2BT5V-G01Beauty Device

GSDCo.,Ltd. [39165]17,CheomdanGieop7-ro,Sandong-eup,Gumi-si,Gyeongbuk,Korea AttestationStatements NotCoveredEntityApplicant&NotCoveredEquipment To:FederalCommunicationsCommissionDate:Jan.26,26 7435OaklandMillsRoad, Columbia,MD21046,USA Ref:InformationRequiredbySection2.911(d)(5)(i)&(ii) FCCID:2BT5V-G01 GSDCo.,Ltd.(“theapplicant”)certifiesthat,asofthedateofthefilingoftheapplication,theapplicantis notidentifiedontheCoveredList,establishedpursuantto§1.50002ofreferencechapter,asanentity producing“covered”communicationequipment.Theequipmentforwhichauthorizationissoughtisnot “covered”telecommunicationsequipmentandvideosurveillanceequipmentproducedbyentities identifiedontheCommission’sCoveredListthatprohibitedfromreceivinganequipmentauthorization pursuanttosection§2.903oftheFCCrules. Sincerelyyours, ApplicantSignature PrintedName:Haeng-moYang Title:Director Address:(39165)17,CheomdanGieop7-ro,Sandong-eup,Gumi-si,Gyeongbuk Tel.:82-10-9368-0806 Email:[email protected]

GSDCo.,Ltd. [39165]17,CheomdanGieop7-ro,Sandong-eup,Gumi-si,Gyeongbuk,Korea 1|Page AttestationStatements To:FederalCommunicationsCommissionDate:Jan.26,26 7435OaklandMillsRoad, Columbia,MD21046,USA Subject:AttestationofCompliancewithFCCCoveredListSoftwareRequirements FCCID:[2BT5V-G01] ProductName:[G01PRIME:ONBeautyDevice] Thisletterservesasanattestationthattheequipmentidentifiedabove☐is/☒isnot(selectone)"covered" softwareasdefinedundertheFederalCommunicationsCommission(FCC)CoveredListrequirements,as outlinedinFCC22-84andKDB986446. Specifically,theundersignedcertifiesthattheequipmentforwhichauthorizationissought: 1.Doesnotcontaincybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab, Inc.oranyofitssuccessors,assignees,parents,subsidiaries,affiliates,oranyentitythathasrebranded orrelabeledsoftwareproducedbytheaforementionedentities. 2.Doesnothavethecapabilitytostore,run,ordeliveranysoftwareidentifiedontheFCCCoveredList, includingbutnotlimitedtocybersecurityandanti-virussoftware. Tosupportthisattestation,theappendixevaluationdocumentationhasbeenpreparedandisincludedinthe certificationfiling. Thisattestationisbasedonathoroughevaluationofthedevice'sdesign,functionality,andsoftware environment.Theundersignedaffirmsthattheinformationprovidedisaccurateandcompletetothebestof theirknowledge. Sincerelyyours, ApplicantSignature PrintedName:Haeng-moYang Title:Director Address:(39165)17,CheomdanGieop7-ro,Sandong-eup,Gumi-si,Gyeongbuk Tel.:82-10-9368-0806 Email:[email protected] GSDCo.,Ltd. [39165]17,CheomdanGieop7-ro,Sandong-eup,Gumi-si,Gyeongbuk,Korea 2|Page EvaluationregardingtotheCoveredListSoftware: Compliance Methodology EvaluationProcessResults Deviceis Inherent compliance ☒ TheChipset(s)usedislimitedtorun theCybersecurityoranti-virus software. Compliance ☒ TheMemoryusedislimitedtorunthe Cybersecurityoranti-virussoftware. Compliance. ☒ Thereisstoragecapacitylimitationfor storeorinstalltheCybersecurityor anti-virussoftware. Compliance ☒ Operatingsystemusedislimitedto run,installordelivertheCybersecurity oranti-virussoftware. Compliance Deviceisnot Inherent compliance ☐ EvaluationBasedonSoftware BillofMaterials(SBoM) Seeattached“SBoM“ Note:TheSBoMcontentislimited tothescopeofcoveredlist software(e.g.antivirusand cybersecuritysoftware). ☐ EvaluationBasedonScanfor Softwareonthedevice ☐ EvaluationBasedonFilesystemscan ☐ EvaluationBasedonRunning softwarecheck

