2ADZC-M28T1Wireless Microphone

ShenzhenHollylandTechnologyCo.,Ltd Date:17June2026 To:FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Attestation Section2.911(d)(5)(i)andSection2.911(d)(5)(ii) (KDB986446D01CoveredEquipment) Section2.911(d)(5)(i) ShenzhenHollylandTechnologyCo.,Ltd(“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtisnot“covered”equipmentprohibited fromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules. Thesoftwaretobeloadedpriortomarketingoftheequipmentidentifiedbelowisnot "covered"softwaremanufacturedbyanyentityincludingpredecessors,successors, parents,subsidiaries,oraffiliatesoranyentitywhichhasrebrandedorrelabeledthe softwareproducedbytheentity(ies)identifiedonthe"CoveredList"DA24-886and KDB986446D01CoveredEquipmentGuidancesectionB(2a). ShenzhenHollylandTechnologyCo.,Ltd(“theapplicant”)furthercertifiesthatno Cybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc.or anyofitssuccessorsandassignees,includingequipmentwithintegratedKaspersky Lab,Inc.(oranyofitssuccessorsandassignees)cybersecurityoranti-virussoftware isinstalledintheequipmentbeingcertified. Section2.911(d)(5)(ii) ShenzhenHollylandTechnologyCo.,Ltd(“theapplicant”)certifiesthat,asofthe dateofthefilingoftheapplication,theapplicant[isnot]identifiedontheCoveredList (asaspecificallynamedentityoranyofitssubsidiariesoraffiliates)asanentity producing“covered”equipment. TypeofEquipmentsubjecttoFCCCertification:FCCID:2ADZC-M28T1 Ifyouhaveanyquestions,pleasefeelfreetocontactme ContactPerson:VincentMa PositionintheCompany:SalesDirector DateofSignature:2026/6/7 ___________________________ Signatory (signatureoftheapplicant)

[ShenzhenHollylandTechnologyCo.,Ltd] Rev1/26/2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:17-Jun-26 Ref:AttestationStatementsPart2.911(d)(7)Filing FCCID:2ADZC-M28T1 FRN：0024211138 [ShenzhenHollylandTechnologyCo.,Ltd](“theapplicant”)certifiesthat,asofthedateofthefilingofthe application,HEVOTECHNOLOGYCORPORATIONisourdesignatedU.S.agentforserviceofprocessfor theabovereferencedFCCID.[ShenzhenHollylandTechnologyCo.,Ltd]acceptstomaintainanagentfor nolessthanoneyearafterthegranteehasterminatedallmarketingandimportationortheconclusion ofanyCommission-relatedproceedinginvolvingtheequipment.HEVOTECHNOLOGYCORPORATION HEVOTECHNOLOGYCORPORATIONaccepts,asofthedateofthefilingoftheapplication,theobligation ofthedesignatedU.S.agentforserviceofprocessfortheabovereferencedFCCID. DesignatedU.S.AgentInformation: Name:HEVOTECHNOLOGYCORPORATION FRN：0033495417 Address:4EXECUTIVECIRCLE,SUITE120IRVINECALIFORNIA92614UnitedStates ContactPerson:vincent.ma Tel.:(949)-932-0648 Email:[email protected] Sincerely, [ShenzhenHollylandTechnologyCo.,Ltd]HEVOTECHNOLOGYCORPORATION (VincentMa)(vincent.ma) (Applicantsignature)(USAgentSignature)

Date:17June2026 ShenzhenHollylandTechnologyCo.,Ltd To:FederalCommunicationsCommission, Authorization&EvaluationDivision, 7435OaklandMillsRoad, Columbia,MD21046 ToWhomItMayConcern: TheShenzhenHollylandTechnologyCo.,Ltdtheundersigned,herebyauthorizesMr.Wu XuewenfromShenzhenBALUNTechnologyCo.,Ltd.,toactonthebehalfoftheShenzhen HollylandTechnologyCo.,LtdsolelyinmattersrelatingtotheapplicationforanFCCequipment authorizationforFCCID:2ADZC-M28T1includingthesigningofdocumentsinconnectionwith thisApplication.NecessaryactscarriedoutbyShenzhenBALUNTechnologyCo.,Ltd.in connectionwiththeApplicationshallhavethesameeffectasactsoftheShenzhenHollyland TechnologyCo.,Ltd TheShenzhenHollylandTechnologyCo.,Ltdalsoherebycertifythatnopartytothisapplication issubjecttoadenialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti- DrugAbuseActof1988,21U.S.C.Section862. YoursSincerely, VincentMa

