2BGYK-LKS028CBluetooth speaker

Product specification Bluetooth /AUX/USB/Type‐C/Multi‐functional Bluetooth speaker touch‐type sofa sound system MOED#: LKS028C Please read the instructions carefully before use Functionintroduction Thankyouforbuyingourlatestgenerationofmulti‐functionalsofa speaker,thisspeaker,usingautomaticfunctionswitchingmode,perfect touchkeysandstrong2.1bassamplifier,perfectsoundqualitywith beautifulappearance,loyalhopetogiveyoulikemusic,bringthe extraordinaryenjoymentofthedigitalage. Mainfunctions： UniversalUSBplaybackfunction:USBinterfacesupportsUdisktoplay musicthroughUSBlink. AUX:Supportsaudioinputfrommobilephones,computers,andTV. Note： Firstofall,thankyouforusingoursofaspeaker!Pleasereadthe productmanualbeforeusetoensurethatyoucanusethisproduct correctly.Inordertobetterservecustomers,productperformance specificationsmaychange,sothecontentofthismanualmayalsobe updatedwithoutpriornotice.Inordertomaintaingoodperformance, donotuseitinanenvironmentthatistoocold,toohot,dusty,orhumid. Therecommendedoperatingtemperatureis‐10°Cto+40°C. Panelfunction 1.PowerOn/Off:Longpressthisbuttonfor3secondstopower on.Inthepowered-onstate,longpressfor3secondsto poweroff. 2.Modekey:Bluetooth/USB/AUXswitchkey. 3.Volume-/PreviousTrack:Wheninplaybackmode,asingle clickwillplaytheprevioustrack,whilealongpresswill decreasethevolume. 4.Volume+/Nexttrack:Wheninplaybackmode,asingleclick willplaythenexttrack,whilealongpresswillincrease thevolume. 5.Play/Pause:Wheninplaymode,asingleclickservesasthe pausebutton,whileasecondclickresumesplayback. 6.USBport:PortforplayingmusicfromaUSBflashdrive. 7.T-Csocket:Type-Ccharginginterface5V2A. 8.AUXsocket:audioinputport. Installationinstruction Instructionsforuse Longpressthepowerswitch,andthebluelightofallbuttonswill illuminate,indicatingthatthedeviceisinthepower-onstate.When poweredon,thedeviceenterstheBluetoothstatebydefault,accompanied byaprompttone.OpentheBluetoothsettingsonyourphone;enterthe searchmode,andthephonewilldisplaytheBluetoothdevicename "LKS028."Thepairingprocesstakesabout30seconds.WhentheBluetooth connectionissuccessful,therewillbea"dingdong"prompttone;click onyourfavoritemusictoplayitonthemusicplaybackinterfaceofyour phone. Thisproductfeaturesaone-to-Ninterconnectionfunction,whichis enabledbydefaultwhenturnedon.Whenmultiplesimilarproductsare withinthesamespaceandwithinastraight-linedistanceofnomorethan 5meters,amobilephonecanconnecttoanyofthedevicesasthehost. Oncethephonesuccessfullyconnectstooneofthedevices,theother deviceswilldefaulttobeingsecondarydevices.Whenplayingmusic,the "BT"symbolonthehostdevice'spanelisflashing,whilethe"BT"symbols ontheothersecondarydevicepanelsareconstantlylit.Underthe interconnectionfunction,onlythehostdevice'spanelcanbeoperated; operationsontheothersecondarydevicepanelshavenoeffect.The interconnectionfunctioninU-diskmodeandAUXmodeisthesameasin Bluetoothmode. USB: WhenaUSBflashdriveisinserted,the"USB"indicatorlightwill illuminate,automaticallyswitchingtoUSBmode.Thedevicewillthen