TEST REPORT. : Firefly2. : FCCCFR47Part15Section15.247:2015 : Oct.28,2015 : Oct.29,2015-Jan.10,2016 : Mar.03,2016 : Pass. Reference No... FCC ID...

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1 TEST REPORT Reference No... FCC ID... Applicant... Address... Manufacturer... Address... Product Name... : WTS15S E : 2AGT : NWTHoldingsLLC : 3226thStreetSuite4SanFrancisco,CA94103,USA : DongGuanDongHong XingYeElectronicTechnologyCo.,Ltd : 1JianxiangStreet,Hanxishui,ChashanTown,Dongguan, Guangdong, China : Firefly2 Model No... : 2.0 Standards... Date of Receipt sample... Date of Test... Date of Issue... Test Result... : FCCCFR47Part15Section15.247:2015 : Oct.28,2015 : Oct.29,2015-Jan.10,2016 : Mar.03,2016 : Pass Remarks: Theresultsshowninthistestreportreferonlytothesample(s)tested,thistestreportcannotbe reproduced, except in full, without prior written permission of the company. The report would be invalid withoutspecificstampoftestinstituteandthesignaturesofcompilerandapprover. Prepared By: Waltek Services (Shenzhen) Co., Ltd. Address:1/F.,FukangtaiBuilding,WestBaimaRoad,SonggangStreet,BaoanDistrict,Shenzhen, Guangdong,China Tel: Fax: Compiledby: Approvedby: ZeroZhou/TestEngineer PhiloZhong/Manager Page 1 of 42

2 Page2of42 2 Test Summary Test Items Test Requirement Result RadiatedEmissions (a) (a) PASS ConductedEmissions (a) PASS Bandwidth (a)(2) PASS Maximum Peak Output Power (b)(3),(4) PASS Power Spectral Density (e) PASS Band Edge (d) PASS Antenna Requirement PASS MaximumPermissibleExposure (ExposureofHumanstoRFFields) (b)(1) PASS

3 Page3of42 3 Contents Page 1 COVER PAGE TEST SUMMARY CONTENTS GENERAL INFORMATION GENERAL DESCRIPTION OF E.U.T DETAILS OF E.U.T CHANNELLIST TESTMODE TESTFACILITY EQUIPMENT USED DURING TEST EQUIPMENTSLIST DESCRIPTION OF SUPPORT UNITS MEASUREMENTUNCERTAINTY TESTEQUIPMENTCALIBRATION CONDUCTED EMISSION E.U.T.OPERATION EUTSETUP MEASUREMENTDESCRIPTION CONDUCTED EMISSION TESTRESULT RADIATED EMISSIONS EUTOPERATION TESTSETUP SPECTRUM ANALYZER SETUP TESTPROCEDURE SUMMARY OF TESTRESULTS BAND EDGE MEASUREMENT TESTPRODUCE TESTRESULT BANDWIDTH MEASUREMENT TESTPROCEDURE TEST RESULT: MAXIMUM PEAK OUTPUT POWER TESTPROCEDURE TESTRESULT POWER SPECTRAL DENSITY TESTPROCEDURE TESTRESULT ANTENNA REQUIREMENT RF EXPOSURE REQUIREMENTS THE PROCEDURES/ LIMIT PHOTOGRAPHS MODEL 2.0 TEST SETUP PHOTOGRAPH RADIATEDEMISSION PHOTOGRAPH CONDUCTED EMISSION TEST SETUP AT TEST SITE 1# PHOTOGRAPH RFCONDUCTEDTESTSETUP... 31

4 Page4of42 15 PHOTOGRAPHS - CONSTRUCTIONAL DETAILS MODEL2.0-EXTERNALPHOTOS MODEL2.0-INTERNALPHOTOS... 37

5 Page5of42 4 General Information 4.1 General Description of E.U.T. ProductName: :Firefly2 ModelNo.: :2.0 ModelDifference: :N/A OperationFrequency: :2402MHz~2480MHz,separatedby2MHz,40channelsintotal Thelowestoscillator: :32.768kHz AntennaGain: 0dBi Typeofmodulation: :GFSK(BLEonly) 4.2 Details of E.U.T. TechnicalData :DC7.4V770mAh5.7WhbyLi-ionbattery 4.3 Channel List Channel Frequency Channel Frequency Channel Frequency Channel Frequency No. (MHz) No. (MHz) No. (MHz) No. (MHz) Test Mode Alltestmode(s)andcondition(s)mentionedwereconsideredandevaluatedrespectivelyby performingfulltests,theworstdatawererecordedandreported. Table1TestsCarriedOutUnderFCCpart Testmode Lowchannel Middlechannel Highchannel Transmitting 2402MHz 2440MHz 2480MHz Note:TestsCarriedOutwithanewbattery

