2BDON-9231547SHOWER SPEAKER

TopTech International Inc ADD: 17870 Castleton St., Ste 215, City of Industry, California, 91748, United States Tel: +1 908 930 1042 Email: [email protected] Attestation letter Date: 2026-1-12 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam, Our productSHOWER SPEAKER, model: 9231547; 9180896; 9180897; 9180899, FCC ID: 2BDON-9231547, for marketing purpose, thi s p roduct only supportsBDR (GFSK), EDR (π/4-DQPSK, 8DPSK).The o ther functions and modes were disabled to use by manufacturer in the software, the end user has no capability to activate it. Sin cerely Yours, Signature: Printed Name: Hongping Huang Title: Supervisor

CFR47§2.911(d)(5)(i)AttestationLetter TopTechInternationalInc ADD:17870CastletonSt.,Ste215,CityofIndustry,California,91748,UnitedStates Tel:+19089301042 Email:[email protected] AttestationLetter Date:2026-1-12 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsCFR47§2.911(d)(5)(i)Filing FCCID:2BDON-9231547 TopTechInternationalInccertifiesthattheequipmentforwhichauthorizationissought,isnot “covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection 2.903oftheFCCrules. Sincerely, Signature: PrintedName:HongpingHuang Title:Supervisor

CFR47§2.911(d)(5)(ii)AttestationLetter TopTechInternationalInc ADD:17870CastletonSt.,Ste215,CityofIndustry,California,91748,UnitedStates Tel:+19089301042 Email:[email protected] AttestationLetter Date:2026-1-12 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsCFR47§2.911(d)(5)(ii)Filing FCCID:2BDON-9231547 TopTechInternationalInccertifiesthatasofthedateofthefilingoftheapplication,the applicantisnotidentifiedontheCoveredListasanentityproducing“covered”equipment. AndourproductdoesnotuseKasperskysoftwareinformation. Sincerely, Signature: PrintedName:HongpingHuang Title:Supervisor

U.S.AGENTLETTEROFATTESTATION Date:2026-1-12 FEDERALCOMMUNICATIONSCOMMISSION AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsCFR47§2.911(d)(7)Filing FCCID:2BDON-9231547 TopTechInternationalInccertifiesthat,asofthedateofthefilingoftheapplication, TopTechInternationalIncisourdesignatedU.S.agentforserviceofprocessfortheabove referencedFCCID.TopTechInternationalIncacceptstomaintainanagentfornolessthan oneyearafterthegranteehasterminatedallmarketingandimportationortheconclusionof anyCommission-relatedproceedinginvolvingtheequipment. TopTechInternationalIncaccepts,asofthedateofthefilingoftheapplication,the obligationofthedesignatedU.S.agentforserviceofprocessfortheabovereferencedFCC ID. DesignatedU.S.AgentandApplicantInformation: Name:TopTechInternationalInc Address:17870CastletonSt.,Ste215,CityofIndustry,California,91748,UnitedStates FRN:0034490177 Tel.:+19089301042 Email:[email protected] Signedby(printedname):HongpingHuang Signature:

TopTechInternationalInc ADD:17870CastletonSt.,Ste215,CityofIndustry,California,91748,UnitedStates Tel:+19089301042 Email:[email protected] FCCAuthorization Date:2026-1-12 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:AgentAuthorization Towhomitmayconcern: We,TopTechInternationalInctheundersigned,herebyauthorizeShenzhenAccurateTechnology Co.,Ltd.toactonitsbehalfinallmattersrelatingtoapplicationforEquipmentauthorization,including thesigningofalldocumentsrelatingtothesematters.AllactscarriedoutbyShenzhenAccurate TechnologyCo.,Ltd.onourbehalfshallhavethesameeffectasourownaction. We,theundersigned,herebycertifythatwearenotsubjecttoadenialoffederalbenefits,thatincludes FCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988,21U.S.C.862. Thisauthorizationisvaliduntilfurtherwrittennoticefromtheapplicant. SincerelyYours, Signature: PrintedName:HongpingHuang Title:Supervisor

