2AB3E-ISP189Floating Party Speaker with Lights

ION Audio, LLC Covered Equipment Certification Attestation Letter 1/20/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2AB3E-ISP189 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. 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 a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. ION Audio, LLC (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Signed: Printed name: Hill Lien Title: Director of Compliance Company Name: ION Audio, LLC Date: 1/20/2026

ION Audio, LLC * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 1/20/2026 TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2AB3E-ISP189 FRN of applicant: 0024611568 Per section 2.911(d)(7) of the FCC rules, ION Audio, LLC (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: ION Audio, LLC FCC Registration Number (FRN): 0024611568 Physical U.S. Company Address: 200 Scenic View Drive, Cumberland, RI 02864, U.S.A. Contact Person: Hill Lien Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant 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. Applicant Signed: Agent Signed (if different from Applicant): Signed: Signed: Printed name: Hill Lien Printed name: Click here to enter text. Title: Director of Compliance Title: Click here to enter text. Company Name: ION Audio, LLC Company Name: Click here to enter text. Date: 1/20/2026 Date: 1/20/2026

DATE : 1/20/2026 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint EST Technology Co., Ltd. Address:Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China 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. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with ION Audio, LLC Address: 200 Scenic View Drive, Cumberland, RI 02864, U.S.A. <Signature> Name：Hill Lien Title：Director of Compliance Applicant Company：ION Audio, LLC

DATE : 1/20/2026 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AB3E-ISP189 Product Name: Floating Party Speaker with Lights Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature> Name：Hill Lien Title：Director of Compliance Company：ION Audio, LLC

ION Audio, LLC I, the undersigned, Declaration: They are identical to each other, only except for model name, appearance in color or decorating parts and silkscreen for marketing purpose. 1) Model No.: iSP189 2) Model No.: iSP189***** (“*” can be “a-z”, “A-Z”, “0-9”, blank,“-”, “+” or any character, symbol, alphanumeric) FCC ID: 2AB3E-ISP189 Sincerely, Client’s signature : Client’s name: Hill Lien/ Director of Compliance Contact information / address: 200 Scenic View Drive, Cumberland, RI 02864, U.S.A. Telephone: 886-2-2717-2389 Fax No.: 886-2-2717-2735

External Photos M/N: iSP189 External Photos M/N: iSP189 External Photos M/N: iSP189 External Photos M/N: iSP189

iSP189 Layer 1: Reference/info Layer 2: Cool Gray 5C Singer HydroGroove1:1 10/30/2025 Compliance Sticker ArtworkRevA

Internal Photos M/N: iSP189 Internal Photos M/N: iSP189 Internal Photos M/N: iSP189 Antenna Internal Photos M/N: iSP189

Page 1 of 3 Report No. ESTE-R2601128 FCC RF EXPOSURE REPORT ION Audio, LLC Floating Party Speaker with Lights Model Number: iSP189 Additional Model: iSP189***** (“*” can be “a-z”, “A-Z”, “0-9”, blank, “-”, “+” or any character, symbol, alphanumeric) FCC ID: 2AB3E-ISP189 Applicant: ION Audio, LLC Address: 200 Scenic View Drive, Cumberland, RI 02864, USA Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2601128 Date of Test: Dec. 18, 2025 to Jan. 14, 2026 Date of Report: Jan. 19, 2026 Page 2 of 3 Report No. ESTE-R2601128 1. Applicable Standards FCC Part 2(Section 2.1093) FCC KDB 447498 D04 Interim General RF Exposure Guidance v01 2. Exposure Evaluation of Portable or Mobile Devices Human exposure to RF emissions from portable devices (47 CFR §2.1093), as defined by the FCC, must be evaluated with respect to the FCC-adopted limits for SAR. Evaluation of mobile devices, as defined by the FCC, may also be performed with respect to SAR limits, but in such cases it is usually simpler and more cost-effective to evaluate compliance with respect to field strength or power density limits. For certain devices that are designed to be used in both mobile and portable configurations similar to those described in 47 CFR §2.1091(d)(4), such as certain desktop phones and wireless modem modules, compliance for mobile configurations is also satisfied when the same device is evaluated for SAR compliance in portable configurations. The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 300 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. Page 3 of 3 Report No. ESTE-R2601128 3. Evaluation Results Mode CH Peak output Power (dBm) Antenna Gain (dBi) Effective Radiated Power (dBm) Target power (dBm) Max. Target power (mW) SAR Test Exemption Limit (mW) GFSK 2402 1.34 1.62 0.81 0±1 1.259 2.72 2441 1.83 1.62 1.30 1±1 1.585 2.72 2480 1.29 1.62 0.76 0±1 1.259 2.72 π/4-DQPSK 2402 2.08 1.62 1.55 1±1 1.585 2.72 2441 2.42 1.62 1.89 1±1 1.585 2.72 2480 1.93 1.62 1.40 1±1 1.585 2.72 8-DPSK 2402 2.46 1.62 1.93 1±1 1.585 2.72 2441 2.82 1.62 2.29 2±1 1.995 2.72 2480 2.31 1.62 1.78 1±1 1.585 2.72 BLE 1M 2402 4.41 1.62 3.88 3±1 2.512 2.72 2440 4.41 1.62 3.88 3±1 2.512 2.72 2480 3.60 1.62 3.07 3±1 2.512 2.72 Note: 1. Limited=3060*(0.5/20)^x, x=-log(60/(3060*√f)). 2. We choose f=2.48GHz (Highest frequency operate at bluetooth) to calculate MPE limit as higher frequency will have lower MPE limits. 3. SAR Test Exclusion Thresholds is 2.72mW for separation distance 5mm. Therefore, SAR test is not required. End of Test Report