6 Page6of Test Facility Thetestfacilityhasatestsiteregisteredwiththefollowingorganizations: IC Registration No.: 7760A-1 Hasbeenregisteredandfullydescribedinareportfiledwiththe IndustryCanada.TheacceptanceletterfromtheIndustryCanadaismaintainedinourfiles. Registrationnumber7760A-1,October15,2015. FCC Test Site 1# Registration No.: EMCLaboratory`hasbeenregisteredandfullydescribedina reportfiledwiththe(fcc)federalcommunicationscommission.theacceptanceletterfromthefcc ismaintainedinourfiles.registration880581,april29,2014. FCC Test Site 2# Registration No.: EMCLaboratory`hasbeenregisteredandfullydescribedina reportfiledwiththe(fcc)federalcommunicationscommission.theacceptanceletterfromthefcc ismaintainedinourfiles.registration328995,december3,2014.

7 Page7of42 5 Equipment Used during Test 5.1 Equipments List Conducted Emissions Test Site 1# Item Equipment Manufacturer Model No. Serial No. Last Calibration Date Calibration Due Date 1. EMITestReceiver R&S ESCI Sep.15,2015 Sep.14, LISN R&S ENV Sep.15,2015 Sep.14, Cable Top TYPE16(3.5M) - Sep.15,2015 Sep.14,2016 Conducted Emissions Test Site 2# Item Equipment Manufacturer Model No. Serial No. Last Calibration Date Calibration Due Date 1. EMITestReceiver R&S ESCI Sep.15,2015 Sep.14, LISN SCHWARZBECK NSLK Sep.15,2015 Sep.14, Limiter York MTS-IMP Sep.15,2015 Sep.14, Cable LARGE RF300 - Sep.15,2015 Sep.14,2016 3m Semi-anechoic Chamber for Radiation Emissions Test site 1# Item Equipment Manufacturer Model No. Serial No. Last Calibration Date Calibration Due Date 1 EMCAnalyzer Agilent E7405A MY Sep.15,2015 Sep.14, ActiveLoopAntenna BeijingDazhi ZN30900A - Sep.15,2015 Sep.14, TrilogBroadband Antenna SCHWARZBECK VULB Apr.19,2015 Apr.18, Coaxial Cable (below1ghz) Top TYPE16(13M) - Sep.15,2015 Sep.14, Broad-bandHorn Antenna SCHWARZBECK BBHA 9120 D 667 Apr.19,2015 Apr.18, Broad-bandHorn Antenna SCHWARZBECK BBHA Apr.19,2015 Apr.18, Broadband COMPLIANCE Preamplifier DIRECTION PAP-1G Mar.17,2015 Mar.16, Coaxial Cable (above1ghz) Top 1GHz-25GHz EW Apr.10,2015 Apr.09,2016 3m Semi-anechoic Chamber for Radiation Emissions Test site 2# Item Equipment Manufacturer Model No. Serial No Last Calibration Date Calibration Due Date 1 TestReceiver R&S ESCI Sep.15,2015 Sep.14, TrilogBroadband Antenna SCHWARZBECK VULB Sep.15,2015 Sep.14,2016 Compliance 3 Amplifier pirection PAP Sep.15,2015 Sep.14,2016 systemsinc 4 Cable HUBER+SUHNER CBL Sep.15,2015 Sep.14,2016

8 Page8of42 RF Conducted Testing Item Equipment Manufacturer Model No. Serial No EMC Analyzer (9k~26.5GHz) Spectrum Analyzer (9k-6GHz) SignalAnalyzer (9k~26.5GHz) Agilent E7405A MY Last Calibration Date Calibration Due Date Sep.15,2015 Sep.14,2016 R&S FSL Sep.15,2015 Sep.14,2016 Agilent 5.2 Description of Support Units N9010A MY Equipment Manufacturer Model No. Adpater I.T.E POWER SUPPLY CS18M050200FUSB 5.3 Measurement Uncertainty Sep.15,2015 Sep.14,2016 Parameter Uncertainty RadioFrequency ±1x10-6 RFPower ±1.0dB RFPowerDensity ±2.2dB ±5.03dB(Bilogantenna30M~1000MHz) RadiatedSpuriousEmissionstest ±4.74dB(Hornantenna1000M~25000MHz) ConductedSpuriousEmissionstest ±3.64dB(ACmains150KHz~30MHz) 5.4 Test Equipment Calibration AllthetestequipmentsusedarevalidandcalibratedbyCEPREICertificationBodythat addressisno.110dongguanzhuangrd.guangzhou,p.r.china.