scanformusicfilesandplaythemautomatically. AUX: Insertinga3.5mmaudiocableintotheAUXinterfacewill automaticallyswitchtoAUXmode,andtheAUXindicatorlightwillbe on.Connecttoacomputer,TV,orphonetoplaymusic.Inthismode,you canonlycontrolthevolumeup/downandmuteoftheaudiosourcedevice. Specificationparameter Powerinput:DC12V2A Frequencyresponse:20HZ‐20KHZ SNR:≥60db Maximumdistortiondegree:≤10% Maximumoutputpower:≥20W Hornimpedance:4OhMs Adjustmentform:keycontrolon/off/automaticmodeswitch/volume adjustment/upanddownbendswitch/pauseplay Bluetoothdistance:opendistance≥10meters Bluetoothtransmissionfrequency:2.4G USBfunction:USBdiskmusicplaybackandchargingfunction. Repairguideandtroubleshooting Beforethemachineneedstoberepaired,pleasecheckthe followinganswerstofindthepossiblecauseoftheproblemyou haveencountered.Somesimplechecksorminimaladjustments youhavemademaysolvetheproblemandrestorethenormal operation.Ifyouhavequestionsaboutsomeinspectionpointsor cannotsolvetheproblem,pleaserefertotheprofessional maintenancepersonnelforrepair. TheproblemThesolution iphone/ipodcannotplay iphone/ipodversionistoolow,pleaseplayit manually. Itdoesn'tplayinAndroidmode PleaseconfirmwhetherthephonesupportsOTG function,ortheAndroidversionofthephoneistoo low,pleaseconfirmwhethertheAndroidversionis above4.3。 Nosound Thevolumeissettooloworthespeakerisnot properlyconnected.Ifthereisstillnosoundafter ensuringcorrectoperation,youneedtoreplacethe horn. Failuretoturnon Thepowersupplyisnotpluggedinproperly.Ifit isconfirmedthatthepowersupplyisfaulty,replace theswitchingpowersupply.Ifthereisnoproblem withthepowersupply,theremaybeaproblemwith thecontrolbox. Themachineisnotresponding Pleasepoweroffandtryagain.Checkwhetherthe iphone/ipod/Androidphone/USBisproperly connected. Thekeydoesn'twork Pleasedon'tpresshard.Pleasecheckwhetherthere isforeignbodyorwater,pleaserestartthemachine. Bluetoothcannotbepaired PleaseturnoffallotherBluetoothdevicesthathave beenpaired,restartthemachineanddeviceand search.Pleaseensurethatthestereoislocated within10metersofthemobilephoneandthereare noobstaclestouse. FCCSTATEMENT 1.ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothe followingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)Thisdevicemustacceptanyinterferencereceived,includinginterferencethat maycauseundesiredoperation. 2.Changesormodificationsnotexpresslyapprovedbythepartyresponsiblefor compliancecouldvoidtheuser'sauthoritytooperatetheequipment. NOTE:Thisequipmenthasbeentestedandfoundtocomplywiththelimitsfora ClassBdigitaldevice,pursuanttoPart15oftheFCCRules.Theselimitsaredesigned toprovidereasonableprotectionagainstharmfulinterferenceinaresidential installation. Thisequipmentgenerates,usesandcanradiateradiofrequencyenergyand,ifnot installedandusedinaccordancewiththeinstructions,maycauseharmful interferencetoradiocommunications.However,thereisnoguaranteethat interferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescause harmfulinterferencetoradioortelevisionreception,whichcanbedeterminedby …

