2A9MI-X2-PROHELMET WIRELESS EARPHONE

FCC Statement: This device complies with part 15 of the FCC Rules. Operation i s subject to t he following tw o 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. 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 guarant ee 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. Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environm ent. This transmitter must not be co‐located or operating in conjunction with any other antenna or transmitter.

ShenzhenYixiTechnologyCo.,LTD (2024.08.30) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(i)requestfor(FCCID:2A9MI-X2-PRO) [ShenzhenYixiTechnologyCo.,LTD](“theapplicant”)certifiesthattheequipmentfor whichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivingan equipmentauthorizationpursuanttosection2.903oftheFCCrules. Sincerely, (Applicantsignature) (Applicantprintedname)QisongWang ShenzhenYixiTechnologyCo.,LTD (2024.08.30) EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(ii)requestfor(FCCID:2A9MI-X2-PRO) [ShenzhenYixiTechnologyCo.,LTD](“theapplicant”)certifiesthat,asofthedateofthe filingoftheapplication,theapplicantisnotidentifiedontheCoveredListasanentity producing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname)QisongWang

PLEASEPRINTON COMPANYLETTERHEAD 2.911(d)(7)USAAgentv1.2 Section2.911(d)(7)USA Agentfor Serviceof Process Companyname:ShenzhenYixi TechnologyCo., LTD Address:SecondFloor, BuildingB, Area A, LongquanSciencePark, DalangHuaxingRoad, LonghuaDistrict,ShenzhenCity ,China ProductName:HELMETWIRELESSEARPHONE FCC ID:2A9MI-X2-pro Model(s):X2-pro 2.911(d)(7)USADesignatedAgentforServiceof Process We, [ ShenzhenYixi TechnologyCo., LTD ] (“the applicant”) designate[Agentlocatedin the United States] NOTE1 for the purposeof acceptingserviceof processon behalfof the applicant. Applicantconsent:We Acknowledgeour consentto acceptserviceof processin the UnitedStatesfor mattersrelatedto the applicableequipment,and at the physicalU.S. addressand email addressof the designatedagent and acknowledgeour acceptanceof our obligationto maintainan agent for serviceof processin the UnitedStatesfor no less than one year after eitherthe granteehas permanently terminatedall marketingand importationof the applicableequipmentwithin the U.S., or the conclusionof any Commission-relatedadministrativeor judicialproceedinginvolvingthe equipment,whicheveris later. Agentobligation:We Acknowledgeour obligationto acceptserviceof processin the UnitedStatesfor mattersrelatedto the applicableequipmentat our physicalU.S. addressand email addressfor no less than one year after either the granteehas permanentlyterminatedall marketingand importationof the applicableequipmentwithinthe U.S., or the conclusionof any Commission-relatedadministrativeor judicialproceedinginvolvingthe equipment,whicheveris later. USA Agent Companyname: TianHengConsulting,LLC Address:392 AndoverStreet,Wilmington,MA 01887,UnitedStates FRN: 0033401258 ContactName:HualingDong TelephoneNo: (617)997-4010 Email: [email protected] Signature:HualingDong Title: President Applicant Company name: Shenzhen Yixi Technology Co., LTD Address:Second Floor, Building B, Area A, Longquan Science Park, Dalang Huaxing Road, Longhua District, Shenzhen City,China Contact Name: Qisong.Wang Telephone No: 13423817655 Email:[email protected] FRN:0033155482 Signature: Title: PurchasingManager Date: 2024-8-21Date: 2024-8-21 NOTE1: An applicantlocatedin the UnitedStatesmay designateitself as the agent for serviceof process. Reference;FederalRegisterdocument2022-28263publishedon 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-th e-communications-supply-chain-through-the

