2ALVKHA-A6TWIRELESS HEADPHONES

Cosonic IntelligentTechnologies Co.，Ltd. Declaration Letter We Name: Address: Certify that： Product name: Model No.: FCC ID: IC: Cosonic Intelligent Technologies Co.，Ltd. Room 506 building 1,No.6,South Industrial Road, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong, P.R.China 523808 WIRELESS HEADPHONES HA-A6T, HA-EC25T 2ALVKHA-A6T 11136A-HAA6T RF parts of left ear and right ear are exactly the symmetrical. on our behalf. Client Signature: Contact: 0769-22862666 Extension: Company Name: YAN KAI Date: 2022-6-7

ModelDeclarationLetter We Name:CosonicIntelligentTechnologiesCo.，Ltd. Address: Room506building1,No.6,SouthIndustrialRoad,SongshanLakeHigh-tech IndustrialDevelopmentZone,DongguanCity,Guangdong,P.R.China523808 Certifythat： Productname:WIRELESSHEADPHONES ModelNo.:HA-A6T,HA-EC25T Allmodelsaredifferentformodelname,radiumcarving,antennabody,matchingcircuitandcharging box,theothersarethesame. onourbehalf. ClientSignature: KAIYAN Contact:0769-86596919Extension: CompanyName:CosonicIntelligentTechnologiesCo.，Ltd. Date:2022.6.7

RF_160,Issue04 DeclarationofAuthorization We Name:CosonicIntelligentTechnologiesCo.，Ltd. Address:Room506building1,No.6,SouthIndustrialRoad,SongshanLakeHigh-techIndustrial DevelopmentZone,DongguanCity,Guangdong,P.R.China523808 City:Dongguan Country:China Declarethat: NameRepresentativeofagent:LisaWang (1) AgentCompanyname:EMTEK(SHENZHEN)CO.,LTD. Address:Bldg69,MajialongIndustryZone,NanshanDistrict,Shenzhen,Guangdong,China City:Shenzhen Country:China isauthorizedtoapplyforCertificationofthefollowingproduct(s): Productdescription:WIRELESSHEADPHONES Typedesignation:HA-A6T,HA-EC25T Trademark:JVC onourbehalf. Date:2022.6.7 City:Dongguan Name:KAIYAN (2) Function:ViceGeneralManager Signature: Notes: (1):RequiredforFCCapplication (2):ForFCCitmustbetheGranteeCode“owner”ortheauthorizedagent.

FCC,Requestfornon-disclosureDate:21-Nov-2018 RF_501,Issue8Page1of1 CompanyName:CosonicIntelligentTechnologiesCo.，Ltd. Address:Room506building1,No.6,SouthIndustrialRoad, SongshanLakeHigh-techIndustrialDevelopmentZone,Dongguan City,Guangdong,P.R.China523808 City:Guangdong Country:China To:TeleficationB.V.,Dept.FCCTCB Edisonstraat12A 6902PKZEVENAAR TheNetherlands Subject:RequestforconfidentialityFCCID:2ALVKHA-A6T Referencenumber:###### DearFCCTCB, 1.Long-TermConfidentiality Pursuantto47CFRSection0.459(a)&(b),weherebyrequestsnon-disclosureandconfidentialtreatment ofthefollowingmaterialssubmittedinsupportofFCCcertificationapplication: Bill(s)ofMaterialBlockDiagrams OperationalDescriptionSchematicDiagramsTune-upProcedure Abovematerialscontainsecrets,proprietaryandtechnicalinformation,whichwouldcustomarilybe guardedfromcompetitorsunder47CFR,section0.457(d)(2).Disclosureorpublicationoranyportionof thiscompanyconfidentialmaterialtootherpartiescouldcausesubstantialcompetitiveharmandprovide unjustifiedbenefitsforcompetitors. 2.Short-TermConfidentiality(STC) PursuanttoPublicNoticeDA04-1705oftheCommission’spolicy,inordertocomplywiththemarketing regulationsin47CFR§2.803andtheimportationrulesin47CFR§2.1204,applicantherebyrequests Short-TermConfidentialtreatmentofthefollowingmaterials(Seenotesbelow): InternalPhotosUser’sManualTestSet-upPhotosExternalPhotos Justification: Date:2022.5.30Nameandsignatureofapplicant:KAIYAN Notes: 1)AdocumentortypeofdocumentcanonlyhaveONEtypeofconfidentiality! 2)Short-Termconfidentialityisinprinciplefor45daysfromdateofgrant;itcanbeextendedmax3times(totaltime180daysmax.)! TheplanneddateshouldstatedintheRF731applicationform. 3)FCCmustbeinformedwhenmarketingbeginsearlier. 4)Releasetakesplaceautomaticallythusextensionmustberequestedintime.Teleficationdoesnotremindyouofthis! 5)RequestforextensionorforreleasemustbereceivedbyTeleficationatleast7daysbeforedateofactualmarketingorbefore expirationoftheSTCperiod

