2BS9V-Z578night sight

Rev1/26/2023 (ShenzhenZhongtengDigitalTechnologyCo.,Ltd) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2025-12-22 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2BS9V-Z578 (ShenzhenZhongtengDigitalTechnologyCo.,Ltd)certifiesthattheequipmentforwhichauthorization issoughtisnot“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuantto section2.903oftheFCCrules. (ShenzhenZhongtengDigitalTechnologyCo.,Ltd)certifiesthattheequipmentforwhichauthorization issoughtdoesnotincludecybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab, Inc.oranyofitssuccessorsandassignees,includingequipmentwithintegratedKasperskyLab,Inc.(or anyofitssuccessorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB 986446D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (WANCHANNGHUANG) Rev1/26/2023 (ShenzhenZhongtengDigitalTechnologyCo.,Ltd) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2025-12-22 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2BS9V-Z578 (ShenzhenZhongtengDigitalTechnologyCo.,Ltd)certifiesthat,asofthedateofthefilingofthe application,theapplicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofits subsidiariesoraffiliates)asanentityproducing“covered”equipment. Sincerely, (WANCHANNGHUANG)

红点信息科技（深圳）有限公司 REDDOTINFORMATIONTECHNOIOGYSHENZHENCO,LTD 产品规格书 RODUCTSPECIFICATION 客户 Customer 客户编码 Customers part number 产品料号 ProductMaterialCode HD.P-47-8-70-IPEX 工作频段 Working Band 2400MHz-2500MHz 发行日期 Issue Date 2025-11- 2 2 发行版本 ReleaseVersion A1 作者 Author Zou Yangchen 红点信息科技（深圳)有限公司REDDOTINFORMATIONTECHNOIOGYSHENZHENCO,LTD Address:No. 302, Building 181, Renmin Road, Xiqiong Community, Fucheng Subdistrict, Longhua District, Shenzhen City 红点信息科技（深圳)有限公司REDDOTINFORMATIONTECHNOIOGYSHENZHENCO,LTD Contents Antennaintroducing .................................................. P3 Antennausefularea .................................................. P4 Antennasize ................................................................ P5 Antennaelectricalproperties ..................................... P6 AntennaS-parameter ................................................. P7 Antennachamberstructure ....................................... P8 Antennatotal gain and efficiency ........................... P9 RadiationPatternE_PLANE ................................... P11 RadiationPatternH_PLANE ................................... P15 红点信息科技（深圳)有限公司REDDOTINFORMATIONTECHNOIOGYSHENZHENCO,LTD Antennaintroducing Madeby copperpipe material, workin 2.4~2.5. Designby dipoleantennatheory. Highgain,Highefficiency,Goodport matching.  Makewirelessequipmentsbetterco mmunication. 红点信息科技（深圳)有限公司REDDOTINFORMATIONTECHNOIOGYSHENZHENCO,LTD Antennausefularea  Pads,note -book , readerand so on . IP camera, set top box and so on . DVDplayer,TV and consumer electronics. 红点信息科技（深圳)有限公司REDDOTINFORMATIONTECHNOIOGYSHENZHENCO,LTD Antenna size 120.5mm*8.2mm*0.75mm The cable is RF-Φ1.13 cable with IPEX and length is 7 0 mm Antenna type: FPC Antenna 红点信息科技（深圳)有限公司REDDOTINFORMATIONTECHNOIOGYSHENZHENCO,LTD Antennaelectricalproperties Frequency Impedance V.S.W.R Returnloss Radiation Gain(Peak) Polarization AdmittedPower Connector Efficiency Cable 2.4~2.5 50ohmnominal ≤2.0 ≤-10dB Omni-directional 2.4G:4.2dB Linear 5W IPEX 2.4G:68%/5G:65% RF Φ1.13 cableand lengthis 7 0mm 红点信息科技（深圳)有限公司REDDOTINFORMATIONTECHNOIOGYSHENZHENCO,LTD AntennaS-parameter 红点信息科技（深圳)有限公司REDDOTINFORMATIONTECHNOIOGYSHENZHENCO,LTD Antennachamberstructure horn antenna motor RF cableRF cable switch controllineRF cable test computer networkanalyzer CMW500 ethernetcable RF cable 红点信息科技（深圳)有限公司REDDOTINFORMATIONTECHNOIOGYSHENZHENCO,LTD Antennatotal gain and ef ficiency Freq. ( MHz)Gain(dBi)Efficiency(% ) PCB_ANT 24003.2565% 24504.068% 2500 4.2 67% Z ZX θ(ZX plane) hornant Y Y Φ(XY plane) X 红点信息科技（深圳)有限公司REDDOTINFORMATIONTECHNOIOGYSHENZHENCO,LTD RadiationPatternE_PLANE Freq. ( MHz)Gain(dB ) PCB_ANT 24504.0 Z X Y hornant Φ=0 。 θ=0~360 。 Far fieldE1_ PLANE Φ=0。, ZX plane 红点信息科技（深圳)有限公司REDDOTINFORMATIONTECHNOIOGYSHENZHENCO,LTD Freq. ( MHz)Gain(dB ) PCB_ANT 24504.0 Z X Y hornant Φ=90。 θ=0~360 。 Far fieldE2_ PLANE Φ=90。, ZY plane 红点信息科技（深圳)有限公司REDDOTINFORMATIONTECHNOIOGYSHENZHENCO,LTD MHz) 0 θ=90。 X Z Y Φ=0~360 。

