2BB5V-CS-3303speaker

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. Warning: changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment The devices has been evaluated to meet general RF exposure requirement the device can be used in portable exposure condition without restriction

1/1 USAgentforServiceofProcessLETTEROFATTESTATION TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USAgentforServiceofProcess: CompanyName:AOCECorporation FRN:0033401381 ContactName:Johnson.wang Address:6547NAcademyBivd#2266,ColoradoSprings,CO,80918UnitedStates Telephone:+1-346-582-5234 Email:[email protected] Applicant: Companyname:GUANGZHOUKEMIAUDIOEQUIPMENTCO.,LTD ProductDescription:speaker Granteecode:2BB5V FCCID:2BB5V-CS-3303 ContactName:chenyuanqin Address:Building2,No.86ChentaiRoad,TaiheTown,BaiyunDistrict,GuangzhouCity Email:[email protected] [GUANGZHOUKEMIAUDIOEQUIPMENTCO.,LTD]certifiesthat,asofthedate ofthisfilingoftheapplicationwiththeTCB,[AOCECorporation]isour designatedUSagentforserviceofprocessfortheabovereferencedFCCID. [GUANGZHOUKEMIAUDIOEQUIPMENTCO.,LTD]acceptstomaintainanagent fornolessthanoneyearafterthegranteehasterminatedallmarketingand importationortheconclusionofanycommissionrelatedproceedinginvolving equipment.[AOCECorporation]accepts,asofthedateofthefilingofthe application,theobligationofthedesignatedUSagentforserviceofprocessfor theabovereferenceFCCID. TheUSAgentforServiceofProcessisawareofandagreestocomplywiththerequirements outlinedintheFCCEquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause §2.911. TheApplicantisawareofandagreestocomplywiththerequirementsoutlinedintheFCC EquipmentAuthorizationProgram,ReportandOrderFCC22-84,andclause§2.911. Date:07/19/2023 Applicant’sName:chenyuanqinUSAgent’sName: Title:ManagerTitle:Manager Signature Signature

C5266091_X24_Ed.2 1/1 GUANGZHOU KEMI AUDIO EQUIPMENT CO.,LTD “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: GUANGZHOU KEMI AUDIO EQUIPMENT CO.,LTD Grantee code: 2BB5V FCC ID: 2BB5V-CS-3303 Contact Name: chen yuan qin Address: Building 2, No.86 Chentai Road, Taihe Town, Baiyun District, Guangzhou City Telephone No: 13714103214 Fax No: Email: [email protected] i. [GUANGZHOU KEMI AUDIO EQUIPMENT CO.,LTD] (“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. The applicant must sign this certification. ii. [GUANGZHOU KEMI AUDIO EQUIPMENT CO.,LTD] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. [GUANGZHOU KEMI AUDIO EQUIPMENT CO.,LTD] (“the applicant”) certifies 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 . Date: 2023/07/19 Applicant’s Name: chen yuan qin Title: Manager Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

Modeldifferencedeclarationletter DifferencesDescription FCCID：2BB5V-CS-3303 WeGUANGZHOUKEMIAUDIOEQUIPMENTCO.,LTDstate: Product： speaker ModelName ： CS-3303,CS-0201,CS-0301,CS-0300,CS-0302, CS-0303,CS-0304,CS-0305,CS-0307,CS-0309, CS-3304,CS-3305,CS-3306,CS-3307,CS-3308, CS-0803,CS-0804,CS-0805,CS-8801,CS-8802, We(GUANGZHOUKEMIAUDIOEQUIPMENTCO.,LTD)herebystatethatallthemodels areelectricalidenticalincludingthesamesoftwareparameterandhardwaredesign(i.e., circuitdesign,PCBLayout,RFmodule/circuit,antennatype(s)andantennalocation, componentsonPCB,etc.,),samemechanicalstructureanddesign(includingproduct enclosure,materials,etc.,),theonlydifferenceisthemodelnameandappearancecolor. Signatory Date:07-19.2023 Name:chenyuanqinDate:July19.2023 Title:Manager Signatureofapplicant:

