2A54D-MK424Bluetooth keyboard

(MK424) CustomkeyboardUserManual-V3 ForSeriesMK424 1.ProductIntroduction Customkeyboardisacomputer(andsmartphone)HIDinputdevicewhichisequivalenttoakeyboardoramouse.Youcanuseittoconfigurethe functionofthekeysbyprovidedsoftwareElfKey.Itiswidelyusedinofficework,videogamecontrol,medicalindustry,industrialindustryandsoon. CustomkeyboardislikeotherHIDdevices,itcanbeusedonmobilephones,computersandtablets,anditiscompatiblewithWindows,MAC,Linux, Android,IOS,HarmonyOSandothersystems. YoucanconnectseveralCustomkeyboardstoonecomputer,itwillnothaveanyconflictwithyourcommonkeyboardsandmice.Whenmultiple devicesareconnectedtothesoftware,pleaseselecttheproductindividuallyonsoftwarewhensettingthekeyfunctionofthecustomkeyboard. ElfKeysoftwaredownload:software.pcsensor.com 2.Aboutthecustomkeyboard ①OFF/ON:Forwiredminikeyboard:lightswitchON/OFF.Forwirelessminikeyboard:PowerswitchON/OFF. ②USB-TypeCport:Powersupplyanddevicesconnection. ③connectbutton:Afterselectingthewirelessmode,pressandhold3secondstoenterpairingmode. ④modelight:Bluelight(usbmode);Redlight(Bluetoothmode);Greenlight(2.4Gmode).Lighteffect:Flashingatanintervalof1secondindicatesa reconnectionstatus;Flashingevery2secondsindicatespairingstatus;ConnectedstatuslightingeffectscanbeconfiguredintheElfKeysoftware. ⑤Keys:Presstotriggerthekeyfunctionyou’vesetup. ⑥Sbutton:Keylayerswitchingbutton,presstoswitchkeylayers.Factorydefaultconditionthereisonly1layerofkeys.Youcanaddthe2ndand3rd layerswiththesoftware.Eachkeyvaluelayerscanbesetwithdifferentfunction. ⑦Keylight:PresstheSbutton,thedifferentcolorlightsindicatedifferentlayers. Redlight(layer1);Greenlight(layer2);Bluelight(layer3).Pleasenote:YouneedtoswitchthedevicetoUSBmodeandconnectittoacomputer,run theElfKeysoftware,andthenyoucanstarttosetupthekeyfunction. ⑧USB/2/BT:connectionmode.SwitchtoUSB（USB）、2.4G（2）orBluetooth（BT）modeconnection。 3.Howtouse 3.1ThewiredmodelsarenamedwithMK424U. ThewirelessmodelsarenamedwithMK424BT、MK424G、MK424Pro. 3.2DownloadandinstalltheElfkeysoftwarefrom:software.pcsensor.com. 3.3ConnectthecustomkeyboardtoyourcomputerwiththeUSBcable.RunElfkeysoftware,presstheconnectbuttonofthedeviceuntilmodelight turnstoblue(USBmode),andtheElfKeysoftwarewillautomaticallyrecognizethedevice. 3.4AfterconnectingbyUSBmode,youcanstartsettingupthekeyfunctionaccordingtothesoftwareguidelines.(YoucanfindElfKeyUserManualon software). 3.5Pleasenote"oneclickopen"functionofwiredversionsrequiresrunningElfKeysoftware.Otherfunctionofallversionscanbeusedwithout runningsoftware. 3.6BluetoothMode(onlyforPro、Bluetoothversion): a:switchmodeselectorUSB/2/BTtoBTmode. b:Pressandholdtheconnectbuttonfor3-5seconds,thenthelightwillblinkevery2secondstoenterthepairingmode, c:SearchfortheBluetoothnamed"devicemodel"onyourdeviceandconnect.Aftersuccessfulconnection,theindicatorlightturnsonfor2seconds, andthentheredlightwillflashandturnoff. 3.72.4GMode(onlyforPro、2.4Gversion):SwitchmodeselectorUSB/2/BTto2.4Gmode,inserttheUSBreceiverintothedevice.Aftersuccessful connection,theindicatorlightstaysonfor2seconds,andthentheindicatorlightwillflash.(Noneedtopair). Ifyouneedtopairthe2.4Greceiveragain,pressandholdtheconnectbuttonfor3-5secondstoenterpairingmode.TheninserttheUSBreceiverto thecomputer,andthedevicewillautomaticallypairwhenitisnearbythereceiver.Aftersuccessfulpairing,theindicatorlightstaysonfor2seconds,then flash. 4.FunctionIntroduction 4.1.Keyboardandmousefunctions:Asinglekeyofthecustomkeyboardcabesettokey,keycombo,shortcut,hotkeysormousecursorscroll up/down. 4.2.Stringfunction:Continuouslyoutputlettersorsymbols,upto38characterslike“hello,world.” 4.3.Multimediafunctions:Commonfunctionssuchasvolume+,volume-,Play/Pause,click“mycomputer”etc. 4.4.Macrodefinitionfunction:Thisfunctioncansetacombinationactionofkeyboardandmouse,andyoucancustomadelaytimetothisaction.You canusetherecordingfunctiontorecordtheactionsofkeyboardandmouse. 4.5.“One-KeyOpen”function(wiredversiononly):One-clickopensthespecifiedfiles,PPTs,folders,webpagesthatyou’vesetup.(Thisfunction worksonlywhenthesoftwareisrunning,soitisonlyavailableinwiredversions). FormoreinformationabouthowtoconfigureElfkey,seeHowtoUseElfkey. 5.Productparameters 1.Productname:MiniKeyboard 2.Bluetoothcommunicationdistance:≥10m 3.Bluetoothversion:Bluetooth5.1 4.2.4Gcommunicationdistance:≥10m 5.Powersupply:lithiumbattery 6.Shaftbody:greenshaft 7.Switchservicelife:50milliontimes 8.Connection:Bluetooth,2.4G,USB 9.Productsize:95*40*27.5mm 10.Productweight:about50grams For more questions, you can ask the customer service phone number and customer service email at the bottom of the official website for help. Thank you. FCC Statement 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. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. 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 mus…