GSDCo.,Ltd. [39165]17,CheomdanGieop7-ro,Sandong-eup,Gumi-si,Gyeongbuk,Korea U.S.AgentLetterofAttestation To:FederalCommunicationsCommission 7435OaklandMillsRoad,Columbia,MD21046,USA Date:Jan.26,26 Ref:AttestationStatement–Part2.911(d)(7)filing FCCID:[2BT5V-G01] [GSDCo.,Ltd.](“theapplicant”)certifiesthat,asofthedateofthefilingoftheapplication,HOPEK CORPORATIONINC(“theagent”)isourdesignatedU.S.agentforserviceofprocessfortheabove referenceFCCID.TheapplicantacceptstomaintainanagentforserviceofprocessintheUnited Statesfornolessthanoneyearaftereitherthegranteehaspermanentlyterminatedallmarketing andimportationoftheapplicableequipmentwithintheU.S.,ortheconclusionofanyCommission- relatedadministrativeorjudicialproceedinginvolvingtheequipment,whicheverislater.The applicantfurtheracknowledgesitisourresponsibilitytoinformtheFCCwhenevertheagent informationchanges. HOPEKCORPORATIONINC("theagent)understanditistheagent'sobligationtoacceptservice ofprocessintheUnitedStatesformattersrelatedtotheapplicableequipment,andatthephysical U.S.addressandemailaddress. DesignatedU.S.Agent CompanyName:HOPEKCORPORATIONINC FRN:0034562900 Address:16755CoyoteBushDrUnit84,SanDiego, CA92127UnitedStates Signature: ContactPerson:PeterDavis Tel:561-235-6113Email:[email protected] Applicant CompanyName:GSDCo.,Ltd. FRN:0037840014 Address:(39165)17,CheomdanGieop7-ro,Sandong- eup,Gumi-si,Gyeongbuk Signature: ContactPerson:Haeng-moYang Tel:82-10-9368-0806Email:[email protected]

GSDCo.,Ltd. [39165]17,CheomdanGieop7-ro,Sandong-eup,Gumi-si,Gyeongbuk, Korea (Jan20,2026) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:ConfidentialityRequestfor:FCCID:2BT5V-G01 PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestpermanent confidentialtreatmentoftheexhibitsaccompanyingthiscertificationapplicationasoutlinedbelow:  BlockDiagram Schematics  OperationalDescription (Etc.) Theaboveexhibitscontaintradesecretsand/orproprietaryinformationthatarenotpubliclyavailableand materialsthattheApplicanthasspentconsiderableeffortsindeveloping.Publicdisclosureofthesemay beharmfultotheApplicantandgiveanunfairadvantagetocompetitorsonthemarket. PursuanttoDA04-1705,theapplicantalsorequeststemporaryconfidentialtreatmentoftheexhibits outlinedbelowforaperiodof(upto180)daysfromthedateofequipmentauthorizationandpriorto marketingintheUnitedStatestopreventtheprematurereleaseofanysensitiveinformation.Applicantis awareoftheirresponsibilitytonotifyDERYCOMintheeventinformationregardingtheproductorthe productismadeavailabletothepublicbeforetherequestedperiodhasexpired.  UserManual  InternalPhotos  TestSetupPhotos  (Etc.) Sincerely, Title:Director Address:(39165)17,CheomdanGieop7-ro,Sandong-eup,Gumi-si,Gyeongbuk Tel.:82-10-9368-0806 Email:[email protected]

GSD Co., Ltd. [39165] 17, Cheomdan Gieop 7-ro, Sandong-eup, Gumi-si, Gyeongbuk, Korea (Jan 20, 2026) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID:2BT5V-G01 I, the undersigned, hereby authorize Shenzhen BKC Testing Co., Ltd. to act on our behalf in all matters relating to this application for equipment certification. Any act carried out by Shenzhen BKC Testing Co., Ltd.shall have the same effect as our own and I acknowledge that all responsibility for complying with the terms and conditions of certification, as specified by DERYCOM CERTIFICATION SERVICES, INC., still resides with GSD Co., Ltd.. We certify that we are not subject to a denial of federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862, and that no party to the application, as defined in 47 CFR §1.2002(b), is subject to a denial of federal benefits that includes FCC benefits pursuant to that section. Sincerely, Haeng-moYang Director Tel: 82-10-9368-0806 Fa x:82-54-461-7190 Email: [email protected]

FCCID:2BT5V-G01 Photo1 Photo2 FCCID:2BT5V-G01 Photo3 Photo4 FCCID:2BT5V-G01 Photo5 Photo6 FCCID:2BT5V-G01 Photo7 Photo8