C5266091_X8_Ed.1 1/1 Letter of Authorization GUANGZHOU KEMI AUDIO EQUIPMENT CO.,LTD Company: GUANGZHOU KEMI AUDIO EQUIPMENT CO.,LTD Address: Building 2, No.86 Chentai Road, Taihe Town, Baiyun District, Guangzhou City Product Name: speaker Model Number: CS-3303, CS-0201, CS-0301, CS-0300, CS-0302, CS- 0303, CS-0304, CS-0305, CS-0307, CS-0309, CS-3304, CS-3305, CS-3306, CS-3307,CS-3308,CS-0803, CS-0804, CS-0805, CS-8801, CS-8802, FCC Identifier: 2BB5V-CS-3303 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: chen yuan qin Date: 2023.07.19 Title: Manager Signature of applicant:

C5266091_X10_Ed.2 1/1 GUANGZHOU KEMI AUDIO EQUIPMENT CO.,LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023.07.19 Subject: Request for Confidentiality FCC ID: 2BB5V-CS-3303 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☐ Internal Photos ☐ NOTE 1 ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ______ days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name: chen yuan qin Title: Manager 2023.07.19

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LabelandLabelLocation FCCID:2BB5V-CS-3303

Page1of4ReportNo.:FCS202307126 Internalphotos Photo1 Photo2 Page2of4ReportNo.:FCS202307126 Photo3 Photo4 Page3of4ReportNo.:FCS202307126 Photo5 Photo6 Page4of4ReportNo.:FCS202307126 Photo7 PCBANT

FCCRFExposure EUTDescription:speaker ModelNo.:CS-3303 FCCID:2BB5V-CS-3303 Equipmenttype:PortableDevice 1.TestProcedure AccordingtoKDB447498D01GeneralRFExposureGuidancev06 The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattest separationdistances ≤ 50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/ (min.testseparationdistance,mm)] · [ √ f(GHz)] ≤ 3.0for1-gSARand ≤ 7.5for10-g extremitySAR, where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbefore calculationTheresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparation distanceis≤50mmandfortransmissionfrequenciesbetween100MHzand6GHz. Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmisappliedto determineSARtestexclusion. 2.TestResultofRFExposureEvaluation [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=2.4154/5*√2.402=0.7486≤3.0ThresholdatwhichnoSARrequiredis and≤3.0for1-gSAR,Separationdistanceis5mm. Mode Channel Freq.(MHz) Maximum Conducted Output Power(PK) AntennaGain (dBi) Antenna gainnumeric Maxtune- uppower (W) GFSK 2402 3.83 1.71.480.0024154 2440 3.78 1.71.480.0023878 2480 3.75 1.71.480.0023713

Product specification Quick Reference Date All the technical data and information contained herein are subject to change without prior notice Antenna Layout & module on the system board Antenna Gain Gain Table Antenna module on the system board Frequency 2.45GHz *1 Ant. Port Input Pwr. (dBm) 0 (Typ. BT class 2 output power) Tot. Rad. Pwr. (dBm) -2.3 (Input pwr – loss pwr) Peak EIRP(dBm) 1.7 Directivity (dBi) 1 (all direction antenna) Efficiency (dB) -2.3 (58.5%) Gain (dBi) 1.3 (Peak Gain XY-plane) Maximum Power (dBm) 1.3 (XY-plane) Minimum Power (dBm) -4(XY-plane) Avg. Power (dBm) -0.5(XY-plane) Max/Min Ratio (dB) 5.3(XY-plane) Max/Avg Ratio (dB) 1.8(XY-plane) Min/Avg Ratio (dB) -3.5(XY-plane) Average Gain (dB) -0.5 (Avg Gain XY-plane) Unit in dBi @2.44GHz XY-plane XZ-plane YZ-plane Efficiency Peak Avg. Peak Avg. Peak Avg. Module Board 1.3 -0.5 1.7 -3.8 1.1 -3.0 58.5% Return Loss The Environment of Antenna Radiation Pattern 3D radiation pattern diagram XY-plane XZ-plane YZ-plane