Date:17June2026 ShenzhenHollylandTechnologyCo.,Ltd To:FederalCommunicationsCommission, Authorization&EvaluationDivision, 7435OaklandMillsRoad, Columbia,MD21046 Re:ShenzhenHollylandTechnologyCo.,Ltd FCCID:2ADZC-M28T1 FCCCertificationConfidentialityRequest Gentlemen: Thisletteristocomplywith47CFR0.457and0.459pertainingtoconfidentiality material.ShenzhenHollylandTechnologyCo.,Ltdrequeststhatthefollowing documentsregardingthissubmissionforFCCID:2ADZC-M28T1bekept confidential: ExhibitTypeFileName BlockDiagramBlockDiagram.pdf SchematicsSchematics.pdf OperationalDescriptionOperationalDescription.pdf Tune-upTune-up.PDF Andbelowexhibitkeptshort-termconfidential(180days): ExternalphotosExternalphotos.pdf Testsetupphotostestphoto.pdf InternalphotosInternalphotos.pdf UsermanualUsermanual.pdf Thosedocumentscontaindetailedsystemandequipmentdescriptionandrelated informationabouttheproductwhichShenzhenHollylandTechnology Co.,Ltdconsiderstobeconfidentialproprietary,acustomdesignand,otherwise, notreleasabletothegeneralpublic.Sincethisdesignisabasisformwhichfuture technologicalproductswillevolve,ShenzhenHollylandTechnologyCo.,Ltd considersthisinformationwouldbeofbenefittoitscompetitors,andthatthe disclosureoftheinformationinthesedocumentswouldgivecompetitorsanunfair advantageinthemarket. YoursSincerely, VincentMa

Report No.: Ti-EE26040519-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 33 Web: www.titcgroup.com Template No.: TRP-FCC DASY-Body-1 (2026-04-30) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen TEST REPORT Applicant: Shenzhen Hollyland Technology Co., Ltd. Address: 8F, Building 5D, Skyworth Innovation Valley, Tangtou Road, Shiyan Street, Baoan District, Shenzhen, 518055 China Equipment Type: Wireless Microphone Model Name: M28T1 Brand Name: FCC ID: 2ADZC-M28T1 Test Standard: FCC 47 CFR Part 2.1093 (refer to section 3.1) Maximum SAR: Body 2.4GHz(1 g@0mm): 0.35 W/kg Sample Arrival Date: Apr. 23, 2026 Test Date: May 22, 2026 Date of Issue: Jun. 11, 2026 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Guo Guangwei Checked by: Xu Rui Approved by: Liao Jianming (Technical Director) _______________ _______________ _______________ Report No.: Ti-EE26040519-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 33 Web: www.titcgroup.com Template No.: TRP-FCC DASY-Body-1 (2026-04-30) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen Revision History Version Issue Date Revisions Content Rev. 01 Jun. 11, 2026 Initial Issue TABLE OF CONTENTS 1 GENERAL INFORMATION ........................................................................................................ 4 1.1 Test Laboratory ............................................................................................................ 4 1.2 Test Location ................................................................................................................ 4 1.3 Test Environment Condition .......................................................................................... 4 2 PRODUCT INFORMATION ....................................................................................................... 5 2.1 Applicant Information .................................................................................................... 5 2.2 Manufacturer Information .............................................................................................. 5 2.3 General Description for Equipment under Test (EUT) ................................................... 5 2.4 Ancillary Equipment ...................................................................................................... 5 2.5 Technical Information ................................................................................................... 6 2.6 Antenna Location Sketch .............................................................................................. 7 3 SUMMARY OF TEST RESULT ................................................................................................. 8 3.1 Test Standards ............................................................................................................. 8 3.2 Device Category and SAR Limit ................................................................................... 9 3.3 Test Result Summary ................................................................................................. 10 3.4 Test Uncertainty ......................................................................................................... 11 4 MEASUREMENT SYSTEM ..................................................................................................... 12 4.1 Specific Absorption Rate (SAR) Definition .................................................................. 12 4.2 DASY SAR System .................................................................................................... 13 5 SYSTEM VERIFICATION ........................................................................................................ 20 5.1 Purpose of System Check .......................................................................................... 20 5.2 System Check Setup .................................................................................................. 20 6 TEST POSITION CONFIGURATIONS .................................................................................... 21 6.1 Body-worn Position Conditions ................................................................................... 21 Report No.: Ti-EE26040519-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 33 Web: www.titcgroup.com Template No.: TRP-FCC DASY-Body-1 (2026-04-30) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen 7 MEASUREMENT PROCEDURE ............................................................................................. 22 7.1 Measurement Process Diagram ................................................................................. 22 7.2 SAR Scan General Requirement ................................................................................ 23 7.3 Measurement Procedure ............................................................................................ 24 7.4 Area & Zoom Scan Procedure .................................................................................... 24 8 CONDUCTED RF OUTPUT POWER ...................................................................................... 25 9 TEST RESULT ........................................................................................................................ 26 9.1 2.4G ISM Band ........................................................................................................... 26 10 SAR Measurement Variability .................................................................................................. 27 11 SIMULTANEOUS TRANSMISSION ......................................................................................... 28 12 TEST EQUIPMENTS LIST ................…