TopTechInternationalInc ADD:17870CastletonSt.,Ste215,CityofIndustry,California,91748,UnitedStates Tel:+19089301042 Email:[email protected] FCCConfidentialAuthorization Date:2026-1-12 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:ConfidentialityRequestregardingapplicationforcertificationof FCCID:2BDON-9231547 InaccordancewithSections0.457and0.459oftheCommission’sRules,TopTech InternationalIncherebyrequestslong-termconfidentialtreatmentofinformation accompanyingthisapplicationasoutlinedbelow: BlockDiagram Schematics OperationDescription Theabovematerialscontainproprietaryandconfidentialinformationnotcustomarily releasedtothepublic.Thepublicdisclosureofthesematerialsprovidesunjustifiedbenefits toitscompetitorsinthemarket. SincerelyYours, Signature: PrintedName:HongpingHuang Title:Supervisor

TopTechInternationalInc ADD:17870CastletonSt.,Ste215,CityofIndustry,California,91748,UnitedStates Tel:+19089301042 Email:[email protected] ProductSimilarityDeclaration Date:2026-1-12 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 DearSir/Madam, We,TopTechInternationalIncherebydeclarethatwehaveaproductnamedas SHOWERSPEAKER(model:9231547,FCCID:2BDON-9231547)wastestedby ShenzhenAccurateTechnologyCo.,Ltd.meanwhile,forourmarketingpurpose,we wouldliketolistaseriesmodel(9180896;9180897;9180899)onreportsandcertificate, allthemodelsareidenticalinelectrically.Thedifferencebetweenmodelname, appearancecolor.Pleaserefertofollowingtablefordetails: Model Appearancecolor 9231547 Blue 9180899 Blue 9180896 Black TopTechInternationalInc ADD:17870CastletonSt.,Ste215,CityofIndustry,California,91748,UnitedStates Tel:+19089301042 Email:[email protected] 9180897 Pink Weconfirmthatallinformationaboveistrue,andwe’llberesponsibleforallthe consequences.Pleasecontactmeifyouhaveanyquestion. Sincerely, Signature: PrintedName:HongpingHuang Title:Supervisor

Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 1 / 15 External Photos Tested Model: 9231547 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 2 / 15 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 3 / 15 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 4 / 15 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 5 / 15 Multiple Model: 9180896 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 6 / 15 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 7 / 15 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 8 / 15 Multiple Model :9180897 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 9 / 15 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 10 / 15 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 11 / 15 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 12 / 15 Multiple Model :9180899 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 13 / 15 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 14 / 15 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT External Photos External Photos Page 15 / 15 ***** END *****

Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT Internal Photos Internal Photos Page 1 / 5 Internal Photos Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT Internal Photos Internal Photos Page 2 / 5 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT Internal Photos Internal Photos Page 3 / 5 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT Internal Photos Internal Photos Page 4 / 5 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF EUT Internal Photos Internal Photos Page 5 / 5 ANT ***** END *****