Text truncated - open the document above for the full version.

DongGuanCityLuckkingElectronicsCo.,Ltd CoveredEquipmentCertificationAttestationLetter 12/25/2025 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA ATTN.:ReviewingEngineer FCCID:2BGYK-LKS028C DongGuanCityLuckkingElectronicsCo.,Ltd(“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtisnot“covered”equipmentprohibitedfrom receivinganequipmentauthorizationpursuanttosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. DongGuanCityLuckkingElectronicsCo.,Ltd(“theapplicant”)certifiesthat,asofthe dateofthefilingoftheapplication,theapplicantisnotidentifiedontheCoveredList(as aspecificallynamedentityoranyofitssubsidiariesoraffiliates)asanentityproducing “covered”equipment. DongGuanCityLuckkingElectronicsCo.,Ltd(“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtdoesnotincludecybersecurityoranti-virus softwareproducedorprovidedbyKasperskyLab,Inc.oranyofitssuccessorsand assignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyofits successorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886 andKDB986446D01CoveredEquipmentGuidancesectionB(2a). Signed: Printedname:SONNYGUAN Title:Manager CompanyName:DongGuanCityLuckkingElectronicsCo.,Ltd Date:12/25/2025

DongGuanCityLuckkingElectronicsCo.,Ltd * theapplicantmustdesignateacontactlocatedintheUnitedStatesforpurposesofactingasthe applicant’sagentforserviceofprocess,regardlessofwhethertheapplicantisadomesticorforeign entity.AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforserviceofprocess. SC6012055 U.S.AgentDesignationforServiceofProcess- CertificationAttestationLetter 12/25/2025 TO:FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 ATTN.:ReviewingEngineer FCCID:2BGYK-LKS028C FRNofapplicant:0035553072 Persection2.911(d)(7)oftheFCCrules,[DongGuanCityLuckkingElectronicsCo.,Ltd FRN:0035553072](“theapplicant”)certifiesthattheequipmentforwhichauthorizationissought isdesignatedtothefollowingU.S.agent*forserviceofprocess: CompanyName:GlobalProductServicesandConsultationLLC FCCRegistrationNumber(FRN):0033406703 PhysicalU.S.CompanyAddress:328WPalmAve.Monrovia,CA91016 ContactPerson:MichaelChan Tel:+16263664358 AgentEmailAddress:[email protected] Theabovecontactpersonacceptstheobligationforserviceofprocess. Theapplicantacceptstomaintainanagentfornolessthanoneyearafterthegranteehas terminatedallmarketingandimportationortheconclusionofanyCommission-related proceedinginvolvingtheequipment. ApplicantSigned:AgentSigned(ifdifferentfromApplicant): Signed: Printedname:SONNYGUAN Title:Manager CompanyName:DongGuanCityLuckking ElectronicsCo.,Ltd Signed: Printedname:MichaelChan Title:TechnicalDirector CompanyName:GlobalProductServicesand ConsultationLLC Date:1/23/2026 Date:12/25/2025

DongGuanCityLuckkingElectronicsCo.,Ltd DATE:December25,2025 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 AuthoritytoActasAgent Onourbehalf,IappointCTSLTesting(Dongguan)Co.,Ltd.(Building1,HoujieRoad, HoujieTown,GuangdongProvinceDongguanCity,China)toactasouragentinthe preparationofthisapplicationforequipmentcertification.Icertifythatsubmitted documentsproperlydescribethedeviceorsystemforwhichequipmentcertificationis sought.Ialsocertifythateachunitmanufactured,importedormarketed,asdefinedinthe FederalCommunicationsCommission’sregulationswillhaveaffixedtoitalabelidentical tothatsubmittedforapprovalwiththisapplication. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonour behalf,Iacknowledgethatallresponsibilityforcomplyingwiththetermsandconditions forcertification,stillresideswithDongGuanCityLuckkingElectronicsCo.,Ltd (Building1,No.3,QinghutouInnovationRoadTangxiaTown,DongguanCity, GuangdongChina) <Signature> Name:SONNYGUAN Title:Manager ApplicantCompany:DongGuanCityLuckkingElectronicsCo.,Ltd

Date:December25,2026 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeComplianceTesting,LLCtoactonourbehalfinallmatters relatingtoapplicationforequipmentauthorization,includingthesigningofalldocumentsrelatingto thesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothedenialof benefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988,21 U.S.C.853(a). Sincerely, <Signature> Name:SONNYGUAN Title:Manager Company:DongGuanCityLuckkingElectronicsCo.,Ltd

DATE:December25,2025 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2BGYK-LKS028C ProductName:Bluetoothspeaker RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommission’srules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: (Listherethedocumentsforwhichyouareseekingconfidentiality–forexample...)  Schematics Blockdiagram Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. <Signature> Name:SONNYGUAN Title:Manager Company:DongGuanCityLuckkingElectronicsCo.,Ltd

Page1of4 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER AnnexA. EUTExternalPhotos FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com AnnexA. EUTExternalPhotos Photo1ExternalphotosofEUT Model:Model:LKS028C Photo2ExternalphotosofEUT Model:LKS028C Page2of4 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER AnnexA. EUTExternalPhotos FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com Photo3ExternalphotosofEUT Model:LKS028C Photo4ExternalphotosofEUT Model:LKS028C Page3of4 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER AnnexA. EUTExternalPhotos FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com Photo5ExternalphotosofEUT Model:LKS028C Photo6ExternalphotosofEUT Model:LKS028C Page4of4 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER AnnexA. EUTExternalPhotos FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com Photo7ExternalphotosofEUT Model:LKS028C (Thepanelcomesintwocolors:blackandsilver.) Photo8ExternalphotosofEUT Connectionport ------------------------------------------EndofEUTExternalPhotos------------------------------------------

FCCIDLabelingandLocation Thelabelshownshallbepermanentlyaffixedataconspicuouslocationonthedeviceandbe readilyvisibletotheuseratthetimepurchase(Labelingrequirementsper2.925) FCCIDLabel Size:25mm*15mm