ShenzhenZhongtengDigitalTechnologyCo.,Ltd Date：2025-12-22 ProductModelNumber:Z578,cnvpro FCCID：2BS9V-Z578 Towhomitmayconcern Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatQAILaboratoriesLtd.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyQAILaboratoriesLtd.onour behalfshallhavethesameeffectasactsofourown. By: ContactListedonFCCWesbite Title:Manager Email:[email protected] Telephone:13902476912 Onbehalfof:ShenzhenZhongtengDigitalTechnologyCo.,Ltd

ShenzhenZhongtengDigitalTechnologyCo.,Ltd OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:December22,2025 Subject;RequestforConfidentiality FCCID:2BS9V-Z578 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure SoftwareSecurityRequirementsforUNIIdevices Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:WANCHANNGHUANG Title:Manager

ShenzhenZhongtengDigitalTechnologyCo.,Ltd ProductSimilarityDeclaration Productname:nightsight Modelname:Z578,cnvpro FCCID:2BS9V-Z578 We(ShenzhenZhongtengDigitalTechnologyCo.,Ltd)hereby statethatallthemodelsareelectricalidenticalincludingthesame softwareparameterandhardwaredesign(i.e.,circuitdesign,PCB Layout,RFmodule/circuit,antennatype(s)andantennalocation, componentsonPCB,etc.,),samemechanicalstructureand design(includingproductenclosure,materials,etc.,),theonly differenceisthemodelnameddifferent. Signature: Name:WANCHANNGHUANG Title:Manager Place:R&DBuilding,No.421HuanggeRoad,TiananDigital,LonggangDistrict,ShenZhen Date:2025-12-24

