DD4ADX1X55SBodypack Transmitter

120623-17 rev 9 Certification Application Attestation Statements Date: August 9, 2024 American Certification Body, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 To Whom It May Concern: Statement for 47 CFR section 2.911(d)(5)(i) _____Shure Incorporated _____ certifies that as of the date of the application the equipment for which authorization is sought is not “covered” equipment 1 prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, including affiliates or subsidiaries of the named companies, the applicant must include an explanation on why the equipment is not “covered” equipment. Additional Explanation: <N/A> Statement for 47 CFR section 2.911(d)(5)(ii) _____Shure Incorporated _____ (“the applicant”) certifies that, as of the date of the filing of this application, the applicant ☐ - is / ☐ - is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates – see KDB 986446 Question 5) as an entity producing “covered” equipment. Thank you, By: __________________________ ______ Juan Castrejon______ (Signature 2 ) (Print name) Title: ___ Engineer Associate Staff, GC ______ Company: ___ Shure Incorporated ______ Telephone: _____ 847-600-8651 ______ 1 - The Commission’s Covered List is 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 . 2 - Letters must be placed on appropriate letterhead.

09 2723-17 Rev 9 U.S. Agent Designation for Service of Process (Applicant is Both Grantee and U.S. Agent) TO: American Certification Body, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 ATTENTION: FCC Certification – Section 2.911(d)(7) Information This letter is to confirm that the Applicant will also serve as the U.S. Agent for Service of Process as required by 47 CFR 2.911(d)(7). The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The Applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information changes. Applicant Company name: Shure Incorporated FRN #: 0030683478 Grantee Code: DD4 Contact Name: Juan Castrejon Street Address: 5800 W. Touhy Ave City/Province/Zip: Niles/ Illinois/ 60714-4608 Telephone No: 847-600-8651 Email: [email protected] Applicant Signature 1 : Date: August 9, 2024 Signed by (Printed Name/Title): Juan Castrejon / Engineer Associate Staff, GC 1 - Letters must be placed on appropriate letterhead. The signee for the applicant must be one of the following: Applicant ( grantee) contact of record in the FCC’s authorization system, or authorized officers or employee of the applicant (grantee).

Declaration letter For our business issue and marketing requirement, we would like to list different model number as following: FCC ID: DD4ADX1X55S Model No.: ADX1 X55, ADX1LEMO3 X55 Model Difference: ADX1 X55 and ADX1LEMO3 X55 are completely same except external audio connector, ADX1 X55 contains TQG connector, while ADX1LEMO3 X55 contains LEMO3 connector. Please find EUT external photos for detailed information. Signature: Print Name: Juan Castrejon Title: Engineer Associate Staff Company: Shure Incorporated Date: September 2, 2024

050222-17 Request for Confidentiality Date: September 6, 2024 Subject: Confidentiality Request for: ___DD4ADX1X55S___ Pursuant to FCC 47 CFR 0.457(d) and 0.459 and/or IC RSP-100, Section 12.4, the applicant requests that a part of the subject application(s) be held confidential. Type of Confidentiality Requested Exhibit ☐ Short Term ☒ Permanent Block Diagrams ☒ Short Term --------------------------- External Photos ☒ Short Term ☐ Permanent * 1 Internal Photos ☐ Short Term ☒ Permanent Operation Description/Theory of Operation ☐ Short Term ☒ Permanent Parts List & Placement/BOM ☐ Short Term ☒ Permanent Tune-Up Procedure ☐ Short Term ☒ Permanent Schematics ☒ Short Term --------------------------- Test Setup Photos ☒ Short Term ☐ Permanent * 1 User’s Manual _____ Shure Incorporated ____ has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality: The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Short-Term Confidentiality for FCC Applications: The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of __ (180) 2 ___ days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify ACB in the event information regarding the product or the product is made available to the public before the requested period has expired. ACB will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705. Short Term Confidentiality for Industry Canada Applications: Starting May 2022, ISED will recognize short term confidentiality on certain exhibits until the intended date of marketing. The applicant requests the exhibits selected above as short term confidential be withheld from public view until: (specify ISED expiration date / date of marketing) . Sincerely, By: Engineer Associate Staff ______ Juan Castrejon ______ (Signature/Title 3 ) (Print name) 1 - The asterisked items (*) require further information to be provided to ACB before permanent confidentiality will be extended to these exhibits. Please refer to FCC KDB 726920 and the specific Document link for D01 found at: https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=41731 and review section II, 3) regarding specific information that must accompany these requests. 2 - Please refer to https://acbcert.com/documents/misc-docs/Memo-Short-Term-Vs-Standard-Confidentiality.pdf for complete details. 3 - Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead.

