2BDJRCTU-301Wireless Keyboard

ShenzhenSeendaTechnologyCo.,Ltd. FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 10/23/25 U.S.AgentDesignation GoldenWillMerchantsIncacknowledgestheirobligationtoacceptserviceofprocessonbehalfof[Shenzhen SeendaTechnologyCo.,Ltd.] [Shenzhen Seenda Technology Co., Ltd.]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:2BDJRCTU-301: Name and company of U.S. agent:Golden Will Merchants Inc Physical U.S. address of agent:25700 INTERSTATE 45 #4119 THE WOODLANDS TEXAS TEXAS 77386 FRN of U.S. agent:0035426253 Contact Email:[email protected] ContactPhone:(281) 302-9025 . [ShenzhenSeendaTechnologyCo.,Ltd.]withtheFRN[0034467704]acceptsitsobligationtomaintainan agentforserviceofprocessintheUnitedStatesfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S.,orthe conclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolvingtheequipment,whicheveris later. Bysigningthisform,weconfirmtheaboveandthatweareawareoftheapplicationrequirementslistedunder§ 2.911(d)(7). TheinformationprovidedinthisletterisbasedonthereferencedrulepartsofTitle47oftheCFRaswellasKDB 986446D01. Anexpirationdateforthisletterdoesnotexist.IncasetheU.S.agentchanges,thegranteeisobligatedtonotify theFCCwithin30daysviathegrantingTCB. Sincerely, Signature [Name]QiangYu [Title]Manager [Company]ShenzhenSeendaTechnologyCo.,Ltd. ContactEmail:[email protected] ContactPhone:+86-18675513228 4 8 _ [ m o d e l ] U S _ A g e n t _ 2 . 9 1 1 ( d ) ( 7 ) - U , V 0 5 ShenzhenSeendaTechnologyCo.,Ltd. Signature [NameofU.S.agent]NgyuenYu [TitleofU.S.agent]Manager [CompanyofU.S.agent]GoldenWillMerchantsInc

ShenzhenSeendaTechnologyCo.,Ltd. #3402-3405,3410-3411,BuildingB,LonghuaDistrictDigitalInnovationCenter,BeizhanCommunity,Minzhi Street,LonghuaDistrict,ShenzhenChina 1|Page AttestationStatements To:FederalCommunicationsCommissionDate:Nov.27,25 7435OaklandMillsRoad, Columbia,MD21046,USA Subject:AttestationofCompliancewithFCCCoveredListSoftwareRequirements FCCID:2BDJRCTU-301 ProductName:WirelessKeyboard Thisletterservesasanattestationthattheequipmentidentifiedaboveisnot(selectone)"covered"software asdefinedundertheFederalCommunicationsCommission(FCC)CoveredListrequirements,asoutlined inFCC22-84andKDB986446. 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, PrintedName:QiangYu Title:Manager Address:#3402-3405,3410-3411,BuildingB,LonghuaDistrictDigitalInnovationCenter,Beizhan Community,MinzhiStreet,LonghuaDistrict,ShenzhenChina Tel.:+86-18675513228 Email:[email protected] ShenzhenSeendaTechnologyCo.,Ltd. #3402-3405,3410-3411,BuildingB,LonghuaDistrictDigitalInnovationCenter,BeizhanCommunity,Minzhi Street,LonghuaDistrict,ShenzhenChina 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

ShenzhenSeendaTechnologyCo.,Ltd. #3402-3405,3410-3411,BuildingB,LonghuaDistrictDigitalInnovationCenter,Beizhan Community,MinzhiStreet,LonghuaDistrict,ShenzhenChina AttestationStatements NotCoveredEntityApplicant&NotCoveredEquipment To:FederalCommunicationsCommissionDate:11/27/2025 7435OaklandMillsRoad, Columbia,MD21046,USA Ref:InformationRequiredbySection2.911(d)(5)(i)&(ii) FCCID:2BDJRCTU-301 ShenzhenSeendaTechnologyCo.,Ltd.certifiesthat,asofthedateofthefilingoftheapplication,the applicantisnotidentifiedontheCoveredList,establishedpursuantto§1.50002ofreferencechapter, asanentityproducing“covered”communicationequipment.Theequipmentforwhichauthorizationis soughtisnot“covered”telecommunicationsequipmentandvideosurveillanceequipmentproducedby entitiesidentifiedontheCommission’sCoveredListthatprohibitedfromreceivinganequipment authorizationpursuanttosection§2.903oftheFCCrules. Sincerelyyours, PrintedName:QiangYu Title:Manager Address:#3402-3405,3410-3411,BuildingB,LonghuaDistrictDigitalInnovationCenter,Beizhan Community,MinzhiStreet,LonghuaDistrict,ShenzhenChina Tel.:+86-18675513228 Email:[email protected]