Size:30*20mm nightsight ModelNo.：Z578 FCCID:2BS9V-Z578

Page 1 of4 MAXLABTestingCo.,Ltd.ReportNo.:MAX25110103P01-R01RF RFTESTREPORT ReportReferenceNo........................:MAX25110103P01-R01RF FCCID.................................................:2BS9V-Z578 Compiledby (position+printedname+signature) .. : Engineer/CindyZheng Supervisedby (position+printedname+signature)..: Manager/HaleyWen Approvedby (position+printedname+signature)..: RFManager/VivianJiang Dateofissue ......................................... :December13,2025 TestingLaboratoryName ................ : MAXLABTestingCo.,Ltd. Address ................................................. : 1/F,BuildingB,XinshidaiGRPark,ShiyanStreet,Bao'anDistrict, Shenzhen,Guangdong,518052,People’sRepublicofChina Applicant’sname...............................: ShenzhenZhongtengDigitalTechnologyCo.,Ltd Address.................................................: R&DBuilding,No.421HuanggeRoad,TiananDigital,Longgang District,ShenZhen Testspecification..............................: Standard................................................:KDB447498D01GeneralRFExposureGuidancev06 MAXLABTestingCo.,Ltd..Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe MAXLABTestingCo.,Ltd..isacknowledgedascopyrightownerandsourceofthematerial.MAXLAB TestingCo.,Ltd..takesnoresponsibilityforandwillnotassumeliabilityfordamagesresultingfromthe reader'sinterpretationofthereproducedmaterialduetoitsplacementandcontext. Equipmentdescription.....................:nightsight TradeMark ............................................ : N/A Manufacturer.........................................: ShenzhenZhongtengDigitalTechnologyCo.,Ltd Model/Typereference ......................... : Z578 ListedModels ...................................... : cnvpro Modulation ........................................... :GFSK Frequency..............................................From2402MHzto2480MHz Rating.....................................................:DC3.7VFromBattery Result.....................................................:PASS Page 2 of4 MAXLABTestingCo.,Ltd.ReportNo.:MAX25110103P01-R01RF RFEXPOSUREEVALUATIONMETHOD AccordingtoKDB447498D01GeneralRFExposureGuidancev06,Unlessspecificallyrequiredbythe publishedRFexposureKDBprocedures,standalone1-gheadorbodyand10-gextremitySARevaluation forgeneralpopulationexposureconditions,bymeasurementornumericalsimulation,isnotrequiredwhen thecorrespondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtestexclusion thresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance,mm)]·[√f (GHz) ] ≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeusedto evaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF)Radiation asspecifiedin§1.1307(b) EUTSpecification Frequencyband (Operating) WLAN:2.412GHz~2.462GHz WLAN:5.150GHz~5.250GHz WLAN:5.725GHz~5.850GHz OthersBT:2402-2480MHz DevicecategoryPortable(<20cmseparation) Mobile(>20cmseparation) Others ExposureclassificationOccupational/Controlledexposure(S=5mW/cm2) GeneralPopulation/Uncontrolledexposure(S=1mW/cm 2 ) 3.0for1-gSARand≤7.5for10-gextremitySAR AntennadiversitySingleantenna Multipleantennas Txdiversity Rxdiversity Tx/Rxdiversity Max.outputpower6.652dBm(0.00463W) Antennagain(Max)4.2dBi EvaluationappliedMPEEvaluation SAREvaluation Page 3 of4 MAXLABTestingCo.,Ltd.ReportNo.:MAX25110103P01-R01RF RFEXPOSUREEVALUATIONMETHOD SARTestExclusionThresholdsfor100MHz – 6GHzand ≤ 50mm ApproximateSARTestExclusionPowerThresholdsatSelectedFrequenciesandTestSeparation DistancesareillustratedinthefollowingTable. The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances ≤ 50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50 mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtest exclusion. Page 4 of4 MAXLABTestingCo.,Ltd.ReportNo.:MAX25110103P01-R01RF Maximummeasuredtransmitterpower. BLE Operating Mode Frequency Measur ed Power max. power Antenna Gain min.test separation distance [√f(GHz)] ResultLimit (MHz)(dBm)(mW)(dBi)(mm) GFSK 24026.6524.634.251.5501.43393 24406.4214.394.251.5621.37033 24806.2384.214.251.5751.32453 The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)] ThetestResultislessthan3.0for1-gSARand≤7.5for10-gextremitySAR. Conclusion:NoSARisrequired.