Page 1 of 14 EXTERNAL PHOTOS Page 2 of 14 Page 3 of 14 Page 4 of 14 Page 5 of 14 Page 6 of 14 Page 7 of 14 Page 8 of 14 Page 9 of 14 Page 10 of 14 Page 11 of 14 Page 12 of 14 Page 13 of 14 Page 14 of 14 ----- The End -----

Page1of4 INTERNALPHOTOS Page2of4 Page3of4 Page4of4 -----TheEnd-----

FCCID:2ALVKHA-A6T Portabledevice Accordingto§15.247(i)and§1.1307(b)(1),systemsoperatingundertheprovisionsofthissection shallbeoperatedinamannerthatensuresthatthepublicisnotexposedtoradiofrequencyenergy levelinexcessoftheCommission’sguidelines. AccordingtoKDB447498D01GeneralRFExposureGuidanceV06 The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparationdistances ≤ 50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance,mm)]* [√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz ； PoweranddistanceareroundedtothenearestmWandmmbeforecalculation ； Theresultisroundedtoonedecimalplaceforcomparison； Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtestexclusion. Weuse5mmasseparationdistancetocalculate. P max ≤(3.0*D min )/f CharacteristicsDescription Product WIRELESSHEADPHONES ModelNumber HA-A6T,HA-Z66T,HA-EC25T (Note:allmodelsaredifferentformodelname,radiumcarving,antenna body,matchingcircuitandchargingbox,theothersarethesame.) DeviceType BluetoothV5.3 DataRate 1MbpsforBTV4.2GFSKmodulation 2MbpsforBTV4.2pi/4-DQPSKmodulation 3MbpsforBTV4.28DPSKmodulation Modulation: GFSK,pi/4-DQPSK,8DPSK OperatingFrequency Range(s): 2402-2480MHz NumberofChannels: 79channels DeviceType BluetoothwithBLEmode DataRate1Mbps/2MbpsforGFSKmodulation ModulationGFSK OperatingFrequency Range 2402-2480MHz NumberofChannels40ChannelsforBluetoothDTS Maximummeasuredtransmitterpower: ModeModeChannelFreq.(MHz) MaxTransmit Power (dBm) Maxtune-up power (dBm) Result calculation 1-gSAR Bluetooth DSS GFSK 24024.515 0.980 3.0 24414.495 0.980 3.0 24804.415 0.980 3.0 pi/4-DQPSK 24025.146 1.550 3.0 24415.116 1.550 3.0 24805.116 1.550 3.0 8DPSK 24025.216 1.550 3.0 24415.456 1.550 3.0 24805.366 1.550 3.0 Bluetooth DTS_1M GFSK 24022.183 0.618 3.0 24402.33 0.618 3.0 24802.233 0.618 3.0 Bluetooth DTS_2M GFSK 24022.333 0.618 3.0 24402.443 0.618 3.0 24802.393 0.618 3.0 Conclusion: Forthemaxresult:0.315≤3.0for1-gSARextremitySAR,noSARisrequired.