iSP189BTANTSPEC Type：PCB On BoardANT Length：11.7 mm Width：5.1mm Technology：FR4& CoverResistanceWeldingOil Manufacturerof Antenna：SHENZHENFENDATECHNOLOGYCO., LTD. Addressof antennamanufacturer：FendaHi-TechPark,ZhoushiRoad, ShiyanTown,BaoanDistrict,ShenzhenCity，Guangdong，China BTANTSWR& ReturnLoss(2.4G） BTEfficiency& Gain Frequency (MHz) Efficiency (%) Gain (dBi) 2400MHz 42.661.58 2410MHz43.871.60 2420MHz44.901.55 2430MHz 46.261.58 2440MHz46.781.60 2450MHz 45.881.62 2460MHz 47.611.55 2470MHz47.471.50 2480MHz 45.721.56 2490MHz44.251.51 2500MHz 45.271.58

Page 1 of 40 Report No.ESTE-R2601127 FCC PART 15C TEST REPORT FOR CERTIFICATION On Behalf of ION Audio, LLC Floating Party Speaker with Lights Model Number: iSP189 Additional Model: iSP189***** (“*” can be “a-z”, “A-Z”, “0-9”, blank, “-”, “+” or any character, symbol, alphanumeric) FCC ID: 2AB3E-ISP189 Applicant: ION Audio, LLC Address: 200 Scenic View Drive, Cumberland, RI 02864, USA Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2601127 Date of Test: Dec. 18, 2025 to Jan. 14, 2026 Date of Report: Jan. 19, 2026 Page 2 of 40 Report No.ESTE-R2601127 TABLE OF CONTENTS Description Page TEST REPORT VERIFICATION .......................................................................................................... 3 1. GENERAL INFORMATION ................................................................................................................... 5 1.1. Description of Device (EUT) ............................................................................................................ 5 1.2. Antenna Information ......................................................................................................................... 5 1.3. Information of RF Cable ................................................................................................................... 5 2. SUMMARY OF TEST ........................................................................................................................... 6 2.1. Summary of test result ..................................................................................................................... 6 2.2. Test Facilities ..................................................................................................................................... 7 2.3. Measurement uncertainty ................................................................................................................ 8 2.4. Assistant equipment used for test .................................................................................................. 8 2.5. Block Diagram ................................................................................................................................... 8 2.6. Test Mode .......................................................................................................................................... 9 2.7. Power Setting of Test Software ...................................................................................................... 9 2.8. Duty Cycle .......................................................................................................................................... 9 2.9. Channel List ..................................................................................................................................... 10 2.10. Test Equipment List ...................................................................................................................... 11 3. 6DB BANDWIDTH ............................................................................................................................ 13 3.1. Limit ................................................................................................................................................... 13 3.2. Test Setup ........................................................................................................................................ 13 3.3. Spectrum Analyzer Setting ............................................................................................................ 13 3.4. Test Procedure ................................................................................................................................ 13 3.5. Test Result ....................................................................................................................................... 13 4. MAXIMUM PEAK OUTPUT POWER .................................................................................................. 14 4.1. Limit ................................................................................................................................................... 14 4.2. Test Setup ........................................................................................................................................ 14 4.3. Spectrum Analyzer Setting ............................................................................................................ 14 4.4. Test Procedure ................................................................................................................................ 14 4.5. Test Result ....................................................................................................................................... 14 5. POWER SPECTRAL DENSITY .......................................................................................................... 15 5.1. Limit ................................................................................................................................................... 15 5.2. Test Setup ........................................................................................................................................ 15 5.3. Spectrum Analyzer Setting ............................................................................................................ 15 5.4. Test Procedure ................................................................................................................................ 15 5.5. Test Result ....................................................................................................................................... 15 6. CONDUCTED BAND EDGE .............................................................................................................. 16 6.1. Limit ...............................................................................…

