2AC5R-SPEAKERParty Speaker

Rev 1/26/2023 SUPERSONIC INC Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2026-8-25 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2AC5R-SPEAKER (“SUPERSONIC INC”) 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. (“SUPERSONIC INC”) 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). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, (Applicant signature) David Gholiani (Applicant printed name) Rev 1/26/2023 SUPERSONIC INC Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2026-8-25 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2AC5R-SPEAKER (“SUPERSONIC INC”) certifies that, as of the date of the filing of the application, SUPERSONIC INC 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. Sincerely, (Applicant signature) David Gholiani (Applicant printed name)

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: SUPERSONIC INC Address: 6555 Bandini Blvd Commerce CA 90040 FRN: 0027309095 Contact Name: David Gholiani Telephone No: 323 201 5060 E-mail: [email protected] This letter is to confirm that the US Agent for Service of Process accepts responsibility to act as a local representative on behalf of SUPERSONIC INC The US Agent for Service of Process 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. Applicant: Company Name: SUPERSONIC INC Product Description: Party Speaker FRN: 0027309095 Grantee Code: 2AC5R FCC ID: 2AC5R-SPEAKER Contact Name: David Gholiani Address: 6555 Bandini Blvd Commerce CA 90040 Telephone No: 323 201 5060 E-mail: [email protected] 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. This Agreement is valid until (Permanently valid). Date: 2026/8/25 Applicant’s Name: SUPERSONIC INC US Agent for Service of Process’s Name: SUPERSONIC INC Title: Manager Title: Manager Signature Signature

SUPERSONIC INC Date: 2026-8-25 Product/ Model Number: Party Speaker FCC ID: 2AC5R-SPEAKER To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following:  Testing  Approval applications and procedures We declare that QAI Laboratories Ltd. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by QAI Laboratories Ltd. on our behalf shall have the same effect as acts of our own. By: David Gholiani Contact Listed on FCC Wesbite Title: Manager Email: [email protected] Telephone: 323 201 5060 On behalf of: SUPERSONIC INC

SUPERSONIC INC Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: August 25, 2026 Subject; Request for Confidentiality FCC ID: 2AC5R-SPEAKER To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. 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. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure Software Security Requirements for UNII devices In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: David Gholiani Title: Manager

SUPERSONIC INC Family models declaration letter August 25, 2026 We SUPERSONIC INC Of 6555 Bandini Blvd Commerce CA 90040 Declare under our sole responsibility that the product FCC ID: 2AC5R-SPEAKER Product: Party Speaker Model Number: IQ-4550BT, IQ-4540BT, IQ-4535BT, IQ-4525BT Except for the model number and exterior color, all models use the same circuitry and modules. David Gholiani/ Manager E-mail : [email protected] Phone : 323 201 5060 Fax : 323-201-5069 Address : 6555 Bandini Blvd Commerce CA 90040

Size: Power Input: AC 120-220V, 50/60Hz Power Output: 60W + 15Wx2 Frequency Response: 45Hz-20KHz S/N Ratio: ≥78dB FCC ID2AC5R-SPEAKER MADE IN PRC IQ-4550BT

FCC ID: 2AC5R-SPEAKER RF Exposure Evaluation According to KDB 447498 D01 General RF Exposure Guidance v06 and part 2.1093， Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 5 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 Here, We use 5mm as separation distance to calculated. Bluetooth DSS(Worst): Transmit Frequency (GHz) Mode Measured Power (dBm) Tune-up power (dBm) Max tune-up power(dBm) Result calculation 1g SAR 2.441 Π/4-DQPSK 2.94 2±1 3 0.6235 3 Remark：1. PCB Antenna gain is -0.58 dBi, So a SAR test is not required

Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26-0.76-0.58-5.25-2.46-1.86 MAX. Gain -0.58dBi PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna type PCB ANT Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) ADD No. 333, Kexing Road, Xiangzhou District, Zhuhai City, Guangdong Pro vince, China Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain (dB) Frequency (MHz) MaxMinAvg 2400-1.26174-30.0801-7.18716 2450-0.765802-36.5604-7.48023 2500-0.585582-22.0315-6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain (dB) Frequency (MHz) MaxMinAvg 2400-5.2537-22.1424-12.4294 2450-2.4652-24.5837-10.4702 2500-1.86120-29.5214-9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