9 Page9of42 6 Conducted Emission TestRequirement: TestMethod: TestResult: FrequencyRange: Class/Severity: Limit: Detector: FCCCFR47Part15Section ANSI C63.10:2013 PASS 150kHzto30MHz Class B 66-56dB Vbetween0.15MHz&0.5MHz 56dB Vbetween0.5MHz&5MHz 60dB Vbetween5MHz&30MHz Peakforpre-scan(9kHzResolutionBandwidth) 6.1 E.U.T. Operation OperatingEnvironment : Temperature: Humidity: AtmosphericPressure: 25.5 C 51% RH 101.2kPa EUTOperation : ThetestwasperformedinTransmittingmode,thetestdatawereshowninthereport. 6.2 EUT Setup TheconductedemissiontestswereperformedusingthesetupaccordancewiththeANSIC63.10: m 3m EUT Receiver PCSystem 0.8m LISN :50 Terminator 6.3 Measurement Description The maximised peak emissions from the EUT was scanned and measured for both the Live and Neutral Lines. Quasi-peak & average measurements were performed if peak emissions were within 6dBoftheaveragelimitline.

10 Page10of Conducted Emission Test Result Liveline: Formulas: Factor=LISN Factor + Cable Loss

11 Page11of42 Neutralline: Formulas: Factor=LISN Factor + Cable Loss

12 Page12of42 7 Radiated Emissions TestRequirement: FCCCFR47Part15Section15.209& TestMethod: D01DTSMeasGuidancev03r04&ANSI C63.10:2013 TestResult: PASS MeasurementDistance: 3m Limit: FieldStrength FieldStrengthLimitat3mMeasurementDist Frequency Distance (MHz) uv/m uv/m dbuv/m (m) 0.009~ /F(kHz) *2400/F(kHz) 20log (2400/F(kHz)) ~ /F(kHz) *24000/F(kHz) 20log (24000/F(kHz)) ~ *30 20log (30) ~ log (100) 88~ log (150) 216~ log (200) Above log (500) 7.1 EUT Operation Operating Environment: Temperature: 25.5 C Humidity: 51%RH AtmosphericPressure:1016mbar EUTOperation: Thetestwasperformedintransmittingmode,thetestdatawereshowninthereport.

13 Page13of Test Setup Theradiatedemissiontestswereperformedinthe3mSemi-AnechoicChambertestsite,usingthe setupaccordancewiththeansic63.10:2013. Thetestsetupforemissionmeasurementbelow30MHz. Semi-anechoic 3m Chamber TurnTableFrom 0 to 360 EUT 3m 0.8m TurnTable PC System Spectrum Analyzer AMP Combining Network Thetestsetupforemissionmeasurementfrom30MHzto1GHz. Semi-anechoic 3m Chamber AntennaElevationVariesFrom1to4m Turn Table From 0 to 360 3m EUT 0.8m Turn Table PC System Spectrum Analyzer AMP Combining Network

14 Page14of42 Thetestsetupforemissionmeasurementabove1GHz. Anechoic 3m Chamber AntennaElevationVariesFrom1to4m TurnTableFrom0 to360 EUT 3m 1.5m Turn Table Absorbers PC System Spectrum Analyzer AMP Combining Network 7.3 Spectrum Analyzer Setup Below 30MHz SweepSpeed...Auto IFBandwidth...10kHz VideoBandwidth...10kHz Resolution Bandwidth...10kHz 30MHz~1GHz SweepSpeed...Auto Detector...PK ResolutionBandwidth...100kHz VideoBandwidth...300kHz Above1GHz SweepSpeed...Auto Detector...PK ResolutionBandwidth...1MHz VideoBandwidth...3MHz Detector...Ave. ResolutionBandwidth...1MHz VideoBandwidth...10Hz

