B4O-MINIWKBMini Wireless Keyboard

FCCID : B4O-MINIWKB ICID: 21698-MINIWKB This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) This device may not cause interference, and (2) This device must accept any interference, including interference that may cause undesired operation of the device. Le présentappareilestconforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitationestautorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareildoit accepter tout brouillageradioélectriquesubi, mêmesi le brouillageest susceptible d'encompromettre le fonctionnement. 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.

C5266091_X8_Ed.1 1/1 LetterofAuthorization GT-tronicsHKLimited Company:GT-tronicsHKLimited Address:B210,TonicIndustrialCenter,19LamHingStreet,Kowloon Bay,HongKong ProductName:MiniWirelessKeyboard ModelNumber:BU10144 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:DennisWongDate:2022-3-25 Title:AdminAsst Signatureofapplicant:

C5266091_X10_Ed.2 1/1 GT-tronicsHKLimited OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:2022-03-25 Subject:RequestforConfidentiality FCCID:B4O-MINIWKB ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality NOTE2 IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo ☐ BlockDiagram ☒☐ Schematics ☒☐ TestReportNoNo TestSetupPhotosNo ☐ User’sManual ☐ NOTE 1 ☐ InternalPhotos ☐ NOTE 1 ☐ PartsList/TuneUp ☐☐ RFExposureInfoNoNo OperationalDescription ☒☐ CoverLetter(s)NoNo SDRSoftware/SecurityInfo ☐ No NOTE1:Long-TermConfidentialitymaybepermittedunderspecialconditions(SeeII.LONG-TERMCONFIDENTIALITY,Section3of KDB726920,uselastinforce) NOTE2:Short-TermConfidentialitycanberequestedforamaximumof180daysfromthedateofthegrant. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Incaseofshort-termConfidentiality,theapplicantrequeststheexhibitsselected abovearewithheldfrompublicviewforaperiodofdaysfromthedateofthe GrantofEquipmentAuthorizationandpriortomarketing. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. Sincerely, C5266091_X10_Ed.2 1/1 Signature: Name:DennisWong Title:AdminAsst

FCC ID: B4O-MINIWKB

FCC ID: B4O-MINIWKB Antenna

Page 1 of 35 FCCTESTREPORT FCCID:B4O-MINIWKB Product:MiniWirelessKeyboard ModelName:BU10144 Brand:MakerSpot ReportNo.:PTC22022501701E-FC01 Preparedfor GT-tronicsHKLimited B210,TonicIndustrialCenter,19LamHingStreet,KowloonBay,HongKong Preparedby PreciseTesting&CertificationCo.,Ltd. Building1,No.6,TongxinRoad,DongchengStreet,Dongguan,Guangdong,China ReportNo.:PTC22022501701E-FC01 Page 2 of 35 1TESTRESULTCERTIFICATION Applicant’sname:GT-tronicsHKLimited Address: B210,TonicIndustrialCenter,19LamHingStreet,KowloonBay,Hong Kong Manufacture'sname1:DongGuanZhaoBoTechnologyLimited Address1: BlockA11,FuMinIndustrialAreaFengGangTown,DongGuanCity GuangDongProvince,CHINA Manufacture'sname2:TIANCHANGLIMINGELECTRONICSCO.,LTD. Address2: NO.1INDUSTRIALZONE,QINLANTOWN,TIANCHANG,ANHUI, CHINA239341 Productname:MiniWirelessKeyboard Modelname:BU10144 Standards:FCCPart15SubpartC,Paragraph15.249 Testprocedure:ANSIC63.10:2013 TestDate:Mar.10,2022toMar.21,2022 DateofIssue:Mar.21,2022 TestResult:Pass ThisdevicedescribedabovehasbeentestedbyPTC,andthetestresultsshowthatthe equipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonly tothetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofPTC,this documentmaybealteredorrevisedbyPTC,personalonly,andshallbenotedintherevisionof thedocument. TestEngineer: AbelYu/Engineer TechnicalManager: WuWeimin/Manager ReportNo.:PTC22022501701E-FC01 Page 3 of 35 Contents Page 1TESTRESULTCERTIFICATION...........................................................................................................................................2 2TESTSUMMARY......................................................................................................................................................................5 2.1TESTSITE........................................................................................................................................................................6 3GENERALINFORMATION.....................................................................................................................................................7 3.1GENERALDESCRIPTIONOFE.U.T.................................................................................................................................7 3.2CHANNELLIST.................................................................................................................................................................8 4EQUIPMENTDURINGTEST..................................................................................................................................................9 4.1EQUIPMENTSLIST...........................................................................................................................................................9 4.2MEASUREMENTUNCERTAINTY.....................................................................................................................................10 4.3DESCRIPTIONOFSUPPORTUNITS...............................................................................................................................10 5CONDUCTEDEMISSION......................................................................................................................................................11 5.1E.U.T.OPERATION.......................................................................................................................................................11 5.2EUTSETUP...................................................................................................................................................................11 5.3TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION).............................................................................................12 5.4MEASUREMENTPROCEDURE........................................................................................................................................12 5.5CONDUCTEDEMISSIONLIMIT.......................................................................................................................................12 5.6MEASUREMENTDESCRIPTION......................................................................................................................................12 5.7CONDUCTEDEMISSIONTESTRESULT.........................................................................................................................12 6RADIATEDEMISSIONANDBANDEDGE........................................................................................................................15 6.1TESTSTANDARDANDLIMIT..........................................................................................................................................15 6.2TESTSETUP..................................................................................................................................................................16 6.3TESTPROCEDURE.........................................................................................................................................................17 6.4TESTDATA....................................................................................................................................................................18 720DBBANDWIDTHTEST.....................................................................................................................................................24 7.1TESTSTANDARDANDLIMIT..........................................................................................................................................24 7.2TESTSETUP..................................................................................................................................................................24 7.3TESTPROCEDURE.........................................................................................................................................................24 7.4TES…

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ConductedEmissions RadiatedEmissions From30MHz-1000MHz FCC ID: B4O-MINIWKB TestfrequencyfromAbove1GHz