ShenzhenYixiTechnologyCo.,LTD AgentAuthorizationLetter 2024-08-30 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 USA RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeShenzhenMostTechnologyServiceCo.,Ltd.toact onourbehalfinallmattersrelatingtoapplicationforequipmentauthorization,includingthe signingofalldocumentsrelatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothe denialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuse Actof1988,21U.S.C.853(a). Thisagreementexpiresoneyearfromthecurrentdate. Sincerely, Name:QisongWang Position:Manager CompanyName: ShenzhenYixiTechnologyCo.,LTD Address:SecondFloor,BuildingB,AreaA,LongquanSciencePark,Dalang HuaxingRoad,LonghuaDistrict,ShenzhenCity,China Tel/Fax+86-13423817655/N/A E-Mail:[email protected]

ShenzhenYixiTechnologyCo.,LTD LongTermConfidentialityRequestLetter 2024-08-30 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 USA RE:CONFIDENTIALITYREQUESTFOR(FCCID:2A9MI-X2-PRO) ToWhomItMayConcern: Thisletterservesasanofficialrequestforconfidentialityundersections0.457and0.459of CFR47.Wehaverequestedthatthe -e.g.Blockdiagram -e.g.SCH -e.g.OperationalDescription requiredtobesubmittedwiththisapplicationbepermanentlywithheldfrompublicreview. Theabovedocumentsarecompanyproprietaryinformationthatcouldnevergetinto thepossessionofyourcompetition. Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, Name:QisongWang Position:Manager CompanyName: ShenzhenYixiTechnologyCo.,LTD Address:SecondFloor,BuildingB,AreaA,LongquanSciencePark,Dalang HuaxingRoad,LonghuaDistrict,ShenzhenCity,China Tel/Fax+86-13423817655/N/A E-Mail:[email protected]

Model No.: X2-pro FRONT VIEW OF SAMPLE BACK VIEW OF SAMPLE Model No.: X2-pro LEFT VIEW OF SAMPLE RIGHT VIEW OF SAMPLE Model No.: X2-pro TOP VIEW OF SAMPLE BOTTOM VIEW OF SAMPLE Model No.: X2-pro PHOTO OF THE ENTIRE SAMPLE PHOTO OF SAMPLE

FCC ID:2A9MI-X2-PRO

Model No.: X2-pro Page 1 of 3 INTERNAL PHOTO OF SAMPLE INTERNAL PHOTO OF SAMPLE PCB Model No.: X2-pro Page 2 of 3 INTERNAL PHOTO OF SAMPLE PCB INTERNAL PHOTO OF SAMPLE PCB BT antenna Model No.: X2-pro Page 3 of 3 BATTERY PHOTO OF SAMPLE

Shenzhen Most Technology Service Co., Ltd. No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. RF Exposure Evaluation Report Report Reference No. ..................... : FCC ID.. ........................................... : MTEB24080225-H 2A9MI-X2-PRO Compiled by ( position+printed name+signature) .. : File administrators Alisa Luo Supervised by ( position+printed name+signature) .. : Test Engineer Sunny Deng Approved by ( position+printed name+signature) .. : Manager Yvette Zhou Date of issue ..................................... : Aug. 16, 2024 Representative Laboratory Name .: Shenzhen Most Technology Service Co., Ltd. Address ............................................ : No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. Applicant’s name ............................ : Shenzhen Yixi Technology Co., LTD Address ............................................ : Second Floor, Building B, Area A, Longquan Science Park, Dalang Huaxing Road, Longhua District, Shenzhen City,China Test specification/ Standard ..........: 47 CFR Part 1.1307 47 CFR Part 2.1093 TRF Originator .................................. : Shenzhen Most Technology Service Co., Ltd. Shenzhen Most Technology Service Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Most Technology Service Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Most Technology Service Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description .....................: HELMET WIRELESS EARPHONE Trade Mark ....................................... : N/A Model/Type reference....................... : X2-pro Listed Models .................................. : NX-X2 Modulation Type ............................... : GFSK, π/4DQPSK, 8DPSK Operation Frequency ........................ : From 2402MHz to 2480MHz Hardware Version .............................. V1.0 Software Version ............................... V1.2 Rating ............................................... : DC 3.7V by Battery DC 5V by USB Port Result................................................ : PASS Report No.: MTEB24080225-H Page 2 of 5 T E S T R E P O R T Equipment under Test : HELMET WIRELESS EARPHONE Model /Type : X2-pro Listed Models : NX-X2 Remark Only the model name is different, other designs are the same Applicant : Shenzhen Yixi Technology Co., LTD Address : Second Floor, Building B, Area A, Longquan Science Park, Dalang Huaxing Road, Longhua District, Shenzhen City,China Manufacturer : Shenzhen Yixi Technology Co., LTD Address : Second Floor, Building B, Area A, Longquan Science Park, Dalang Huaxing Road, Longhua District, Shenzhen City,China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: MTEB24080225-H Page 3 of 5 1. R e v i s i o n H i s t o r y Revision Issue Date Revisions Revised By 00 2024.08.16 Initial Issue Alisa Luo Report No.: MTEB24080225-H Page 4 of 5 2. S A R E v a l u a t i o n 2.1 RF Exposure Compliance Requirement 2.1.1 Standard Requirement According to KDB447498D01 General RF Exposure Guidance v06 4.3.1. Standalone SAR test exclusion considerations Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Exclusion Threshold condition, listed below, is satisfied. 2.1.2 Limits The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion Report No.: MTEB24080225-H Page 5 of 5 2.1.3 EUT RF Exposure Measurement Data BT classic GFSK Test channel Peak Output Power (dBm) Tune up tolerance (dBm) Maximum tune-up Power (dBm) Lowest(2402MHz) -0.640 -0.640±1 0.36 Middle(2441MHz) -0.532 -0.532±1 0.468 Highest(2480MHz) -1.005 -1.005±1 -0.005 π/4DQPSK Test channel Peak Output Power (dBm) Tune up tolerance (dBm) Maximum tune-up Power (dBm) Lowest(2402MHz) 0.247 0.247±1 1.247 Middle(2441MHz) 0.377 0.377±1 1.377 Highest(2480MHz) -0.089 -0.089±1 0.911 8DPSK Test channel Peak Output Power (dBm) Tune up tolerance (dBm) Maximum tune-up Power (dBm) Lowest(2402MHz) 0.619 0.619±1 1.619 Middle(2441MHz) 0.762 0.762±1 1.762 Highest(2480MHz) 0.344 0.344±1 1.344 Worst case: 8DPSK Channel Maximum Peak Conducted Output Power (dBm) Maximum tune-up Power Calculated value Exclusion threshold SAR Test Exclusion (dBm) (mW) Middle(2441MHz) 0.762 1.762 1.50 0.47 3.0 Yes .......................THE END OF REPORT.........................