15 Page15of Test Procedure 1. TheEUTisplacedonaturntable.Forbelow1GHz,theEUTis0.8mabovegroundplane; Forabove1GHz,theEUTis1.5mabovegroundplane. 2.Theturntableshallberotatedfor360degreestodeterminethepositionofmaximumemissionlevel. 3.EUTisset3mawayfromthereceivingantenna,whichismovedfrom1mto4mtofindoutthe maximumemissions.thespectrumwasinvestigatedfromthelowestradiofrequencysignalgenerated inthedevice,withoutgoingbelow9khz,uptothetenthharmonicofthehighestfundamental frequencyorto40ghz,whicheverislower. 4.MaximumprocedurewasperformedonthesixhighestemissionstoensureEUTcompliance. 5.Andalso,eachemissionwastobemaximizedbychangingthepolarizationofreceivingantenna bothhorizontalandvertical. 6.Repeataboveproceduresuntilthemeasurementsforallfrequenciesarecomplete. 7.Theradiationmeasurementsaretestedunder3-axes(X,Y,Z)position(Xdenoteslyingonthetable, YdenotessidestandandZdenotesverticalstand),Afterpre-test,Itwasfoundthattheworse radiationemissionwasgetatthexposition.sothedatashownwasthexpositiononly.

16 Page16of Summary of Test Results Test Frequency: KHz~ 30MHz Themeasurementsweremorethan20dBbelowthelimitandnotreported. Test Frequency: 30MHz ~ 18GHz Frequency Receiver Reading Detector Turn table Angle RXAntenna Height Polar Corrected Factor Corrected Amplitude Limit Margin (MHz) (dbμv) (PK/QP/Ave) Degree (m) (H/V) (db) (dbμv/m) (dbμv/m) (db) GFSK(BLE)LowChannel QP H QP V PK V Ave V PK H Ave H PK V Ave V PK H Ave H PK V Ave V

17 Page17of42 Frequency Receiver Reading Detector Turn table Angle RXAntenna Height Polar Corrected Factor Corrected Amplitude Limit Margin (MHz) (dbμv) (PK/QP/Ave) Degree (m) (H/V) (db) (dbμv/m) (dbμv/m) (db) GFSK( BLE) Middle Channel QP H QP V PK V Ave V PK H Ave H PK V Ave V PK H Ave H PK V Ave V

18 Page18of42 Frequency Receiver Reading Detector Turn table Angle RXAntenna Height Polar Corrected Factor Corrected Amplitude Limit Margin (MHz) (dbμv) (PK/QP/Ave) Degree (m) (H/V) (db) (dbμv/m) (dbμv/m) (db) GFSK(BLE)HighChannel QP H QP V PK V Ave V PK H Ave H PK V Ave V PK H Ave H PK V Ave V Test Frequency: 18GHz~25GHz Themeasurementsweremorethan20dBbelowthelimitandnotreported

19 Page19of42 8 Band Edge Measurement TestRequirement: TestMethod: TestMode: Section (d) In addition, radiated emissions which fall in the restrictedbands.asdefinedinsection15.205(a),mustalsocomply withtheradiatedemissionlimitsspecifiedinsection15.209(a)and (c) D01DTSMeasGuidancev03r04January7,2016 Transmitting 8.1 Test Produce 1. Check the calibration of the measuring instrument using either an internal calibrator or a known signalfromanexternalgenerator. 2.PositiontheEUTwithoutconnectiontomeasurementinstrument.TurnontheEUTandconnectits antennaterminaltomeasurementinstrumentviaalowlosscable.thensetittoanyonemeasured frequencywithinitsoperatingrange,andmakesuretheinstrumentisoperatedinitslinearrange. 3.Setthespectrumanalyzer:RBW=100kHz,VBW=300kHz,Sweep=auto Detectorfunction=peak,Trace=maxhold 4. Measure the highest amplitude appearing on spectral display and set it as a referencelevel. Plot thegraphwithmarkingthehighestpointandedgefrequency. 5.Repeataboveproceduresuntilallmeasuredfrequencieswerecomplete.

