2A2O7-K230Wireless Keyboard

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. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction

KozhtechTechnologyCo.,Ltd ModelDifference Productdescription:WirelessKeyboard Modelname:K230 K231,B046,K480 TradeName:N/A FCCID:2A2O7-K230 AllthemodelarethesamecircuitandRFmodule,onlyformodelname. Regards Sincerely Client’ssignature: Client’sname/title:Jerryke Contactinformation/address:SecondFloor,BlockB,JinhuiBuilding,Huaide Community,HumenTown,DongguanCity,GuangdongProvince

C5266091_X8_Ed.1 1/1 LetterofAuthorization <KozhtechTechnologyCo.,Ltd> Company:KozhtechTechnologyCo.,Ltd Address:SecondFloor,BlockB,JinhuiBuilding,HuaideCommunity,Humen Town,DongguanCity,GuangdongProvince ProductName:WirelessKeyboard ModelNumber:K230 K231,B046,K480 FCCIdentifier:2A2O7-K230 WeauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdelCarme,s/n, 08193Bellaterra,Spain,toactonourbehalfonallmattersconcerningthe abovenamedequipment. AnyindividualwithinLGAITechnologicalCenterS.A.isauthorizedtoactonour behalfandtakeactionontheapplication. WedeclarethatauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdel Carme,s/n,08193Bellaterra,Spain,isallowedtoforwardallinformation relatedtotheapprovalprojecttotheFederalCommunicationCommissionand todiscussanyissuesconcerningtheapprovalapplication.Anyandallacts carriedoutbyLGAITechnologicalCenterS.A.onourbehalfshallhavethe sameeffectasactsofourown. Name:JerrykeDate:2021-07-23 Title:N/A Signatureofapplicant:

C5266091_X10_Ed.1 1/1 <KozhtechTechnologyCo.,Ltd> OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:2021-07-23 Subject:RequestforConfidentiality FCCID:2A2O7-K230 ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo BlockDiagram Schematics TestReportNoNo TestSetupPhotosNo User’sManual InternalPhotos PartsList/TuneUp RFExposureInfo OperationalDescription CoverLetter(s)NoNo SDRSoftware/SecurityInfoNo Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. Sincerely, Signature: Name:Jerryke Title:N/A

EUTPHOTO(ExternalPhotos)

Wireless Keyboard 2A2O7-K230

EUTPHOTO(InternalPhotos) BTANT RF chipset

f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, ForBluetooth MaxPower(dBm)MaxPower(mW)Frequency(MHz)Min.distance(mm)Calc. thresholdslimit 240253.0 SoaSARtestisnotrequired FCC ID:2A2O7-K230 RF Exposure Evaluation According to KDB 447498 and part 2.1093 ， Unless specifically required by thepublished RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the correspondingSAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f (GHz) ] ≤ 3.0 for 1-g SAR, and ≤ 7.5 for 10-g extremity SAR, where 3.781 2.388 0.74031