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SHENZHEN RDING TECH CO.,LIMITED Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 9/18/2024 U.S. Agent Designation SHENZHEN RDING TECH CO.,LIMITED acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2A54D-MK424): Name and company of U.S. agent: FCC US Agent, LLC Physical U.S. address of agent: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA FRN of U.S. agent: 0033402884 Email address of U.S. agent: [email protected] FCC US Agent, LLC acknowledges their obligation to accept service of process on behalf of SHENZHEN RDING TECH CO.,LIMITED. SHENZHEN RDING TECH CO.,LIMITED with the FRN 0032182891 accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Since rely, Signature xuefeng chen manager SHENZHEN RDING TECH CO.,LIMITED Signature Tim Payne Manager FCC US Agent, LLC 48_[model] US_Agent_2.911(d)(7)-U, V05

Page1of5FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity ExternalPhotosoftheEUT Fig.1 Fig.2 Page2of5FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.3 Fig.4 Page3of5FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.5 Fig.6 Page4of5FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.7 Fig.8 Page5of5FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.9 Fig.10

Page1of1FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity LABELANDLOCATION (Size:L4.0cmxW1.5cm) LabelLocation Bluetoothkeyboard TestModel:MK424Pro FCCID:2A54D-MK424

Page1of5FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity InternalPhotosoftheEUT Fig.1 Fig.2 Page2of5FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.3 Fig.4 Page3of5FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.5 Fig.6 Antenna Page4of5FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.7 Fig.8 Page5of5FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity Fig.9