DeclarationofAuthorization We Name:ShureIncorporated Address:5800WestTouhyAvenue,Niles,IL60714-4608,USA Declarethat: NameRepresentativeofagent:MarlinChen AgentCompanyname:MRTTechnology(Suzhou)Co.,Ltd Address:D8Building,YouxinIndustrialPark,No.2 Tian'edangRd.,WuzhongEconomicDevelopment Zone City:Suzhou Country:China isauthorizedtoapplyforCertificationofthefollowingproduct(s): Product:BodypackTransmitter FCCID:DD4ADX1X55S ModelNo.:ADX1X55,ADX1LEMO3X55 Sincerely, Signature： PrintName:JuanCastrejon Title:EngineerAssociateStaff Company:ShureIncorporated Date:August28,2024

La bel and Label Location – ADX1 X55 TQG connector LEMO3 connector

MRT Technology (Suzhou) Co., Ltd Report No.: 2407RSU039-U11 Phone: +86-512-66308358 Report Version: V01 Web: www.mrt-cert.com Issue Date: 2024-08-31 Template Version:0.0 1 of 50 SAR MEASUREMENT REPORT FCC ID: DD4ADX1X55S Applicant: Shure Incorporated Product: Bodypack Transmitter Model No.: ADX1 X55, ADX1LEMO3 X55 Brand Name: , FCC Rule Part(s): FCC 47 CFR Part 2.1093 Result: Complies Received Date: 2024-07-18 Test Date: 2024-08-20 Reviewed By: Jame Yuan Approved By: Robin Wu The test results relate only to the samples tested. This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in IEEE1528, KDB 447498 and KDB 865664. Test results reported herein relate only to the item(s) tested. The test report shall not be reproduced except in full without the written approval of MRT Technology (Suzhou) Co., Ltd. Report No.: 2407RSU039-U11 2 of 50 Revision History Report No. Version Description Issue Date Note 2407RSU039-U11 V01 Initial Report 2024-08-31 Valid Report No.: 2407RSU039-U11 3 of 50 CONTENTS Description Page 1. General Information ............................................................................................................................... 5 1.1. Applicant ...................................................................................................................................... 5 1.2. Manufacturer ................................................................................................................................ 5 1.3. Testing Facility ............................................................................................................................. 5 1.4. Product Information ...................................................................................................................... 6 1.5. Radio Specification under Test .................................................................................................... 7 1.6. Antennas Details .......................................................................................................................... 7 2. Summary of Test Result ........................................................................................................................ 8 2.1. Test Standards ............................................................................................................................. 8 2.2. Environment Condition ................................................................................................................. 8 2.3. RF Exposure Limits ...................................................................................................................... 8 2.4. Test Result Summary .................................................................................................................. 9 3. Specific Absorption Rate (SAR) .......................................................................................................... 10 3.1. Introduction ................................................................................................................................ 10 3.2. Definition .................................................................................................................................... 10 4. DASY6 Measurement System.............................................................................................................. 11 4.1. Introduction ................................................................................................................................ 11 4.2. DASY6 Measurement System Diagram .................................................................................... 11 4.3. System Components Details...................................................................................................... 12 5. The SAR Measurement Procedure ..................................................................................................... 23 5.1. Measurement Process Diagram ................................................................................................ 23 5.2. Test Position Definition .............................................................................................................. 24 5.3. Test Procedure .......................................................................................................................... 27 6. System Verificaiton .............................................................................................................................. 30 6.1. SAR Tissue Check ..................................................................................................................... 30 6.2. SAR System Check ................................................................................................................... 33 7. Analysis and Results ........................................................................................................................... 35 7.1. Antenna Location ....................................................................................................................... 35 7.2. Conducted Power ...................................................................................................................... 36 7.3. SAR Test Results ....................................................................................................................... 37 8. Simultaneous Transmission Analysis ................................................................................................ 39 9. Measuring Instrument .......................................................................................................................... 40 10. Measurement Uncertainty .................................................................................................................... 41 Annex A - System Check Result .............…