ProjectNo.:ZKT-2106092451 Page 1 of 39 FCCTESTREPORT FCCID:2A2O7-K230 ReportNumber. .................................. :ZKT-2106092451 DateofTest ....................................................... :Jun.01,2021toJun.18,2021 Dateofissue.........................................:Jun.18,2021 Totalnumberofpages..........................39 TestResult ............................................ : PASS TestingLaboratory. ........................... : ShenzhenZKTTechnologyCo.,Ltd. Address ............................................... : 1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China Applicant'sname.............................:KozhtechTechnologyCo.,Ltd Address ............................................... : SecondFloor,BlockB,JinhuiBuilding,HuaideCommunity,Humen Town,DongguanCity,GuangdongProvince Manufacturer'sname ...................... :KozhtechTechnologyCo.,Ltd Address ............................................... : SecondFloor,BlockB,JinhuiBuilding,HuaideCommunity,Humen Town,DongguanCity,GuangdongProvince Testspecification: Standard ................................................ :FCCCFRTitle47Part15SubpartCSection15.247 Testprocedure ..................................... : / Non-standardtestmethod................:N/A TestReportFormNo........................: TRF-EL-110_V0 TestReportForm(s)Originator.....: ZKTTesting MasterTRF ........................................ : Dated:2020-01-06 ThisdevicedescribedabovehasbeentestedbyZKT,andthetestresultsshowthattheequipmentunder test(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZKT,thisdocumentmay bealteredorrevisedbyZKT,personalonly,andshallbenotedintherevisionofthedocument. Productname.....................................:WirelessKeyboard Trademark ........................................... : N/A Model/Typereference ......................... : K230 K231,B046,K480 Ratings..................................................:Input:DC5VorDC3.7VBattery ProjectNo.:ZKT-2106092451 Page 2 of 39 Testingprocedureandtestinglocation: TestingLaboratory.......................................:ShenzhenZKTTechnologyCo.,Ltd. Address ............................................................ :1/F,No.101,BuildingB,No.6,TangweiCommunity IndustrialAvenue,FuhaiStreet,Bao'anDistrict, Shenzhen,China AlenHe Testedby(name+signature).......................: JoeLiu Reviewer(name+signature).......................: LakeXie Approved(name+signature).......................: ProjectNo.:ZKT-2106092451 Page 3 of 39 TableofContents Page 1.VERSION5 2.SUMMARYOFTESTRESULTS6 2.1TESTFACILITY7 2.2MEASUREMENTUNCERTAINTY7 3.GENERALINFORMATION8 3.1GENERALDESCRIPTIONOFEUT8 3.2DESCRIPTIONOFTESTMODES9 3.3BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED10 3.4DESCRIPTIONOFSUPPORTUNITS(CONDUCTEDMODE)10 3.5EQUIPMENTSLISTFORALLTESTITEMS11 4.EMCEMISSIONTEST12 4.1CONDUCTEDEMISSIONMEASUREMENT12 4.1.1POWERLINECONDUCTEDEMISSIONLIMITS12 4.1.2TESTPROCEDURE12 4.1.3DEVIATIONFROMTESTSTANDARD12 4.1.4TESTSETUP13 4.1.6TESTRESULT14 4.2RADIATEDEMISSIONMEASUREMENT16 4.2.1RADIATEDEMISSIONLIMITS16 4.2.2TESTPROCEDURE16 4.2.3DEVIATIONFROMTESTSTANDARD17 4.2.4TESTSETUP17 4.2.5EUTOPERATINGCONDITIONS18 4.2.6TESTRESULTS19 5.RADIATEDBANDEMISSIONMEASUREMENT24 5.1TESTREQUIREMENT:24 5.2TESTPROCEDURE24 5.3DEVIATIONFROMTESTSTANDARD24 5.4TESTSETUP25 5.5EUTOPERATINGCONDITIONS25 5.6TESTRESULT26 6.POWERSPECTRALDENSITYTEST27 6.1APPLIEDPROCEDURES/LIMIT27 6.2TESTPROCEDURE27 6.3DEVIATIONFROMSTANDARD27 6.4TESTSETUP27 6.5EUTOPERATIONCONDITIONS27 ProjectNo.:ZKT-2106092451 Page 4 of 39 6.6TESTRESULT28 7.CHANNELBANDWIDTH&99%OCCUPYBANDWIDTH30 7.1APPLIEDPROCEDURES/LIMIT30 7.2TESTPROCEDURE30 7.3DEVIATIONFROMSTANDARD30 7.4TESTSETUP30 7.5EUTOPERATIONCONDITIONS30 7.6TESTRESULT31 8.MAXIMUMOUTPUTPOWERMEASUREMENT33 8.1APPLIEDPROCEDURES/LIMIT33 8.2TESTPROCEDURE33 8.3DEVIATIONFROMSTANDARD33 8.4TESTSETUP33 8.5EUTOPERATIONCONDITIONS33 8.6TESTRESULT33 9.CONDUCTEDBANDEDGEANDSPURIOUSEMISSION34 9.1APPLICABLESTANDARD34 9.2TESTPROCEDURE34 9.3DEVIATIONFROMSTANDARD34 9.4TESTSETUP34 9.5EUTOPERATIONCONDITIONS34 9.6TESTRESULTS34 10.ANTENNAREQUIREMENT39 11.TESTSETUPPHOTO39 12.EUTCONSTRUCTIONALDETAILS39 ProjectNo.:ZKT-2106092451 Page 5 of 39 1.VERSION ReportNo.VersionDescriptionApproved ZKT-2106092451Rev.01InitialissueofreportJun.18,2021 ProjectNo.:ZKT-2106092451 Page 6 of 39 2.SUMMARYOFTESTRESULTS Testproceduresaccordingtothetechnicalstandards: FCCPart15(15.247),SubpartC Standard Section TestItemResultRemark FCCpart15.203/15.247 (c) AntennarequirementPASS FCCpart15.207ACPowerLineConductedEmissionPASS FCCpart15.247(b)ConductedPeakOutputPowerPASS FCCpart15.247(a)(2)6dBBandwidth&99%BandwidthPASS FCCpart15.247(e)PowerSpectralDensityPASS FCCpart15.247(d)BandEdgePASS FCCPart15.247(d)SpuriousEmissionPASS NOTE: (1)”N/A”denotestestisnotapplicableinthisTestReport ProjectNo.:ZKT-2106092451 Page 7 of 39 2.1TESTFACILITY ShenzhenZKTTechnologyCo.,Ltd. Add.:1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrialAvenue,FuhaiStreet,Bao'an District,Shenzhen,China FCCTestFirmRegistrationNumber:692225 DesignationNumber:CN1299 ICRegisteredNo.:27033 2.2MEASUREMENTUNCERTAINTY Thereporteduncertaintyofmeasurementy±U，whereexpendeduncertaintyUisbasedonastandard uncertaintymultipliedbyacoveragefactorofk=2 ， providingalevelofconfidenceofapproximately95 %。 No.ItemUncertainty 1ConductedEmissionTest±1.38dB 2RFpowerconducted±0.16dB 3Spuriousemissionsconducted±0.21dB 4Allemissionsradiated(<1G)±4.68dB 5Allemissionsradiated(>1G)±4.89dB 6Temperature±0.5°C 7Humidity±2% ProjectNo.:ZKT-2106092451 Page 8 of 39 3.GENERALINFORMATION 3.1GENERALDESCRIPTIONOFEUT ProductName: WirelessKeyboard ModelNo.: K230 SerialNo.: N/A HardwareVersion: V0.3 SoftwareVersion: V1.8 Sample(s)Status: Engineersample Channelnumbers: 40 Channelseparation: 2402MHz~2480MHz Modulationtechnology: GFSK AntennaType: PCBAntenna Antennagain: 2dBi Powersupply:…

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

EUTTESTPHOTO