ShenzhenMostTechnologyServiceCo.,Ltd. No.5,2ndLangshanRoad,NorthDistrict,Hi-techIndustrialPark,Nanshan, Shenzhen,Guangdong,China. TESTREPORT FCCRulesPart15.247 ReportReferenceNo........................: FCCID.................................................: MTEB24080225-R 2A9MI-X2-PRO Compiledby (position+printedname+signature)..:FileadministratorsAlisaLuo Supervisedby (position+printedname+signature)..:TestEngineerSunnyDeng Approvedby (position+printedname+signature) .. : ManagerYvetteZhou Dateofissue.........................................:Aug.16,2024 RepresentativeLaboratoryName.:ShenzhenMostTechnologyServiceCo.,Ltd. Address ................................................. : No.5,2ndLangshanRoad,NorthDistrict,Hi-techIndustrialPark, Nanshan,Shenzhen,Guangdong,China. Applicant’sname...............................:ShenzhenYixiTechnologyCo.,LTD Address.................................................: SecondFloor,BuildingB,AreaA,LongquanSciencePark,Dalang HuaxingRoad,LonghuaDistrict,ShenzhenCity,China Testspecification/Standard ............ : FCCRulesPart15.247 TRFOriginator......................................:ShenzhenMostTechnologyServiceCo.,Ltd. ShenzhenMostTechnologyServiceCo.,Ltd.Allrightsreserved. Thispublicationmaybereproducedinwholeorinpartfornon-commercialpurposesaslongasthe ShenzhenMostTechnologyServiceCo.,Ltd.isacknowledgedascopyrightownerandsourceofthe material.ShenzhenMostTechnologyServiceCo.,Ltd.takesnoresponsibilityforandwillnotassume liabilityfordamagesresultingfromthereader'sinterpretationofthereproducedmaterialduetoits placementandcontext. Testitemdescription........................: HELMETWIRELESSEARPHONE TradeMark ............................................ : N/A Model/Typereference.........................: X2-pro ListedModels ...................................... :NX-X2 ModulationType .................................. : GFSK,π/4DQPSK,8DPSK OperationFrequency..........................: From2402MHzto2480MHz HardwareVersion................................. V1.0 SoftwareVersion................................... V1.2 Rating.....................................................: DC3.7VbyBattery DC5VbyUSBPort Result.....................................................:PASS ReportNo.:MTEB24080225-RPage 2 of 53 TESTREPORT EquipmentunderTest:HELMETWIRELESSEARPHONE Model/Type:X2-pro ListedModels:NX-X2 RemarkOnlythemodelnameisdifferent,otherdesignsarethesame Applicant:ShenzhenYixiTechnologyCo.,LTD Address: SecondFloor,BuildingB,AreaA,LongquanSciencePark,Dalang HuaxingRoad,LonghuaDistrict,ShenzhenCity,China Manufacturer:ShenzhenYixiTechnologyCo.,LTD Address : SecondFloor,BuildingB,AreaA,LongquanSciencePark,Dalang HuaxingRoad,LonghuaDistrict,ShenzhenCity,China TestResult : PASS Thetestreportmerelycorrespondstothetestsample. Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetest laboratory. ReportNo.:MTEB24080225-RPage 3 of 53 Contents 1REVISIONHISTORY...........................................................................................................................4 2TESTSTANDARDS..............................................................................................................................5 3SUMMARY.................................................................................................................................................6 3.1GeneralRemarks..........................................................................................................................................6 3.2ProductDescription.....................................................................................................................................6 