Signature: July 17, 2024 Name Shijie Zheng Position Manager Company Name Shenzhen Engete Electronic Technology Co., Ltd. Address E207, Hedong Building, Haoyunlai Plaza, Baoan District 80, Hedong Community, Xixiang Street, Baoan District, Shenzhen City Tel +86 13138125878 Fax / Email [email protected]

Page 1 of 4 Report No.: psi2405049-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China Appendix II external photos FCC ID: 2BHBG-WTU-02 Page 2 of 4 Report No.: psi2405049-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China Page 3 of 4 Report No.: psi2405049-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China Page 4 of 4 Report No.: psi2405049-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China ------End------

Label Location FCC ID: 2BHBG-WTU-02 Model No.: WTU-02

Page 1 of 3 Report No.: psi2405049-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China Appendix III internal photos FCC ID: 2BHBG-WTU-02 Page 2 of 3 Report No.: psi2405049-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China Antenna Location Page 3 of 3 Report No.: psi2405049-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China ------End------

FCC ID: 2BHBG-WTU-02 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China RF Exposure evaluation According to 447498 D01 General RF Exposure Guidance v06 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 FM: Worse case output power is as below: [557.3MHz: 2.65dBm] Antenna Gain is -2.71dBi Maximum output power is 2.65dBm (1.84mW). (1.84mW /5mm)·[√0.5573 (GHz)]= 0.27<3.0 for 1-g SAR Then SAR evaluation is not required

Fuzhou JieLei Electronic Technology Co.,Ltd. 1 Specification CUSTOMER： CUSTOMER P/N: DESCRIPTION： P/N: PART NO： ；V1.0 FrankWenSenSean 2019.07.292019.07.292019.07.29 © 2019-2020 Fu Zhou Jie Lei Corporation. All rights reserved. All content, materials, and programs in this document, including all code, text, graphics, and logos, unless otherwise noted, are the property of Jie Lei Corporation and cannot be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of Jie Lei Corporation. Jie Lei Corporation may have patents or pending patent applications, t rademarks, copyrights, or other in tellectual property rights covering subject matter in this document. The furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property rights except expressly provided in any written license agreement from Jie Lei. Manufacturer: Fuzhou JieLei Electronic Technology Co., Ltd Address: C1, Zone C, R&F Center, South of Shangpu Road, Ninghua Street, Taijiang District, Fuzhou City, Fujian Province Spring Antenna WTU-02 Fuzhou JieLei Electronic Technology Co.,Ltd. 2 Connet 1. Electrical Performance........................................................................................................3 2. Measurement Setup.............................................................................................................4 2.1TEST Equipment........................................................................................................................................................ 5 3. Mechanical Dimension Drawing........................................................................................ 6 Fuzhou JieLei Electronic Technology Co.,Ltd. 3 1. Electrical Performance A.Electrical Characteristics S.W.R Frequency Range(MHz ＜2.0@550-570MHz ) Impedanc 550-570MHz e50 Ohm Gain MAX：-2.71dBi@550-570MHz B.Material Phosphorus copper nickel plating C.Environmental Operation Temperature-20°C~65°C Storage Temperature Fuzhou JieLei Electronic Technology Co.,Ltd. 4 2. Measurement Setup (1)Reflection coefficient Measurement: (a)Instrument: Network Analyzer (b)Setup: (I )Calibrate the NetworkAnalyzer by one port calibration usingAgilent calibration kits. (II )Connect the antenna under test to the NetworkAnalyzer (III )Measure the S11 ( reflection coefficient) shown in Fig.1 Fig.1 Measure S11 on Network Analyze Fuzhou JieLei Electronic Technology Co.,Ltd. 5 Max: 5 Min: -30 Scale: 5/div Max: 5 Min: -30 Max: 5 Min: -30 Scale: 5/divScale: 5/div 565MHz 565MHz565MHz unit:dBi unit:dBi unit:dBi Fuzhou JieLei Electronic Technology Co.,Ltd. 6 3. Mechanical Dimension Drawing

Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China FCC TEST REPORT FCC ID: 2BHBG-WTU-02 On Behalf of Shenzhen Engete Electronic Technology Co., Ltd. wireless microphone transmitter Model No.: WTU-02, WTU-03, E208, E209, WTU-04, WTU-05, WTU-06 Prepared for : Shenzhen Engete Electronic Technology Co., Ltd. Address : E207, Hedong Building, Haoyunlai Plaza, Baoan District 80, Hedong Community, Xixiang Street, Baoan District, Shenzhen City Prepared By : Shenzhen PSI Testing Co., Ltd. Address : 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China Report Number : psi2405049-C01-R01 Date of Receipt : May 15, 2024 Date of Test : May 15, 2024- June 17, 2024 Date of Report : June 18, 2024 Version Number : V0 Page 2 of 32 Report No.: psi2405049-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China TABLE OF CONTENTS Description Page 1. Summary Of Standards And Results ------------------------------------------------------------------------------- 5 1.1. Description of Standards and Results ----------------------------------------------------------------------- 5 2. General Information ----------------------------------------------------------------------------------------------------- 6 2.1. Description of Device (EUT) ----------------------------------------------------------------------------------- 6 2.2. Accessories of Device (EUT) ---------------------------------------------------------------------------------- 7 2.3. Tested Supporting System Details---------------------------------------------------------------------------- 7 2.4. Block Diagram of Connection Between EUT and Simulators ------------------------------------------ 7 2.5. Test Mode Description ------------------------------------------------------------------------------------------- 8 2.6. Test Conditions ---------------------------------------------------------------------------------------------------- 9 2.7. Test Facility --------------------------------------------------------------------------------------------------------- 9 2.8. Measurement Uncertainty -------------------------------------------------------------------------------------- 9 2.9. Test Equipment List -------------------------------------------------------------------------------------------- 10 3. Spurious Emission ----------------------------------------------------------------------------------------------------- 11 3.1. Test Limits -------------------------------------------------------------------------------------------------------- 11 3.2. Test setup --------------------------------------------------------------------------------------------------------- 11 3.3. Test Procedure -------------------------------------------------------------------------------------------------- 12 3.4. Test Results ------------------------------------------------------------------------------------------------------ 13 4. Power Line Conducted Emission --------------------------------------------------------------------------------- 19 4.1. Test Limits -------------------------------------------------------------------------------------------------------- 19 4.2. Test Procedure -------------------------------------------------------------------------------------------------- 19 4.3. Test Setup -------------------------------------------------------------------------------------------------------- 19 4.4. Test Results ------------------------------------------------------------------------------------------------------ 20 5. Conducted Maximum Output Power ----------------------------------------------------------------------------- 23 5.1. Test limits --------------------------------------------------------------------------------------------------------- 23 5.2. Test Procedure -------------------------------------------------------------------------------------------------- 23 5.3. Test Setup -------------------------------------------------------------------------------------------------------- 23 5.4. Test Results ------------------------------------------------------------------------------------------------------ 23 6. Bandwidth ---------------------------------------------------------------------------------------------------------------- 24 6.1. Test limits --------------------------------------------------------------------------------------------------------- 24 6.2. Test Procedure -------------------------------------------------------------------------------------------------- 24 6.3. Test Setup -------------------------------------------------------------------------------------------------------- 24 6.4. Test Results ------------------------------------------------------------------------------------------------------ 24 7. Necessary Bandwith Test -------------------------------------------------------------------------------------------- 27 7.1. Test Setup -------------------------------------------------------------------------------------------------------- 27 7.2. Test Limit ---------------------------------------------------------------------------------------------------------- 27 7.3. Test Procedure -------------------------------------------------------------------------------------------------- 28 7.4. Test Results ------------------------------------------------------------------------------------------------------ 28 8. Frequency stability----------------------------------------------------------------------------------------------------- 29 8.1. Test limit -----------------------------------…

Text truncated - open the document above for the full version.

Page 1 of 2 Report No.: psi2405049-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China Appendix I Test Setup Photo FCC ID: 2BHBG-WTU-02 Spurious Radiation Emissions Test (<1G) Spurious Radiation Emissions Test (＞1G) Page 2 of 2 Report No.: psi2405049-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2/F., Building 5, Yudafu Industrial Park, No.10, Xingye West Road, Shajing Subdistrict, Bao'an District, Shenzhen, Guangdong, China Power Line Conducted Emission ------End------