20 Page20of Test Result Band edge-left side Bandedge-rightside

21 Page21of42 9 Bandwidth Measurement TestRequirement: TestMethod: FCCCFR47Part15Section D01DTSMeasGuidancev03r04January7, Test Procedure 1.RemovetheantennafromtheEUTandthenconnectalowRFcablefromtheantennaporttothe spectrum; 2.Setthespectrumanalyzer:RBW=100kHz,VBW=300kHz 9.2 Test Result: Operation mode 6dB Bandwidth (MHz) 99% Bandwidth (MHz) Lowchannel Middlechannel Highchannel Test result plot as follows: Mode:Lowchannel

22 Page22of42 Mode:Middlechannel Mode:Highchannel

23 Page23of42 10 Maximum Peak Output Power TestRequirement: TestMethod: FCCCFR47Part15Section D01DTSMeasGuidancev03r04January7, Test Procedure D01DTSMeasGuidancev03r04January7,2016 section RemovetheantennafromtheEUTandthenconnectalowRFcablefromtheantennaporttothe spectrum. 2.Setthespectrumanalyzer:RBW=3MHz.VBW=10MHz.SPAN=10MHz.Sweep=auto;Detector Function=Peak, 3.KeeptheEUTintransmittingatlowest,mediumandhighestchannelindividually.Recordthemax value Test Result MaximumPeakOutputPower(dBm) Lowchannel Middlechannel Highchannel Limit:1W/30dBm Testmode:Lowchannel Testmode:Middlechannel

24 Page24of42 Testmode:Highchannel

25 Page25of42 11 Power Spectral density TestRequirement: TestMethod: FCCCFR47Part15Section D01DTSMeasGuidancev03r04January7, Test Procedure D01DTSMeasGuidancev03r04January7,2016 section RemovetheantennafromtheEUTandthenconnectalowRFcablefromtheantennaport to the spectrum. 2. Set the spectrum analyzer: RBW = 3KHz. VBW = 10KHz, Span = 1.5 times the DTS channel bandwidth(6dbbandwidth).sweep=auto;detectorfunction=peak.trace=maxhold. 3. Allow the trace to stabilize. Use the marker-delta function to determine the separation between the peaks of the adjacent channels. The limit is specified in one of the subparagraphs of this Section Submitthisplot Test Result Power Spectral Density Lowchannel Middlechannel Highchannel Limit:8dBmper3kHz Testmode:Lowchannel

26 Page26of42 Testmode:Middlechannel Testmode:Highchannel

27 Page27of42 12 Antenna Requirement AccordingtotheFCC Part15Paragraph15.203,anintentionalradiatorshallbedesignedto ensure thatnoantennaotherthanthatfurnishedbytheresponsiblepartyshallbeusedwiththedevice.this producthasachipantenna,fulfilltherequirementofthissection.

28 Page28of42 13 RF Exposure TestRequirement: EvaluationMethod FCC Part D01GeneralRFExposureGuidancev05r Requirements 1) The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparationdistances 50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mw)/(min.testseparationdistance,mm)] [ f(ghz)] 3.0for1-gSARand 7.5for10-gextremitySARwhere 1. f(ghz)istherfchanneltransmitfrequencyinghz 2. PoweranddistanceareroundedtothenearestmWandmmbeforecalculation 3. Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis 50mmandfor transmissionfrequenciesbetween100mhzand6ghz.whentheminimumtestseparationdistanceis <5mm,adistanceof5mmisappliedtodetermineSARtestexclusion The procedures / limit Conducted Source-based timeaveragedmaximum distancerequiredforthe SAR Test Exclusion Minimumtestseparation Conducted Peak Peak power(dbm) conductedoutput exposureconditions Thresholds(mW) power(mw) power(mw) (mm) Remark:Max.dutyfactoris100% Calculationformula:Source-basedtime-averagedmaximumconductedoutputpower(mW)=Conducted peakpower(mw)*dutyfactor For frequency in 2.402GHz: SAR Test Exlusion Thresholds 3.0 / [ f(ghz)] *(min. test separation distance,mm)=3.0/( 2.402)*5=9.679mW 10mW For frequency in 2.480GHz: SAR Test Exlusion Thresholds 3.0 / [ f(ghz)] *(min. test separation distance,mm)=3.0/( 2.480)*5=9.525mW 10mW

29 Page29of42 14 Photographs Model 2.0 Test Setup 14.1 Photograph Radiated Emission Testfrequency32.768KHzto30MHzTestSite2# Testfrequencyfrom30MHzto1GHzTestSite2#

30 Page30of42 Testfrequencyabove1GHzTestSite1# 14.2 Photograph Conducted Emission Test Setup at Test Site 1#

31 Page31of Photograph RF Conducted Test Setup

32 Page32of42 15 Photographs - Constructional Details 15.1 Model 2.0- External Photos

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37 Page37of Model 2.0- Internal Photos

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39 Page39of42 ANT

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42 Page42of42 ======End of Report======