2AIY2-STRATABT Speaker

Instructionmanual Specification: BluetoothVersion:V5.0 Battery:Lithium-Polymer/500mAh Speakeroutput:3W Operatingdistance:10m ProductSize:71x71x58mm Material:Cement+ABS Accessory: USBchargingcablex1pcs Instructionmanualx1pcs Productoverview: 1.Powerbutton(longpress) 2.Chargingindicatorledlight 3.MicroUSBchargingport 4.Bluetoothstatus PlayviaComputer/MobilephoneinBluetoothstate: –Long-pressthepowerbuttontoturnonthepowerofspeaker –ActivateBluetoothinPhoneorComputer –Searchthespeaker,name“BTSpeaker” –Pairing –ConnectandPlay Note: -Donotdrop,applyexcessiveforcetothecontrols,orputheavyobjectsontopoftheBTspeaker. -Donotattempttorepair,disassembleormodifytheproduct.Therearenouser-serviceableparts insidethisunit. -Ifyoudonotusethespeakerforlongperiodsiftime,besuretostoreitonadryplace,freefrom extremetemperature,humidityandduct. -Keepspeakerawayfromanyheatsource. -Thisisnotatoy,notsuitableforchildrenundertheageof7. FCC Caution： 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.

FortyfourgroupLLC AgentAuthorization Company:FortyfourgroupLLC Address:11397SlaterAve,FountainValley,CA92708USA ProductName:BTSpeaker ModelNumber(s):Strata ProductDescription:BTSpeaker WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2020/1/10 Name:JasonLucash Title:Manager Company:FortyfourgroupLLC

FortyfourgroupLLC OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2020/1/10 Subject;RequestforConfidentiality FCCID:2AIY2-STRATA ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram OperationalDescription Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:JasonLucash Title:Manager

Size:40*20mm Label location M/N: Strata FCC ID: 2AIY2-STRATA 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 maycause undesired operation.

InternalPhotos Antenna

RFEXPOSUREEVALUATIONMETHOD FCCID:2AIY2-STRATA 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. BT-EDR maxpossibleoutputpower(PK,conducted)：4±1dBm 0dBilogarithmictermsconverttonumericresultisnearly1 5dBm=3.16mW 2402MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=3.16/5*√2.402=0.98≤3.0 Modulation Frequency (MHz) OutputPower (dBm) MaxAntenna Gain(dBi) GFSKLow2.6221 GFSK Middle3.0121 GFSK High3.0421 Pi/4DQPSK Low3.3321 Pi/4DQPSK Middle3.6921 Pi/4DQPSK High3.7221 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. 2441MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=3.16/5*√2.441=0.99≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. 2480MHz [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=3.16/5*√2.48=1.00≤3.0 ThresholdatwhichnoSARrequiredis10mwand≤3.0for1-gSAR,Separation distanceis5mm. Conclusion:NoSARisrequired.

ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page1of59 FCCPart15CTestReport FCCID:2AIY2-STRATA ProductName:BTSpeaker Trademark:N/A ModelName:Strata PreparedFor:FortyfourgroupLLC Address:11397SlaterAve,FountainValley,CA92708USA PreparedBy:ShenzhenBCTCTestingCo.,Ltd. Address: BCTCBuilding&1-2F,EastofBBuilding,PengzhouIndustrial,Fuyuan 1stRoad,QiaotouCommunity,FuyongStreet,Bao’anDistrict,Shenzhen, China TestDate:Jan.03,2020–Jan.09,2020 DateofReport:Jan.09,2020 ReportNo.:BCTC2001000155E ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page2of59 TESTRESULTCERTIFICATION Applicant’sname...............: FortyfourgroupLLC Address .................................. : 11397SlaterAve,FountainValley,CA92708USA Manufacture'sName.........: FortyfourgroupLLC Address..................................: 11397SlaterAve,FountainValley,CA92708USA Productdescription Productname........................: BTSpeaker Trademark.............................: N/A Modeland/ortypereference .................................................: Strata Standards.............................: FCCPart15.247 ANSIC63.10:2013 ThisdevicedescribedabovehasbeentestedbyBCTC,andthetestresultsshowthatthe equipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditisapplicable onlytothetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofBCTC,this documentmaybealteredorrevisedbyBCTC,personalonly,andshallbenotedintherevision ofthedocument. Preparedby(Engineer):KelseyTan Reviewer(Supervisor):EricYang Approved(Manager):ZeroZhou ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page3of59 TableofContents TestReportDeclarationPage 1.TESTSUMMARY .............................................................................................................. 5 2.TESTFACILITY ................................................................................................................. 6 3.MEASUREMENTUNCERTAINTY ................................................................................. 6 4.GENERALINFORMATION ............................................................................................. 7 4.1GENERALDESCRIPTIONOFEUT .............................................................................. 7 4.2TestSetupConfiguration ................................................................................................. 8 4.3SupportEquipment ........................................................................................................... 8 4.4ChannelList ....................................................................................................................... 9 4.5TestMode ......................................................................................................................... 10 5.TESTFACILITYANDTESTINSTRUMENTUSED .................................................. 11 5.1TestFacility ...................................................................................................................... 11 5.2TestInstrumentUsed ..................................................................................................... 11 6.CONDUCTEDEMISSIONS ........................................................................................... 13 6.1BlockDiagramOfTestSetup ........................................................................................ 13 6.2Limit ................................................................................................................................... 13 6.3Testprocedure ................................................................................................................. 13 6.4TestResult ....................................................................................................................... 14 7.RADIATEDEMISSIONS ................................................................................................ 17 7.1BlockDiagramOfTestSetup ........................................................................................ 17 7.2Limit ................................................................................................................................... 18 7.3Testprocedure ................................................................................................................. 18 7.4TestResult ....................................................................................................................... 20 7.5RADIATEDBANDEMISSIONMEASUREMENTANDRESTRICTEDBANDS OFOPERATION ....................................................................................................................... 24 8.CONDUCTEDEMISSION .............................................................................................. 27 8.1BlockDiagramOfTestSetup ........................................................................................ 27 8.2Limit ................................................................................................................................... 27 8.3Testprocedure ................................................................................................................. 27 8.4TestResult ....................................................................................................................... 28 9.20DBBANDWIDTH ....................................................................................................... 34 9.1BlockDiagramOfTestSetup ........................................................................................ 34 9.2Limit ................................................................................................................................... 34 9.3Testprocedure ........................................................................…