3.3EquipmentUnderTest.................................................................................................................................6 3.4ShortdescriptionoftheEquipmentunderTest(EUT).............................................................................6 3.5EUToperationmode.....................................................................................................................................7 3.6BlockDiagramofTestSetup.......................................................................................................................7 3.7TestItem(EquipmentUnderTest)Description*........................................................................................7 3.8AuxiliaryEquipment(AE)Description........................................................................................................7 3.9AntennaInformation*...................................................................................................................................7 3.10RelatedSubmittal(s)/Grant(s).................................................................................................................8 3.11Modifications...............................................................................................................................................8 3.12EUTconfiguration.......................................................................................................................................8 4TESTENVIRONMENT........................................................................................................................9 4.1Addressofthetestlaboratory....................................................................................................................9 4.2Environmentalconditions............................................................................................................................9 4.3Summaryofmeasurementresults............................................................................................................10 4.4Statementofthemeasurementuncertainty............................................................................................10 4.5EquipmentsUsedduringtheTest......................................................................................................…

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ReportNo.:MTEB24080225-RPage 38 of 53 PulseWidth 8DPSK_3-DH3 NumberofPulsesin31.6seconds 8DPSK_3-DH3 PulseWidth 8DPSK_3-DH5 NumberofPulsesin31.6seconds 8DPSK_3-DH5 ReportNo.:MTEB24080225-RPage 39 of 53 APPENDIXIII.NumberOfHoppingChannel TestResult ModulationPacket NumberofHopping Channel LimitResult GFSKDH57915PASS GFSKDH57915PASS GFSKDH57915PASS π/4DQPSK2-DH57915PASS π/4DQPSK2-DH57915PASS π/4DQPSK2-DH57915PASS 8DPSK3-DH57915PASS 8DPSK3-DH57915PASS 8DPSK3-DH57915PASS TestGraphs HoppingPlot GFSK HoppingPlot GFSK HoppingPlot GFSK HoppingPlot π/4DQPSK HoppingPlot π/4DQPSK HoppingPlot π/4DQPSK ReportNo.:MTEB24080225-RPage 40 of 53 HoppingPlot 8DPSK HoppingPlot 8DPSK HoppingPlot 8DPSK ReportNo.:MTEB24080225-RPage 41 of 53 APPENDIXIV.ConductedPeakOutputPower TestResult Modulation Packet Type Channel Peak Output Power (dBm) Peak Output Power (mW) Max.Avg. Power (dBm) Limit (dBm) Result GFSKDH5 0-0.6400.863None ≤30 PASS 39-0.5320.885NonePASS 78-1.0050.793NonePASS π/4DQPSK2-DH5 00.2471.059None ≤20.97 PASS 390.3771.091NonePASS 78-0.0890.980NonePASS 8DPSK3-DH5 00.6191.153NonePASS 390.7621.192NonePASS 780.3441.082NonePASS ReportNo.:MTEB24080225-RPage 42 of 53 APPENDIXV.99%Bandwidth TestResult ModulationChannelCenterFrequency(MHz)99%BW(MHz) GFSK 024020.86430 3924410.85591 7824800.85214 π/4DQPSK 024021.1837 3924411.1728 7824801.1759 8DPSK 024021.1871 3924411.1849 7824801.1875 TestGraphs GFSK_DH5_Channel0π/4DQPSK_2-DH5_Channel0 GFSK_DH5_Channel39π/4DQPSK_2-DH5_Channel39 GFSK_DH5_Channel78π/4DQPSK_2-DH5_Channel78 ReportNo.:MTEB24080225-RPage 43 of 53 8DPSK_3-DH5_Channel08DPSK_3-DH5_Channel39 8DPSK_3-DH5_Channel78 ReportNo.:MTEB24080225-RPage 44 of 53 APPENDIXVI.20dBBandwidth TestResult ModulationChannelCenterFrequency(MHz)20dBBandwidth(MHz) GFSK 02402MHz0.9530 392441MHz0.9527 782480MHz0.9505 π/4DQPSK 02402MHz1.301 392441MHz1.280 782480MHz1.306 8DPSK 02402MHz1.297 392441MHz1.295 782480MHz1.297 TestGraphs GFSK_DH5_Channel0GFSK_DH5_Channel39 GFSK_DH5_Channel78π/4DQPSK_2-DH5_Channel0 π/4DQPSK_2-DH5_Channel39π/4DQPSK_2-DH5_Channel78 ReportNo.:MTEB24080225-RPage 45 of 53 8DPSK_3-DH5_Channel08DPSK_3-DH5_Channel39 8DPSK_3-DH5_Channel78 ReportNo.:MTEB24080225-RPage 46 of 53 APPENDIXVII.CarrierFrequenciesSeparation TestResult ModulationPacket LeftCenter frequency (MHz) RightCenter frequency (MHz) Hopping Frequency Separation (MHz) Limit(MHz)Result GFSKDH52440.19682441.01920.82240.635PASS GFSKDH52439.88632440.84790.96160.635PASS GFSKDH52439.87822440.88091.00270.634PASS π/4DQPSK2-DH52439.86772440.96371.09600.867PASS π/4DQPSK2-DH52439.9252440.85840.93340.853PASS π/4DQPSK2-DH52439.87552441.04981.17430.871PASS 8DPSK3-DH52440.18032441.18841.00810.865PASS 8DPSK3-DH52439.8622441.00451.14250.863PASS 8DPSK3-DH52439.97182440.880.90820.865PASS TestGraphs GFSKGFSK GFSKπ/4DQPSK π/4DQPSKπ/4DQPSK

ReportNo.:MTEB24080225-RPage 47 of 53 8DPSK8DPSK 8DPSK ReportNo.:MTEB24080225-RPage 48 of 53 APPENDIXVIII.ConductedOutOfBandEmission TestResult Non-Hopping ModulationPacketChannel OOB Emission Frequency (MHz) OOB Emission Level (dBm) Limit (dBm) OverLimit (dB) Result GFSKDH5 0 2399.00-44.264-20.74-23.524PASS 2400.00-50.056-20.74-29.316PASS 4804.40-56.306-20.74-35.566PASS 7205.90-58.891-20.74-38.151PASS 9601.90-33.065-20.74-12.325PASS 9607.50-63.909-20.74-43.169PASS 39 4881.79-55.497-20.53-34.967PASS 7322.67-62.271-20.53-41.741PASS 9757.93-32.683-20.53-12.153PASS 9764.80-62.493-20.53-41.963PASS 78 2483.50-49.975-21.18-28.795PASS 4960.45-54.685-21.18-33.505PASS 7439.41-59.720-21.18-38.540PASS 9914.00-32.606-21.18-11.426PASS 9920.86-63.417-21.18-42.237PASS π/4DQPSK2-DH5 0 2399.00-45.094-20.73-24.364PASS 2400.00-49.437-20.73-28.707PASS 4803.80-57.968-20.73-37.237PASS 7205.90-61.063-20.73-40.333PASS 9601.90-33.551-20.73-12.821PASS 9608.70-62.440-20.73-41.710PASS 39 4881.79-59.145-20.64-38.505PASS 7322.67-62.103-20.64-41.463PASS 9757.93-32.756-20.64-12.116PASS 9763.55-62.796-20.64-42.156PASS 78 2483.50-50.687-21.24-29.447PASS 4959.83-56.284-21.24-35.044PASS 7439.41-62.783-21.24-41.543PASS 9914.00-32.547-21.24-11.307PASS 9920.86-63.164-21.24-41.924PASS 8DPSK3-DH5 0 2399.00-43.349-20.69-22.659PASS 2400.00-48.805-20.69-28.115PASS 4803.80-58.966-20.69-38.276PASS 7205.90-61.652-20.69-40.962PASS 9601.90-33.290-20.69-12.600PASS 9608.70-63.403-20.69-42.713PASS 39 4882.42-59.297-20.82-38.477PASS 7322.67-60.585-20.82-39.765PASS 9757.93-32.867-20.82-12.047PASS 9763.55-61.537-20.82-40.717PASS 