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Page 1 of 17 Report No. ESTE-R2601127 Appendix A: DTS Bandwidth Test Result TestMode Antenna Frequency[MHz] DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE_1M Ant1 2402 0.657 2401.676 2402.333 0.5 PASS BLE_1M Ant1 2440 0.660 2439.682 2440.342 0.5 PASS BLE_1M Ant1 2480 0.654 2479.682 2480.336 0.5 PASS Page 2 of 17 Report No. ESTE-R2601127 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Page 3 of 17 Report No. ESTE-R2601127 Page 4 of 17 Report No. ESTE-R2601127 Appendix B: Maximum conducted output power Test Result Peak TestMode Antenna Frequency[MHz] Conducted Peak Power[dBm] Conducted Limit[dBm] Verdict BLE_1M Ant1 2402 4.41 ≤30 PASS BLE_1M Ant1 2440 4.41 ≤30 PASS BLE_1M Ant1 2480 3.60 ≤30 PASS Test Graphs Peak BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS Page 5 of 17 Report No. ESTE-R2601127 BLE_1M-Ant1-2480-PASS Page 6 of 17 Report No. ESTE-R2601127 Appendix C: Maximum power spectral density Test Result TestMode Antenna Frequency[MHz] Result[dBm/3kHz] Limit[dBm/3kHz] Verdict BLE_1M Ant1 2402 -7.69 ≤8.00 PASS BLE_1M Ant1 2440 -7.77 ≤8.00 PASS BLE_1M Ant1 2480 -8.48 ≤8.00 PASS Page 7 of 17 Report No. ESTE-R2601127 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Page 8 of 17 Report No. ESTE-R2601127 Page 9 of 17 Report No. ESTE-R2601127 Appendix D: Reference level measurement Test Result TestMode Antenna Freq(MHz) Max.Point[MHz] Result[dBm] BLE_1M Ant1 2402 2402.01 3.39 BLE_1M Ant1 2440 2440.26 3.08 BLE_1M Ant1 2480 2480.00 2.60 Page 10 of 17 Report No. ESTE-R2601127 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Page 11 of 17 Report No. ESTE-R2601127 Page 12 of 17 Report No. ESTE-R2601127 Appendix E: Band edge measurements Test Result TestMode Antenna ChName Frequency [MHz] RefLevel[dBm] Result[dBm] Limit[dBm] Verdict BLE_1M Ant1 Low 2402 3.39 -39.57 ≤-16.61 PASS BLE_1M Ant1 High 2480 2.60 -38.66 ≤-17.40 PASS Page 13 of 17 Report No. ESTE-R2601127 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2480-PASS Page 14 of 17 Report No. ESTE-R2601127 Appendix F: Conducted Spurious Emission Test Result TestMode Antenna Frequency[MHz] FreqRange [MHz] RefLevel [dBm] Result[dBm] Limit[dBm] Verdict BLE_1M Ant1 2402 30~26500 3.39 -41.56 ≤-16.61 PASS BLE_1M Ant1 2440 30~26500 3.08 -41.32 ≤-16.92 PASS BLE_1M Ant1 2480 30~26500 2.60 -42.42 ≤-17.40 PASS Page 15 of 17 Report No. ESTE-R2601127 Test Graphs BLE_1M-Ant1-2402-30~26500-PASS BLE_1M-Ant1-2440-30~26500-PASS BLE_1M-Ant1-2480-30~26500-PASS Page 16 of 17 Report No. ESTE-R2601127 Page 17 of 17 Report No. ESTE-R2601127 Appendix G: Duty Cycle Test Result TestMode Antenna Frequency[MHz] ON Time [ms] Period [ms] Duty Cycle [%] Duty Cycle Factor[dB] BLE_1M Ant1 2440 2.20 2.50 88.00 0.56 Test Graphs NTNV-BLE_1M-Ant1-2440

Conducted Test Radiated Test (30-1000 MHz) Radiated Test (Above 1GHz)