1 FCCTestReport ReportNo:FCS202307126W01 Issuedfor Applicant:GUANGZHOUKEMIAUDIOEQUIPMENTCO.,LTD Address: Building2,No.86ChentaiRoad,TaiheTown,Baiyun District,GuangzhouCity ProductName:speaker BrandName: ModelName:CS-3303 SeriesModel: CS-0201,CS-0301,CS-0300,CS-0302,CS-0303, CS-0304,CS-0305,CS-0307,CS-0309,CS-3304, CS-3305,CS-3306,CS-3307,CS-3308,CS-0803, CS-0804,CS-0805,CS-8801,CS-8802, FCCID: 2BB5V-CS-3303 IssuedBy:FluxComplianceServiceLaboratory Add:Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-Tech Industrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.FCS-lab.com Page 2 of43ReportNo.:FCS202307126W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,Song shanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.FCS-lab.com 2 TESTRESULTCERTIFICATION Applicant’sName......................: GUANGZHOUKEMIAUDIOEQUIPMENTCO.,LTD Address......................................: Building2,No.86ChentaiRoad,TaiheTown,Baiyun District,GuangzhouCity Manufacture'sName................: GUANGZHOUKEMIAUDIOEQUIPMENTCO.,LTD Address......................................: Building2,No.86ChentaiRoad,TaiheTown,Baiyun District,GuangzhouCity ProductDescription ProductName...........................: speaker BrandName...............................: ModelName .............................. : CS-3303 SeriesModel .............................. : Refertopage1ofthereport TestStandards .......................... :FCCRulesandRegulationsPart15SubpartC,Section247 TestProcedure .......................... :ANSIC63.10:2013 ThisdevicedescribedabovehasbeentestedbyFluxComplianceServiceLaboratory,thetestresults showthattheequipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditis applicableonlytothetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofFluxCompliance ServiceLaboratory,thisdocumentmaybealteredorrevisedbyFluxComplianceServiceLaboratory, personalonly,andshallbenotedintherevisionofthedocument.. DateofTest..................................: Date(s)ofperformanceoftests . :July14,2023~July18,2023 DateofIssue ................................. :July18,2023 TestResult....................................:Pass Testedby: (ScottShen) Reviewedby : (DukeQian) Approvedby: (JackWang) Page 3 of43ReportNo.:FCS202307126W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,Song shanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.FCS-lab.com 3 TableofContentsPage 1.SUMMARYOFTESTRESULTS..............................................................................................6 1.1TESTFACTORY................................................................................................................7 1.2MEASUREMENTUNCERTAINTY....................................................................................7 2.GENERALINFORMATION......................................................................................................8 2.1GENERALDESCRIPTIONOFTHEEUT.........................................................................8 2.2BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED.............10 2.3DESCRIPTIONOFNECESSARYACCESSORIESANDSUPPORTUNITS................11 2.4EQUIPMENTSLIST.........................................................................................................12 3CONDUCTEDEMISSIONMEASUREMENT..........................................................................13 4.20DBBANDWIDTH...............................................................................................................17 4.1Limit..................................................................................................................................17 4.2TestProcedure.................................................................................................................17 4.3Testsetup.........................................................................................................................17 4.4Testresults.......................................................................................................................17 4.5OriginalTestData............................................................................................................18 5.CONDUCTEDOUTPUTPOWER...........................................................................................19 5.1LIMIT................................................................................................................................19 5.3TESTSETUP...................................................................................................................19 5.5TESTRESULTS..............................................................................................................19 6NUMBEROFHOPPINGCHANNEL.......................................................................................20 6.1LIMIT................................................................................................................................20 6.2TESTPROCEDURE........................................................................................................20 5.3TESTSETUP...................................................................................................................20 6.4EUTOPERATIONCONDITIONS....................................................................................20 6.5TESTRESULTS..............................................................................................................21 7.BANDEDGEANDSPURIOUS(CONDUCTED)....................................................................22 7.1LIMIT................................................................................................................................22 7.2TESTPROCEDURE........................................................................................................22 7.3TESTSETUP......................................…

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