ShenzhenSeendaTechnologyCo.,Ltd. #3402-3405,3410-3411,BuildingB,LonghuaDistrictDigitalInnovationCenter,Beizhan Community,MinzhiStreet,LonghuaDistrict,ShenzhenChina 2025/11/27 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:AgentAuthorizationforFCCID:2BDJRCTU-301 I,theundersigned,herebyauthorize(ShenzhenAnbotekComplianceLaboratoryLimited.)toactonour behalfinallmattersrelatingtothisapplicationforequipmentcertification. Anyactcarriedoutby(ShenzhenAnbotekComplianceLaboratoryLimited.)shallhavethesameeffectas ourownandIacknowledgethatallresponsibilityforcomplyingwiththetermsandconditionsof certification,asspecifiedbyDERYCOMCERTIFICATIONSERVICES,INC.,stillresideswith(Shenzhen SeendaTechnologyCo.,Ltd.). WecertifythatwearenotsubjecttoadenialoffederalbenefitsthatincludesFCCbenefitspursuantto Section5301oftheAnti-DrugAbuseActof1988,21U.S.C.§862,andthatnopartytotheapplication,as definedin47CFR§1.2002(b),issubjecttoadenialoffederalbenefitsthatincludesFCCbenefits pursuanttothatsection. Sincerely, PrintedName:QiangYu Title:Manager Tel.:+86-18675513228 Fax:86-755-29113135 Email:[email protected]

ShenzhenSeendaTechnologyCo.,Ltd. #3402-3405,3410-3411,BuildingB,LonghuaDistrictDigitalInnovationCenter,Beizhan Community,MinzhiStreet,LonghuaDistrict,ShenzhenChina 11/27/2025 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:ConfidentialityRequestfor:FCCID:2BDJRCTU-301 PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestpermanent confidentialtreatmentoftheexhibitsaccompanyingthiscertificationapplicationasoutlinedbelow: BlockDiagram Schematics OperationalDescription Theaboveexhibitscontaintradesecretsand/orproprietaryinformationthatarenotpubliclyavailableand materialsthattheApplicanthasspentconsiderableeffortsindeveloping.Publicdisclosureofthesemay beharmfultotheApplicantandgiveanunfairadvantagetocompetitorsonthemarket. PursuanttoDA04-1705,theapplicantalsorequeststemporaryconfidentialtreatmentoftheexhibits outlinedbelowforaperiodof(upto180)daysfromthedateofequipmentauthorizationandpriorto marketingintheUnitedStatestopreventtheprematurereleaseofanysensitiveinformation.Applicantis awareoftheirresponsibilitytonotifyDERYCOMintheeventinformationregardingtheproductorthe productismadeavailabletothepublicbeforetherequestedperiodhasexpired.  UserManual InternalPhotos  ExternalPhotos TestSetupPhotos Sincerely, Title:Manager Address:#3402-3405,3410-3411,BuildingB,LonghuaDistrictDigitalInnovationCenter,Beizhan Community,MinzhiStreet,LonghuaDistrict,ShenzhenChina Tel.:+86-18675513228 Email:[email protected]

