2AB3E-IUV4Wireless Microphone

ION Audio, LLC ION Audio, LLC 200 Scenic View Drive, Cumberland, Rhode Island 02864, United States Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA 2023-12-20 Attestation Statement according to 2.911(d)(7) FCC ID: 2AB3E-IUV4 TO WHOM IT MAY CONCERN: We, ION Audio, LLC designate ourselves to act as U.S. agent for service of process. ION Audio, LLC hereby acknowledges the obligation of the U.S. agent for service of process. Further ION Audio, LLC accepts to maintain 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 the equipment. Sincerely Signature: Company name: ION Audio, LLC FRN: 0024611568 Address: 200 Scenic View Drive, Cumberland, Rhode Island 02864, United States Contact Person: Hill Lien Telephone No: 886-2-2717-2389 Email: [email protected]

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: ION Audio, LLC Grantee code: 2AB3E FRN:0024611568 FCC ID:2AB3E-IUV4 Contact Name: Hill Lien Address: 200 Scenic View Drive, Cumberland, Rhode Island 02864, United States Telephone No: 886-2-2717-2389 Email: [email protected] i. ION Audio, LLC (“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. ION Audio, LLC (“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. ION Audio, LLC (“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: 2023-12-20 Applicant’s Name: Hill Lien Title: Director of Compliance Signature 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

ION Audio, LLC 200 Scenic View Drive, Cumberland, Rhode Island 02864, United States DATE : 2023-12-20 ION Audio, LLC 200 Scenic View Drive, Cumberland, Rhode Island 02864, United States Attn: Director of Certification Authority to Act as Agent On our behalf, I appoint below company and person: Name Damon Hu Position Manager Company Name Guangdong Dongdian Testing Service Co.,Ltd. Address Unit 2,Building 1,No.17,Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Tel / Fax Tel: +86-0769-38826678-850 E-Mail [email protected] to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. Applicant name ION Audio, LLC Address 200 Scenic View Drive, Cumberland, Rhode Island 02864, United States Yours sincerely, Name Hill Lien Position Director of Compliance Company Name ION Audio, LLC Address 200 Scenic View Drive, Cumberland, Rhode Island 02864, United States Tel 886-2-2717-2389 E-Mail [email protected]

C5266091_X8_Ed.1 1/1 Letter of Authorization ION Audio, LLC Company: ION Audio, LLC Address: 200 Scenic View Drive, Cumberland, Rhode Island 02864, United States Product Name: Wireless Microphone Model Number: IUV4 FCC Identifier: 2AB3E-IUV4 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: Hill Lien Date: 2023-12-20 Title: Director of Compliance Signature of applicant:

C5266091_X10_Ed.1 1/1 ION Audio, LLC Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date:2023-12-20 Subject: Request for Confidentiality FCC ID: 2AB3E-IUV4 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. Exhibits Long-Term Confidentiality Short-Term Confidentiality ID Label/Location No No Attestation Statement No No External Photos No Block Diagram Schematics Test Report No No Test Setup Photos No User’s Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) No No SDR Software / Security Info No 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. 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. 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. Sincerely, Signature: Name: Hill Lien Title: Director of Compliance

Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23092205-1E Page 1 of 7 AppendixI: Photos of the EUT Product Name : Wireless Microphone Model Number : IUV4 Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23092205-1E Page 2 of 7 Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23092205-1E Page 3 of 7 Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23092205-1E Page 4 of 7

Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23092205-1E Page 4 of 7 Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23092205-1E Page 5 of 7 Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23092205-1E Page 6 of 7 Antenna Guangdong Dongdian Testing Service Co., Ltd. Case No.: DDT-Q23092205-1E Page 7 of 7 END

Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23092205-2E07 TRF No.: RT-4-E-02-013 FCC RF Exposure Report - Low power Ver.1.1 Page 1 of 6 FCC RF EXPOSURE REPORT Applicant : ION Audio, LLC Address of Applicant : 200 Scenic View Drive, Cumberland, RI 02864, U.S.A. Manufacturer : ION Audio, LLC Address of Manufacturer : 200 Scenic View Drive, Cumberland, RI 02864, U.S.A. Equipment under Test : Wireless Microphone Model No. : IUV4 FCC ID : 2AB3E-IUV4 Test Standard(s) : KDB447498 D01 General RF Exposure Guidance v06 Report No. : DDT-RE23092205-2E07 Issue Date : 2023/11/23 Issue By : Guangdong Dongdian Testing Service Co., Ltd. Address of Laboratory : Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23092205-2E07 TRF No.: RT-4-E-02-013 FCC RF Exposure Report - Low power Ver.1.1 Page 2 of 6 Table of Contents Test report declares............................................................................................................3 1. General Information ............................................................................................................ 5 1.1. Description of equipment .................................................................................................... 5 1.2. Assess laboratory ................................................................................................................ 5 2. RF Exposure evaluation for FCC ........................................................................................ 6 Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23092205-2E07 TRF No.: RT-4-E-02-013 FCC RF Exposure Report - Low power Ver.1.1 Page 3 of 6 Test Report Declare Standard Used: KDB447498 D01 General RF Exposure Guidance v06 We Declare: The equipment described above is assessed by Guangdong Dongdian Testing Service Co., Ltd. and in the configuration assessed the equipment complied with the standards specified above. The assessed results are contained in this report and Guangdong Dongdian Testing Service Co., Ltd. is assumed of full responsibility for the accuracy and completeness of these assess. After evaluation, our opinion is that the equipment In Accordance with above standard. Report No.: DDT-RE23092205-2E07 Date of Receipt: 2023/10/16 Date of Test: 2023/10/16 ~ 2023/11/22 Prepared By: Approved By: ___________________ ______________________ Tiger Mo/Engineer Damon Hu/EMC Manager Note: This report applies to above tested sample only. This report shall not be reproduced in parts without written approval of Guangdong Dongdian Testing Service Co., Ltd. Applicant : ION Audio, LLC Address of Applicant : 200 Scenic View Drive, Cumberland, RI 02864, U.S.A. Equipment under Test : Wireless Microphone Model No. : IUV4 Manufacturer : ION Audio, LLC Address of Manufacturer : 200 Scenic View Drive, Cumberland, RI 02864, U.S.A. Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23092205-2E07 TRF No.: RT-4-E-02-013 FCC RF Exposure Report - Low power Ver.1.1 Page 4 of 6 Revision History Rev. Revisions Issue Date Revised By --- Initial issue 2023/11/23 Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23092205-2E07 TRF No.: RT-4-E-02-013 FCC RF Exposure Report - Low power Ver.1.1 Page 5 of 6 1. General Information 1.1. Description of equipment 1.2. Assess laboratory Guangdong Dongdian Testing Service Co., Ltd. Unit 2,Building 1,No.17,Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Tel.: +86-0769-38826678, http://www.dgddt.com, Email: [email protected]. CNAS Accreditation No. L6451; A2LA Accreditation Number: 3870.01 FCC Designation Number: CN1182, Test Firm Registration Number: 540522 Innovation, Science and Economic Development Canada Site Registration Number: 10288A Conformity Assessment Body identifier: CN0048 VCCI facility registration number: C-20087, T-20088, R-20123, R-20155, G-20118 EUT Name : Wireless Microphone Model Number : IUV4 EUT Function Description : Please reference user manual of this device Power Supply : Battery 1.5V*2(Size: AA) Radio Specification : Bluetooth V5.0 (BR/EDR) Operation Frequency : Bluetooth (BR/EDR): 2402 MHz-2480 MHz Modulation : Bluetooth BR/EDR: GFSK, /4-DQPSK, 8DPSK Data Rate : 1 Mbps Antenna : PCB antenna, maximum PK gain: 0 dBi Sample Number : S23092205-04 Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23092205-2E07 TRF No.: RT-4-E-02-013 FCC RF Exposure Report - Low power Ver.1.1 Page 6 of 6 2. RF Exposure evaluation for FCC 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 Manufacturing Tolerance BT GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 2.15 3.05 0.76 Tolerance ±(dB) 2 2 2 π/4DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 1.89 2.83 0.68 Tolerance ±(dB) 2 2 2 π/4DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 2.35 3.23 0.88 Tolerance ±(dB) 2 2 2 Estimtion Result Worse case is as below: [2441 MHz, 5.23 dBm, (3.33 mW) output power] (3.33/5) ·[√2.441(GHz)] = 1.04< 3.0 for 1-g SAR Then SAR evaluation is not required. END OF REPORT

