Y4O-ADA2SAudio Device

Agent letter FCC attestation statement Kiwa Page 1 of 2 RF_753, Issue 4 17-07-2025 [PLACE ON APPLICANT/COMPANY LETTERHEAD] U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO: Kiwa Nederland B.V. Wilmersdorf 50 7327 AC Apeldoorn Postbus 137 7300 AC Apeldoorn Netherlands ATTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company name: inMusic Brands Inc. FRN: ☒ 10 digit number: 0022102461 ☐ The US Agent does not have a FRN because this person does not do business with the FCC Contact person name: Hill Lien Street address: 200 SCENIC VIEW DRIVE, SUITE 201, ZIP/City/State 02864 / CUMBERLAND / Rhode Island Telephone number: +1 401-658-4032 Email address: [email protected] Signature: Date: 2026/08/20 This letter is to confirm that we (“the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. 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 above changes. Applicant Company name: inMusic Brands Inc. FCC ID: Y4O-ADA2S FRN: 0022102461 Contact person name: Hill Lien Street address: 200 SCENIC VIEW DRIVE, SUITE 201, ZIP/City/State/Country 02864 / CUMBERLAND / Rhode Island Telephone number: +886-2-2717-2389 Ext. 66 Email address: [email protected] Signature: Date: 2026/08/20 Agent letter FCC attestation statement Kiwa Page 2 of 2 RF_753, Issue 4 17-07-2025 [PLACE ON APPLICANT/COMPANY LETTERHEAD] Revision Record Sheet: Revision Section number Page number Date Remark(s) issued by 01 07-02-2023 1 st version RvdM 02 1 15-05-2023 Added FRN to Agent details RvdM 03 1 06-06-2024 Added FRN to Applicant details RvdM 04 1 17-07-2025 -Changed Grantee code into FCC ID -Added additional option regarding the use of a FRN for the US Agent PR Issued/modified by : Pieter Robben Function : Certification assessor Revision : 04 Date : 17-07-2025 Verified by : Willem Jan Jong Function : Team Lead Date : 17-07-2025 Released by : Axel Gase Function : Manager Quality Assurance Date of release: : 17-07-2025

Covered list attestation FCC application letter Kiwa Page 1 of 2 RF_755_03 06-06-2024 [PLACE COMPANY LOGO HERE OR PUT ON COMPANY LETTERHEAD] Certification Application Attestation Statements inMusic Brands Inc. FRN: 0022102461 200 Scenic View Drive, 02864 Cumberland, Rhode Island, U.S.A. Subject: FCC ID: Y4O-ADA2S To Whom It May Concern: Statement for 47 CFR section 2.911(d)(5)(i) inMusic Brands Inc.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) inMusic Brands Inc. (“the applicant”) certifies that, as of the date of the filing of this application, the applicant - is / - is not (3) identified on the Covered List as an entity producing “covered” equipment. Date: 2026/08/20 City: Cumberland Name (2) : Hill Lien Function: Director of Compliance Telephone number: +886-2-2717-2389 Ext. 66 Email address: [email protected] 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 . (2): For FCC it must be the Grantee Code “owner” or the authorized agent. (3): double click on the appropriate box and select ‘’checked” then “OK” Covered list attestation FCC application letter Kiwa Page 2 of 2 RF_755_03 06-06-2024 [PLACE COMPANY LOGO HERE OR PUT ON COMPANY LETTERHEAD] Revision Record Sheet: Revision Section number Page number Date Remark(s) issued by 01 07-02-2023 1 st version RvM 02 1 15-02-2023 Changed Applicant to Company and added “Subject: FCC ID: “ RvdM 03 1 06-06-2024 FRN added at certification application and included [Insert Company Name Here] for the statements RvdM Issued/modified by : Richard van de Meer Function : Certification assessor Revision : 03 Date : 06-06-2024 Verified by : Willem Jan Jong Function : Team Lead Date : 06-06-2024 Released by : Axel Gase Function : Manager Quality Assurance Date of release: : 06-06-2024

RF_160_06 Declaration of Authorisation Date of issue 13-05-2025 (On manufacturer’s company letter heading) Declaration of Authorization We Name: inMusic Brands, Inc. Address: 200 SCENIC VIEW DRIVE, SUITE 201, City: CUMBERLAND, Rhode Island Country: United States Declare that: Name Representative of agent: Sam Chien (1) Agent Company name: Central Research Technology Co. Address: 11, Lane 41, Fushuen St., Jungshan Chiu City: Taipei Country Taiwan is authorized to apply for Certification of the following product(s): Product description: Audio Device Type designation: ADA2S Trademark: Denon DJ Validity/ expiry date: Until further notice on our behalf. Date: 2026/08/20 City: Cumberland Name: Hill Lien (2) Function: Director of Compliance Signature: Notes: (1): Required for FCC application (2): For FCC it must be the Grantee Code “owner” or the authorized agent. Revision Record Sheet: Revision Section number Page number Date Remark(s) issued by 02 1 02-01-2023 History sheet added AG 04 all 13-08-2025 Kiwa logo change AG Issued/modified by : Axel Gase Function : Manager Quality Assurance Revision : 04 Date : 13-08-2025 Verified by : Willem Jan Jong Function : Team Lead Date : 13-08-2025 Released by : Axel Gase Function : Manager Quality Assurance Date of release: : 13-08-2025

