Rev1/26/2023 (TelephoneEst(HK)CO.,LTD) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:11-20-2023 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID：2ACE5-ES24AR [TelephoneEst(HK)CO.,LTD](“theapplicant”)certifiesthattheequipmentforwhichauthorizationis soughtisnot“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuantto section2.903oftheFCCrules. Sincerely, (Applicantsignature) (HonghongChen) Rev1/26/2023 (TelephoneEst(HK)CO.,LTD) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:11-20-2023 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID：2ACE5-ES24AR [TelephoneEst(HK)CO.,LTD](“theapplicant”)certifiesthat,asofthedateofthefilingoftheapplication, theapplicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiaries oraffiliates)asanentityproducing“covered” equipment. Sincerely, (Applicantsignature) (HonghongChen)

Cover Letter(s)

TelephoneEst(HK)CO.,LTD Rev11/20/07 FederalCommunicationsCommission AuthorizationandEvaluationDivision ConfidentialityRequestregardingapplicationforcertificationofFCCID:2ACE5-ES24AR PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestconfidential treatmentofinformationaccompanyingthisapplicationasoutlinedbelow: ExhibitTypeFileName BlockDiagram Schematics OperationalDescription BlockDiagram Schematics OperationalDescription Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedto thepublic.Thepublicdisclosureofthesematerialsmaybeharmfultotheapplicantandprovide unjustifiedbenefitstoitscompetitors. TheapplicantunderstandsthatpursuanttoSection0.457oftheRules,disclosureofthis applicationandallaccompanyingdocumentationwillnotbemadebeforethedateoftheGrant forthisapplication. PursuanttoDA04-1705June15,2004oftheCommission’spublicnotice,Wealsorequestingthe commissiontograntshort-termconfidentialityrequestonthefollowingattachmentsuntil180 daysaftertheGrantDateofEquipmentAuthorizations. ExhibitTypeFileName Sincerely, HonghongChen 2023.11.20

Cover Letter(s)

Declarationonmodeldifference Wetheundersignedherebyconfirmthatthesemodelsareidentical,andallmodelshavethesame RFmodule,PCBlayout,Antenna,schematicsandcomponent.Onlydifferentonmodelnameand color. ProductionnameTrademarkFCCModelno. BluetoothAuxReceiverVIVITAR2ACE5-ES24ARES24-AR-TA,AR-ES24-BL, AR-ES24-PL Confirmedby: HonghongChen TelephoneEst(HK)CO.,LTD 2023.11.20

Cover Letter(s)

TelephoneEst(HK)CO.,LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Date:2023.11.20 SUBJECT:FCCApplicationforFCCID:2ACE5-ES24AR ToWhomItMayConcern: We,theundersigned,herebyauthorizeSamLv.atEMTEK(DONGGUAN)CO.,LTD.on ourbehalf,toapplytotheFederalCommunicationsCommissiononourequipment.Any andallactscarriedoutbyEMTEK(DONGGUAN)CO.,LTD.onourbehalfshallhave thesameeffectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct.We,the applicant,arenotsubjecttoadenialoffederalbenefitspursuanttoSection5301ofthe Anti-DrugActof1988,21USC853a,andnopartytotheapplicationissubjecttoadenial offederalbenefitspursuanttothatsection. Regards, Sincerely, HonghongChen 2023.11.20