Page1of5 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER AnnexB. EUTInternalPhotos FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com AnnexB. EUTInternalPhotos Photo1InternalphotosofEUT Model:LKS028C Photo2InternalphotosofEUT Model:LKS028C Page2of5 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER AnnexB. EUTInternalPhotos FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com Photo3InternalphotosofEUT Model:LKS028C Photo4InternalphotosofEUT Model:LKS028C Antennaposition Page3of5 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER AnnexB. EUTInternalPhotos FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com Photo5InternalphotosofEUT Model:LKS028C Photo6InternalphotosofEUT Model:LKS028C Page4of5 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER AnnexB. EUTInternalPhotos FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com Photo7InternalphotosofEUT Model:LKS028C Photo8InternalphotosofEUT Model:LKS028C Page5of5 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER AnnexB. EUTInternalPhotos FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com Photo9InternalphotosofEUT Model:LKS028C ------------------------------------------EndofEUTInternalPhotos------------------------------------------

Page1of4 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER RFExposure Evaluation FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com RFExposureEvaluation 1.RFEXPOSUREEVALUATIONMETHOD AccordingtoKDB447498D01GeneralRFExposureGuidancev06,unlessspecifically requiredbythepublishedRFexposureKDBprocedures,standalone1-gheadorbodyand 10-gextremitySARevaluationforgeneralpopulationexposureconditions,bymeasurementor numericalsimulation,isnotrequiredwhenthecorrespondingSARTestExclusionThreshold condition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)] ≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeusedto evaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF)Radiation asspecifiedin§1.1307(b) EUTSpecification EUTPortableMobileSpeaker Frequencyband (Operating) WLAN:2.412GHz~2.462GHz WLAN:5.150GHz~5.250GHz WLAN:5.725GHz~5.850GHz OthersBT:2402-2480MHz DevicecategoryPortable(<20cmseparation) Mobile(>20cmseparation) Others ExposureclassificationOccupational/Controlledexposure(S=5mW/cm2) GeneralPopulation/Uncontrolledexposure(S=1mW/cm2) AntennadiversitySingleantenna Multipleantennas Txdiversity Rxdiversity Tx/Rxdiversity Max.outputpower2.69dBm(0.00186W) Antennagain(Max)-0.68dBi EvaluationappliedMPEEvaluation SAREvaluation Page2of4 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER RFExposure Evaluation FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com 2.SARTestExclusionThresholdsfor100MHz–6GHzand≤50 mm ApproximateSARTestExclusionPowerThresholdsatSelectedFrequenciesandTest SeparationDistancesareillustratedinthefollowingTable. The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50 mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtest exclusion. Page3of4 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER RFExposure Evaluation FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com 3.ConductedPowerResult Maximummeasuredtransmitterpower: BT(BR+EDR) Mode Frequency Measured Peakoutput power Measured Peakoutput power Target power Antennagain (MHz)(dBm)(mW)(dBm)(dBi)(Linear) GFSK 24021.201.321±1-0.680.8551 24411.691.481±1-0.680.8551 24801.311.351±1-0.680.8551 π/4-DQPSK 24021.951.571±1-0.680.8551 24412.381.732±1-0.680.8551 24802.041.602±1-0.680.8551 8-DPSK 24022.241.672±1-0.680.8551 24412.691.862±1-0.680.8551 24802.421.752±1-0.680.8551 Page4of4 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER RFExposure Evaluation FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com 4.CalculatedResultandLimit BT(BR+EDR) Frequency Max Tune-up Power Max Tune-up Power min.test separation distance [√f(GHz)]ResultLimit (MHz)(dBm)(mW)(mm) 240231.995351.5500.61853 244131.995351.5620.62353 248031.995351.5750.62843 Remark: The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattest separationdistances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]x[√f(GHz)] ThetestResultislessthan3.0for1-gSARand≤7.5for10-gextremitySAR. Conclusion:So,SARtestisnotrequired --------------------------------------EndofRFExposureEvaluation--------------------------------------

Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT Horizontal Vertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.73 -0.84 -0.68 -6.15 -3.70 -2.32 MAX. Gain -0.68 Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 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.