LabelLocationOnEUT Confirmtheuseofrealappearancephotosasreferences Label

RFEXPOSUREEVALUATION FCCID:2BDJRCTU-301 AccordingtoKDB447498D01MobileandPortableDevicesRFExposureProcedures andEquipmentAuthorizationPoliciesv06. AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeusedto evaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF)Radiationas specifiedin§1.1307(b): RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,using measurementsorcomputersimulation.WhenroutineSARevaluationisnotrequired, portabletransmitterswithoutputpowergreaterthantheapplicablelowthresholdrequire SARevaluationtoqualifyforTCBapproval. Channel (MHz) Maximum output power (dBm) Tuneup tolerance (dBm) MaxTuneUp Power(dBm) Distance (mm) Calculation results Limit Operating Mode 2402-1.37-1.37±1-0.37050.2853 GFSK2440-1.12-1.12 ±1 -0.12050.3043 2480-0.97-0.97±10.03050.3173 24034.654.65±15.65051.1393 GFSK24414.744.74 ±1 5.74051.1723 24804.854.85±15.85051.2113 Result:NoStandaloneSARtestisrequired.

Page 1 of 34 FCC Test Report Report No.:1812C50528412502 Applicant:Shenzhen Seenda Technology Co., Ltd. Address: #3402-3405,3410-3411,Building B,Longhua District Digital Innovation Center,Beizhan Community,Minzhi Street,Longhua District,Shenzhen China Product Name:Wireless Keyboard Report Date:2025-11-27 Shenzhen Anbotek Compliance Laboratory Limited #检测章# #资质章# Report No.:1812C50528412502Page 2 of 34 FCC ID: 2BDJRCTU-301 Contents 1. General Information...............................................................................................................................6 1.1. Client Information ........................................................................................................................6 1.2. Description of Device (EUT)........................................................................................................6 1.3. Auxiliary Equipment Used During Test .......................................................................................7 1.4. Operation channel list .................................................................................................................8 1.5. Description of Test Modes ..........................................................................................................8 1.6. Measurement Uncertainty ...........................................................................................................8 1.7. Additional Instructions .................................................................................................................9 1.8. Test Summary ...........................................................................................................................10 1.9. Description of Test Facility ........................................................................................................11 1.10. Disclaimer................................................................................................................................11 1.11. Test Equipment List ................................................................................................................12 2. Antenna requirement ...........................................................................................................................14 2.1. Conclusion.................................................................................................................................14 3. Conducted Emission at AC power line ................................................................................................15 3.1. EUT Operation ..........................................................................................................................15 3.2. Test Setup .................................................................................................................................15 3.3. Test Data...................................................................................................................................16 4. 20dB Bandwidth ..................................................................................................................................18 4.1. EUT Operation ..........................................................................................................................18 4.2. Test Setup .................................................................................................................................19 4.3. Test Data...................................................................................................................................19 5. Maximum Conducted Output Power ...................................................................................................20 5.1. EUT Operation ..........................................................................................................................20 5.2. Test Setup .................................................................................................................................20 5.3. Test Data...................................................................................................................................20 6. Channel Separation.............................................................................................................................21 6.1. EUT Operation ..........................................................................................................................21 6.2. Test Setup .................................................................................................................................21 6.3. Test Data...................................................................................................................................21 7. Number of Hopping Frequencies ........................................................................................................22 7.1. EUT Operation ..........................................................................................................................22 7.2. Test Setup .................................................................................................................................22 7.3. Test Data...................................................................................................................................22 8. Dwell Time...........................................................................................................................................23 8.1. EUT Operation ..........................................................................................................................24 8.2. Test Setup .................................................................................................................................24 8.3. Test Data...................................................................................................................................24 9. Emissions in non-restricted frequency bands...........…