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ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page42of59 Pi/4DQPSKLowChannel Pi/4DQPSKMiddleChannel ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page43of59 Pi/4DQPSKHighChannel ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page44of59 11.HOPPINGCHANNELSEPARATION 11.1BlockDiagramOfTestSetup 11.2Limit Frequencyhoppingsystemsshallhavehoppingchannelcarrierfrequenciesseparatedbya minimumof25kHzorthe20dBbandwidthofthehoppingchannel,whicheverisgreater. Alternatively,frequencyhoppingsystemsoperatinginthe2400-2483.5MHzbandmayhave hoppingchannelcarrierfrequenciesthatareseparatedby25kHzortwo-thirdsofthe20dB bandwidthofthehoppingchannel,whicheverisgreater,providedthesystemsoperatewith anoutputpowernogreaterthan0.125W. 11.3Testprocedure 1.RemovetheantennafromtheEUTandthenconnectalowRFcablefromtheantennaport tothespectrum. 2.Setthespectrumanalyzer:RBW=30kHz.VBW=100kHz,Span=2.0MHz.Sweep= auto;DetectorFunction=Peak.Trace=Maxhold. 3.Allowthetracetostabilize.Usethemarker-deltafunctiontodeterminetheseparation betweenthepeaksoftheadjacentchannels.Thelimitisspecifiedinoneofthe subparagraphsofthisSectionSubmitthisplot. EUT RadioTestSystem ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page45of59 11.4TestResult ModulationTestChannel Separation (MHz) Limit(MHz)Result GFSKLow1.0000.582PASS GFSK Middle1.0020.582PASS GFSK High1.0020.580PASS Pi/4DQPSK Low1.0040.819PASS Pi/4DQPSK Middle1.0000.819PASS Pi/4DQPSK High1.0000.834PASS Testplots GFSKLowChannel ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page46of59 GFSKMiddleChannel GFSKHighChannel ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page47of59 Pi/4DQPSKLowChannel Pi/4DQPSKMiddleChannel ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page48of59 Pi/4DQPSKHighChannel ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page49of59 12.NUMBEROFHOPPINGFREQUENCY 12.1BlockDiagramOfTestSetup 12.2Limit Frequencyhoppingsystemsinthe2400-2483.5MHzbandshalluseatleast15channels. 12.3Testprocedure 1.RemovetheantennafromtheEUTandthenconnectalowRFcablefromtheantennaport tothespectrum. 2.Setthespectrumanalyzer:RBW=100kHz.VBW=300kHz.Sweep=auto;Detector Function=Peak.Trace=Maxhold. 3.Allowthetracetostabilize.Itmayprovenecessarytobreakthespanuptosections.in ordertoclearlyshowallofthehoppingfrequencies.Thelimitisspecifiedinoneofthe subparagraphsofthisSection. 4.Setthespectrumanalyzer:StartFrequency=2.4GHz,StopFrequency=2.4835GHz. Sweep=auto; EUT RadioTestSystem ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page50of59 12.4TestResult TestPlots: 79Channelsintotal GFSK Pi/4DQPSK ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page51of59 13.DWELLTIME 13.1BlockDiagramOfTestSetup 13.2Limit Frequencyhoppingsystemsinthe2400-2483.5MHzbandshalluseatleast15channels. Theaveragetimeofoccupancyonanychannelshallnotbegreaterthan0.4secondswithin aperiodof0.4secondsmultipliedbythenumberofhoppingchannelsemployed.Frequency hoppingsystemsmayavoidorsuppresstransmissionsonaparticularhoppingfrequency providedthataminimumof15channelsareused. 13.3Testprocedure 1.RemovetheantennafromtheEUTandthenconnectalowRFcablefromtheantennaport tothespectrum. 2.Setspectrumanalyzerspan=0.Centredonahoppingchannel; 3.SetRBW=1MHzandVBW=3MHz.Sweep=asnecessarytocapturetheentiredwell timeperhoppingchannel.SettheEUTforDH5,DH3andDH1packettransmitting. 4.Usethemarker-deltafunctiontodeterminethedwelltime.Ifthisvaluevarieswithdifferent modesofoperation(e.g..datarate.modulationformat.etc.).repeatthistestforeach variation.ThelimitisspecifiedinoneofthesubparagraphsofthisSection.Submitthis plot(s). EUT RadioTestSystem ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page52of59 13.4TestResult DH5Packetpermitmaximum1600/79/6hopspersecondineachchannel (5timeslotsRX,1timeslotTX). DH3Packetpermitmaximum1600/79/4hopspersecondineachchannel (3timeslotsRX,1timeslotTX). DH1Packetpermitmaximum1600/79/2hopspersecondineachchannel (1timeslotRX,1timeslotTX).So,theDwellTimecanbecalculatedasfollows: DH5:1600/79/6*0.4*79*(MkrDelta)/1000 DH3:1600/79/4*0.4*79*(MkrDelta)/1000 DH1:1600/79/2*0.4*79*(MkrDelta)/1000 Remark:MkrDeltaisoncepulsetime. Modulation Channel Data Packet pulse time(ms) Dwell Time(s) Limits(s) GFSKMiddle DH10.3840.1230.4 DH3 1.656 0.2650.4 DH5 2.920 0.3110.4 Pi/4DQPSKMiddle 2DH10.3940.1260.4 2DH31.6500.2640.4 2DH52.9100.3100.4 ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page53of59 TestPlots GFSKDH1MiddleChannel GFSKDH3MiddleChannel ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page54of59 GFSKDH5HighMiddleChannel Pi/4DQPSKDH1MiddleChannel ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page55of59 Pi/4DQPSKDH3MiddleChannel Pi/4DQPSKDH5MiddleChannel ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page56of59 14.ANTENNAREQUIREMENT Anintentionalradiatorshallbedesignedtoensurethatnoantennaotherthanthatfurnished bytheresponsiblepar…

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ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page58of59 16.EUTTESTSETUPPHOTOGRAPHS Spuriousemissions ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2001000155E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page59of59 Conductedemissions ※※※※※ENDOFREPORT※※※※※