Note: This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA, or any agency of the Federal Government. The information marked “#” is provided by the applicant, the laboratory is not responsible for its authenticity and this information can affect the validity of the result in the test report. Customer model name, addresses, names, trademarks etc. are included but no need marked. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. Shenzhen Accurate Technology Co., Ltd. Floor 1, KuMaKe Building, Dongzhou Community, Guangming Street, Guangming District, Shenzhen, Guangdong, China. Tel: +86 755-26503290 Web: www.atc-lab.com Rev:A/4.0(2024/11/01) Page 1 of 6 TR-4-E-R063 TEST REPORT Applicant Name : TopTech International Inc Address : 17870 Castleton St., Ste 215, City of Industry, California, 91748, United States Report Number : 2504Z86205E-RF FCC ID: 2BDON-9231547 Test Standard (s) 47 CFR §2.1093 Sample Description Product Type: SHOWER SPEAKER Model No.: 9231547, 9180896, 9180897, 9180899 Trade Mark: N/A Date Received: 2025-12-22 Report Date: 2026-01-08 Test Result: The EUT complied with the standards above. Prepared and Checked By: Approved By: Jason Fan Bob.Liao EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z86205E-RF Rev:A/4.0(2024/11/01) Page 2 of 6 TR-4-E-R051 TABLE OF CONTENTS DOCUMENT REVISION HISTORY ................................................................................................................ 3 GENERAL INFORMATION ............................................................................................................................ 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ........................................................................ 4 OBJECTIVE ................................................................................................................................................... 4 TEST FACILITY .............................................................................................................................................. 4 RF EXPOSURE .............................................................................................................................................. 5 APPLICABLE STANDARD ................................................................................................................................. 5 TEST RESULT ................................................................................................................................................ 5 EXHIBIT A-EUT PHOTOGRAPHS ................................................................................................................ 6 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z86205E-RF Rev:A/4.0(2024/11/01) Page 3 of 6 TR-4-E-R051 DOCUMENT REVISION HISTORY Revision Number Report Number Description of Revision Date of Revision Rev.00 2504Z86205E-RF Original Report 2026-01-08 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z86205E-RF Rev:A/4.0(2024/11/01) Page 4 of 6 TR-4-E-R051 GENERAL INFORMATION Product Description for Equipment under Test (EUT) Product SHOWER SPEAKER Tested Model 9231547 Multiple Model 9180896, 9180897, 9180899 Model Difference # The difference between model name, appearance color. Please refer to DOS letter for details. The applicant provided model “9231547” for testing. Frequency Range 2402-2480MHz Maximum Conducted Output Power 7.89 dBm Antenna Specification # Internal Antenna, Antenna gain: -0.68dBi (It is provided by the applicant.) Voltage Range # DC 5V from USB Type-C port or DC 3.7V from battery SKU Number 9231547, 9180896, 9180897, 9180899 UPC Number 1922342569443, 1922346329401, 1922346329371, 1922346329388 Sample Serial Number 3DAK-2 (RF Conducted Test) (Assigned by ATC, Shenzhen) Sample/EUT Status Good condition Note: The device comes with an USB cable (0.5m). Objective This test report is in accordance with Part 2-Subpart J, Part 15-Subparts C and Part 2-Subpart J, Radiofrequency Radiation Exposure of the Federal Communication Commission rules. The tests were performed in order to determine compliance with FCC §2.1093 rules. Test Facility The test site used by Shenzhen Accurate Technology Co., Ltd. to collect test data is located on the Floor 1, KuMaKe Building, Dongzhou Community, Guangming Street, Guangming District, Shenzhen, Guangdong, China. Accredited by American Association for Laboratory Accreditation (A2LA).The Certificate Number is 4297.01. Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z86205E-RF Rev:A/4.0(2024/11/01) Page 5 of 6 TR-4-E-R051 RF EXPOSURE Applicable Standard According to FCC §2.1093, 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. According to KDB 447498 D01 General RF Exposure Guidance v06. The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(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 1. f(GHz) is the RF channel transmit frequency in GHz. 2. Power and distance are rounded to the nearest mW and mm before calculation. 3. The result is rounded to one decimal place for comparison. 4. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test Exclusion. Test result For worst case: Frequency (MHz) Tune-Up Conducted Output Power # (dBm) Tune-Up Conducted Output Power # (mW) Distance (mm) Calcu…

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AntennaSpecification Summary ITEMANTSPEC ModelName2.4GANT Frequency2400-2500MHz MAX.Gain-0.68dBi PolarizationHorizontalandVertical AzimuthBeamPatternOmni-directional Impedance50Ohm Manufacture ShenzhenYuhaoSendaTechnologyCo.,LTD 3rdFloor,Building4,XiyuantongIndustrialPark,Zikeng Village,ShiyanStreet,Bao'anDistrict,ShenzhenCity, GuangdongProvince AntennaPhoto Antennapattern