External Photos

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Internal Photos

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RF Exposure Info

ReportNo.EDG2311060246E00402RPage1of7Ver.1.0 TESTREPORT ProductName：BluetoothAuxReceiver ModelNumber：ES24-AR-TA,AR-ES24-BL,AR-ES24-PL FCCID：2ACE5-ES24AR Preparedfor:TelephoneEst(HK)CO.,LTD Address:Room709,7F,FuLitianhecommercialbuilding,LinheEast Roadandtianhedistrict,Guangzhou,China Preparedby:EMTEK(DONGGUAN)CO.,LTD. Address:-1&2/F.,Building2,ZoneA,ZhongdaMarineBiotechnology ResearchandDevelopmentBase,No.9,XinchengAvenue, SongshanhuHigh-technologyIndustrialDevelopmentZone, Dongguan,Guangdong,China TEL:+86-0769-22807078 FAX:+86-0769-22807079 ReportNumber:EDG2311060246E00402R Date(s)ofTests:November06,2023toNovember16,2023 Dateofissue:November16,2023 $二维码$ ReportNo.EDG2311060246E00402RPage2of7Ver.1.0 TableofContents 1.TESTRESULTCERTIFICATION...............................................................................................................................................3 2.EUTSPECIFICATION.................................................................................................................................................................5 3.TESTREQUIREMENT................................................................................................................................................................6 4.MEASUREMENTRESULT.........................................................................................................................................................6 ReportNo.EDG2311060246E00402RPage3of7Ver.1.0 1.TESTRESULTCERTIFICATION Applicant:TelephoneEst(HK)CO.,LTD Address: Room709,7F,FuLitianhecommercialbuilding,LinheEastRoadandtianhe district,Guangzhou,China Manufacturer:TelephoneEstElectronicsFactory(ZhongShan) Address:NO.2ShengfengHeyuanRoad,XiaolanTown,Zhongshan,Guangdong,China EUT:BluetoothAuxReceiver ModelName:ES24-AR-TA,AR-ES24-BL,AR-ES24-PL Trademark:VIVITAR MeasurementProcedureUsed: APPLICABLESTANDARDS STANDARDTESTRESULT §15.247(i),§2.1093 PASS TheaboveequipmentwastestedbyEMTEK(DONGGUAN)CO.,LTD.Thetestdata,dataevaluation,test procedures,andequipmentconfigurationsshowninthisreportweremadeinaccordancewiththeprocedures giveninANSIC63.10(2013)andtheenergyemittedbythesampleEUTtestedasdescribedinthisreportisin compliancewiththerequirementsofFCCRulesFCC§15.247(i),§2.1093. Thetestresultsofthisreportrelateonlytothetestedsampleidentifiedinthisreport DateofTest:November06,2023toNovember16,2023 Preparedby: WarrenDeng/ Editor Reviewer: TimDong/ Supervisor Approve&AuthorizedSigner: SamLv/Manager ReportNo.EDG2311060246E00402RPage4of7Ver.1.0 ModifiedHistory VersionReportNo.RevisionDateSummary EDG2311060246E00402R/OriginalReport ReportNo.EDG2311060246E00402RPage5of7Ver.1.0 2. EUTSpecification CharacteristicsDescription Product:BluetoothAuxReceiver ModelNumber: ES24-AR-TA,AR-ES24-BL,AR-ES24-PL Allmodelsarethesameexceptthemodelnameandcolor.Here, ES24-AR-TAisselectedforalltests. Sample:1# DataRate: 1MbpsforGFSKmodulation 2Mbpsforπ/4-DQPSKmodulation 3Mbpsfor8DPSKmodulation Modulation: GFSK,π/4-DQPSK,8DPSK OperatingFrequency Range(s): 2402-2480MHz NumberofChannels: 79channels TransmitPowerMax: -10.44dBm(0.000090W) AntennaGain:-0.58dBi Powersupply: DC5VfromUSB DC3.7Vfrombattery Evaluationapplied:MPEEvaluation SAREvaluation ReportNo.EDG2311060246E00402RPage6of7Ver.1.0 3. TestRequirement SAREvaluation Accordingto447498D01V06,systemsoperatingundertheprovisionsofthissectionshallbeoperatedina mannerthatensuresthatthepublicisnotexposedtoradiofrequencyenergylevelinexcessofthe Commission’sguidelines. RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,usingmeasurementsorcomputer simulation.WhenroutineSARevaluationisnotrequired,portabletransmitterswithoutputpowergreaterthan theapplicablelowthresholdrequireSARevaluationtoqualityforTCBapproval. OneantennaisavailablefortheEUT.Theminimumseparationdistanceis5mm. ReportNo.EDG2311060246E00402RPage7of7Ver.1.0 4. MeasurementResult Antennagain:-0.58dBi Transmit Frequency( MHz) Mode Measured Power (dBm) E.I.R.P(d Bm) Tune upPower (dBm) Maxtuneup power(dBm) Calculation Result 1-g SAR 2402GFSK -11.04-11.62-10±1-11 0.02462163 2441GFSK-11.33-11.91-10±1-110.02482073 2480GFSK-14.03-14.61-15±1-140.01253883 2402Π/4-DQPSK-10.44-11.02-11±1-100.03099683 2441Π/4-DQPSK-11.39-11.97-12±1-110.02482073 2480Π/4-DQPSK-14.18-14.76-15±1-140.01253883 24028DPSK-10.55-11.13-11±1-100.03099683 24418DPSK-11.3-11.88-12±1-110.02482073 24808DPSK-14.44-15.02-15±1-140.01253883 AccordingtoKDB447498D01V06,nostand-alonerequiredforBTantenna,andnosimultaneousSAR measurementisrequired. ***EndofReport***