FCCID:2BT5V-G01 Label Size:10mm*8mm FCCID:2BT5V-G01 LabelLocation

RFExposureevaluation FCCID2BT5V-G01 ProductNameG01PRIME:ONBeautyDevice ModelNo.G01PRIME:ON ListedModel(s)N/A 1.Reference ANSIC95.1–1999:IEEEStandardforSafetyLevelswithRespecttoHumanExposureto RadioFrequencyElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortable DevicesRFExposureProceduresandEquipmentAuthorizationPolicies. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1093:Radiofrequencyradiationexposureevaluation:portabledevices 2.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1Standalone SARtestexclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposure KDBprocedures,standalone1-gheadorbodyand10-gextremitySARevaluationforgeneral populationexposureconditions,bymeasurementornumericalsimulation,isnotrequired whenthecorrespondingSARTestExclusionThresholdcondition,listedbelow,issatisfied. Thesetestexclusionconditionsarebasedonsource-basedtime-averagedmaximum conductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-uptolerance, andtheminimumtestseparationdistancerequiredfortheexposureconditions.22The minimumtestseparationdistanceisdeterminedbythesmallestdistancefromtheantenna andradiatingstructuresoroutersurfaceofthedevice,accordingtothehostformfactor, exposureconditionsandplatformrequirements,toanypartofthebodyorextremityofauser orbystander(see5)ofsection4.1).ToqualifyforSARtestexclusion,thetestseparation distancesappliedmustbefullyexplainedandjustifiedbytheoperatingconfigurationsand exposureconditionsofthetransmitterandapplicablehostplatformrequirements,typicallyin theSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRF exposureKDBprocedures.WhennootherRFexposuretestingorreportingisrequired,a statementofjustificationandcompliancemustbeincludedintheequipmentapproval,inlieuof theSARreport,toqualifyfortheSARtestexclusion.Whenrequired,thedevicespecific conditionsdescribedintheotherpublishedRFexposureKDBproceduresmustbesatisfied beforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTTtwo-way radios,handsets,laptops&tabletsetc.23” [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where: •f(GHz)istheRFchanneltransmitfrequencyinGHz •PoweranddistanceareroundedtothenearestmWandmmbeforecalculation •Theresultisroundedtoonedecimalplaceforcomparison •3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto5)insection4.1isappliedto determineSARtestexclusion. Whenoneofthefollowingtestexclusionconditionsissatisfiedforallcombinationsof simultaneoustransmissionconfigurations,furtherequipmentapprovalisnotrequiredto incorporatetransmittermodulesinhostdevicesthatoperateinthemixedmobileandportable hostplatformexposureconditions.Thegranteeisresponsiblefordocumentingthisaccording toClassIpermissivechangerequirements.AntennasthatqualifyforstandaloneSARtest exclusionmustapplytheestimatedstandaloneSARtodeterminesimultaneoustransmission testexclusion. a)The[∑of(thehighestmeasuredorestimatedSARforeachstandaloneantenna configuration,adjustedformaximumtune-uptolerance)/1.6W/kg]+[∑ofMPEratios]is≤ 1.0. b)TheSARtopeaklocationseparationratiosofallsimultaneouslytransmittingantennapairs operatinginportabledeviceexposureconditionsareall≤0.04,andthe[∑ofMPEratios]is≤ 1.0. 3.ConductedPeakOutputPower ModulationPacketTypeChannel PeakOutput Power (dBm) PeakOutput Power (mW) GFSK BLE1M 0-0.080.98 19-2.810.52 39-2.200.60 BLE2M 00.061.01 19-2.780.53 39-2.200.60 4.ManufacturingTolerance BLE ChannelChannel0Channel19Channel39 Target(dBm)-2-5-4 Tolerance±(dB)1.01.01.0 5.EvaluationResult Band/Modef(GHz) Antenna Distance (mm) RFoutputpower SARTest Exclusion Threshold SARTest Exclusion dBmmW BLE2.4805-2 0.63 0.1956<3.0Yes Remark: 1.Outputpowerincludingtuneuptolerance; 2.Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmaccordingtof)in section4.1isappliedtodetermineSARtestexclusion. 6.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolled RFExposureandSARExclusionThresholdperKDB447498v06. ------Endofthereport------