Page1of3FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity FCCRFExposureEvaluation 1.ProductInformation FCCID:2A54D-MK424 Productname:Bluetoothkeyboard TestModel:MK424Pro AdditionalModelNo.:MK424G,MK424BT,MK424U ModelDeclaration:PCBboard,structureandinternalofthesemodel(s)arethesame, Sonoadditionalmodelsweretested PowerSupply:DC3.7VbyRechargeableLi-ionBattery,1500mAh HardwareVersion:MK424Pro-P2 SoftwareVersionMK424Pro_V1.1 Bluetooth:2402MHz~2480MHz ChannelNumber:40channelsforBluetoothV5.1(DTS) ChannelSpacing:2MHzforBluetoothV5.1(DTS) ModulationType:GFSKforBluetoothV5.1(DTS) BluetoothVersion:V5.1 AntennaType:PCBAntenna AntennaGain: 1.9dBi 2.4G: FrequencyRange:2405MHz-2476MHz ChannelNumber:15Channels ModulationType:GFSK AntennaDescription:PCBAntenna,1.9dBi(Max.) Exposurecategory:Generalpopulation/uncontrolledenvironment EUTType:ProductionUnit DeviceType:PortableDevice 2.EvaluationmethodandLimit AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1StandaloneSAR testexclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposureKDB procedures,standalone1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulation exposureconditions,bymeasurementornumericalsimulation,isnotrequiredwhenthe correspondingSARTestExclusionThresholdcondition,listedbelow,issatisfied.Thesetest exclusionconditionsarebasedonsource-basedtime-averagedmaximumconductedoutputpower oftheRFchannelrequiringevaluation,adjustedfortune-uptolerance,andtheminimumtest separationdistancerequiredfortheexposureconditions.22Theminimumtestseparationdistance isdeterminedbythesmallestdistancefromtheantennaandradiatingstructuresoroutersurfaceof thedevice,accordingtothehostformfactor,exposureconditionsandplatformrequirements,toany partofthebodyorextremityofauserorbystander(see5)ofsection4.1).ToqualifyforSARtest exclusion,thetestseparationdistancesappliedmustbefullyexplainedandjustifiedbythe operatingconfigurationsandexposureconditionsofthetransmitterandapplicablehostplatform requirements,typicallyintheSARmeasurementorSARanalysisreport,accordingtotherequired publishedRFexposureKDBprocedures.WhennootherRFexposuretestingorreportingis required,astatementofjustificationandcompliancemustbeincludedintheequipmentapproval,in lieuoftheSARreport,toqualifyfortheSARtestexclusion.Whenrequired,thedevicespecific Page2of3FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity conditionsdescribedintheotherpublishedRFexposureKDBproceduresmustbesatisfiedbefore applyingtheseSARtestexclusionprovisions;forexample,handheldPTTtwo-wayradios,handsets, laptops&tabletsetc.“ [(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,adistanceof5mmaccordingtof)insection4.1isappliedto determineSARtestexclusion. Whenoneofthefollowingtestexclusionconditionsissatisfiedforallcombinationsof simultaneoustransmissionconfigurations,furtherequipmentapprovalisnotrequiredto incorporatetransmittermodulesinhostdevicesthatoperateinthemixedmobileandportablehost platformexposureconditions.ThegranteeisresponsiblefordocumentingthisaccordingtoClassI permissivechangerequirements.AntennasthatqualifyforstandaloneSARtestexclusionmust applytheestimatedstandaloneSARtodeterminesimultaneoustransmissiontestexclusion. a)The[∑of(thehighestmeasuredorestimatedSARforeachstandaloneantennaconfiguration, adjustedformaximumtune-uptolerance)/1.6W/kg]+[∑ofMPEratios]is≤1.0. b)TheSARtopeaklocationseparationratiosofallsimultaneouslytransmittingantennapairs operatinginportabledeviceexposureconditionsareall≤0.04,andthe[∑ofMPEratios]is≤ 1.0. 3.ReferEvaluationMethod ANSIC95.1–1999:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadio FrequencyElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevices RFExposureProceduresandEquipmentAuthorizationPolicies. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1093:Radiofrequencyradiationexposureevaluation:portabledevices 4.ConductedPowerResults <BLE> ModeChannelFrequency(MHz)PeakConductedOutputPower(dBm) GFSK 02402 0.42 192440 0.24 392480 -0.77 <2.4G> ModeChannelFrequency(MHz)PeakConductedOutputPower(dBm) GFSK 12405 0.16 92440 -0.21 152476 -0.49 Page3of3FCCID:2A54D-MK424 ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity 5.ManufacturingTolerance <BLE> GFSK(Peak) ChannelChannel0Channel19Channel39 Target(dBm)000 Tolerance±(dB)1.01.01.0 <2.4G> GFSK(Peak) ChannelChannel1Channel9Channel15 Target(dBm)000 Tolerance±(dB)1.01.01.0 6.EvaluationResults 6.1StandaloneEvaluation Band/Modef(GHz) Antenna Distance (mm) RFoutputpower SARTest Exclusion Threshold SARTest Exclusion dBmmW BLEGFSK2.48051.01.25890.3965<3.0Yes 2.4GGFSK2.47651.01.25890.3962<3.0Yes Remark: 1.Outputpowerincludingtuneuptolerance; 2.Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmaccordingtof)insection 4.1isappliedtodetermineSARtestexclusion. 6.2SimultaneousTransmissionforSARExclusion ThesamplesupportoneBTmod…