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Return Loss and Impedance Indicated By Head Tissue Meas. Items Original Value Current Value Deviation Return Loss(dB) -32.9 -31.01 -5.74% Impedance 49.4Ω - 2.16jΩ 51.34Ω + 2.52jΩ 1.94Ω Real part 4.68Ω Imaginary part Test Date: 2024/0 8/01

Measurements of Shure Axient Digital ADX1 UHF and 2.4 GHz Antennas For Regulatory Approval Shure Incorporated August 19, 2024 Prepared by Adem Celebi, Ph.D. Table of Contents 1. Shure ADX1 – Body Pack Transmitter .................................................................................................. 3 1.1 Design Overview and Reference Angles ........................................................................................ 3 1.2 Test Setup ....................................................................................................................................... 5 2. Test Results ............................................................................................................................................. 7 2.1 ADX1 UHF Antenna (Dipole/Monopole Type) ................................................................................ 7 2.1.1 ADX1 G56 (operating band 470-636MHz) ......................................................................... 7 2.1.2 ADX1 G57 (operating band 470-616MHz) ......................................................................... 8 2.1.3 ADX1 G62 (operating band 510-530MHz) ......................................................................... 9 2.1.4 ADX1 K54 (operating band 606-663MHz) ....................................................................... 10 2.1.5 ADX1 K55 (operating band 606-694MHz) ....................................................................... 11 2.1.6 ADX1 K57 (operating band 606-790MHz) ....................................................................... 12 2.1.7 ADX1 JB (operating band 806-810MHz) ......................................................................... 13 2.1.8 ADX1 X55 (operating band 941-960MHz) ....................................................................... 14 2.1.9 ADX1 X56 (operating band 960-1000MHz) ..................................................................... 15 2.2 ADX1 Zigbee Antenna (Conformal Custom Type) ........................................................................ 16 2.2.1 Antenna A - SMA Side (operating band 2405-2483.5MHz) ............................................. 16 2.2.2 Antenna B - SMA Side (operating band 2405-2483.5MHz) ............................................. 17 1. Shure ADX1 – Bodypack Transmitter 1.1 Design Overview and Reference Angles Figure 1 Shure ADX1 UHF and Zigbee Antennas Overview Figure 2 Shure ADX1 UHF and Zigbee Antennas Block Diagram 1.2 Test Setup Figure 3 Shure ADX1 Reference Angles Figure 4 Photo of Shure ADX1 in Antenna Chamber Supporting Test Equipment List and Software: - E5071C ENA series Vector Network Analyzer 100kHz-8.5GHz - ETS Model 2090 Multi Device Controller - ETS Lindgren Model 3164-10 3164-10 Open Boundary Quad-Ridged Horn 400MHz-10GHz - ETS Lindgren Model 3126-2450 Precision Sleeve Dipole - ETS Lindgren Model 3122D-DB4 Tuned Dipole Antenna - EMQuest Data Acquisition and Analysis Software 2. Test Results 2.1 ADX1 UHF Antenna (Dipole/Monopole Type) 2.1.1 ADX1 G56 (operating band 470-636MHz, Antenna Model: 95D9043) Peak Gain Parameter Type Pattern 470 MHz 553 MHz 636 MHz UHF Antenna Dipole Omni -3.0 dBi 0 dBi -0.2 dBi Figure 5 – ADX1 (G56) 3D radiation patterns and scale at max peak gain 2.1.2 ADX1 G57 (operating band 470-616MHz, Antenna Model: 95D9043) Peak Gain Parameter Type Pattern 470 MHz 543 MHz 616 MHz UHF Antenna Dipole Omni -3.0 dBi -0.2 dBi 0.4 dBi Figure 6 – ADX1 (G57) 3D radiation patterns and scale at max peak gain 2.1.3 ADX1 G62 (operating band 510-530MHz, Antenna Model: 95G9043) Peak Gain Parameter Type Pattern 510 MHz 520 MHz 530 MHz UHF Antenna Dipole Omni 0 0.2 dBi -0.4 dBi Figure 7 – ADX1 (G62) 3D radiation patterns and scale at max peak gain Shure Axient Digital ADX1 2.1.10 ADX1 K54 (operating band 606-663MHz, Antenna Model: 95E9043) Peak Gain Parameter Type Pattern 606 MHz 650 MHz 663 MHz UHF Antenna Dipole Omni 0.3 dBi 0.5 dBi 0.6 dBi Figure 8 – ADX1 (K54) 3D radiation patterns and scale at max peak gain

