2A36Z-WRENTREKIP67 Waterproof Wireless Loudspeaker

FederalCommunicationsCommission(FCC)Statement.Thisdevicecomplieswithpart15ofthe FCCRules.Operationissubjecttothefollowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)thisdevicemustacceptanyinterferencereceived, includinginterferencethatmaycauseundesiredoperation.Note:Thisequipmenthasbeen testedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuanttopart15ofthe FCCRules.TheselimitsaredesignedtoprovideReasonableprotectionagainstharmful interferenceinaresidentialinstallation.Thisequipmentgenerates,usesandcanradiateradio frequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructions,maycause harmfulinterferencetoradiocommunications.However,thereisnoguaranteethatinterference willnotoccurinaparticularinstallation.Ifthisequipmentdoescauseharmfulinterferenceto radioortelevisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,the userisencouragedtotrytocorrecttheinterferencebyoneormoreofthefollowing measures: •Reorientorrelocatethereceivingantenna. •Increasetheseparationbetweentheequipmentandreceiver. •Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiveris connected. •Consultthedealeroranexperiencedradio/TVtechnicianforhelp. Warning:ChangesormodificationsmadetothisdevicenotexpresslyapprovedbyNabfly,Inc. mayvoidtheFCCauthorizationtooperatethisdevice.Note:Themanufacturerisnotresponsible foranyradioorTVinterferencecausedbyunauthorizedmodificationstothisequipment.Such modificationscouldvoidtheuser’sauthoritytooperatetheequipment. RFexposurestatement: ThisdevicecomplieswithFCCRFradiationexposurelimitssetforthforanuncontrolled environment.Thedeviceisinstalledandoperatedwithoutrestriction.

Nabfly, Inc. Officeof EngineeringTechnology FederalCommunicationsCommission 7435 OaklandMills Road Columbia,MD 21046 USA Date: December15, 2022 Subject;Requestfor Confidentiality FCC ID: 2A36Z-WRENTREK To WhomIt May Concern, Pursuantto the provisionsof the Commission’s rules Title 47 Sections§0.457 and §0.459,we are requestingthe Commissionto withholdthe followingattachment(s)as confidential documentsfrom publicdisclosureindefinitely. Thesedocumentscontaindetailedsystemand equipmentdescriptionsand are consideredas proprietaryinformationin operationof the equipment.The publicdisclosureof these documentsmight be harmfulto our companyand wouldgive competitorsan unfair advantage in the market. SchematicDiagram Block Diagram Parts List OperationalDescription Tune-upProcedure SoftwareSecurityRequirementsfor UNII devices In additionalto abovementioneddocuments,in order to complywith the marketingregulations in Title 47 CFR §2.803 and the importationrules in Title 47 CFR §2.1204,while ensuringthat businesssensitiveinformationremainsconfidentialuntil the actualmarketingof newly authorizeddevices,we requestShort Term Confidentialityof the followingattachment(s); ExternalPhotos Test SetupPhotos InternalPhotos User Manual For 45 days, pursuantto PublicNoticeDA 04-1705. OR For 180 days pursuantto KDB 726920D01. It is our understandingthat all measurementtest reports,FCC ID label formatand correspondenceduringthe certificationreviewprocesscannotbe grantedas confidential documentsand this informationwill be availablefor publicreviewonce the grant of equipment authorizationis issued. Sincerely, Signature: Name:StevenJaffe Title:CEO

EffectiveDate:April2, 2020QSF7.6.4-8– AgentAuthorizationLetterTemplatePage1 of 1 RevisionDate:Revision:0 Nabfly,Inc. 151 W. 25th St. Floor 5, New York, NY 10001USA Date：2022/12/15 ProductModelNumber:Wren Trek Mini FCC ID：2A36Z-WRENTREK To whomit may concern, Re: ProductCertificationRepresentativeAuthorizationLetter We authorizeQAI LaboratoriesLtd. 3980 North FraserWay, BurnabyB.C. CanadaV5J 5K5 to act on our behalfon all mattersconcerningthe abovenamedequipment. This shall includethe following: Testing Approvalapplicationsand procedures We declare that ORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own. By: ContactListedon FCC Wesbite Title: CEO Email:[email protected] Telephone:(602) 809 1083 On behalfof: Nabfly,Inc.