Note: This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA, or any agency of the Federal Government. The information marked ―#‖ is provided by the applicant, the laboratory is not responsible for its authenticity and this information can affect the validity of the result in the test report. Customer model name, addresses, names, trademarks etc. are included but no need marked. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. Shenzhen Accurate Technology Co., Ltd. Floor 1, KuMaKe Building, Dongzhou Community, Guangming Street, Guangming District, Shenzhen, Guangdong, China. Tel: +86 755-26503290 Web: www.atc-lab.com Rev:A/4.0(2024/11/01) Page 1 of 79 TR-4-E-R014 TEST REPORT Applicant Name: TopTech International Inc Address: 17870 Castleton St., Ste 215, City of Industry, California, 91748, United States Report Number: 2504Z86205E-RF-00A FCC ID: 2BDON-9231547 Test Standard (s) FCC PART 15.247 Sample Description Product Name: SHOWER SPEAKER Model No.: 9231547, 9180896, 9180897, 9180899 Trade Mark: N/A Date Received: 2025-12-22 Report Date: 2026-01-08 Test Result: The EUT complied with the standards above. Prepared and Checked By: Approved By: Jason Fan Bob.Liao EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z86205E-RF-00A Rev:A/4.0(2024/11/01) Page 2 of 79 TR-4-E-R014 TABLE OF CONTENTS DOCUMENT REVISION HISTORY ................................................................................................................ 4 GENERAL INFORMATION ............................................................................................................................ 5 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ........................................................................ 5 OBJECTIVE ................................................................................................................................................... 6 TEST METHODOLOGY .................................................................................................................................... 6 TEST FACILITY .............................................................................................................................................. 6 MEASUREMENT UNCERTAINTY ....................................................................................................................... 6 SYSTEM TEST CONFIGURATION ............................................................................................................... 7 DESCRIPTION OF TEST CONFIGURATION......................................................................................................... 7 EUT EXERCISE SOFTWARE AND POWER LEVEL # ............................................................................................ 7 SPECIAL ACCESSORIES ................................................................................................................................. 7 EQUIPMENT MODIFICATIONS .......................................................................................................................... 7 SUPPORT EQUIPMENT LIST AND DETAILS ....................................................................................................... 7 EXTERNAL I/O CABLE .................................................................................................................................... 7 BLOCK DIAGRAM OF TEST SETUP .................................................................................................................. 8 SUMMARY OF TEST RESULTS ................................................................................................................. 10 TEST EQUIPMENT LIST ............................................................................................................................. 11 ANTENNA REQUIREMENT......................................................................................................................... 12 APPLICABLE STANDARD ............................................................................................................................... 12 ANTENNA CONNECTOR CONSTRUCTION ....................................................................................................... 12 AC LINE CONDUCTED EMISSIONS .......................................................................................................... 13 APPLICABLE STANDARD ............................................................................................................................... 13 EUT SETUP ................................................................................................................................................ 13 EMI TEST RECEIVER SETUP ........................................................................................................................ 13 TEST PROCEDURE ...................................................................................................................................... 13 CALCULATION ............................................................................................................................................. 14 TEST DATA ................................................................................................................................................. 14 RADIATED SPURIOUS EMISSIONS .......................................................................................................... 19 APPLICABLE STANDARD ............................................................................................................................... 19 EUT SETUP ........................................…

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Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF Test Photos Test Photos Page 1 / 3 Photo of Power Line Conducted Emission Measurement Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF Test Photos Test Photos Page 2 / 3 Radiated Spurious Emissions Test View (9kHz-30MHz) Radiated Spurious Emissions Test View (30MHz- 1GHz) Shenzhen Accurate Technology Co., Ltd. No.: 2504Z86205E-RF Test Photos Test Photos Page 3 / 3 Radiated Spurious Emissions Test View (1-18GHz) Radiated Spurious Emissions Test View (18-25GHz) ***** END *****