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Antennaspecification QuickReferenceData Antennamoduleonthesystemboard FrequencRange2400~2500MHz Ant.PortInputPwr.(dBm)0(Typ.BTclass2outputpower) Tot.Rad.Pwr.(dBm)-1.2(Inputpwr–losspwr) PeakEIRP(dBm)1.2 Directivity(dBi)1(alldirectionantenna) Efficiency(dB)60.2% Gain(dBi)1.2(AvgGainXY-plane) MaximumPower(dBm)1.7(XY-plane) MinimumPower(dBm)-4(XY-plane) Avg.Power(dBm)-0.5(XY-plane) InputImpendence(ohm)50 PolarizationTypeVertical&Horizontal V.S.W.R<1.4 Manufacturer.SHENZHENRDINGTECHCO.,LIMITED Allthetechnicaldataandinformationcontainedhereinaresubjecttochangewithoutpriornotice AntennaLayout&moduleonthesystemboard AntennaGain GainTable [email protected] XY-planeXZ-planeYZ-planeEfficiency PeakAvg.PeakAvg.PeakAvg. ModuleBoard 1.2-0.51.9-3.61.1-3.060.2% ReturnLoss TheEnvironmentofAntennaRadiationPattern 3Dradiationpatterndiagram XY-planeXZ-planeYZ-plane

Page 1 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity AppendixA RFTestDataforBTLE(ConductedMeasurement) ProductName:Bluetoothkeyboard TestModel:MK424Pro EnvironmentalConditions Temperature: 23.8  C RelativeHumidity:52.1% ATMPressure:100.0kPa TestEngineer:CanKun Supervisedby:NickPeng Page 2 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity A.1-6dBBandwidth ConditionModeFrequency(MHz)Antenna-6dBBandwidth(MHz)Limit-6dBBandwidth(MHz)Verdict NVNTBLE1M2402Ant10.654>=0.5Pass NVNTBLE1M2440Ant10.66>=0.5Pass NVNTBLE1M2480Ant10.653>=0.5Pass Page 3 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TestGraphs -6dBBandwidthNVNTBLE1M2402MHzAnt1 -6dBBandwidthNVNTBLE1M2440MHzAnt1 Page 4 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity -6dBBandwidthNVNTBLE1M2480MHzAnt1 Page 5 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity A.2MaximumConductedOutputPower ConditionModeFrequency (MHz) AntennaTotalPower (dBm) Limit(dBm)Verdict NVNTBLE1M2402Ant10.4230Pass NVNTBLE1M2440Ant10.2430Pass NVNTBLE1M2480Ant1-0.7730Pass Page 6 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TestGraphs PowerNVNTBLE1M2402MHzAnt1 PowerNVNTBLE1M2440MHzAnt1 Page 7 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity PowerNVNTBLE1M2480MHzAnt1 Page 8 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity A.3MaximumPowerSpectralDensityLevel ConditionModeFrequency (MHz) AntennaTotalPSD (dBm/3kHz) Limit (dBm/3kHz) Verdict NVNTBLE1M2402Ant1-17.928Pass NVNTBLE1M2440Ant1-16.398Pass NVNTBLE1M2480Ant1-17.548Pass Page 9 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TestGraphs PSDNVNTBLE1M2402MHzAnt1 PSDNVNTBLE1M2440MHzAnt1 Page 10 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity PSDNVNTBLE1M2480MHzAnt1 Page 11 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity A.4BandEdge ConditionModeFrequency(MHz)AntennaMaxValue(dBc)Limit(dBc)Verdict NVNTBLE1M2402Ant1-55.42-20Pass NVNTBLE1M2480Ant1-55.83-20Pass Page 12 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TestGraphs BandEdgeNVNTBLE1M2402MHzAnt1Ref BandEdgeNVNTBLE1M2402MHzAnt1Emission Page 13 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity BandEdgeNVNTBLE1M2480MHzAnt1Ref BandEdgeNVNTBLE1M2480MHzAnt1Emission Page 14 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity A.5ConductedRFSpuriousEmission ConditionModeFrequency(MHz)AntennaMaxValue(dBc)Limit(dBc)Verdict NVNTBLE1M2402Ant1-47.07-20Pass NVNTBLE1M2440Ant1-43.85-20Pass NVNTBLE1M2480Ant1-54.99-20Pass Page 15 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EA ShenzhenLCSComplianc…

