2A78WBASSIQPORTABLE BLUETOOTH SPEAKER

Rev 1/26/2023 EMSONIC 54-8, Cheomdangieop 3-ro, Sandong-eup, Gumi-si, Gyeongsangbuk-do, South Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 11-01-2025 Ref: Attestation Statements Part 2.911(d)(7) Filing Grantee Code: 2A78W FCC ID: 2A78WBASSIQ Applicant FRN: 0032738205 [EMSONIC] (“the applicant”) certifies that, as of the date of the filing of the application, [FCC US Agent, LLC] is our designated U.S. agent for service of process for the above referenced Grantee Code. [EMSONIC] 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. [FCC US Agent, LLC] accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced Grantee Code. Designated U.S. Agent Information: Name: FCC US Agent, LLC U.S. Agent FRN: 0033402884 Address: 3722 Illinois Avenue Saint Charles, IL 60174 United States Contact Person: Tim Payne Tel.: (708) 571‐3148 Email: [email protected] Sincerely, [EMSONIC] FCC US Agent, LLC [Jihyun Koo] Tim Payne [U.S. Agent signature]

Rev 1/26/2023 EMSONIC 54-8, Cheomdangieop 3-ro, Sandong-eup, Gumi-si, Gyeongsangbuk-do, South Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 11-07-2025 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2A78WBASSIQ [EMSONIC] (“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. [EMSONIC] (“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). 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, Jihyun Koo Rev 1/26/2023 EMSONIC 54-8, Cheomdangieop 3-ro, Sandong-eup, Gumi-si, Gyeongsangbuk-do, South Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 11-07-2025 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2A78WBASSIQ [EMSONIC] (“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. Sincerely, Jihyun Koo

EMSONIC 54-8, Cheomdangieop 3-ro, Sandong-eup, Gumi-si, Gyeongsangbuk-do, South Korea Date: 11/07/2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Request of Confidentiality FCC ID: 2A78WBASSIQ To Whom It may Concern: Pursuant to Sections 0.457 and 0.459 of the Commission`s Rules(CFR 47), and Section 552 (b) (4) of the Freedom of Information Act, EMSONIC hereby requests confidentiality and treatment of certain information accompanying this application. The materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. We are also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give EMSONIC temporary confidentiality of commercially sensitive information prior to product release. The requested permanent and Short-Term Confidential exhibits are listed as follows: PERMANENT & SHORT-TERM CONFIDENTIAL LIST Exhibit Description PERMANENT 1 Block Diagram 2 Schematics 3 Part Lists 4 Operation Description 5 Part Location SHORT-TERM 6 Internal Photos 7 External Photos 8 Test-Setup Photos 9 User Manual The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be public before the date of the Grant for this application. Sincerely, Contact Name: Jihyun Koo Title: Research Engineer

EMSONIC 54-8, Cheomdangieop 3-ro, Sandong-eup, Gumi-si, Gyeongsangbuk-do, South Korea Date: 11/07/2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Letter of Authorization We, the undersigned, hereby authorize Geunki Son of Dt&C Co., Ltd. to act on our behalf in all manners relating to application for equipment authorization for FCC ID: 2A78WBASSIQ including signing of all documents relating to these matters. Any and all acts carried out by Geunki Son of Dt&C Co., Ltd. on our behalf shall have the same affect as acts of our own. This authorization is valid until further written notice from EMSONIC “I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a).” Sincerely, Contact Name: Jihyun Koo Title: Research Engineer

2 8 8 7 0 - B A S S I Q BassIQ 2 A 7 8 W B A S S I Q T h i s d e v i c e c o m p l i e s p a e t 1 5 o f t h e F C C R u l e s . O p e r a t i o n i s s u b j e c t t o t h e f o l l o w i n g t w o c o n d i t i o n s : ( 1 ) T h i s d e v i c e m a y n o t c a u s e h a r m f u l i n t e r f e r e n c e , a n d ( 2 ) t h i s d e v i c e m u s t a c c e p t a n y i n t e r f e r e n c e r e c e i v e d , i n c l u d i n g i n t e r f e r e n c e t h a t m a y c a u s e u n d e s i r e d o p e r a t i o n . R - R - e m 1 - B a s s I Q