78 2483.50-51.086-21.03-30.056PASS 4959.83-59.521-21.03-38.491PASS 7439.41-60.859-21.03-39.829PASS 9914.00-32.836-21.03-11.806PASS 9920.24-62.369-21.03-41.339PASS Hopping ModulationPacketChannel OOB Emission Frequency (MHz) OOB Emission Level (dBm) Limit (dBm) OverLimit (dB) Result GFSKDH5 Hopping 2398.99-43.911-20.94-22.971PASS 2400.00-45.972-20.94-25.032PASS 2483.50-50.805-21.24-29.565PASS 2398.94-44.811-20.91-23.901PASS 2400.00-45.072-20.91-24.162PASS 2483.50-50.742-21.37-29.372PASS 2400.00-45.087-20.9-24.187PASS 2483.50-50.703-21.18-29.523PASS π/4DQPSK2-DH52398.97-46.438-20.86-25.578PASS ReportNo.:MTEB24080225-RPage 49 of 53 2400.00-47.752-20.86-26.892PASS 2483.50-51.525-21.13-30.395PASS 2400.00-47.091-20.85-26.241PASS 2483.50-51.253-21.2-30.053PASS 2398.88-44.085-20.83-23.255PASS 2400.00-45.245-20.83-24.415PASS 2483.50-51.097-21.16-29.937PASS 8DPSK3-DH5 2398.89-46.856-20.73-26.126PASS 2400.00-50.085-20.73-29.355PASS 2483.50-50.468-21.61-28.858PASS 2398.85-46.773-20.85-25.923PASS 2400.00-48.918-20.85-28.068PASS 2483.50-51.670-23.58-28.090PASS 2400.00-48.065-20.93-27.135PASS 2483.50-50.728-21.29-29.438PASS TestGraphs OutOfBandEmission GFSK_DH5_Channel0 OutOfBandEmission π/4DQPSK_2-DH5_Channel0 30.0MHz-25000.0MHz GFSK_DH5_Channel0 30.0MHz-25000.0MHz π/4DQPSK_2-DH5_Channel0 OutOfBandEmission GFSK_DH5_Channel39 OutOfBandEmission π/4DQPSK_2-DH5_Channel39 ReportNo.:MTEB24080225-RPage 50 of 53 30.0MHz-25000.0MHz GFSK_DH5_Channel39 30.0MHz-25000.0MHz π/4DQPSK_2-DH5_Channel39 OutOfBandEmission GFSK_DH5_Channel78 OutOfBandEmission π/4DQPSK_2-DH5_Channel78 30.0MHz-25000.0MHz GFSK_DH5_Channel78 30.0MHz-25000.0MHz π/4DQPSK_2-DH5_Channel78 OutOfBandEmission 8DPSK_3-DH5_Channel0 30.0MHz-25000.0MHz 8DPSK_3-DH5_Channel0 ReportNo.:MTEB24080225-RPage 51 of 53 OutOfBandEmission 8DPSK_3-DH5_Channel39 30.0MHz-25000.0MHz 8DPSK_3-DH5_Channel39 OutOfBandEmission 8DPSK_3-DH5_Channel78 30.0MHz-25000.0MHz 8DPSK_3-DH5_Channel78 OutOfBandEmission(Left) GFSK_DH5_ChannelHopping OutOfBandEmission(Left) π/4DQPSK_2-DH5_ChannelHopping OutOfBandEmission(Right) GFSK_DH5_ChannelHopping OutOfBandEmission(Right) π/4DQPSK_2-DH5_ChannelHopping ReportNo.:MTEB24080225-RPage 52 of 53 OutOfBandEmission(Left) GFSK_DH5_ChannelHopping OutOfBandEmission(Left) π/4DQPSK_2-DH5_ChannelHopping OutOfBandEmission(Right) GFSK_DH5_ChannelHopping OutOfBandEmission(Right) π/4DQPSK_2-DH5_ChannelHopping OutOfBandEmission(Left) GFSK_DH5_ChannelHopping OutOfBandEmission(Left) π/4DQPSK_2-DH5_ChannelHopping OutOfBandEmission(Right) GFSK_DH5_ChannelHopping OutOfBandEmission(Right) π/4DQPSK_2-DH5_ChannelHopping ReportNo.:MTEB24080225-RPage 53 of 53 OutOfBandEmission(Left) 8DPSK_3-DH5_ChannelHopping OutOfBandEmission(Right) 8DPSK_3-DH5_ChannelHopping OutOfBandEmission(Left) 8DPSK_3-DH5_ChannelHopping OutOfBandEmission(Right) 8DPSK_3-DH5_ChannelHopping OutOfBandEmission(Left) 8DPSK_3-DH5_ChannelHopping OutOfBandEmission(Right) 8DPSK_3-DH5_ChannelHopping **********************EndofReport**********************