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Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23092205-2E04 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 1 of 91 FCC AND ISED CERTIFICATION TEST REPORT Applicant : ION Audio, LLC Address of Applicant : 200 Scenic View Drive, Cumberland, RI 02864, U.S.A. Manufacturer : ION Audio, LLC Address of Manufacturer : 200 Scenic View Drive, Cumberland, RI 02864, U.S.A. Equipment under Test : Wireless Microphone Model No. : IUV4 FCC ID : 2AB3E-IUV4 IC : 10541A-IUV4 Test Standard(s) : FCC Rules and Regulations Part 15 Subpart C, RSS-247 Issue 3 August 2023, ANSI C63.10:2013, RSS-Gen Issue 5, Apr. 2018, Amendment 2 (February 2021) Report No. : DDT-RE23092205-2E04 Issue Date : 2023/11/22 Issue By : Guangdong Dongdian Testing Service Co., Ltd. Address of Laboratory : Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808 Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23092205-2E04 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 2 of 91 Table of Contents Test report declares............................................................................................................4 1. Summary of Test Results .................................................................................................... 7 2. General Test Information .................................................................................................... 8 2.1. Description of EUT .............................................................................................................. 8 2.2. Accessories of EUT ............................................................................................................. 9 2.3. Assistant equipment used for test ....................................................................................... 9 2.4. Block diagram of EUT configuration for test ....................................................................... 9 2.5. Deviations of test standard................................................................................................ 10 2.6. Test environment conditions ............................................................................................. 10 2.7. Test laboratory .................................................................................................................. 10 2.8. Measurement uncertainty .................................................................................................. 11 3. Equipment Used During Conductive Test ......................................................................... 12 4. 20 dB Bandwidth ............................................................................................................... 13 4.1. Block diagram of test setup ............................................................................................... 13 4.2. Limits ................................................................................................................................. 13 4.3. Test procedure .................................................................................................................. 13 4.4. Test result .......................................................................................................................... 14 4.5. Test graphs ....................................................................................................................... 14 5. 99% Bandwidth ................................................................................................................. 18 5.1. Block diagram of test setup ............................................................................................... 18 5.2. Limits ................................................................................................................................. 18 5.3. Test procedure .................................................................................................................. 18 5.4. Test Result ........................................................................................................................ 18 5.5. Test Graphs ....................................................................................................................... 19 6. Maximum Peak Output Power .......................................................................................... 22 6.1. Block diagram of test setup ............................................................................................... 22 6.2. Limits ................................................................................................................................. 22 6.3. Test procedure .................................................................................................................. 22 6.4. Test Result ........................................................................................................................ 23 6.5. Test graphs ....................................................................................................................... 23 7. Carrier Frequency Separation ........................................................................................... 27 7.1. Block diagram of test setup ............................................................................................... 27 7.2. Limits ................................................................................................................................. 27 7.3. Test procedure .................................................................................................................. 27 7.4. Test result .......................................................................................................................... 28 7.5. Test graphs ....................................................................................................................... 28 8. Dwell Time ..................................................…

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Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23092205-2E04 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 89 of 91 16. Test Setup Photograph Guangdong Dongdian Testing Service Co., Ltd. Report No.: DDT-RE23092205-2E04 TRF No.: RT-4-E-02-001 FCC ID&ISED Report BDR EDR Ver.1.1 Page 90 of 91