Test Report

Summary InvertedFAntennaSpecification ITEMANTSPEC ModelName2.4GANT Center Frequency HorizontalVertical 2400MHz2400MHz2500MHz2400MHz2400MHz2500MHz -1.26-0.76-0.58-5.25-2.46-1.86 MAX.Gain Polarizatio -0.58dBi nHorizontalandVertical AzimuthBeam Pattern Omni-directional Impedance50Ohm AntennaLength Manufactur 10.70mm eZHUHAIJIELITECHNOLOGYCO.,LTD AntennaPhoto&Length(mm) Horizontal:2400MHz2450MHz2500MHz Power(dBm) Max:0Min:-40Scale:5/div Frequency (MHz) Ma Gain(dBi) xMinAvg 2400-1.26174-30.0801-7.18716 2450-0.765802-36.5604-7.48023 2500-0.585582-22.0315-6.59127 Vertical:2400MHz2450MHz2500MHz Power(dBm) Max:0Min:-30Scale:5/div Frequency (MHz) Ma Gain(dBi) xMinAvg 2400-5.2537-22.1424-12.4294 2450-2.4652-24.5837-10.4702 2500-1.86120-29.5214-9.20432 ANTTestLabs：AttestationofGlobalComplianceCo.,Ltd.

Test Report

ReportNo.EDG2311060246E00401RPage1of72Ver.1.0 TESTREPORT ProductName：BluetoothAuxReceiver ModelNumber：ES24-AR-TA,AR-ES24-BL,AR-ES24-PL FCCID：2ACE5-ES24AR Preparedfor:TelephoneEst(HK)CO.,LTD Address:Room709,7F,FuLitianhecommercialbuilding,LinheEast Roadandtianhedistrict,Guangzhou,China Preparedby:EMTEK(DONGGUAN)CO.,LTD. Address:-1&2/F.,Building2,ZoneA,ZhongdaMarineBiotechnology ResearchandDevelopmentBase,No.9,XinchengAvenue, SongshanhuHigh-technologyIndustrialDevelopmentZone, Dongguan,Guangdong,China TEL:+86-0769-22807078 FAX:+86-0769-22807079 ReportNumber:EDG2311060246E00401R Date(s)ofTests:November06,2023toNovember16,2023 Dateofissue:November16,2023 $二维码$ ReportNo.EDG2311060246E00401RPage2of72Ver.1.0 TableofContents 1TESTRESULTCERTIFICATION..................................................................................................................................................3 2EUTTECHNICALDESCRIPTION.................................................................................................................................................5 3SUMMARYOFTESTRESULT.....................................................................................................................................................6 4TESTMETHODOLOGY.................................................................................................................................................................7 4.1GENERALDESCRIPTIONOFAPPLIEDSTANDARDS......................................................................................................7 4.2MEASUREMENTEQUIPMENTUSED..................................................................................................................................7 4.3DESCRIPTIONOFTESTMODES..........................................................................................................................................8 5FACILITIESANDACCREDITATIONS........................................................................................................................................9 5.1FACILITIES..............................................................................................................................................................................9 5.2EQUIPMENT............................................................................................................................................................................9 5.3LABORATORYACCREDITATIONSANDLISTINGS.........................................................................................................9 6TESTSYSTEMUNCERTAINTY.................................................................................................................................................10 7SETUPOFEQUIPMENTUNDERTEST.....................................................................................................................................11 7.1RADIOFREQUENCYTESTSETUP1.................................................................................................................................11 7.2RADIOFREQUENCYTESTSETUP2.................................................................................................................................11 7.3CONDUCTEDEMISSIONTESTSETUP.............................................................................................................................13 7.4BLOCKDIAGRAMCONFIGURATIONOFTESTSYSTEM.............................................................................................14 7.5SUPPORTEQUIPMENT........................................................................................................................................................14 8FREQUENCYHOPPINGSYSTEMREQUIREMENTS...............................................................................................................15 8.1StandardApplicable.................................................................................................................................................................15 8.2EUTPseudorandomFrequencyHoppingSequence................................................................................................................15 8.3EqualHoppingFrequencyUse................................................................................................................................................16 8.4FrequencyHoppingSystem.....................................................................................................................................................16 9TESTREQUIREMENTS...............................................................................................................................................................17 9.120DB&99%BANDWIDTH.....................................................................................................................................................17 9.2CARRIERFREQUENCYSEPARATION..............................................................................................................................29 9.3NUMBEROFHOPPINGFREQUENCIES............................................................................................................................32 9.4AVERAGETIMEOFOCCUPANCY(DWELLTIME)........................................................................................................35 9.5MAXIMUMPEAKCONDUCTEDOUTPUTPOWER.........................................................................................................41 9.6CONDUCTEDSUPRIOUSEMISSION.................................................................................................................................48 9.7RADIATEDSPURIOUSEMISSION.....................................................................................................................................58 9.8CONDUCTEDEMISSIONTEST...........................................................................................................................................67 9.9ANTENNAAPPLICATION........…

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Test Setup Photos

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