Inverted F Antenna Specification Summary ITEM ANT SPEC 2.4G ANTModel Name Horizontal Vertical 2400MHz 2450MHz 2500MHz 2400MHz 2450MHz 2500MHz Center Frequency -1.73 -0.84 -0.68 -6.15 -3.70 -2.32 -0.68MAX. Gain Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm 38.20mmAntenna Length Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.73178 -30.0815 -8.48713 2450 -0.845801 -38.5605 -7.88012 2500 -0.685586 -24.0318 -6.79139 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -6.1530 -24.1420 -13.0295 2450 -3.7054 -26.5836 -10.6700 2500 -2.32122 -30.4301 -9.70536 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

FCCID:2A36Z-WRENTREKPage 1 of 3 ReportNo.:CTL2210191011-WF ExternalPhotosofEUT FCCID:2A36Z-WRENTREKPage 2 of 3 ReportNo.:CTL2210191011-WF FCCID:2A36Z-WRENTREKPage 3 of 3 ReportNo.:CTL2210191011-WF

FCCID:2A36Z-WRENTREKPage 1 of 1 ReportNo.:CTL2210191011-WF FCCIDLabelInformation Labellocation: ProductName:IP67WaterproofWirelessLoudspeaker Model:WrenTrekMini FCCID:2A36Z-WRENTREK

FCCID:2A36Z-WRENTREKPage 1 of 2 ReportNo.:CTL2210191011-WF InternalPhotosofEUT BT ANTENNA FCCID:2A36Z-WRENTREKPage 2 of 2 ReportNo.:CTL2210191011-WF

FCCID:2A36Z-WRENTREKPage 1 of 1 ReportNo.:CTL2210191011-WF RFExposureLetter Accordingto447498D01GeneralRFExposureGuidancev05The1 ‐ gand10 ‐ g SARtest exclusionthresholdsfor100MHzto6GHzattestseparationdistances ≤ 50mm aredeterminedby:[(max.powerofchannel,includingtune ‐ uptolerance,mW)/(min. testseparationdistance,mm)] · [ √ f(GHz)] ≤ 3.0for1 ‐ gSARand ≤ 7.5for10 ‐ gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison BT pt=-10.24dBm=0.09mWat2441MHz So(0.09mW/5mm)x √ 2.441GHz=0.0296<3 ThenSARevaluationisnotrequired

