2A9OO-UW330BActive Subwoofer

UltimeaTechnology(Shenzhen)Limited Address ：20thFloor,Building4,TiananCloudPark,BantianSt.,LonggangDistrict,Shenzhen,China GranteeCode:2A9OO FRN:0033166620 Date:2026-07-01 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsPart2.911(d)(7)Filing SUBJECT:FCCApplicationforFCCID:2A9OO-UW330B UltimeaTechnology(Shenzhen)Limited certifiesthat,asofthedateofthefilingoftheapplication, UltimeaInc.isourdesignatedU.S.agentforserviceofprocessfortheabovereferenced FCCID. UltimeaTechnology(Shenzhen)Limited acceptstomaintainanagentfornolessthan oneyearafterthegranteehasterminatedallmarketingandimportationortheconclusionof anyCommission-relatedproceedinginvolvingtheequipment. UltimeaInc.accepts,asofthedateofthefilingoftheapplication,theobligationofthe designatedU.S.agentforserviceofprocessfortheabovereferencedFCCID. DesignatedU.S.AgentInformation: Name:Ultimea Inc. Address:801SDupontAve,STEG,Ontario,CA91761,UnitedStates FRN:0033593849 ContactPerson:MonicaLin Tel.:+1888-598-8875 Email:[email protected] Sincerely, SignedonbehalfofUltimeaTechnology (Shenzhen)Limited SignedonbehalfofUltimeaInc. Name:YoyoYu Name:MonicaLin Title:ManagerTitle:Manager Date:2026-7-1Date:2026-7-1

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2A9OO-UW330B UW330, UW331, UW332, UW333, UW334, UW335 We, Applicant Company Name: Ultimea Technology (Shenzhen) Limited Address: 20th Floor, Building 4, Tianan Cloud Park, Bantian St., Longgang District, Shenzhen, China Phone: +86-755-23762801 certify 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. This includes the cybersecurity and anti-virus software produced or provided by Kaspersky Lab, Inc. or any of ist successors and assignees. We certify that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2026-07-02 Signature Date Name / Title: Yoyo Yu / Manager Company: Ultimea Technology (Shenzhen) Limited Address: 20th Floor, Building 4, Tianan Cloud Park, Bantian St., Longgang District, Shenzhen, China Phone: +86-755-23762801 Fax: N/A E-Mail: [email protected]

Due Diligence Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern FCC ID Model name 2A9OO-UW330B UW330, UW331, UW332, UW333, UW334, UW335 Pursuant to KDB 986446 D01 Covered Equipment Guidance the evaluation of the product above shows compliance for the following reasons: Compliance Evaluation process Results Inherent compliance The chipset(s) used is not capable of running the cybersecurity and/or anti-virus software Compliance The memory used does not allow the running the cybersecurity and/or anti-virus software Compliance The storage capacity does not allow the running the cybersecurity and/or anti-virus software Compliance The operating system used is not capable of running the cybersecurity and/or anti-virus software Compliance No inherent compliance Based on software bill of material Based on scan for running software on the device Based on filesystem scan for cybersecurity and/or anti-virus software The equipment for which authorization is sought complies with the rules and fulfils the requirements as detailed in the above mentioned KDB. Evaluation performed by Company Name: Shenzhen Huaxia Testing Technology Co., Ltd Contact Name: Yoyo Zhou Address: 1F., Block A of Tongsheng Technology Building, Huahui Road, Dalang Street, Longhua District, Shenzhen, China Phone: +86-755-26648642 Email: [email protected] Signature: Date: 2026-06-29

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products: FCC ID Model name 2A9OO-UW330B UW330, UW331, UW332, UW333, UW334, UW335 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics • the Part List • the Tune up Information The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2026-07-02 Signature Date Name / Title: Yoyo Yu / Manager Company: Ultimea Technology (Shenzhen) Limited Address: 20th Floor, Building 4, Tianan Cloud Park, Bantian St., Longgang District, Shenzhen, China Phone: +86-755-23762801 Fax: N/A E-Mail: [email protected]

UltimeaTechnology(Shenzhen)Limited ModelConfirmationLetter We,UltimeaTechnology(Shenzhen)Limitedcertifytheproduct: ActiveSubwoofer ModelNo.:UW330,UW331,UW332,UW333,UW334,UW335 FCCID:2A9OO-UW330B Theirelectricalcircuitdesign,layout,componentsusedandinternalwiringareidentical, Onlythemodelnamearedifferent. Signiture: GranteeContact:YoyoYu CompanyName:UltimeaTechnology(Shenzhen)Limited Date:July1,2026