Shenzhen NTT Testing Technology Co.,Ltd. Report No.: SZNTT26031586E1-1 SZNTT-TR838-0 Tel:0755-27889935 Web:http://www.ntt-testing.com Page 1 of 30 TEST REPORT Applicant : Supersonic Inc. Address : 6555 Bandini Blvd Commerce CA 90040 Manufacturer : Dongguan Huahong Electrical Appliances Co., Ltd. Address : No.5, Changde Road, Changantang Village, Dongkeng Town, Dongguan, Guangdong, China Product Name : Party Speaker Model Number : IQ-4550BT, IQ-4540BT, IQ-4535BT, IQ-4525BT Trademark : IQsound, Supersonic FCC ID : 2AC5R-SPEAKER Test Date : Jul. 28, 2026 – Aug. 10, 2026 Date of Report : Aug. 11, 2026 Test Result : This device described above has been tested by NTT, and the test results show that the equipment under test (EUT) is in compliance with the Standard requirements. And it is applicable only to the tested sample identified in the report. Test Procedure Used: Standards : FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10-2020 + Cor. 1-2023+C63.10a-2024 + Errata to C63.10a-2024 KDB 558074 D01 15.247 Meas Guidance v05r02 Prepared by(Test Engineer): Cindy Qin Reviewer(Supervisor): Ken Wu Approved(Manager): Abel Yu Shenzhen NTT Testing Technology Co.,Ltd. Report No.: SZNTT26031586E1-1 SZNTT-TR838-0 Tel:0755-27889935 Web:http://www.ntt-testing.com Page 2 of 30 TABLE OF CONTENT 1. General Information ..................................................................................... 5 1.1. Description of Device (EUT) ..................................................................................................................... 5 1.2. Channel List ................................................................................................................................................ 5 1.3. Summary of test result .............................................................................................................................. 6 1.4. Special Accessories and Auxiliary Equipment ....................................................................................... 6 1.5. Test mode .................................................................................................................................................... 6 1.6. Test configuration ....................................................................................................................................... 7 1.7. Block Diagram ............................................................................................................................................ 7 1.8. Test Conditions ........................................................................................................................................... 7 1.9. Measurement Uncertainty (95% confidence levels, k=2) .................................................................... 8 1.10. Test Facility ............................................................................................................................................... 8 1.11. Test Equipment ......................................................................................................................................... 9 2. Conducted emission at the mains terminals test ................................... 11 2.1. Limit.............................................................................................................................................................11 2.2. Test Setup ..................................................................................................................................................11 2.3. Test Procedure ..........................................................................................................................................11 2.4. Test Result ................................................................................................................................................ 12 3. Radiated Spurious Emissions .................................................................. 14 3.1. Limit............................................................................................................................................................ 14 3.2. Test Setup ................................................................................................................................................. 15 3.3. Test Procedure ......................................................................................................................................... 17 3.4. Test Result ................................................................................................................................................ 18 4. Maximum Peak Output Power................................................................... 23 4.1. Limit............................................................................................................................................................ 23 4.2. Test Setup ................................................................................................................................................. 23 4.3. Test Procedure ......................................................................................................................................... 23 4.4. Test Result ................................................................................................................................................ 23 5. -20 dB Bandwidth Measurement .............................................................. 24 5.1. Limit............................................................................................................................................................ 24 5.2. Test Setup ................................................................................................................................................. 24 5.3. Test Procedure .....................................................................................................................................…