Shure Axient Digital ADX1 2.1.5 ADX1 K55 (operating band 606-694MHz, Antenna Model: 95E9043) Peak Gain Parameter Type Pattern 606 MHz 650 MHz 694 MHz UHF Antenna Dipole Omni 0.3 dBi 0.5 dBi 0.6 dBi Figure 9 – ADX1 (K55) 3D radiation patterns and scale at max peak gain Shure Axient Digital ADX1 2.1.6 ADX1 K57 (operating band 606-790MHz, Antenna Model: 95F9043) Peak Gain Parameter Type Pattern 606 MHz 698 MHz 790 MHz UHF Antenna Dipole Omni -2.5 dBi 0.1 dBi 0.6 dBi Figure 10 – ADX1 (K57) 3D radiation patterns and scale at max peak gain Shure Axient Digital ADX1 2.1.8 ADX1 JB (operating band 806-810MHz, Antenna Model: 95F9043) Peak Gain Parameter Type Pattern 806 MHz 808 MHz 810 MHz UHF Antenna Dipole Omni 0.8 dBi 0.8 dBi 0.8 dBi Figure 11 – ADX1 (JB) 3D radiation patterns and scale at max peak gain Shure Axient Digital ADX1 2.1.8 ADX1 X55 (operating band 941-960MHz, Antenna Model: 95H9043) Peak Gain Parameter Type Pattern 941 MHz 950 MHz 960 MHz UHF Antenna Dipole Omni 0.1 dBi 0.1 dBi 0.1 dBi Figure 12 – ADX1 (X55) 3D radiation patterns and scale at max peak gain Shure Axient Digital ADX1 2.1.10 ADX1 X56 (operating band 960-1000MHz, Antenna Model: 95H9043) Peak Gain Parameter Type Pattern 960 MHz 980 MHz 1000 MHz UHF Antenna Dipole Omni 0.1 dBi 0.1 dBi 0.1 dBi Figure 13 – ADX1 (X56) 3D radiation patterns and scale at max peak gain Shure Axient Digital ADX1 2.2 ADX1 Zigbee Antenna (Conformal Custom Type) 2.2.1 Antenna A - SMA Side (operating band 2405-2483.5MHz, Antenna Model: 90A35383) Peak Gain Parameter Type Pattern 2405 MHz 2445 MHz 2483.5 MHz Zigbee Antenna A Conformal Custom Omni 0 dBi 2 dBi 1.3 dBi Figure 14 – ADX1 Zigbee Antenna A – SMA side - 3D radiation patterns and scale at max peak gain Shure Axient Digital ADX1 2.2.2 Antenna B - SMA Side (operating band 2405-2483.5MHz, Antenna Model: 90B35383) Peak Gain Parameter Type Pattern 2405 MHz 2445 MHz 2483.5 MHz Zigbee Antenna B Conformal Custom Omni 0 dBi 2 dBi 1.3 dBi Figure 15 – ADX1 Zigbee Antenna B – TQG/LEMO side - 3D radiation patterns and scale at max peak gain