2.4GHz3216ChipAntenna:RANT3216F245C03 _ Application: WLAN,802.11b/g,Bluetooth,WLAN,etc... Features SMD,highreliability,ultraImpact,Omni-directional... PartnumberInformation RANT3216F245C03 (A)(B)(C)(D)(E)(F) ElectricalSpecification ThespecificationisdefinedonEVB. DimensionandTerminalConfiguration No.TerminalName 1Feeding/GNG 2GND/Feeding (A)ProductTypeChipAntenna (B)SizeCode 3.2x1.6mm( ± 0.2mm) (C)MaterialHighKmaterial (D)Frequency2.4~2.5GHz (E)FeedingmodePIFA&SingleFeeding (F)AntennatypeType=03 WorkingFrequencyRange2400~2500MHz Bandwidth120MHz(Min.) PeakGain2.25dBi(Typ.) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature(°C)-40~85°C ResistancetoSolderingHeats 10sec.(@280°C) TerminationNi/Au(Leadless) Dimension(mm) L 3.20±0.20 W 1.60±0.20 T 0.45±0.20 咏成國際科技有限公司電話: RAINInternationalTechnologyCo.,Ltd.TEL: 2.4GHz3216ChipAntenna:RANT3216F245C03 _ 1 EvaluationBoardReference 长条板 PCB 推荐 Dimension 圆板 AntennaLayoutReference Unit:mm ElectricalCharacteristics ReturnLoss&Radiation ReturnLoss Frequency(MHz) S11(dB) 2400-10.50 2450-30.62 2500-11.47 2.4GHz3216ChipAntenna:RANT3216F245C03 _ Radiation 2400MHz2450MHz2500MHz Efficiency82.52%85.26%83.01% PeakGain1.15dBi1.24dBi1.19dBi Directivity1.89dBi1.97dBi1.91dBi X Y Z 2400MHz 2450MHz 2500MHz 2.4GHz3216ChipAntenna:RANT3216F245C03 _ TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEABCD 32167”5K/Reel 9.0±0.5 60±213.5±0.5178±2 TappingSpecification PackagingTypeABWEFGHTψDP PaperType3216 1.90±0.2 0 3.50±0.2 0 8.0±0.2 0 1.75±0.1 0 3.5±0.054.0±0.102.0±0.050.75±0.1 0 1.50±0.1 0 4.0±0.1 2.4GHz3216ChipAntenna:RANT3216F245C03 _ ReliabilityTable TestItemProcedure Requirements CeramicType Remark (Reference) Electrical Characterization Fulfilltheelectrical specification UserSpec. Thermal Shock 1.Preconditioning: 50±10°C/1hr,thenkeepfor24±1hrsatroomtemp. 2.Initialmeasure:Spec:referInitialspec. 3.Rapidchangeoftemperaturetest: -30°Cto+85°C;100cycles; 15minutesatLowercategorytemperature; 15minutesatUppercategorytemperature. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 107 Temperature Cycling 1.Initialmeasure:Spec:referInitialspec. 2.100Cycles(-30°Cto+85°C),SoakMode=1(2Cycle/hours). 3.Measurementat24±2Hoursaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. JESD22 JA104 HighTemperature Exposure 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered;500hours@T=+85°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 LowTemperature Storage 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered:500hours@T=-30°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 Solderability (SMDBottomSide) Dippingmethod: a.Temperature:235±5°C b.Dippingtime:3±0.5s Thesoldershouldcover over95%ofthecritical areaofbottomside. IEC60384-21/22 4.10 SolderingHeat Resistance (RSH) Preheatingtemperature:150±10°C. Preheatingtime:1~2min. Soldertemperature:260±5°C. Dippingtime:5±0.5s NoVisibleDamage.IEC60384-21/22 4.10 Vibration5g'sfor20min.,12cycleseachof3orientations Note:Use8"X5"PCB.031"thick7securepointson,onelong sideand2securepointsatcornersofoppositesides.Parts mountedwithin2"fromanysecurepoint.Testfrom10-2000 Hz. NoVisibleDamage.MIL-STD-202 Method204 Mechanical Shock Threeshocksineachdirectionshallbeappliedalongthethree mutuallyperpendicularaxesofthetestspecimen(18shocks) Peakvalue:1,500g’s Duration:0.5ms Velocitychange:15.4ft/s Waveform:Half-sine NoVisibleDamage.MIL-STD-202 Method213 Humidity Bias 1.Humidity:85%R.H.,Temperature:85±2°C. 2.Time:500±24hours. 3.Measurementat24±2hrsaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 Method106 2.4GHz3216ChipAntenna:RANT3216F245C01 _ Board Flex (SMD) 1.Mountingmethod: IR-Reflow.PCBSize(L:100×W:40×T:1.6mm) 2.Applytheloadindirectionofthearrowuntilbendingreaches 2mm. NoVisibleDamage.AEC-Q200 005 AdhesionForceof1.8Kgfor60seconds.NoVisibleDamage Magnificationof20Xor greatermaybeemployed forinspectionofthe mechanicalintegrityofthe devicebodyterminalsand body/terminaljunction. AEC-Q200 006 Physical Dimension Anyapplicablemethodusingx10magnification,micrometers, calipers,gauges,contourprojectors,orothermeasuring equipment,capableofdeterminingtheactualspecimen dimensions. Inaccordancewith specification. JESD22 JB100 RevisionHistory RevisionDateContent 12019/03/01NewDatasheet 22020/02/22Add2Dradiationcharacteristic