FCC ID: RF featureMode Transmitting Frequency(MHz) Test separation distance (mm) ANT Gain (dBi) Max. power with tune-up tolerance (dBm) Max. power with tune-up tolerance (mW) Power thresholds SAR test exclusion thresholds Bluetooth(BDR)1 Mbps2 480.005.0-0.688.006.309 61.993.00 Conclusion : = [ ( 6.3096mW / 5mm ) ] X [ √2.48GHz ] = 1.99 Note. The calculation result was rounded to two decimal place for comparison. 2A78WBASSIQ - Standalone SAR test exclusion considerations SAR evaluation for general population exposure conditions by measurement or numerical simulation is not required KDB 447498 D01 clause 4.3.1 Step 1) SAR test exclusion thresholds for 100MHz to 6GHz at test separation distances ≤ 50 mm [ ( max. power of channel, including tune-up tolerance, mW ) / ( min. test separation distance, mm ) ] · [ √f(GHz) ] ≤ 3.0 for 1g SAR and ≤ 7.5 for 10g extremity SAR Sample Calculation

FCC ID: 2A78WBASSIQ Report No.: DRTFCC2511-0087(1) IC: 28870-BASSIQ This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-237(07)210316 Pages: 2 / 73 Test Report Version Test Report No. Date Description Revised by Reviewed by DRTFCC2511-0087 Nov. 19, 2025 Initial issue JaeHun Yun JaeJin Lee DRTFCC2511-0087(1) Dec. 03, 2025 Delete the added model name JaeHun Yun JaeJin Lee FCC ID: 2A78WBASSIQ Report No.: DRTFCC2511-0087(1) IC: 28870-BASSIQ This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-237(07)210316 Pages: 3 / 73 Table of Contents 1. General Information ............................................................................................................... 4 1.1. Description of EUT ......................................................................................................................... 4 1.2. Support Equipemnt ........................................................................................................................ 4 1.3. Testing Laboratory ......................................................................................................................... 5 1.4. Testing Environment ...................................................................................................................... 5 1.5. Measurement Uncertainty .............................................................................................................. 5 1.6. Information about the FHSS characteristics ................................................................................ 6 1.7. Conclusion of worst-case and operation mode ........................................................................... 7 1.8. Test Equipment List ........................................................................................................................ 8 2. Antenna Requirement ............................................................................................................ 9 3. Summary of Test Results .................................................................................................... 10 4. Maximum Peak Conducted Output Power ......................................................................... 11 4.1. Test Setup ..................................................................................................................................... 11 4.2. Limit ............................................................................................................................................... 11 4.3. Test Procedure .............................................................................................................................. 11 4.4. Test Results .................................................................................................................................. 12 5. 20 dB BW & Occupied BW .................................................................................................. 18 5.1. Test Setup ..................................................................................................................................... 18 5.2. Limit ............................................................................................................................................... 18 5.3. Test Procedure .............................................................................................................................. 18 5.4. Test Results .................................................................................................................................. 18 6. Carrier Frequency Separation ............................................................................................ 24 6.1. Test Setup ..................................................................................................................................... 24 6.2. Limit ............................................................................................................................................... 24 6.3. Test Procedure .............................................................................................................................. 24 6.4. Test Results .................................................................................................................................. 24 7. Number of Hopping Channels ............................................................................................ 26 7.1. Test Setup ..................................................................................................................................... 26 7.2. Limit ............................................................................................................................................... 26 7.3. Test Procedure .............................................................................................................................. 26 7.4. Test Results .................................................................................................................................. 26 8. Time of Occupancy .............................................................................................................. 29 8.1. Test Setup ..................................................................................................................................... 29 8.2. Limit ............................................................................................................................................... 29 8.3. Test Procedure .............................................................................................................................. 29 8.4. Test Results .................................................................................................................................. 29 9. Unwanted Emissions ...........................................................................…

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Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.73-0.84-0.68-6.15-3.70-2.32 MAX. Gain -0.68 PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain (dB) Frequency (MHz) MaxMinAvg 2400-1.73178-30.0815-8.48713 2450-0.845801-38.5605-7.88012 2500-0.685586-24.0318-6.79139 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -6.1530 -24.1420 -13.0295 2450 -3.7054 -26.5836 -10.6700 2500 -2.32122 -30.4301 -9.70536 ANT Test Labs：Attestation of Global Compliance Co., Ltd.