Externalphotos FCC ID: 2A9OO-UW330B

Internalphotos FCC ID: 2A9OO-UW330B BTAntenna RXAntenna

SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD 102A,102B,Building2,ShanghenglangNewIndustrialZone,ShanghenglangCommunity, DalangStreet,LonghuaDistrict,Shenzhen,Guangdong,People’sRepublicofChina,518000 Telephone:+86-755-26648640 Fax:+86-755-26648637 Website:www.cqa-cert.com ReportTemplateVersion:V06 ReportTemplateRevisionDate:2026-01-30 RFExposureEvaluationReport Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthisreportreferonlyto thesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20260500958E-02 Applicant:UltimeaTechnology(Shenzhen)Limited AddressofApplicant: 20thFloor,Building4,TiananCloudPark,BantianSt.,LonggangDistrict, Shenzhen,China EquipmentUnderTest(EUT): EUTName: ActiveSubwoofer ModelNo.: UW330,UW331,UW332,UW333,UW334,UW335 TestModelNo.: UW330 BrandName: ULTIMEA FCCID: 2A9OO-UW330B Standards: 47CFRPart1.1307 47CFRPart1.1310 447498D04InterimGeneralRFExposureGuidancev01 DateofReceipt:2026-05-12 DateofTest: 2026-05-12to2026-06-17 DateofIssue:2026-06-29 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500958E-02 Page:2of6 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20260500958E-02Rev.01 Initialreport 2026-06-29 We,UltimeaTechnology(Shenzhen)Limitedcertifytheproduct: ModelNo.:UW220,UW221,UW222,UW223,UW224,UW225 Theirelectricalcircuitdesign,layout,componentsusedandinternalwiringareidentical, Onlythemodelnameisdifferent. SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500958E-02 Page:3of6 2Contents Page 1VERSION............................................................................................................................................................................2 2CONTENTS........................................................................................................................................................................3 ..................................................................................................................................................................................................3 3GENERALINFORMATION..............................................................................................................................................4 3.1CLIENTINFORMATION...................................................................................................................................................4 3.2GENERALDESCRIPTIONOFEUT...................................................................................................................................4 3.3GENERALDESCRIPTIONOFBLE...................................................................................................................................4 4MPEEVALUATION...........................................................................................................................................................5 4.1RFEXPOSURECOMPLIANCEREQUIREMENT.................................................................................................................5 4.1.1Limits....................................................................................................................................................................5 4.1.2TestProcedure...................................................................................................................................................5 4.1.3EUTRFExposure..............................................................................................................................................6 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500958E-02 Page:4of6 3GeneralInformation 3.1ClientInformation Applicant:UltimeaTechnology(Shenzhen)Limited AddressofApplicant: 20thFloor,Building4,TiananCloudPark,BantianSt.,LonggangDistrict, Shenzhen,China Manufacturer: UltimeaTechnology(Shenzhen)Limited AddressofManufacturer:20thFloor,Building4,TiananCloudPark,BantianSt.,LonggangDistrict, Shenzhen,China Factory:ZhongShanCityRichsoundElectronicIndustrialLtd. AddressofFactory:No16,EastShaGangRoad,GangKouTown,ZhongShanCity, GuangDong,528447,China 3.2GeneralDescriptionofEUT ProductName: ActiveSubwoofer ModelNo.: UW330,UW331,UW332,UW333,UW334,UW335 TestModelNo.: UW330 TradeMark: ULTIMEA SoftwareVersion: 17 HardwareVersion: V1.0 EUTPowerSupply: PowersupplyAC120V/60Hz 3.3GeneralDescriptionofBLE OperationFrequency: 2402MHz~2480MHz BluetoothVersion: BluetoothSpec6.0 ModulationType: GFSK NumberofChannel: 40 TransferRate:1Mbps/2Mbps SampleType: MobilePortableFixLocation AntennaType: FPCantenna AntennaGain: 2.95dBi Note： Theaboveparameterswilldirectlyaffectthetestresults.Theinformationisprovidedbytheapplicant. SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500958E-02 Page:5of6 4MPEEvaluation 4.1RFExposureComplianceRequirement 4.1.1Limits ThetableappliestoanyRFsource(i.e.,singlefixed,mobile,andportabletransmitters)andspecifiespower anddistancecriteriaforeachofthefivefrequencyrangesusedfortheMPElimits.Thesecriteriaapplyat separationdistancesfromanypartoftheradiatingstructureofatleastλ/2π.Thethresholdsarebasedonthe generalpopulationMPElimitswithasingleperfectreflection,outsideofthereactivenear-field,andinthemain beamoftheradiator.FormobiledevicesthatarenotexemptperTableB.1[Table1of§1.1307(b)(1)(i)(C)]at distancesfrom20cmto40cmandin0.3GHzto6GHz,evaluationofcompliancewiththeexposurelimitsin §1.1310isnecessaryiftheERPofthedeviceisgreaterthanERP20cminFormula(B.1)[repeatedfrom§ 2.1091(c)(1)and§1.1307(b)(1)(i)(B)]. IftheERPisnoteasilyobtained,thentheavailablemaximumtime-averagedpowermaybeused(i.e.,without considerationofERPonlyifthephysicaldimensionsoftheradiatingstructure(s)donotexceedtheelectrical lengthofλ/4oriftheantennagainislessthanthatofahalf-waveDipole. SAR-basedexemptionsareconstantatseparationdistance…