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Page 1 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity AppendixB RFTestDatafor2.4G(ConductedMeasurement) ProductName:Bluetoothkeyboard TestModel:MK424Pro EnvironmentalConditions Temperature: 23.8  C RelativeHumidity:52.1% ATMPressure:100.0kPa TestEngineer:CanKun Supervisedby:NickPeng Page 2 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity B.1-6dBBandwidth ConditionModeFrequency(MHz)Antenna-6dBBandwidth(MHz)Limit-6dBBandwidth(MHz)Verdict NVNT2.4G2405Ant11.369>=0.5Pass NVNT2.4G2440Ant11.376>=0.5Pass NVNT2.4G2476Ant11.341>=0.5Pass Page 3 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TestGraphs -6dBBandwidthNVNT2.4G2405MHzAnt1 -6dBBandwidthNVNT2.4G2440MHzAnt1 Page 4 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity -6dBBandwidthNVNT2.4G2476MHzAnt1 Page 5 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity B.2MaximumConductedOutputPower ConditionModeFrequency (MHz) AntennaTotalPower (dBm) Limit(dBm)Verdict NVNT2.4G2405Ant10.1630Pass NVNT2.4G2440Ant1-0.2130Pass NVNT2.4G2476Ant1-0.4930Pass Page 6 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TestGraphs PowerNVNT2.4G2405MHzAnt1 PowerNVNT2.4G2440MHzAnt1 Page 7 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity PowerNVNT2.4G2476MHzAnt1 Page 8 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity B.3MaximumPowerSpectralDensityLevel ConditionModeFrequency (MHz) AntennaTotalPSD (dBm/3kHz) Limit (dBm/3kHz) Verdict NVNT2.4G2405Ant1-14.788Pass NVNT2.4G2440Ant1-15.838Pass NVNT2.4G2476Ant1-15.388Pass Page 9 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TestGraphs PSDNVNT2.4G2405MHzAnt1 PSDNVNT2.4G2440MHzAnt1 Page 10 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity PSDNVNT2.4G2476MHzAnt1 Page 11 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity B.4BandEdge ConditionModeFrequency(MHz)AntennaMaxValue(dBc)Limit(dBc)Verdict NVNT2.4G2405Ant1-53.05-20Pass NVNT2.4G2476Ant1-53.21-20Pass Page 12 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity TestGraphs BandEdgeNVNT2.4G2405MHzAnt1Ref BandEdgeNVNT2.4G2405MHzAnt1Emission Page 13 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity BandEdgeNVNT2.4G2476MHzAnt1Ref BandEdgeNVNT2.4G2476MHzAnt1Emission Page 14 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd. Add:101,201BldgA&301BldgC,JujiIndustrialParkYabianxueziwei,ShajingStreet,BaoanDistrict,Shenzhen, 518000,China Tel:+(86)0755-82591330|E-mail:[email protected]|Web:www.lcs-cert.com Scancodetocheckauthenticity B.5ConductedRFSpuriousEmission ConditionModeFrequency(MHz)AntennaMaxValue(dBc)Limit(dBc)Verdict NVNT2.4G2405Ant1-48.47-20Pass NVNT2.4G2440Ant1-49.15-20Pass NVNT2.4G2476Ant1-49.89-20Pass Page 15 of 23 FCCID:2A54D-MK424ReportNo.:LCSA08024031EB ShenzhenLCSComplianceTestingLaboratoryLtd.…

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