Report No. ENS2204080109W01102RPage 1 of 57Ver.1.0 TEST REPORT Product Name：WIRELESS HEADPHONES Model Number：HA-A6T, HA-EC25T FCC ID：2ALVKHA-A6T Prepared for: Cosonic Intelligent Technologies Co.，Ltd. Address:Room 506 building 1,No.6,South Industrial Road, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong, P.R.China 523808 Prepared by:EMTEK (SHENZHEN) CO., LTD. Address:Building 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China Tel: (0755) 26954280 Fax: (0755) 26954282 Report Number:ENS2204080109W01102R Date(s) of Tests:April 18, 2022 to May 9, 2022 Date of issue:May 13, 2022 $ 二维码 $ Report No. ENS2204080109W01102RPage 2 of 57Ver.1.0 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION.......................................................................................................................................3 2 EUT TECHNICAL DESCRIPTION ..................................................................................................................................... 5 3 SUMMARY OF TEST RESULT .......................................................................................................................................... 6 4 TEST METHODOLOGY......................................................................................................................................................7 4.1 GENERAL DESCRIPTION OF APPLIED STANDARDS.........................................................................................7 4.2 MEASUREMENT EQUIPMENT USED......................................................................................................................7 4.3 DESCRIPTION OF TEST MODES.............................................................................................................................8 5 FACILITIES AND ACCREDITATIONS .............................................................................................................................. 9 5.1 FACILITIES ..................................................................................................................................................................... 9 5.2 LABORATORY ACCREDITATIONS AND LISTINGS...............................................................................................9 6 TEST SYSTEM UNCERTAINTY......................................................................................................................................10 7 SETUP OF EQUIPMENT UNDER TEST........................................................................................................................11 7.1 RADIO FREQUENCY TEST SETUP 1....................................................................................................................11 7.2 RADIO FREQUENCY TEST SETUP 2 .................................................................................................................... 11 7.3 CONDUCTED EMISSION TEST SETUP ................................................................................................................ 13 7.4 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM.................................................................................14 7.5 SUPPORT EQUIPMENT............................................................................................................................................14 8 TEST REQUIREMENTS....................................................................................................................................................15 8.1 DTS 6DB BANDWIDTH..............................................................................................................................................15 8.2 MAXIMUM PEAK CONDUCTED OUTPUT POWER ............................................................................................ 19 8.3 MAXIMUM POWER SPECTRAL DENSITY ............................................................................................................ 23 8.4 UNWANTED EMISSIONS IN NON-RESTRICTED FREQUENCY BANDS......................................................27 8.5 RADIATED SPURIOUS EMISSION.........................................................................................................................41 8.6 CONDUCTED EMISSIONS TEST............................................................................................................................53 8.7 ANTENNA APPLICATION..........................................................................................................................................56 Report No. ENS2204080109W01102RPage 3 of 57Ver.1.0 1 TEST RESULT CERTIFICATION Applicant: Cosonic Intelligent Technologies Co.，Ltd. Address： Room 506 building 1,No.6,South Industrial Road, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong, P.R.China 523808 Manufacturer: Cosonic Intelligent Technologies Co.，Ltd. Address： Room 506 building 1,No.6,South Industrial Road, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong, P.R.China 523808 EUT:WIRELESS HEADPHONES Model Name: HA-A6T, HA-EC25T (Note: all models are different for model name, radium carving, antenna body, matching circuit and charging box, the others are the same.) Trademark:JVC Measurement Procedure Used: APPLICABLE STANDARDS STANDARDTEST RESULT FCC 47 CFR Part 2 , Subpart J FCC 47 CFR Part 15, Subpart C PASS The above equipment was tested by EMTEK(SHENZHEN) CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10 (2013) and the energy emitted by the sample EUT tested as described in this report is in compliance with the requirements of FCC Rules Part 2 and Part 15.247 The test results of this report relate only to the tested sample identified in this report Date of Test:April 18, 2022 to May 9, 2022 Prepared by: Una Yu/Editor Reviewer: Joe Xia/Supervisor Approved & Authorized Sign…

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Page1of2 TESTSETUPPHOTOS 1.1.PhotosofRadiationEmissionMeasurement SpuriousEmissionTestSetup(30MHz-1GHz) SpuriousEmissionTestSetup(Above1GHz) Page2of2 1.2.ConductedEmissionTest -----TheEnd-----