Page1of71 FCCPART15SUBPARTC FCCPART15.247 TESTREPORT FCCID:2BGYK-LKS028C ReportNo:CTSL2521220052ER ProductName:Bluetoothspeaker MainTestModel:LKS028C SeriesModels:- Applicant:DongGuanCityLuckkingElectronicsCo.,Ltd EXECUTIVESUMMARY Asampleofthisproductwastestedandfoundtobeincompliancewith FCCPART15C,FCCPART15SUBPARTC(15.247). Anyreproductionofthisdocumentmustbedoneinfull.Nosinglepartofthisdocumentmay bereproducedwithoutpermissionfromCTSL.AllTestDataPresentedinthisreportisonly applicabletopresentedTestsample. CTSLTesting(Dongguan)Co.,Ltd. Maincompanyaddress:Building1,HoujieRoad,HoujieTown,GuangdongProvince DongguanCity,China Page2of71 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com TestReport FCCID:2BGYK-LKS028C Applicant Name DongGuanCityLuckkingElectronicsCo.,Ltd Applicant Address Building1,No.3,QinghutouInnovationRoadTangxiaTown,DongguanCity, GuangdongChina Manufacturer Name DongGuanCityLuckkingElectronicsCo.,Ltd Manufacturer Address Building1,No.3,QinghutouInnovationRoadTangxiaTown,DongguanCity, GuangdongChina TradeMarkLUCKKING ProductnameBluetoothspeaker MainTest Model LKS028C SeriesModels- Standard FCCPart15SubpartC(15.247) ANSIC63.10:2020 FCCKDB558074D0115.247MeasGuidancev05r02 TestLocation ISO/IEC17025byILAC-MRAisA2LA7556.01 CTSLTesting(Dongguan)Co.,Ltd. Room112,Building1,No.15,JiaoyuansongshanHetianVillage,HoujieTown DongguanCity,Guangdong,People’sRepublicofChina ReceiptDate2025.12.25Testperiod2025.12.25-2026.01.18IssueDate2026.01.21 Conclusion Theequipmentundertestwasfoundtobecompliancewiththe requirementsofthestandardsapplied. Performs Testing: EthanZhao (Specialseal) TestReport Reviewer: SteveQin TestReport Authorizer: AlanLi Page3of71 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com TABLEOFCONTENTS DescriptionPage TESTREPORTVERIFICATION......................................................................................................................3 1.GENERALINFORMATION..................................................................................................................5 1.1.GeneralDescriptionofEUT(EquipmentUnderTest).................................................................5 1.2.AntennaInformation.........................................................................................................................6 1.3.InformationofRFCable...................................................................................................................6 2.SUMMARYOFTEST..........................................................................................................................7 2.1.TestStandards..................................................................................................................................7 2.2.Summaryoftestresult.....................................................................................................................7 2.3.TestFacilities.....................................................................................................................................8 2.4.Measurementuncertainty................................................................................................................8 2.5.BlockDiagram...................................................................................................................................9 2.6.Assistantequipmentusedfortest..................................................................................................9 2.7.Testmode........................................................................................................................................10 2.8.ChannelList.....................................................................................................................................11 2.9.PowerSettingofTestSoftware....................................................................................................11 2.10.TestEquipment.............................................................................................................................12 3.MAXIMUMPEAKOUTPUTPOWER.................................................................................................14 3.1.Limit...................................................................................................................................................14 3.2.TestSetup........................................................................................................................................14 3.3.SpectrumAnalyzerSetting............................................................................................................14 3.4.TestProcedure................................................................................................................................14 3.5.TestResult.......................................................................................................................................15 3.6.OriginalTestRecord.......................................................................................................................16 4.20DBBANDWIDTH.........................................................................................................................18 4.1.Limit...................................................................................................................................................18 4.2.TestSetup........................................................................................................................................18 4.3.SpectrumAnalyzerSetting............................................................................................................18 4.4.TestProcedure..................…

Text truncated - open the document above for the full version.

Page1of2 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER AnnexC. TestSetupPhotos FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com AnnexC. TestSetupPhotos Photo1TestSetupPhotosofRadiatedEmissionTest(30-1000MHz) Photo2TestSetupPhotosofRadiatedEmissionTest(Above1GHz) Page2of2 CTSLTesting(Dongguan)Co.,Ltd. ReportNo.:CTSL2521220052ER AnnexC. TestSetupPhotos FCCID:2BGYK-LKS028C Room112,Building1,No.15,Jiaoyuansongshan,HetianVilltage,HoujieTown,DongguanCity,Guangdong,China. Tel:0769-86009597E-mail:[email protected]://www.ctsl-lab.com Photo3TestSetupPhotosofConnectEUTAntennaTerminalTest Photo4TestSetupPhotosofACPowerLineConductedEmissions ------------------------------------------EndofTestSetupPhotos------------------------------------------