2A7SX-MINIMESERIESSubwoofer

AgentAuthorization Company:EarthquakeSoundCorporation Address:2727McConeAve,Hayward,CA94545U.S.A. ProductName:Subwoofer ModelNumber(s):MinimeDSPP8,MinimeDSP8,MinimeFF8,MinimeDSPP8B, MinimeDSPP8W,MinimeP8,MinimeDSPP10,MinimeDSP10,MinimeDSPP12, MinimeDSP12,MinimeDSPFF15,MinimeDSPP15,MinimeDSP15 ProductDescription:Frequencyin2402-2480MHz,BTmodeoperation WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2022-07-26 Name:AbrahamSahyoun Title:V.P.ofOperations Company:EarthquakeSoundCorporation

EarthquakeSoundCorporation Add:2727McConeAve,Hayward,CA94545U.S.A. Date:2022.07.26 FCCID:2A7SX-MINIMESERIES DearSir/Madam, We,EarthquakeSoundCorporationHerebydeclaresthefollowingstatementforFederal CommunicationsCommission,Exceptthemodelnumber,colorandbrandaredifferent, everythingelseisthesame.: Productname:Subwoofer Modelno.:MinimeDSPP8,MinimeDSP8,MinimeFF8,MinimeDSPP8B,MinimeDSPP8W, MinimeP8,MinimeDSPP10,MinimeDSP10,MinimeDSPP12,MinimeDSP12,MinimeDSP FF15,MinimeDSPP15,MinimeDSP15 Sincerely, Name/Title： AbrahamSahyoun/V.P.ofOperations Company: EarthquakeSoundCorporation Address: 2727McConeAve,Hayward,CA94545U.S.A. Phone: 510-732-1000 Fax: 510-732-1095 E-Mail: [email protected]@gmail.com

FCCID:2A7SX-MINIMESERIES FCCID:2A7SX-MINIMESERIES FCCID:2A7SX-MINIMESERIES FCCID:2A7SX-MINIMESERIES

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 FCC ID:2A7SX-MINIMESERIES 10 SUBWOOFER

FCCID:2A7SX-MINIMESERIES FCCID:2A7SX-MINIMESERIES FCCID:2A7SX-MINIMESERIES FCCID:2A7SX-MINIMESERIES FCCID:2A7SX-MINIMESERIES FCCID:2A7SX-MINIMESERIES FCCID:2A7SX-MINIMESERIES BTAnt

RFExposureevaluation Exposurecategory:Generalpopulation/uncontrolledenvironment EUTType:ProductionUnit DeviceType:MobileDevice ReferStandard:KDB447498D01GeneralRFExposureGuidancev06 FCCPart2§2.1091 FCCID:2A7SX-MINIMESERIES 1.Reference Accordingto§1.1307(b)(1),systemsoperatingundertheprovisionsofthissectionshallbe operatedinamannerthatensuresthatthepublicisnotexposedtoradiofrequencyenergy levelinexcessoftheCommission’sguidelines. Accordingto§1.1310and§2.1091RFexposureiscalculated. KDB447498D01:MobileandPortableDevicesRFExposureProceduresandEquipment AuthorizationPolicies 2.Limit LimitsforMaximumPermissibleExposure(MPE)/ControlledExposure Frequency Range(MHz) ElectricField Strength(V/m) MagneticField Strength(A/m) PowerDensity (mW/cm²) AveragingTime (minute) LimitsforOccupational/ControlledExposure 0.3–3.06141.63(100)*6 3.0–301842/f4.89/f(900/f 2 )*6 30–30061.40.1631.06 300–1500//f/3006 1500–100,000//56 LimitsforMaximumPermissibleExposure(MPE)/UncontrolledExposure Frequency Range(MHz) ElectricField Strength(V/m) MagneticField Strength(A/m) PowerDensity (mW/cm²) AveragingTime (minute) LimitsforOccupational/ControlledExposure 0.3–3.06141.63(100)*30 3.0–30824/f2.19/f(180/f 2 )*30 30–30027.50.0730.230 300–1500//f/150030 1500–100,000//1.030 F=frequencyinMHz *=Plane-waveequivalentpowerdensity 3.MPECalculationMethod PredicationofMPElimitatagivendistance Equationfrompage18ofOETBulletin65,Edition97-01 S=PG/4πR² Where:S=powerdensity P=powerinputtoantenna G=powergainoftheantennainthedirectionofinterestrelativetoanisotropicradiator R=distancetothecenterofradiationoftheantenna 4.Result AsdeclaredbytheApplicant,theEUTisawirelessdeviceusedinafixapplication,atleast 20cmfromanybodypartoftheuserornearbypersons;fromthemaximumEUTRFoutput power,theminimumseparationdistance,r=20cm,aswellasthegainoftheusedBTantenna is1.9dBi,theRFpowerdensitycanbeobtained. BLE Freq. (MHz) Output Power (dBm) Target powerW/ tolerance (dBm) Maxtuneup power tolerance (dBm) Output powerto antenna (mW) Ant Gain (dBi) Power Densityat R=20cm (mW/cm2) Limit (mW/c m2) Result GFSK 24021.094 1±1.0 2 1.5851.90.00049 1 Pass 24400.632 1±1.0 21.5851.90.000491Pass 24800.460 0 ± 1.0 11.2591.90.000391Pass Note:Theestimationdistanceis20cm 5.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1091fortheuncontrolled RFExposureofmobiledevice.