ShenzhenCTLTestingTechnologyCo.,Ltd. Tel:+86-755-89486194E-mail:[email protected] TESTREPORT FCCPART15.247 ReportReferenceNo.:CTL2210191011-WF Compiledby: (position+printedname+signature) HappyGuo (Fileadministrators) Testedby: (position+printedname+signature) GrayGao (TestEngineer) Approvedby: (position+printedname+signature) IvanXie (Manager) ProductName.................................: IP67WaterproofWirelessLoudspeaker Model/Typereference .................... :WrenTrekMini ListModel(s)....................................:N/A TradeMark.......................................: Wren FCCID ............................................... : 2A36Z-WRENTREK Applicant’sname...........................: Nabfly,Inc. Addressofapplicant ..................... : 151W.25thSt.Floor5,NewYork,NY10001USA TestFirm ........................................... : ShenzhenCTLTestingTechnologyCo.,Ltd. AddressofTestFirm.....................: Floor1-A,BaishaTechnologyPark,No.3011,ShahexiRoad, NanshanDistrict,Shenzhen,China518055 Testspecification ........................... : Standard............................................:FCCPart15.247:Operationwithinthebands902-928MHz, 2400-2483.5MHzand5725-5850MHz. TRFOriginator .................................. : ShenzhenCTLTestingTechnologyCo.,Ltd. MasterTRF.......................................:Dated2011-01 Dateofreceiptoftestitem..........: Nov.23,2022 DateofTestDate ............................ : Nov.23,2022-Dec.06,2022 DateofIssue....................................: Dec.13,2022 Result ................................................ : Pass ShenzhenCTLTestingTechnologyCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenCTLTestingTechnologyCo.,Ltd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenCTLTestingTechnologyCo.,Ltd.takesnoresponsibilityforandwillnotassume liabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoits placementandcontext. V1.0Page2of37ReportNo.:CTL2210191011-WF TESTREPORT TestReportNo.:CTL2210191011-WF Dec.13,2022 Dateofissue EquipmentunderTest: IP67WaterproofWirelessLoudspeaker SampleNo:CTL221019101-1-S002 Model/Type:WrenTrekMini ListedModels:N/A Applicant: Nabfly,Inc. Address:151W.25thSt.Floor5,NewYork,NY10001USA Manufacturer: ShenzhenRockaudioTechnologyCo.,Ltd. Address:3rdFloor,BuildingA,GuangshengdeIndustrialPark, Fuyong,BaoanDistrict,Shenzhen,China TestresultPass* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedpage5. Thetestresultspresentedinthisreportrelateonlytotheobjecttested. Thisreportshallnotbereproduced,exceptinfull,withoutthewrittenapprovaloftheissuingtesting laboratory. V1.0Page3of37ReportNo.:CTL2210191011-WF **ModifiedHistory** RevisionsDescriptionIssuedDataReportNo.Remark Version1.0InitialTestReportRelease2022-12-13CTL2210191011-WFTracyQi V1.0Page4of37ReportNo.:CTL2210191011-WF TableofContentsPage 1.SUMMARY.......................................................................................................................................................................5 1.1.TESTSTANDARDS............................................................................................................................................................5 1.2.TESTDESCRIPTION...............................................................................................................................................................5 1.3.TESTFACILITY.....................................................................................................................................................................6 1.4.STATEMENTOFTHEMEASUREMENTUNCERTAINTY.....................................................................................................................6 2.GENERALINFORMATION.................................................................................................................................................8 2.1.ENVIRONMENTALCONDITIONS...............................................................................................................................................8 2.2.GENERALDESCRIPTIONOFEUT.............................................................................................................................................8 2.3.DESCRIPTIONOFTESTMODESANDTESTFREQUENCY................................................................................................................9 2.4.EQUIPMENTSUSEDDURINGTHETEST...................................................................................................................................10 2.5.RELATEDSUBMITTAL(S)/GRANT(S)....................................................................................................................................10 2.6.MODIFICATIONS................................................................................................................................................................10 3.TESTCONDITIONSANDRESULTS...................................................................................................................................11 3.1.CONDUCTEDEMISSIONSTEST..............................................................................................................................................11 3.2.RADIATEDEMISSIONSANDBANDEDGE.................................................................................................................................14 3.3.MAXIMUMPEAKOUTPUTPOWER.......................................................................................................................................24 3.4.20DBBANDWIDTH............................................................................................................................................................25 3.5.FREQUENCYSEPARATION....................................................................................................................................................26 3.6.NUMBER…