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Shenzhen World Elite Electronic Co. LTD. Sample Approval Sheet Product Information ： Customer Zhong Shan City Richsound Electronic Industrial Ltd Material Description UW220 BT Antenna Customer’s Part number 101000807 Specifications FPC（49*9.5mm）+Black Coaxial Cable（φ1.13*260mm） +Welding+UV adhesive+Sponge Supplier’s Part number 01-05-001-000037 Date 2026-1-29 Supplier ： Prepared ByChecked ByApproved By Zhang DengqiaoLi YuepengZhang Hongying Customer Approval ： Accepted ByChecked ByApproved By Results ： □Full Approval □Conditional Approval □Unqualified □Others: Shenzhen World Elite Electronic Co. LTD. Add:Xiangyuer Industrial Park, No. 8, Longsheng Road, Longgang Street, Longgang District, Shenzhen, Guangdong, China Tel:86-755-89983786 Page 2 Contents 1、Specification...................................................................... 3 1.1 Electrical specification standard......................................................3 1.1.1 Electrical Specifications..........................................................................3 1.1.2 Antenna Matching Network......................................................................3 2、Test...........................................................................................3 2.1 Test of passive S11........................................................................3 2.1.1 Test connection......................................................................................3 2.1.2 Passive S11............................................................................................4 2.2 Gain and efficiency test.................................................................4 2.2.1 Test Position..........................................................................................4 2.2.2 Test equipment.......................................................................................4 2.2.3 Results Summary....................................................................................5 2.2.4 Radiation Pattern Results.........................................................................5 3、Conclusion...................................................................................6 4、Part Drawing.......................................................................7 Page 3 1 、 Specification This report mainly provides the testing status of various electrical and structural performance parameters of UW220 BT Antenna. Figure 1Antenna 1.1 Electrical specification standard 1.1.1 Electrical Specifications The antenna operates in the 2400-2480 MHz . The following table is the electrical performance index of the antenna designed by our company. 1.1.2 Antenna Matching Network 2、Test The antenna was debugged and tested with the prototype provided by the customer. 2.1 Test of passive S11 2.1.1 Test connection The passive S11 test device is connected as follows: Network Analyzer→Test Line→Test Fixture. AntennaUW220 BT Antenna Frequency Range2400-2480MHz VSWR< 2.0 Efficiency>50% Impedance50 ohm PolarizationLinear polarization ElementValue E1(0402)NC E2(0402)NC E3(0402)NC Page 4 2.1.2Passive S11 The following table shows the standing wave ratio values of the edge frequency points of the antenna operating frequency band.The waveform of Return Loss and VSWR obtained by the test is shown as follows. Frequency(MHz)24002440 2480 VSWR1.501.371.37 Return Loss-14.02-16.04-16.14 2.2 Gain and efficiency test 2.2.1Test Position Microwave anechoic chamber, the test frequency range is 400MHz-6GHz. 2.2.2Test equipment Network analyzer, standard horn antenna, multi-probe near field antenna test system, test computer, etc Page 5 2.2.3 Results Summary In the microwave anechoic chamber, the measured values related to efficiency and gain are shown in the table below. Frequency(MHz)Gain(dBi)Efficency(%) 24002.3251.83 24102.4252.04 24202.6353.04 24302.7952.91 24402.7951.49 24502.8852.05 24602.8951.09 24702.9451.17 24802.9551.51 24902.7850.39 25002.6750.47 2.2.4 Radiation Pattern Results Page 6 3 、 Conclusion This antenna is designed on the basis of the prototype provided by the customer. The above electrical performance parameters are tested under the environmental treatment conditions of the test prototype. The electrical parameters and structural performance have met the technical requirements. Please confirm! Page 7 4 、 Part Drawing

SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD 102A,102B,Building2,ShanghenglangNewIndustrialZone,ShanghenglangCommunity, DalangStreet,LonghuaDistrict,Shenzhen,Guangdong,People’sRepublicofChina,518000 Telephone:+86-755-26648640 Fax:+86-755-26648637 Website:www.cqa-cert.com ReportTemplateVersion:V06 ReportTemplateRevisionDate:2026-01-30 TestReport Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthisreportreferonly tothesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20260500958E-01 Applicant:UltimeaTechnology(Shenzhen)Limited AddressofApplicant: 20thFloor,Building4,TiananCloudPark,BantianSt.,LonggangDistrict, Shenzhen,China EquipmentUnderTest(EUT): Product: ActiveSubwoofer ModelNo.: UW330,UW331,UW332,UW333,UW334,UW335 TestModelNo.: UW330 BrandName: ULTIMEA FCCID: 2A9OO-UW330B Standards:47CFRPart15,SubpartC KDB558074D0115.247MeasGuidancev05r02 ANSIC63.10:2020 DateofReceipt:2026-05-12 DateofTest: 2026-05-12to2026-06-17 DateofIssue:2026-06-29 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500958E-01 Page: 2 of 64 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20260500958E-01Rev.01Initialreport2026-06-29 We,UltimeaTechnology(Shenzhen)Limitedcertifytheproduct: ModelNo.:UW330,UW331,UW332,UW333,UW334,UW335 Theirelectricalcircuitdesign,layout,componentsusedandinternalwiringareidentical, Onlythemodelnameisdifferent. SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500958E-01 Page: 3 of 64 2TestSummary TestItemTestRequirementTestmethodResult AntennaRequirement 47CFRPart15,SubpartCSection 15.203/15.247(c) ANSI C63.10-2020+Cor. 1-2023+C63.10a- 2024+Erratato C63.10a-2024 PASS ACPowerLine Conducted Emission 47CFRPart15,SubpartCSection 15.207 ANSI C63.10-2020+Cor. 1-2023+C63.10a- 2024+Erratato C63.10a-2024 PASS ConductedPeakOutput Power 47CFRPart15,SubpartCSection 15.247(b)(3) ANSI C63.10-2020+Cor. 1-2023+C63.10a- 2024+Erratato C63.10a-2024 PASS 6dBOccupied Bandwidth 47CFRPart15,SubpartCSection 15.247(a)(2) ANSI C63.10-2020+Cor. 1-2023+C63.10a- 2024+Erratato C63.10a-2024 PASS PowerSpectralDensity 47CFRPart15,SubpartCSection 15.247(e) ANSI C63.10-2020+Cor. 1-2023+C63.10a- 2024+Erratato C63.10a-2024 PASS Band-edgeforRF ConductedEmissions 47CFRPart15,SubpartCSection 15.247(d) ANSI C63.10-2020+Cor. 1-2023+C63.10a- 2024+Erratato C63.10a-2024 PASS RFConductedSpurious Emissions 47CFRPart15,SubpartCSection 15.247(d) ANSI C63.10-2020+Cor. 1-2023+C63.10a- 2024+Erratato C63.10a-2024 PASS RadiatedSpurious Emissions 47CFRPart15,SubpartCSection 15.205/15.209 ANSI C63.10-2020+Cor. 1-2023+C63.10a- 2024+Erratato C63.10a-2024 PASS Restrictedbandsaround fundamentalfrequency (RadiatedEmission) 47CFRPart15,SubpartCSection 15.205/15.209 ANSI C63.10-2020+Cor. 1-2023+C63.10a- 2024+Erratato C63.10a-2024 PASS SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500958E-01 Page: 4 of 64 3Contents Page 1VERSION..........................................................................................................................................................................2 2TESTSUMMARY............................................................................................................................................................3 3CONTENTS......................................................................................................................................................................4 4GENERALINFORMATION...........................................................................................................................................5 4.1CLIENTINFORMATION.................................................................................................................................................5 4.2GENERALDESCRIPTIONOFEUT.................................................................................................................................5 4.3ADDITIONALINSTRUCTIONS........................................................................................................................................7 4.4TESTENVIRONMENT...................................................................................................................................................8 4.5DESCRIPTIONOFSUPPORTUNITS...............................................................................................................................8 4.6TESTCONFIGURATION................................................................................................................................................8 4.7STATEMENTOFTHEMEASUREMENTUNCERTAINTY....................................................................................................9 4.8TESTLOCATION........................................................................................................................................................10 4.9TESTFACILITY..........................................................................................................................................................10 4.10DEVIATIONFROMSTANDARDS................................................................................................................................10 4.11OTHERINFORMATIONREQUESTEDBYTHECUSTOMER..........................................................................................10 4.12EQUIPMENTLIST.....................................................................................................................................................11 5TESTRESULTSANDMEASUREMENTDATA.....................................................................................................12 5.1ANTENNAREQUIREMENT.......................................................................................................................................…

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Setupphotos 1.1RadiatedSpuriousEmission 9kHz~30MHz: 30MHz~1GHz: FCC ID: 2A9OO-UW330B Above1GHz: 1.2ConductedEmissionsTestSetup