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ReportNo.:1812C50528412502-01 Page 1 of 26 AppendixTestData ReportNo.:1812C50528412502-01TestSampleNo.:1-2-2 StartTestDate:2025-10-20FinishTestDate:2025-10-21 TestEngineer:Auditor: Temperature:26.7°CRelativeHumidity:60% Pressure:101kPa AppendixA:20dBBandwidth TestResult Test Mode Antenna Frequency [MHz] 20db EBW[MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict 2.4GAnt124032.3102401.8842404.194------ 2.4GAnt124412.2862439.9022442.188------ 2.4GAnt124802.2922478.8962481.188------ ReportNo.:1812C50528412502-01 Page 2 of 26 TestGraphs 2.4G-Ant1-2403 2.4G-Ant1-2441 ReportNo.:1812C50528412502-01 Page 3 of 26 2.4G-Ant1-2480 ReportNo.:1812C50528412502-01 Page 4 of 26 AppendixB:99%OccupiedBandwidth TestResult Test Mode Antenna Frequency [MHz] OCB[MHz]FL[MHz]FH[MHz]Limit[MHz]Verdict 2.4GAnt124032.23552401.87902404.1145------ 2.4GAnt124412.22342439.88132442.1047------ 2.4GAnt124802.23592478.88582481.1217------ ReportNo.:1812C50528412502-01 Page 5 of 26 TestGraphs 2.4G-Ant1-2403 2.4G-Ant1-2441 ReportNo.:1812C50528412502-01 Page 6 of 26 2.4G-Ant1-2480 ReportNo.:1812C50528412502-01 Page 7 of 26 AppendixC:MaximumConductedOutputPower TestResultPeak Test Mode AntennaFrequency[MHz] ConductedPeak Power[dBm] Conducted Limit[dBm] Verdict 2.4GAnt124034.65≤20.97PASS 2.4GAnt124414.74≤20.97PASS 2.4GAnt124804.85≤20.97PASS TestGraphs 2.4G-Ant1-2403-PASS 2.4G-Ant1-2441-PASS ReportNo.:1812C50528412502-01 Page 8 of 26 2.4G-Ant1-2480-PASS ReportNo.:1812C50528412502-01 Page 9 of 26 AppendixD:Carrierfrequencyseparation TestResult TestModeAntenna Frequency [MHz] Result [MHz] Limit[MHz]Verdict 2.4GANT1Hop1.992>1.540PASS ReportNo.:1812C50528412502-01 Page 10 of 26 TestGraphs 2.4G-Ant1-Hop-PASS ReportNo.:1812C50528412502-01 Page 11 of 26 AppendixE:DwellTime TestResult Test Mode Antenna Frequency [MHz] BurstWidth [ms] TotalHops [Num] Result [s] Limit [s] Verdict 2.4GAnt1Hop0.1221010.012≤0.4PASS ReportNo.:1812C50528412502-01 Page 12 of 26 TestGraphs 2.4G-Ant1-Hop-PASS ReportNo.:1812C50528412502-01 Page 13 of 26 AppendixF:NumberofHoppingChannel TestResult TestModeAntenna Frequency [MHz] Result [Num] Limit [Num] Verdict 2.4GAnt1Hop16≥15PASS ReportNo.:1812C50528412502-01 Page 14 of 26 TestGraphs 2.4G-Ant1-Hop-PASS ReportNo.:1812C50528412502-01 Page 15 of 26 AppendixG:ConductedBandedge TestResult Test Mode Antenna Ch. Name Frequency [MHz] Ref.Level [dBm] Result [dBm] Limit [dBm] Verdict 2.4GAnt1Low24033.92-50.32≤-16.09PASS 2.4GAnt1High24804.82-48.77≤-15.18PASS 2.4GAnt1LowHop4.14-48.92≤-15.86PASS 2.4GAnt1HighHop5.01-48.65≤-14.99PASS Remark:Regardingthespuriousemissionsfrom30MHzto26.5GHz,thecablelosshavebeensetinthe 'offset'oftheSpectrumAnalyzerduringthetest. ReportNo.:1812C50528412502-01 Page 16 of 26 TestGraphs 2.4G-Ant1-2403-PASS 2.4G-Ant1-2480-PASS ReportNo.:1812C50528412502-01 Page 17 of 26 2.4G-Ant1-Hop-PASS 2.4G-Ant1-Hop-PASS ReportNo.:1812C50528412502-01 Page 18 of 26 AppendixH:ConductedSpuriousEmission TestResult Test Mode AntennaFrequency[MHz] Freq.Range [MHz] Ref.Level [dBm] Result [dBm] Limit [dBm] Verdict 2.4GAnt124030~Reference4.774.77---PASS 2.4GAnt1240330~10004.77-67.86≤-15.23PASS 2.4GAnt124031000~265004.77-53.74≤-15.23PASS 2.4GAnt124410~Reference4.854.85---PASS 2.4GAnt1244130~10004.85-68.18≤-15.15PASS 2.4GAnt124411000~265004.85-46.69≤-15.15PASS 2.4GAnt124800~Reference5.025.02---PASS 2.4GAnt1248030~10005.02-67.67≤-14.98PASS 2.4GAnt124801000~265005.02-53.4≤-14.98PASS Remark:Regardingthespuriousemissionsfrom30MHzto26.5GHz,thecablelosshavebeensetinthe 'InputCorrection'oftheSpectrumAnalyzerduringthetest. ReportNo.:1812C50528412502-01 Page 19 of 26 TestGraphs 2.4G-Ant1-2403-0~Reference-PASS 2.4G-Ant1-2403-30~1000-PASS ReportNo.:1812C50528412502-01 Page 20 of 26 2.4G-Ant1-2403-1000~26500-PASS 2.4G-Ant1-2441-0~Reference-PASS ReportNo.:1812C50528412502-01 Page 21 of 26 2.4G-Ant1-2441-30~1000-PASS 2.4G-Ant1-2441-1000~26500-PASS ReportNo.:1812C50528412502-01 Page 22 of 26 2.4G-Ant1-2480-0~Reference-PASS 2.4G-Ant1-2480-30~1000-PASS ReportNo.:1812C50528412502-01 Page 23 of 26 2.4G-Ant1-2480-1000~26500-PASS ReportNo.:1812C50528412502-01 Page 24 of 26 AppendixI:DutyCycle TestResult TestModeAntennaFrequency[MHz] ONTime [ms] Period [ms] DutyCycle [%] DutyCycle Factor[dB] 2.4GAnt124030.124.072.9515.30 2.4GAnt124410.134.093.1814.98 2.4GAnt124800.133.943.3014.81 ReportNo.:1812C50528412502-01 Page 25 of 26 TestGraphs NTNV-2.4G-Ant1-2403 NTNV-2.4G-Ant1-2441 ReportNo.:1812C50528412502-01 Page 26 of 26 NTNV-2.4G-Ant1-2480 ---End---