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ShenzhenCTLTestingTechnologyCo.,Ltd. Tel:+86-755-89486194E-mail:[email protected] 1.Bandwidth 1.1OBW 1.1.1TestResult Mode TX Type Frequency (MHz) Packet Type ANT 99%OccupiedBandwidth(MHz) Verdict Result GFSKSISO 2402DH510.849Pass 2441DH510.851Pass 2480DH510.852Pass Pi/4DQPSKSISO 24022DH511.164Pass 24412DH511.166Pass 24802DH511.165Pass 8DPSKSISO 24023DH511.176Pass 24413DH511.175Pass 24803DH511.178Pass V1.0Page2of53ReportNo.:CTL2210191011-WF 1.1.2TestGraph GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV V1.0Page3of53ReportNo.:CTL2210191011-WF GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV V1.0Page4of53ReportNo.:CTL2210191011-WF Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV V1.0Page5of53ReportNo.:CTL2210191011-WF 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV V1.0Page6of53ReportNo.:CTL2210191011-WF 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV V1.0Page7of53ReportNo.:CTL2210191011-WF 1.220dBBW 1.2.1TestResult Mode TX Type Frequency (MHz) Packet Type ANT 20dBBandwidth(MHz) Verdict Result GFSKSISO 2402DH510.953Pass 2441DH510.956Pass 2480DH510.956Pass Pi/4DQPSKSISO 24022DH511.321Pass 24412DH511.284Pass 24802DH511.286Pass 8DPSKSISO 24023DH511.308Pass 24413DH511.310Pass 24803DH511.310Pass V1.0Page8of53ReportNo.:CTL2210191011-WF 1.2.2TestGraph GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV V1.0Page9of53ReportNo.:CTL2210191011-WF GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV V1.0Page10of53ReportNo.:CTL2210191011-WF Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV V1.0Page11of53ReportNo.:CTL2210191011-WF 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV V1.0Page12of53ReportNo.:CTL2210191011-WF 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV V1.0Page13of53ReportNo.:CTL2210191011-WF 2.MaximumConductedOutputPower 2.1Power 2.1.1TestResult Mode TX Type Frequency (MHz) Packet Type MaximumPeakConductedOutputPower(dBm) Verdict ANT1Limit GFSKSISO 2402DH5-12.06<=30Pass 2441DH5-11.39<=30Pass 2480DH5-11.76<=30Pass Pi/4DQPSKSISO 24022DH5-11.13<=20.97Pass 24412DH5-10.47<=20.97Pass 24802DH5-10.86<=20.97Pass 8DPSKSISO 24023DH5-10.89<=20.97Pass 24413DH5-10.24<=20.97Pass 24803DH5-10.63<=20.97Pass Note1:AntennaGain:Ant1:-0.68dBi; V1.0Page14of53ReportNo.:CTL2210191011-WF 2.1.2TestGraph GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV V1.0Page15of53ReportNo.:CTL2210191011-WF GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV V1.0Page16of53ReportNo.:CTL2210191011-WF Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV V1.0Page17of53ReportNo.:CTL2210191011-WF 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV V1.0Page18of53ReportNo.:CTL2210191011-WF 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV V1.0Page19of53ReportNo.:CTL2210191011-WF 3.CarrierFrequencySeparation 3.1Ant1 3.1.1TestResult Ant1 Mode TX Type Frequency (MHz) Packet Type ChannelSeparation (MHz) 20dBBandwidth (MHz) Limit (MHz) Verdict GFSKSISOHOPPDH50.9900.956>=0.956Pass Pi/4DQPSKSISOHOPP2DH51.0031.321>=0.881Pass 