Page 1 of31 MAXLABTestingCo.,Ltd.ReportNo.:MAX25110103P01-R01 FCCPART15SUBPARTCTESTREPORT FCCPART15.247 ReportReferenceNo........................:MAX25110103P01-R01 FCCID. ................................................ :2BS9V-Z578 Compiledby (position+printedname+signature)..: Engineer/CindyZheng Supervisedby (position+printedname+signature) .. : Manager/HaleyWen Approvedby (position+printedname+signature)..: RFManager/VivianJiang Dateofissue ......................................... :December13,2025 TestingLaboratoryName ................ : MAXLABTestingCo.,Ltd. Address ................................................. : 1/F,BuildingB,XinshidaiGRPark,ShiyanStreet,Bao'anDistrict, Shenzhen,Guangdong,518052,People’sRepublicofChina Applicant’sname ............................... : ShenzhenZhongtengDigitalTechnologyCo.,Ltd Address.................................................: R&DBuilding,No.421HuanggeRoad,TiananDigital,Longgang District,ShenZhen Testspecification..............................: Standard................................................:FCCPart15.247 MAXLABTestingCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe MAXLABTestingCo.,Ltd.isacknowledgedascopyrightownerandsourceofthematerial.MAXLAB TestingCo.,Ltd.takesnoresponsibilityforandwillnotassumeliabilityfordamagesresultingfromthe reader'sinterpretationofthereproducedmaterialduetoitsplacementandcontext. Equipmentdescription.....................:nightsight TradeMark ............................................ : N/A Manufacturer.........................................: ShenzhenZhongtengDigitalTechnologyCo.,Ltd Model/Typereference ......................... : Z578 ListedModels ...................................... : cnvpro Modulation ........................................... :GFSK Frequency..............................................From2402MHzto2480MHz Rating.....................................................:DC3.7VFromBatteryorDC5VbyUSBport Result ..................................................... :PASS Page 2 of31 MAXLABTestingCo.,Ltd.ReportNo.:MAX25110103P01-R01 TESTREPORT EquipmentunderTest:nightsight Model/Type:Z578 ListedModels:cnvpro ModelDeclaration:Allthemodelsareelectricalidenticalincludingthesamesoftware parameterandhardwaredesign,samemechanicalstructureand design,theonlydifferenceisthemodelnameddifferent. Applicant : ShenzhenZhongtengDigitalTechnologyCo.,Ltd Address: R&DBuilding,No.421HuanggeRoad,TiananDigital,Longgang District,ShenZhen Manufacturer : ShenzhenZhongtengDigitalTechnologyCo.,Ltd Address: R&DBuilding,No.421HuanggeRoad,TiananDigital,Longgang District,ShenZhen TestResult:PASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetest laboratory. Page 3 of31 MAXLABTestingCo.,Ltd.ReportNo.:MAX25110103P01-R01 Contents 1TESTSTANDARDS...................................................................................................................4 2SUMMARY......................................................................................................................................5 2.1GeneralRemarks5 2.2ProductDescription5 2.3EquipmentUnderTest5 2.4ShortdescriptionoftheEquipmentunderTest(EUT)5 2.5EUToperationmode6 2.6BlockDiagramofTestSetup6 2.7RelatedSubmittal(s)/Grant(s)6 2.8Modifications6 3TESTENVIRONMENT.............................................................................................................7 3.1Addressofthetestlaboratory7 3.2TestFacility7 3.3Environmentalconditions7 3.4Summaryofmeasurementresults8 3.5Statementofthemeasurementuncertainty8 3.6EquipmentsUsedduringtheTest9 4TESTCONDITIONSANDRESULTS............................................................................11 4.1ACPowerConductedEmission11 4.2RadiatedEmissionsandBandEdge14 4.3MaximumPeakOutputPower21 4.4PowerSpectralDensity22 4.56dBBandwidth24 4.6Out-of-bandEmissions26 4.7AntennaRequirement29 5TESTSETUPPHOTOSOFTHEEUT..........................................................................30 6PHOTOSOFTHEEUT.........................................................................................................31 Page 4 of31 MAXLABTestingCo.,Ltd.ReportNo.:MAX25110103P01-R01 1TESTSTANDARDS Thetestswereperformedaccordingtofollowingstandards: FCCRulesPart15.247:FrequencyHopping,DirectSpreadSpectrumandHybridSystemsthatarein operationwithinthebandsof902-928MHz,2400-2483.5MHz,and5725-5850MHz. ANSIC63.10-2020:AmericanNationalStandardforTestingUnlicensedWirelessDevices KDB558074D01V05r02:GuidanceforPerformingComplianceMeasurementsonDigitalTransmission Systems(DTS)OperatingUnder§15.247 Page 5 of31 MAXLABTestingCo.,Ltd.ReportNo.:MAX25110103P01-R01 2SUMMARY 2.1GeneralRemarks Dateofreceiptoftestsample:November26,2025 Testingcommencedon:November26,2025 Testingconcludedon: December13,2025 2.2ProductDescription ProductDescription:nightsight Model/Typereference:Z578 Powersupply:DC3.7VFromBatteryorDC5VbyUSBport HardwareVersion:A1 SoftwareVersion:/ Adapterinformation (Auxiliarytestsuppliedby testingLab） Model:EP-TA20CBC Input:AC100-240V50/60Hz Output:DC5V2A FirmwareVersion:EPTA5.14.2 Manufacture:HuizhouDongyangYienbiElectronicsCo.,Ltd TestingsampleID： MAX25110103P01-R01-1#(Engineersample), MAX25110103P01-R01-2#(Normalsample) BluetoothBLE Supportedtype:BluetoothlowEnergy Modulation:GFSK Operationfrequency: 2402MHzto2480MHz Channelnumber:40 Channelseparation: 2MHz Antennatype: FPCAntenna Antennagain:4.2dBi 2.3EquipmentUnderTest Powersupplysystemutilised Powersupplyvoltage: ○ 230V/50Hz ○ 120V/60Hz ○ 12VDC ○ 24VDC ● Other(specifiedinblankbelow) DC3.7VfrombatteryorDC5.0VfromUSBPort 2.4ShortdescriptionoftheEquipmentunderTest(EUT) Thisisanightsight. Formoredetails,refertotheuser’smanualoftheEUT. Page 6 of31 MAXLABTestingCo.,Ltd.ReportNo.:MAX25110103P01-R01 2.5EUToperationmode TheApplicantprovidescommunicationtoolssoftware(Engineermode)tocontroltheEUTforstayingin continuoustransmitting(DutyCyclemoretha…

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FCCID：2BS9V-Z578 FCCID：2BS9V-Z578