2BGTK-BS12307BLUETOOTH SPEAKER

* 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. SC6033553 U.S. Agent Designation for Service of Process - Certification Attestation Letter 3/19/2026 TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2BGTK-BS12307 FRN of applicant: 0035513951 Per section 2.911(d)(7) of the FCC rules, Bugani Acoustics Co., Limited FRN: 0035513951(“the applicant”) certifies that the equipment for which authorization is sought is designated to thefollowing U.S. agent* for service of process: Company Name: Global Product Services and Consultation LLC FCC Registration Number (FRN): 0033406703 Physical U.S. Company Address: 328 W Palm Ave. Monrovia, CA91016 Contact Person: Michael Chan Tel: +1 626 366 4358 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: Printed name: Runlong Wang Title: Manager Company Name: Bugani Acoustics Co., Limited Date: 3/19/2026 Signed: Printed name: Michael Chan Title: Technical Director Company Name: Global Product Services and Consultation LLC Date: 3/25/2026

BuganiAcousticsCo.,Limited 2026-03-19 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(i)requestfor(FCCID:2BGTK-BS12307) [BuganiAcousticsCo.,Limited](“theapplicant”)certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivingan equipmentauthorizationpursuanttosection2.903oftheFCCrules. Wealsocertifythat,asofthedateofthefilingoftheapplication,theequipmentdoes notutilizecyber-securityoranti-virussoftwarefromKasperskyLab,Inc,oranyofits successorsandassignees,whichisalsoonthe“coveredlist”. Sincerely, RunlongWang Manager BuganiAcousticsCo.,Limited FLAT150615/FCHEUNGFUNGCOMMERCIALBLDG21-25CHEUNGSHAWANROAD SHAMSHUIPOKL,China,Kowloon,China BuganiAcousticsCo.,Limited 2026-03-19 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(ii)requestfor(FCCID: 2BGTK-BS12307 ) [BuganiAcousticsCo.,Limited](“theapplicant”)certifiesthat,asofthedateofthefiling oftheapplication,theapplicantisnotidentifiedontheCoveredListasanentity producing“covered”equipment. Sincerely, RunlongWang Manager BuganiAcousticsCo.,Limited FLAT150615/FCHEUNGFUNGCOMMERCIALBLDG21-25CHEUNGSHAWANROAD SHAMSHUIPOKL,China,Kowloon,China

BuganiAcousticsCo.,Limited 2026-03-19 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeGuangdongGlobalTestingTechnologyCo.,Ltd.toact onourbehalfinallmattersrelatingtoapplicationforequipmentauthorization,includingthe signingofalldocumentsrelatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothe denialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseAct of1988,21U.S.C.853(a). Thisagreementexpiresoneyearfromthecurrentdate. Sincerely, RunlongWang Manager BuganiAcousticsCo.,Limited FLAT150615/FCHEUNGFUNGCOMMERCIALBLDG21-25CHEUNGSHAWANROADSHAM SHUIPOKL,China,Kowloon,China

BuganiAcousticsCo.,Limited 2026-03-19 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:CONFIDENTIALITYREQUESTFOR(EUTName:BLUETOOTHSPEAKER /Model:BS12307,A01,BS12308/FCCID:2BGTK-BS12307) ToWhomItMayConcern: Thisletterservesasanofficialrequestforconfidentialityundersections0.457and0.459 ofCFR47.Wehaverequestedthatthe(BlockDiagram,OperationalDescription,Schematics) requiredtobesubmittedwiththisapplicationbepermanentlywithheldfrompublic review. Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedtothepublic.The publicdisclosureofthesematerialsmaybeharmfultotheapplicantandprovideunjustifiedbenefitstoitscompetitors. Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, RunlongWang Manager BuganiAcousticsCo.,Limited FLAT150615/FCHEUNGFUNGCOMMERCIALBLDG21-25CHEUNGSHA WANROADSHAMSHUIPOKL,China,Kowloon,China

External Photographs View of EUT-1 View of EUT-2 Page 2 of 3 View of EUT-3 View of EUT-4 Page 3 of 3 View of EUT-5 View of EUT-6