FCC Test ReportReport No.:RF-AB70-2604-357 CENTRAL RESEARCH TECHNOLOGY CO. Page : 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei 104, Taiwan TEL. : 886-2-25872719 FAX. : 886-2-25850364 1/3 RF Exposure Evaluation Report For Audio Device Trade Name : Model No. : ADA2S FCC ID: Y4O-ADA2S Date of Receipt : April 15, 2026 Date of Report: July 01, 2026 Prepared by Central Research Technology Co. 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei 104, Taiwan. This report shall not be reproduced, except in full, without written approval of Central Research Technology Co.. It may be duplicated completely in its entirely for legal use with the permission of the applicant. The test result in this report is based on the information provided by manufacturer and applies only to the sample tested. FCC Test ReportReport No.:RF-AB70-2604-357 CENTRAL RESEARCH TECHNOLOGY CO. Page : 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei 104, Taiwan TEL. : 886-2-25872719 FAX. : 886-2-25850364 2/3 1 Requirement for Compliance According to§1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. This is a Mobile device, the MPE is required. According to§1.1310 and§2.1091 RF exposure is calculated. Limits for Maximum Permissive Exposure (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minute) Limits for General Population/Uncontrolled Exposure 0.3-1.346141.63*(100)30 1.34-30824/f2.19/f*(180/f 2 )30 30-30027.50.0730.230 300-1500//F/150030 1500-15000//1.030 F = frequency in MHz * = Plane-wave equipment power density The MPE was calculated at 20 cm to show compliance with the power density limit The following formula was used to calculate the Power Density. S=PG/4πR 2 Where: S = Power density P = Power input to antenna G = Power gain of the antenna in the direction of interest relative to an isotropic radiator R = Distance to the center of radiation of the antenna FCC Test ReportReport No.:RF-AB70-2604-357 CENTRAL RESEARCH TECHNOLOGY CO. Page : 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei 104, Taiwan TEL. : 886-2-25872719 FAX. : 886-2-25850364 3/3 Maximum Permissible Exposure (MPE) Evaluation Frequency Band (MHz) Conducted power (dBm) Antenna gain (dBi) Tune-Up Tolerance (dB) EIRP (dBm) MPE (mW/cm 2 ) LIMIT (mW/cm 2 ) 2402 - 24805.662.001.008.6600.001471.00 2402 - 24804.712.001.007.7100.001181.00 2412 - 246217.812.001.0020.8100.023981.00 5180 - 524014.982.001.0017.9800.012501.00 5745 - 582510.852.001.0013.8500.004831.00 Combination Combined MPE (mW/cm2) LIMIT (mW/cm 2 ) BT+ BLE + WiFi 2.4G0.026631 BT+ BLE + WiFi 5G0.015151 This wireless communication module supports Bluetooth Low Energy (BLE), Bluetooth, and Wi-Fi functionalities. It can independently transmit BLE, Bluetooth, or Wi-Fi signals, and also supports simultaneous transmission of BLE and Wi-Fi. Therefore, MPE evaluation will focus on the simultaneous transmission mode of BLE and Wi-Fi. ~End of Report~

SPECIFICATION Product： WLAN EMBEDDED ANTENNA Descriptions：2.4~2.5/4.9~5.8GHz+PCB+TISSUE TAPE +OD1.13 CABLE+IPEX DC-SP-V04170331 SPECIFICATION ELECTICAL PROPERTIES FREQUENCY RANGE ------------------------------------------------------------------------ 2.4~2.5/4.9~5.8 GHz VSWR---------------------------------------------------------------------------------------------------------------- ≦2.0 IMPEDANCE--------------------------------------------------------------------------------------------------------- 50Ω GAIN------------------------------------------------------------------------------------------------------------------ 2dBi PHYSICAL PROPERTIES WIRE----------------------------------------------------------------------------------------- OD1.13 CABLE BLACK CABLE LENGTH------------------------------------------------------------------------------------------------ 350mm CONNECTOR------------------------------------------------------------------------------------------------------ IPEX PCB--------------------------------------------------------------------------------------------------------------------- FR4 TISSUE TAPE------------------------------------------------------------------------------------------------- 3M9448A OPRERATING TEMPERATURE---------------------------------------------------------------------- -40°C~+80°C STORAGE TEMPERATURE--------------------------------------------------------------------------- -45°C~+85°C RETURN LOSS VSW R Chamber Center freq.(MHz):：2400 Center freq.(MHz):：2450 Center freq.(MHz):：2500 Center freq.(MHz):：5150 Center freq.(MHz):：5450 Center freq.(MHz):：5600 Center freq.(MHz):：5765 Center freq.(MHz):：5850 昀陽科技有限公司 BRITO TECH. A1 ver. 離型紙 熱熔膠 熱熔膠