SHENZHENFEIMINTECHNOLOGYCO.,LTD. 1 深圳市飞敏科技有限公司 ShenZhenFeiMinTechnologyCO.,LTD. 产品承认书 SPECIFICATIONFORAPPROVED 客户 CUSTOMER: 产品名称 PRODUCTS:321610—X6贴片天线 客户料号 PARTNO: 产品型号 Spec.:X6 日期 Data:2021.12.14 备注：承认盖章后请回复一份承认书（或复印件）给我司，其余由贵公司存档 REMARK:Pleasesendusone(orcopy)ofthisapprovalwithstampafteraccepting,othercopiesfiled bythecustomer. 地址：深圳市宝安区西乡街道固戍社区恒南一路C栋厂房303室 ADD:Room303,BuildingC,HengnanoneRoad,Gushucommunity,XixiangStreet,Bao’an District,ShenzhenCity 电话Tel:0755-23035723传真Fax:0755-23036702 邮箱E-mail:[email protected]网址HTTP:www.fmant.cn 客户 CUSTOMER 承认 ACCEPTEDBY 审核 CHECKEDBY 批准 APPROVEDBY 供应商 SUPPLIER 拟制 PREPAREDBY 审核 CHECKEDBY 批准 APPROVEDBY 杨轩 夏兴喜马冬冬 SHENZHENFEIMINTECHNOLOGYCO.,LTD. 深圳市飞敏科技有限公司 ShenzhenFeiminTechnologyCo.,Ltd2 2 1. 项目信息 ProjectInformation 1.1.外观尺寸AppearanceandDimensions SymbolDimension(mm) L（长度） 3.2±0.20 W（宽度） 1.6±0.20 T（厚度） 1.0±0.20 S（电极宽度） 0.4±0.20 SHENZHENFEIMINTECHNOLOGYCO.,LTD. 深圳市飞敏科技有限公司 ShenzhenFeiminTechnologyCo.,Ltd3 3 1.2.天线净空区面积antennaClearancearea 在设计天线时，应远离金属部件和不相关的部件，如电池、振荡器、防护罩、摄像头等，为天线留出 干净的空间。这个间隔简称为净空区。以下是我们建议预留的净空区面积大小。 Whendesigningtheantenna,itshouldbefarawayfrommetalcomponentsandirrelevant componentssuchasbatteries,oscillators,shields,cameras,etc.toleaveacleanspacefortheantenna. Thisintervaliscalledclearancearea.Thefollowingisthesizeofclearanceareawerecommendto reserve. 天线型号（Model） 天线尺寸 （size） 净空区面积 Clearancearea L*W(mm) A1（2.4G单极） 5.5*1.2*1.29.1*5.6 X5（2.4G单极） 5.2*2.2*1.08.7*6.5 X6（2.4Gpifa） 3.2*1.6*1.07.0*6.0 D1（2.4G单极） 5.2*2.2*1.08.7*6.5 D2（2.4G单极） 5.2*2.2*1.08.7*6.5 D3（2.4G单极） 3.4*1.7*1.27.2*6.5 F01（2.4Gpifa） 3.2*1.6*0.47.0*6.0 S2（2.4/5.8G双频） 7.0*3.0*2.09.0*7.0 U1(UHF单极） 15.0*3.0*1.019.0*8.0 G2（GPS单极） 8.5*3.0*1.013.5*7.5 SHENZHENFEIMINTECHNOLOGYCO.,LTD. 深圳市飞敏科技有限公司 ShenzhenFeiminTechnologyCo.,Ltd4 4 1.3.天线Demo测试板DemoTestBoardwithAntenna(Unit:mm) 1.4.匹配电路MatchingCircuit 使用以下推荐的匹配和调谐元件值，在我们的标准25*60mm评估板上，中心频率约为2440mhz。然 而，这些是典型的参考值，当电路板或零件供应商不同时，可能需要更改。 Withthefollowingrecommendedvaluesofmatchingandtuningcomponents,thecenter frequencieswillbeabout2440MHzatourstandard25*60mmevaluationboard.However,theseare typicalreferencevalueswhichmayneedtobechangedwhencircuitboardsorpartvendorsare diffierent. 3 421 系统匹配电路元件(村田) SystemMatchingCircuitComponent（Murata） LocationDesciptionTolerance 10.75pF(0402) ±0.1pF 2NC/ 31.0pF(0402) ±0.1pF 4NC/ SHENZHENFEIMINTECHNOLOGYCO.,LTD. 深圳市飞敏科技有限公司 ShenzhenFeiminTechnologyCo.,Ltd5 5 2. 电特性 ElectricalCharacteristics(25*60mmgroundplane) 2.1.电子表格ElectricalTable 特征Characteristics规范Specifications单位Unit 轮廓尺寸OutlineDimensions 3.2*1.6*1.0mm 工作频率WorkingFrequency 2400-2500MHz 电压驻波比VSWR <2/ 阻抗Impedance 50 Ω 极化Polarization线极化 / 增益Gain 峰值Peak 2dBi 效率Efficiency 50% 2.2.电压驻波比与Smith圆图VSWR&Smith VSWRS11 SHENZHENFEIMINTECHNOLOGYCO.,LTD. 深圳市飞敏科技有限公司 ShenzhenFeiminTechnologyCo.,Ltd6 6 2.3.天线增益与效率GainandEfficiency 测试系统Testsystem Frequency(MHz)Gain(dBi)Efficiency(%) 2400MHz 1.4350.15 2410MHz 1.3850.78 2420MHz 1.4950.49 2430MHz 1.3450.43 2440MHz 1.3050.04 2450MHz 1.5752.50 2460MHz 1.7656.12 2470MHz 1.8957.29 2480MHz 2.0558.23 2490MHz 2.0655.99 2500MHz 2.0653.66 SHENZHENFEIMINTECHNOLOGYCO.,LTD. 深圳市飞敏科技有限公司 ShenzhenFeiminTechnologyCo.,Ltd7 7 2.4.天线辐射方向图Antennaradiationpattern [email protected]@2.44GHz [email protected]@2.44GHz SHENZHENFEIMINTECHNOLOGYCO.,LTD. 深圳市飞敏科技有限公司 ShenzhenFeiminTechnologyCo.,Ltd8 8 3. 包装信息 PackagingInformation 3.1.胶带规范Tapespecification 指数Index A0B0K0P0PP2 φD0 WEFT 尺寸 Dimension( mm) 1.85 ±0.1 3.50 ±0.1 1.30 ±0.1 4.00 ±0.1 4.00 ±0.1 2.00 ±0.1 1.50 +0.1 12.00 ±0.3 1.75 ±0.1 3.20 ±0.1 0.30 ±0.05 1.10链轮孔距累积公差±0.20。10sprocketholepitchcumulativetolerance±0.20. 2.在250毫米中，载体的拱度在1毫米以内。Carriercamberiswithin1mmin250mm. 3.所有尺寸符合EIA-481-C要求。AlldimensionsmeetEIA-481-Crequirements. 4.材料:透明PS。Material:TransparentPS. 5.包装长度每7“卷:12.5米。Pac…

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