AntennaSpecification Specifications Summa ry ITEMSPEC. CenterFrequency2402MHz 2441MHz 2480MHz 2. 34 dBi 2.07dBi 1. 45 dBi MAX.GAIN2. 34 dB i PolarizationHorizontal AzimuthBeamPatternOmni-directional Impedance50 Antenna Length3.1c m AntennaPhoto& Length (mm) TestAddress 16 Tzu Chian g Ro ad , Hsinchu Industrial Di stri ct Hsinchu Hsi en 303, Taiwa n TestDate2009-0 4-1 4 Tes t Instrument vect or networkanalyzer- R&SZVB20 Test company name : Advanced Ceramic X Corp. www. acxc.com.tw 1. Mainante nna : 240 2 MH z 1.1 Horizonta l Frequency(MHZ):24 02AntennaPolarity:Horiz ontal MaximumValue(dBi):2. 34 Average Gain(dBi):-2 .48 Mi ni mum Gain(dBi):-55.18 1.2 Vertical Frequency(MHZ):24 02AntennaPolarity:Vertical MaximumValue(dBi):-4. 51 Average Gain(dBi):-8 .98 Mi ni mum Gain(dBi):-6 2. 3 2. Mainante nna : 244 1 MH z 2.1 Horizonta l Frequency(MHZ):24 41AntennaPolarity:Horiz ontal MaximumValue (dBi):2.07 AverageGain(dBi):-2.54 Mi ni mum Gain(dBi):-66 .98 2.2 Vertical Frequency(MHZ):24 41AntennaPolarity:Vertical MaximumValue(dBi):-4. 29 Average Gain(dBi):-8.81 Mi ni mum Gain(dBi):-51.4 2. Mainante nna : 248 0 MHz 2.1 Horizonta l Frequency(MHZ):2480AntennaPolarity:Horiz ontal MaximumValue(dBi):1.45 Average Gain(dBi):-3.34 Mi ni mum Gain(dBi):-53.4 2.2 Vertical Frequency(MHZ):2480AntennaPolarity:Vertical MaximumValue(dBi):-4. 95 Average Gain(dBi):-9.06 Mi ni mum Gain(dBi):-6 0. 00