型号/ Model No.: BS12307 输入/ Input: 5V 2A FCC ID: 2BGTK-BS12307 CMIIT ID: SN: BS1230725B0100001 布迦尼声学国际有限公司 BUGANi Acoustics Co., Limited Designed in California MADE IN CHINA PORTABLE BLUETOOTH SPEAKER 便携式蓝牙音响 ��.��mm ��.��mm

Internal Photographs Internal View of EUT-1 Internal View of EUT-2 Page 2 of 5 Internal View of EUT-3 Internal View of EUT-4 Bluetooth Antenna Page 3 of 5 Internal View of EUT-5 Internal View of EUT-6 Page 4 of 5 Internal View of EUT-7 Internal View of EUT-8 Page 5 of 5 Internal View of EUT-9

RF EXPOSURE EVALUATION EUT Specification FCC ID 2BGTK-BS12307 EUT Name BLUETOOTH SPEAKER Model BS12307 Series Model A01, BS12308 Model Difference Note: Only the differences in model naming and appearance color. Antenna gain (Max) 2.499 dBi Operation Frequency 2402-2480MHz Classification Per Stipulated Test Standard §15.247(i), §2.1093 Modulation GFSK, π/4-DQPSK, 8DPSK Max. output power 1.19 dBm(1.315mW) Test Requirement: According to ß15.247(i) and ß1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Routine SAR evaluation refers to that specifically required by ß2.1093, using measurements or computer simulation. When routine SAR evaluation is not required, portable transmitters with output power greater than the applicable low threshold require SAR evaluation to quality for TCB approval. One antenna is available for the EUT. The minimum separation distance is 5mm. Transmit Frequency (MHz) Mode Measured Power (dBm) Tune up Power (dBm) Max tune up power(dBm) Calculation Result 1-g SAR Verdict 2402 3DH5 1.19 1 ± 1 2 0.491266 3 PASS Note: No need for SAR test Signature: Shawn Wen Date: 2025-03-18

Shenzhen Tianchen Hechuang Technology Co., Ltd. 301, Building A, Nankeng No.1 Industrial Zone, Bantian Subdistrict, Longgang District, Shenzhen Test Report of On-board PIFA Antenna in 2.4G-2.48G Band Test Environment: CTSI Anechoic Chamber Test System Antenna Sample and Physical Dimensions Antenna Passive S-Parameters: Voltage Standing Wave Ratio (VSWR), Return Loss, and Smith Chart Antenna Efficiency and Gain Antenna Antenna Antenna Antenna