ShenzhenBKCTestingCo.,Ltd.ReportNo.:BKC26010165AE TestReportTel:4000-875-3820755-84829082Web:Http://www.bkc-lab.comPage 1 of 52 TESTREPORT Applicant:GSDCo.,Ltd. Address: [39165]17,CheomdanGieop7-ro,Sandong-eup,Gumi-si, Gyeongbuk,Korea Manufacturer:GSDCo.,Ltd. Address: [39165]17,CheomdanGieop7-ro,Sandong-eup,Gumi-si, Gyeongbuk,Korea ProductName:G01PRIME:ONBeautyDevice ModelNumber:G01PRIME:ON Trademark:N/A FCCID:2BT5V-G01 TestDate: Jan.06,2026-Jan.15,2026 DateofReport: Jan.15,2026 TestResult: ThisdevicedescribedabovehasbeentestedbyBKC,andthetest resultsshowthattheequipmentundertest(EUT)isincompliance withtheStandardrequirements.Anditisapplicableonlytothetested sampleidentifiedinthereport. TestProcedureUsed: Standards:FCCCFRTitle47Part15SubpartCSection15.247 ANSIC63.10:2020 RSS-247Issue3August2023 RSS-GenIssue5,Amendment2(February2021) Preparedby(TestEngineer): StenHuang Approved(Manager): CaseyWang Approved(Manager): JerryLiao ShenzhenBKCTestingCo.,Ltd.ReportNo.:BKC26010165AE TestReportTel:4000-875-3820755-84829082Web:Http://www.bkc-lab.comPage 2 of 52 TABLEOFCONTENT 1.GeneralInformation......................................................................................5 1.1.Customerbasicinformation........................................................................................................................5 1.2.DescriptionofDevice(EUT) .......................................................................................................................5 1.3.ChannelList..................................................................................................................................................5 1.4.Summaryoftestresult ................................................................................................................................6 1.5.SpecialAccessoriesandAuxiliaryEquipment........................................................................................6 1.6.Testmode......................................................................................................................................................6 1.7.BlockDiagram...............................................................................................................................................7 1.8.TestConditions .............................................................................................................................................7 1.9.MeasurementUncertainty(95%confidencelevels,k=2) ......................................................................7 1.10.TestFacility..................................................................................................................................................8 1.11.TestEquipment...........................................................................................................................................9 2.Conductedemissionatthemainsterminalstest....................................11 2.1.Limit..............................................................................................................................................................11 2.2.TestSetup....................................................................................................................................................11 2.3.TestProcedure ............................................................................................................................................11 2.4.TestResult ...................................................................................................................................................12 3.RadiatedSpuriousEmissions...................................................................14 3.1.Limit ..............................................................................................................................................................14 3.2.TestSetup....................................................................................................................................................15 3.3.TestProcedure............................................................................................................................................17 3.4.TestResult...................................................................................................................................................18 4.ConductedSpuriousEmissions................................................................23 4.1.Limit ..............................................................................................................................................................23 4.2.TestSetup....................................................................................................................................................23 4.3.TestProcedure ............................................................................................................................................23 4.4.TestResult...................................................................................................................................................23 5.BandEdgeMeasurement...........................................................................30 5.1.Limit ..............................................................................................................................................................30 5.2.Testsetup....................................................................................................................................................30 5.3.TestProcedure............................................................................................................................................30 5.4.TestResult...................................................................................................................................................30 6.-6dBBandwidthand99%BandwidthMeasurement..............................35 6.1.Limit ...............................…

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