8DPSKSISOHOPP3DH50.9941.310>=0.873Pass V1.0Page20of53ReportNo.:CTL2210191011-WF 3.1.2TestGraph GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV V1.0Page21of53ReportNo.:CTL2210191011-WF 8DPSK_3DH5_HOPP_Ant1_NTNV V1.0Page22of53ReportNo.:CTL2210191011-WF 4.NumberofHoppingFrequencies 4.1HoppNum 4.1.1TestResult Mode TX Type Frequency (MHz) Packet Type NumofHoppingFrequencies Verdict ANT1Limit GFSKSISOHOPPDH579>=15Pass Pi/4DQPSKSISOHOPP2DH579>=15Pass 8DPSKSISOHOPP3DH579>=15Pass V1.0Page23of53ReportNo.:CTL2210191011-WF 4.1.2TestGraph GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV V1.0Page24of53ReportNo.:CTL2210191011-WF 8DPSK_3DH5_HOPP_Ant1_NTNV V1.0Page25of53ReportNo.:CTL2210191011-WF 5.TimeofOccupancy(DwellTime) 5.1Ant1 5.1.1TestResult Ant1 Mode TX Type Frequency (MHz) Packet Type Durationof SinglePulse(ms) Observation Period(s) NumofPulsein ObservationPeriod Dwell Time(ms) Limit (ms) Verdict GFSKSISOHOPP DH10.38231.600318121.476<=400Pass DH31.64031.600164268.960<=400Pass DH52.88831.600112323.456<=400Pass Pi/4DQPSKSISOHOPP 2DH10.39031.600320124.800<=400Pass 2DH31.64231.600160262.720<=400Pass 2DH52.89631.600115333.040<=400Pass 8DPSKSISOHOPP 3DH10.39031.600320124.800<=400Pass 3DH31.64831.600165271.920<=400Pass 3DH52.89431.600108312.552<=400Pass V1.0Page26of53ReportNo.:CTL2210191011-WF 5.1.2TestGraph GFSK_DH1_HOPP_Ant1_NTNV GFSK_DH1_HOPP_Ant1_NTNV V1.0Page27of53ReportNo.:CTL2210191011-WF GFSK_DH3_HOPP_Ant1_NTNV GFSK_DH3_HOPP_Ant1_NTNV V1.0Page28of53ReportNo.:CTL2210191011-WF GFSK_DH5_HOPP_Ant1_NTNV GFSK_DH5_HOPP_Ant1_NTNV V1.0Page29of53ReportNo.:CTL2210191011-WF Pi/4DQPSK_2DH1_HOPP_Ant1_NTNV Pi/4DQPSK_2DH1_HOPP_Ant1_NTNV V1.0Page30of53ReportNo.:CTL2210191011-WF Pi/4DQPSK_2DH3_HOPP_Ant1_NTNV Pi/4DQPSK_2DH3_HOPP_Ant1_NTNV V1.0Page31of53ReportNo.:CTL2210191011-WF Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV V1.0Page32of53ReportNo.:CTL2210191011-WF 8DPSK_3DH1_HOPP_Ant1_NTNV 8DPSK_3DH1_HOPP_Ant1_NTNV V1.0Page33of53ReportNo.:CTL2210191011-WF 8DPSK_3DH3_HOPP_Ant1_NTNV 8DPSK_3DH3_HOPP_Ant1_NTNV V1.0Page34of53ReportNo.:CTL2210191011-WF 8DPSK_3DH5_HOPP_Ant1_NTNV 8DPSK_3DH5_HOPP_Ant1_NTNV V1.0Page35of53ReportNo.:CTL2210191011-WF 6.UnwantedEmissionsInNon-restrictedFrequencyBands 6.1Ref 6.1.1TestResult Mode TX Type Frequency (MHz) Packet Type ANT LevelofReference (dBm) GFSKSISO 2402DH51-12.20 2441DH51-11.59 2480DH51-11.90 Pi/4DQPSKSISO 24022DH51-12.30 24412DH51-11.67 24802DH51-12.03 8DPSKSISO 24023DH51-12.43 24413DH51-11.77 24803DH51-12.14 Note1:RefertoFCCPart15.247(d)andANSIC63.10-2013,thechannelcontainsthemaximumPSDlevelwasusedto establishthereferencelevel. V1.0Page36of53ReportNo.:CTL2210191011-WF 6.1.2TestGraph GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV V1.0Page37of53ReportNo.:CTL2210191011-WF GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV V1.0Page38of53ReportNo.:CTL2210191011-WF Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK…

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FCCID:2A36Z-WRENTREKPage 1 of 1 ReportNo.:CTL2210191011-WF TestSetupPhotosoftheEUT