MRT Technology (Suzhou) Co., Ltd Report No.: 2407RSU039-U8 Phone: +86-512-66308358 Report Version: V01 Web: www.mrt-cert.com Issue Date: 2024-09-05 Template Version:0.0 1 of 45 RF MEASUREMENT REPORT FCC ID: DD4ADX1X55S Applicant: Shure Incorporated Product: Bodypack Transmitter Model No.: ADX1 X55, ADX1LEMO3 X55 Trademark: , FCC Classification: Digital Transmission System (DTS) FCC Rule Part(s): Part 15 Subpart C (Section 15.247) Result: Complies Received Date: 2024-07-18 Test Date: 2024-08-25 ~ 2024-08-28 Reviewed By: Jame Yuan Approved By: Robin Wu The test results relate only to the samples tested. This equipment has been shown to be capable of compliance with the applicable technical standards as indicated in the measurement report and was tested in accordance with the measurement procedures specified in ANSI C63.10-2013. Test results reported herein relate only to the item(s) tested. The test report shall not be reproduced except in full without the written approval of MRT Technology (Suzhou) Co., Ltd. Report No.: 2407RSU039-U8 2 of 45 Revision History Report No. Version Description Issue Date Note 2407RSU039-U8 V01 Initial Report 2024-09-05 Valid Report No.: 2407RSU039-U8 3 of 45 CONTENTS Description Page 1. General Information ................................................................................................................................ 5 1.1. Applicant ...................................................................................................................................... 5 1.2. Manufacturer ................................................................................................................................ 5 1.3. Testing Facility ............................................................................................................................. 5 1.4. Product Information ...................................................................................................................... 6 1.5. Radio Specification under Test .................................................................................................... 6 1.6. Working Frequencies ................................................................................................................... 7 2. Test Configuration ................................................................................................................................... 8 2.1. Test Mode ..................................................................................................................................... 8 2.2. Test System Connection Diagram................................................................................................ 8 2.3. Test Software ............................................................................................................................... 8 2.4. Applied Standards ........................................................................................................................ 8 2.5. Test Environment Condition ......................................................................................................... 9 3. Antenna Requirements ......................................................................................................................... 10 4. Measuring Instrument ........................................................................................................................... 11 5. Decision Rules and Measurement Uncertainty .................................................................................. 12 5.1. Decision Rules ........................................................................................................................... 12 5.2. Measurement Uncertainty .......................................................................................................... 12 6. Test Result .............................................................................................................................................. 13 6.1. Summary .................................................................................................................................... 13 6.2. 6dB Bandwidth Measurement .................................................................................................... 14 6.2.1. Test Limit .................................................................................................................................... 14 6.2.2. Test Procedure ........................................................................................................................... 14 6.2.3. Test Setting ................................................................................................................................ 14 6.2.4. Test Setup .................................................................................................................................. 14 6.2.5. Test Result ................................................................................................................................. 14 6.3. Output Power Measurement ...................................................................................................... 15 6.3.1. Test Limit .................................................................................................................................... 15 6.3.2. Test Procedure ........................................................................................................................... 15 6.3.3. Test Setting ................................................................................................................................ 15 6.3.4. Test Setup .................................................................................................................................. 15 6.3.5. Test Result ................................................................................................................................. 15 6.4. Power Spectral Density Measurement ...…

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