WLAN EMBEDDED ANTENNA NO. ITEM PAGE 1 1 2 2 3 3 4 4 5 PCB SGS REPORT 5~52 6 SGS REPORT 53~80 7 SGS REPORT 81~103 8 SGS REPORT 104~111 9 SGS REPORT 112~121 10 SGS REPORT 122~130 SPECIFICATION ELECTICAL PROPERTIES FREQUENCY RANGE ------------------------------------------------------------------------ 2.4~2.5/4.9~5.8 GHz VSWR---------------------------------------------------------------------------------------------------------------- 2.0 IMPEDANCE--------------------------------------------------------------------------------------------------------- GAIN------------------------------------------------------------------------------------------------------------------ 2dBi PHYSICAL PROPERTIES WIRE----------------------------------------------------------------------------------------- OD1.13 CABLE BLACK CABLE LENGTH------------------------------------------------------------------------------------------------ 350mm CONNECTOR------------------------------------------------------------------------------------------------------ IPEX PCB--------------------------------------------------------------------------------------------------------------------- FR4 TISSUE TAPE------------------------------------------------------------------------------------------------- 3M9448A OPRERATING TEMPERATURE---------------------------------------------------------------------- -40~+80 STORAGE TEMPERATURE--------------------------------------------------------------------------- -45~+85

FCC Test ReportReport No.: RF1-AB70-2604-357 CENTRAL RESEARCH TECHNOLOGY CO.Page : 1/70 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei 104, Taiwan TEL. : 886-2-25872719 FAX. : 886-2-25850364 FCC RF Test Report For Audio Device Trade Name : Model No. : ADA2S FCC ID: Y4O-ADA2S Date of Receipt : April 15, 2026 Date of Report: July 01, 2026 Prepared for inMusic Brands, Inc. 200 Scenic View Drive, Cumberland, RI 02864, U.S.A. Prepared by Central Research Technology Co. 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei 104, Taiwan This report shall not be reproduced, except in full, without written approval of Central Research Technology Co.. It may be duplicated completely in its entirely for legal use with the permission of the applicant. The test result in this report is based on the information provided by manufacturer and applies only to the sample tested. FCC Test ReportReport No.:RF1-AB70-2604-357 CENTRAL RESEARCH TECHNOLOGY CO.Page : 2/70 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei 104, Taiwan TEL. : 886-2-25872719 FAX. : 886-2-25850364 Verification of Compliance Equipment under Test: Audio Device Model No. :ADA2S FCC ID: Y4O-ADA2S Applicant: inMusic Brands, Inc. Address:200 Scenic View Drive, Cumberland, RI 02864, U.S.A. Applicable Standards: 47 CFR part 15, Subpart C Applicable Standards: ANSI C63.10:2020 Deviation:The method, configuration and arrangement of the tests are Deviation:following the requirement of customer and the applicable Deviation:standards cited above. Condition of Test Sample :Mass Production We,Central Research Technology Co., hereby certify that one sample of the designated product was tested in our facility during the period mentioned above. The test records, data evaluation and Equipment Under Test (EUT) configurations shown in the present report are true and accurate representation of the measurements of the sample’s RF characteristics under the conditions herein specified. The test results show that the EUT as described in the present report is in compliance with the requirements set forth in the standards mentioned above and apply to the tested sample identified in the present report only. The test report shall not be reproduced, except in its entirety, without the written approval of Central Research Technology Co. FCC Test ReportReport No.:RF1-AB70-2604-357 CENTRAL RESEARCH TECHNOLOGY CO.Page : 3/70 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei 104, Taiwan TEL. : 886-2-25872719 FAX. : 886-2-25850364 Contents 1General Description .............................................................................................. 5 1.1General Description of EUT .................................................................................. 5 1.2Applied standards ................................................................................................. 7 1.3Test result ............................................................................................................ 10 1.4The Support Units ............................................................................................... 11 1.5Layout of Setup ................................................................................................... 12 1.6Test Instruments.................................................................................................. 13 1.7Test Capability ..................................................................................................... 16 1.8Measurement Uncertainty .................................................................................. 18 1.9Duty factor ........................................................................................................... 19 2Peak Output Power Measurement ..................................................................... 20 2.1Applied standard ................................................................................................. 20 2.2Measurement Procedure .................................................................................... 21 2.3Test configuration ............................................................................................... 21 2.4Test Data .............................................................................................................. 21 320dB Bandwidth .................................................................................................. 22 3.1Applied standard ................................................................................................. 22 3.2Measurement Procedure .................................................................................... 22 3.3Test configuration ............................................................................................... 22 3.4Test Data .............................................................................................................. 23 4Frequency Separation......................................................................................... 25 4.1Applied standard ................................................................................................. 25 4.2Measurement Procedure .................................................................................... 25 4.3Test configuration ............................................................................................... 25 4.4Test Data .............................................................................................................. 26 5Number of Hopping Frequency .......................................................................... 27 5.1Applied standard ................................................................................................. 27 5.2Measurement Procedure .................................................................................... 27 5.3Test configuration ............................................................................................... 27 5.4Test Data ..............................................…

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