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Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page1of49 RF Test Data Duty Cycle ....................................................................................................................................................................... 2 Maximum Peak Conducted Output Power ...................................................................................................................... 6 -20dB Bandwidth ........................................................................................................................................................... 10 Occupied Channel Bandwidth ....................................................................................................................................... 14 Carrier Frequencies Separation .................................................................................................................................... 18 Number of Hopping Channel ........................................................................................................................................ 22 Band Edge .................................................................................................................................................................... 26 Band Edge(Hopping) .................................................................................................................................................... 31 Conducted RF Spurious Emission ................................................................................................................................ 36 Dwell Time .................................................................................................................................................................... 43 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page2of49 Duty Cycle Condition Mode Frequency (MHz) Antenna Duty Cycle (%) Correction Factor (dB) 1/T (kHz) NVNT 1-DH1 2402 Ant1 30.96 5.09 2.58 NVNT 1-DH1 2441 Ant1 30.96 5.09 2.58 NVNT 1-DH1 2480 Ant1 30.96 5.09 2.58 NVNT 2-DH1 2402 Ant1 31.75 4.98 2.52 NVNT 2-DH1 2441 Ant1 31.75 4.98 2.52 NVNT 2-DH1 2480 Ant1 31.76 4.98 2.52 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page3of49 Duty Cycle NVNT 1-DH1 2402MHz Ant1 Duty Cycle NVNT 1-DH1 2441MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page4of49 Duty Cycle NVNT 1-DH1 2480MHz Ant1 Duty Cycle NVNT 2-DH1 2402MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page5of49 Duty Cycle NVNT 2-DH1 2441MHz Ant1 Duty Cycle NVNT 2-DH1 2480MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page6of49 Maximum Peak Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Conducted Power (W) Limit Conducted(dBm) Verdict NVNT 1-DH1 2402 Ant1 1.88 0.00154 21 Pass NVNT 1-DH1 2441 Ant1 2.07 0.00161 21 Pass NVNT 1-DH1 2480 Ant1 1.68 0.00147 21 Pass NVNT 2-DH1 2402 Ant1 2.8 0.00191 21 Pass NVNT 2-DH1 2441 Ant1 2.94 0.00197 21 Pass NVNT 2-DH1 2480 Ant1 2.51 0.00178 21 Pass Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page7of49 Peak Power NVNT 1-DH1 2402MHz Ant1 Peak Power NVNT 1-DH1 2441MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page8of49 Peak Power NVNT 1-DH1 2480MHz Ant1 Peak Power NVNT 2-DH1 2402MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page9of49 Peak Power NVNT 2-DH1 2441MHz Ant1 Peak Power NVNT 2-DH1 2480MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page10of49 -20dB Bandwidth Condition Mode Frequency (MHz) Antenna -20 dB Bandwidth (MHz) Verdict NVNT 1-DH1 2402 Ant1 0.9303 Pass NVNT 1-DH1 2441 Ant1 0.8819 Pass NVNT 1-DH1 2480 Ant1 0.9359 Pass NVNT 2-DH1 2402 Ant1 1.265 Pass NVNT 2-DH1 2441 Ant1 1.266 Pass NVNT 2-DH1 2480 Ant1 1.243 Pass Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page11of49 -20dB Bandwidth NVNT 1-DH1 2402MHz Ant1 -20dB Bandwidth NVNT 1-DH1 2441MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page12of49 -20dB Bandwidth NVNT 1-DH1 2480MHz Ant1 -20dB Bandwidth NVNT 2-DH1 2402MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page13of49 -20dB Bandwidth NVNT 2-DH1 2441MHz Ant1 -20dB Bandwidth NVNT 2-DH1 2480MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page14of49 Occupied Channel Bandwidth Condition Mode Frequency (MHz) Antenna 99% OBW (MHz) NVNT 1-DH1 2402 Ant1 0.8451 NVNT 1-DH1 2441 Ant1 0.86976 NVNT 1-DH1 2480 Ant1 0.84315 NVNT 2-DH1 2402 Ant1 1.1713 NVNT 2-DH1 2441 Ant1 1.1951 NVNT 2-DH1 2480 Ant1 1.1768 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page15of49 OBW NVNT 1-DH1 2402MHz Ant1 OBW NVNT 1-DH1 2441MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page16of49 OBW NVNT 1-DH1 2480MHz Ant1 OBW NVNT 2-DH1 2402MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page17of49 OBW NVNT 2-DH1 2441MHz Ant1 OBW NVNT 2-DH1 2480MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page18of49 Carrier Frequencies Separation Condition Mode Antenna Hopping Freq1 (MHz) Hopping Freq2 (MHz) HFS (MHz) Limit (MHz) Verdict NVNT 1-DH1 Ant1 2401.832 2402.834 1.002 0.62 Pass NVNT 1-DH1 Ant1 2440.822 2441.962 1.14 0.588 Pass NVNT 1-DH1 Ant1 2478.812 2479.96 1.148 0.624 Pass NVNT 2-DH1 Ant1 2401.822 2402.83 1.008 0.843 Pass NVNT 2-DH1 Ant1 2440.96 2441.824 0.864 0.844 Pass NVNT 2-DH1 Ant1 2478.83 2479.938 1.108 0.829 Pass Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page19of49 CFS NVNT 1-DH1 2402MHz Ant1 CFS NVNT 1-DH1 2441MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page20of49 CFS NVNT 1-DH1 2480MHz Ant1 CFS NVNT 2-DH1 2402MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page21of49 CFS NVNT 2-DH1 2441MHz Ant1 CFS NVNT 2-DH1 2480MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page22of49 Number of Hopping Channel Condition Mode Antenna Hopping Number Limit Verdict NVNT 1-DH1 Ant1 79 15 Pass NVNT 1-DH1 Ant1 79 15 Pass NVNT 1-DH1 Ant1 79 15 Pass NVNT 2-DH1 Ant1 79 15 Pass NVNT 2-DH1 Ant1 79 15 Pass NVNT 2-DH1 Ant1 79 15 Pass Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page23of49 Hopping No. NVNT 1-DH1 2402MHz Ant1 Hopping No. NVNT 1-DH1 2441MHz Ant1 Report No.: SZNTT26031586E1-1 SZNTT-TR728-0 Page…

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