TRF No.: 04-E001-0B TRF Originator: GTG TRF Date: 2023-12-13 Web: www.gtggroup.com E-mail: [email protected] Tel.: 86-400 755 8988 CFR 47 FCC PART 15 SUBPART C(DSS) TEST REPORT For BLUETOOTH SPEAKER MODEL NUMBER: BS12307, A01, BS12308 REPORT NUMBER: E04A26010515F00601 ISSUE DATE: March 17, 2026 FCC ID: 2BGTK-BS12307 Prepared for Bugani Acoustics Co., Limited FLAT 1506 15/F CHEUNG FUNG COMMERCIAL BLDG 21-25 CHEUNG SHA WAN ROAD SHAM SHUI PO KL, China, Kowloon, China Prepared by Guangdong Global Testing Technology Co., Ltd. Room 101-105, 203-210, Building 1, No.2, Keji 8 Road, Songshan Lake Park, Dongguan city, Guangdong, People’s Republic of China, 523808 This report is based on a single evaluation of the submitted sample(s) of the above mentioned product, it does not imply an assessment of the production of the products. This report shall not be reproduced, except in full, without the written approval of Guangdong Global Testing Technology Co., Ltd. REPORT NO.: E04A26010515F00601 Page 2 of 111 TRF No.: 04-E001-0B Global Testing , Great Quality. Revision History Rev. Issue Date Revisions Revised By V0 March 17, 2026 Initial Issue REPORT NO.: E04A26010515F00601 Page 3 of 111 TRF No.: 04-E001-0B Global Testing , Great Quality. Summary of Test Results Test Item Clause Limit/Requirement Result Antenna Requirement ANSI C63.10-2020 FCC Part 15.203/15.247 (c) Pass AC Power Line Conducted Emission ANSI C63.10-2020 FCC Part 15.207 Pass Conducted Output Power ANSI C63.10-2020 FCC Part 15.247 (b)(1) Pass 20 dB Bandwidth and 99% Occupied Bandwidth ANSI C63.10-2020 FCC Part 15.247 (a)(1) Pass Carrier Hopping Channel Separation ANSI C63.10-2020 FCC Part 15.247 (a)(1) Pass Number of Hopping Frequency ANSI C63.10-2020 FCC Part 15.247 (b)(1) Pass Time of Occupancy (Dwell Time) ANSI C63.10-2020 FCC Part 15.247 (a)(1) Pass Conducted Bandedge and Spurious Emission ANSI C63.10-2020 FCC Part 15.247(d) Pass Radiated Band edge and Spurious Emission ANSI C63.10-2020 FCC Part 15.205/15.209 Pass Duty Cycle ANSI C63.10-2020 None; for reporting purposes only. Pass *This test report is only published to and used by the applicant, and it is not for evidence purpose in China. *The measurement result for the sample received is <Pass> according to <CFR 47 FCC PART 15 SUBPART C(DSS)> when <Accuracy Method> decision rule is applied. REPORT NO.: E04A26010515F00601 Page 4 of 111 TRF No.: 04-E001-0B Global Testing , Great Quality. CONTENTS 1. ATTESTATION OF TEST RESULTS ..................................................................................... 5 2. TEST METHODOLOGY ......................................................................................................... 6 3. FACILITIES AND ACCREDITATION ..................................................................................... 6 4. CALIBRATION AND UNCERTAINTY ................................................................................... 7 4.1. MEASURING INSTRUMENT CALIBRATION ........................................................... 7 4.2. MEASUREMENT UNCERTAINTY ............................................................................ 7 5. EQUIPMENT UNDER TEST .................................................................................................. 8 5.1. DESCRIPTION OF EUT ........................................................................................... 8 5.2. CHANNEL LIST ........................................................................................................ 8 5.3. MAXIMUM Output Powe ........................................................................................... 9 5.4. TEST CHANNEL CONFIGURATION ........................................................................ 9 5.5. THE WORSE CASE POWER SETTING PARAMETER ............................................ 9 5.6. DESCRIPTION OF AVAILABLE ANTENNAS ......................................................... 10 5.7. SUPPORT UNITS FOR SYSTEM TEST ................................................................. 10 5.8. SETUP DIAGRAM .................................................................................................. 11 6. MEASURING EQUIPMENT AND SOFTWARE USED......................................................... 12 7. ANTENNA PORT TEST RESULTS ..................................................................................... 14 7.1. Conducted Output Power ........................................................................................ 14 7.2. 20 dB Bandwidth and 99% Occupied Bandwidth..................................................... 15 7.3. Carrier Hopping Channel Separation ...................................................................... 16 7.4. Number of Hopping Frequency ............................................................................... 18 7.5. Time of Occupancy (Dwell Time) ............................................................................ 19 7.6. Conducted Bandedge and Spurious Emission ........................................................ 21 7.7. Duty Cycle .............................................................................................................. 23 8. RADIATED TEST RESULTS ............................................................................................... 24 8.1. Radiated Band edge and Spurious Emission .......................................................... 30 9. ANTENNA REQUIREMENT ................................................................................................ 42 10. AC POWER LINE CONDUCTED EMISSION ......................................................... 43 11. TEST DATA - Appendix A ..................................................................................... 46 REPORT NO.: E04A26010515F00601 Page 5 of 111 TRF No.: 04-E001-0B Global Testing , Great Quality. 1. ATTESTATION OF TEST RESULTS Applicant Information Company Name: Bugani Acoustics Co., Limited Address: FLAT 1506 15/F CHEUNG FUNG COMMERCIAL BLDG 21-25 CHEUNG SH…

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Setup Photographs AC Power Line Conducted Emission Radiated Band edge and Spurious Emission Page 2 of 2