Product specification Quick Reference Date Antenna module on the system board Frequenc Range 2400 ~ 2500MHz Ant. Port Input Pwr. (dBm) 0 (Typ. BT class 2 output power) Tot. Rad. Pwr. (dBm) -1.2 (Input pwr – loss pwr) Peak EIRP(dBm) 1.2 Directivity (dBi) 1 (all direction antenna) Efficiency (dB) 6 0.2 % Gain (dBi) 1.2 (Avg Gain XY-plane) Maximum Power (dBm) 1.7 (XY-plane) Minimum Power (dBm) -4(XY-plane) Avg. Power (dBm) -0.5(XY-plane) Input Impendence(ohm) 50 Polarization Type V ertical & Horizontal V . S .W . R < 1.4 All the technical data and information contained herein are subject to ch ange without prior notice Antenna Layout & module on the system board Antenna Gain Gain Table Unit in dBi @2.44GHz XY-plane XZ-plane YZ-plane Efficiency Peak Avg. Peak Avg. Peak Avg. Module Board 1.2 -0.5 1.9 -3.6 1.1 -3.0 6 0.2 % Retum Loss The Environment of Antenna Radiation Pattem 3D radiation pattern diagram XY-plane XZ-plane YZ-plane

ProjectNo.:ZKT-220718L5032 Page 1 of 42 FCCTESTREPORT FCCID:2A7SX-MINIMESERIES ReportNumber.....................................:ZKT-220718L5032 DateofTest ....................................................... : Jun.26,2022toJul.25,2022 Dateofissue ......................................... : Jul.26,2022 Totalnumberofpages.......................... 42 TestResult .......................................... :PASS TestingLaboratory. .............................. : ShenzhenZKTTechnologyCo.,Ltd. Address ............................................... : 1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China Applicant'sname ................................ : EarthquakeSoundCorporation Address...............................................: 2727McConeAve,Hayward,CA94545U.S.A. Manufacturer'sname.........................: VistronAudioEquipmentCo.,Ltd. Address ............................................... : No.17,JiCaiStreet,SongGangDistrict,QingXiTown,DongGuan City,GuangDongProvince,China Testspecification: Standard ................................................ : FCCCFRTitle47Part15SubpartCSection15.247 ANSIC63.10:2013 Testprocedure.....................................: / Non-standardtestmethod................:N/A TestReportFormNo........................: TRF-EL-111_V0 TestReportForm(s)Originator ..... : ZKTTesting MasterTRF ........................................ : Dated:2021-08-26 ThisdevicedescribedabovehasbeentestedbyZKT,andthetestresultsshowthattheequipmentunder test(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZKT,thisdocumentmay bealteredorrevisedbyZKT,personalonly,andshallbenotedintherevisionofthedocument. Productname.......................................:Subwoofer Trademark...........................................: EARTHQUAKE Model/Typereference ......................... : MinimeDSPP8,MinimeDSP8,MinimeFF8,MinimeDSPP8B, MinimeDSPP8W,MinimeP8,MinimeDSPP10,MinimeDSP10, MinimeDSPP12,MinimeDSP12,MinimeDSPFF15,MinimeDSP P15,MinimeDSP15 Ratings .................................................. :100-120V~60Hz,220-240V~50Hz ProjectNo.:ZKT-220718L5032 Page 2 of 42 Testingprocedureandtestinglocation: TestingLaboratory.......................................:ShenzhenZKTTechnologyCo.,Ltd. Address............................................................:1/F,No.101,BuildingB,No.6,TangweiCommunity IndustrialAvenue,FuhaiStreet,Bao'anDistrict, Shenzhen,China AlenHe Testedby(name+signature).......................: JoeLiu Reviewer(name+signature).......................: LakeXie Approved(name+signature).......................: ProjectNo.:ZKT-220718L5032 Page 3 of 42 TableofContents Page 1.VERSION....................................................................................................................5 2.SUMMARYOFTESTRESULTS................................................................................6 2.1TESTFACILITY.................................................................................................................7 2.2MEASUREMENTUNCERTAINTY....................................................................................7 3.GENERALINFORMATION........................................................................................8 3.1GENERALDESCRIPTIONOFEUT.................................................................................8 3.2DESCRIPTIONOFTESTMODES....................................................................................9 3.3BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED..............9 3.4DESCRIPTIONOFSUPPORTUNITS(CONDUCTEDMODE)........................................9 3.5EQUIPMENTSLISTFORALLTESTITEMS.................................................................10 4.EMCEMISSIONTEST.............................................................................................11 4.1CONDUCTEDEMISSIONMEASUREMENT..................................................................11 4.1.1POWERLINECONDUCTEDEMISSIONLIMITS..................................................11 4.1.2TESTPROCEDURE................................................................................................11 4.1.3DEVIATIONFROMTESTSTANDARD..................................................................11 4.1.4TESTSETUP...........................................................................................................12 4.1.5EUTOPERATINGCONDITIONS...........................................................................12 4.1.6TESTRESULTS......................................................................................................13 4.2RADIATEDEMISSIONMEASUREMENT......................................................................15 4.2.1RADIATEDEMISSIONLIMITS...............................................................................15 4.2.2TESTPROCEDURE...............................................................................................16 4.2.3DEVIATIONFROMTESTSTANDARD..................................................................16 4.2.4TESTSETUP...........................................................................................................16 4.2.5EUTOPERATINGCONDITIONS...........................................................................17 5.RADIATEDBANDEMISSIONMEASUREMENT.....................................................22 5.1TESTREQUIREMENT:..............................................................................................22 5.2TESTPROCEDURE..................................................................................................22 5.3DEVIATIONFROMTESTSTANDARD.....................................................................22 5.4TESTSETUP..............................................................................................................23 5.5EUTOPERATINGCONDITIONS.................................................…

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FCCID:2A7SX-MINIMESERIES RadiatedEmission (Below1G) RadiatedEmission (Above1G) FCCID:2A7SX-MINIMESERIES ConductedEmission