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Report No.: Ti-EE26040519-AC 1 / 32 CALIBRATION REPORT F.1 E-Field Probe (EX3DV4 - SN:7664) Report No.: Ti-EE26040519-AC 2 / 32 Report No.: Ti-EE26040519-AC 3 / 32 Report No.: Ti-EE26040519-AC 4 / 32 Report No.: Ti-EE26040519-AC 5 / 32 Report No.: Ti-EE26040519-AC 6 / 32 Report No.: Ti-EE26040519-AC 7 / 32 Report No.: Ti-EE26040519-AC 8 / 32 Report No.: Ti-EE26040519-AC 9 / 32 Report No.: Ti-EE26040519-AC 10 / 32 Report No.: Ti-EE26040519-AC 11 / 32 Report No.: Ti-EE26040519-AC 12 / 32 Report No.: Ti-EE26040519-AC 13 / 32 Report No.: Ti-EE26040519-AC 14 / 32 Report No.: Ti-EE26040519-AC 15 / 32 Report No.: Ti-EE26040519-AC 16 / 32 Report No.: Ti-EE26040519-AC 17 / 32 Report No.: Ti-EE26040519-AC 18 / 32 Report No.: Ti-EE26040519-AC 19 / 32 Report No.: Ti-EE26040519-AC 20 / 32 Report No.: Ti-EE26040519-AC 21 / 32 Report No.: Ti-EE26040519-AC 22 / 32 Report No.: Ti-EE26040519-AC 23 / 32 F.2 Data Acquisition Electronics (DAE4 - SN:1710) Report No.: Ti-EE26040519-AC 24 / 32 Report No.: Ti-EE26040519-AC 25 / 32 Report No.: Ti-EE26040519-AC 26 / 32 F.3 2450 MHz Dipole Report No.: Ti-EE26040519-AC 27 / 32 Report No.: Ti-EE26040519-AC 28 / 32 Report No.: Ti-EE26040519-AC 29 / 32 Report No.: Ti-EE26040519-AC 30 / 32 Report No.: Ti-EE26040519-AC 31 / 32 Report No.: Ti-EE26040519-AC 32 / 32 D2450V2 Dipole impedance and return loss Validation Meas. Results Current Meas. Previous Meas. Max. Deviation Meas. Data 2026.05.06 2025.05.06 / Return Loss(dB) -24.133 -27.271 -11.51% Impedance 51.716 Ω + 5.464 jΩ 51.780 Ω + 5.716 jΩ -0.252Ω (Imaginary part) --END OF REPORT--

8 CONDUCTED RF OUPUT POWER 8.1 2.4G ISM Band Output Power Ti-EE26040519-AP 1/2 8.1 2.4G ISM Band Output Power test ModeModulation Channel number Fre.(MHz) output power(dBm) tune up power(dBm) SAR Test 2.4G ISM Band 2M Low240212.41 13.00 Yes Mid244012.43 13.00 Yes High2480 12.76 13.00 Yes Ti-EE26040519-AP 2/2

Ti-EE26040519-ASC 1/1 SystemCheck:2450Mhz Date:2026.05.22 CommunicationSystemBand:D2450(2450.0MHz);Frequency:2450MHz;DutyCycle:1:1 Mediumparametersused(interpolated):f=2450MHz;σ=1.824S/m;ε r =38.757;ρ=1000kg/m 3 Phantomsection:FlatSection AmbientTemperature:22.5°CLiquidTemperature:21.7°C DASY5Configuration: Probe:EX3DV4-SN7664;ConvF(7.8,7.8,7.8);Calibrated:2025.06.30 Sensor-Surface:4mm(MechanicalSurfaceDetection) Electronics:DAE4Sn1710;Calibrated:2026.01.12 Phantom:SAM1;Type:QD000P40CD;Serial:TP:1576 MeasurementSW:DASY52,Version52.8(8);SEMCADXVersion14.6.13(7331) CW2450100mw/AreaScan(81x81x1):Interpolatedgrid:dx=1.200mm,dy=1.200mm MaximumvalueofSAR(interpolated)=6.72W/kg CW2450100mw/ZoomScan(7x7x7)/Cube0:Measurementgrid:dx=5mm,dy=5mm,dz=5mm ReferenceValue=51.27V/m;PowerDrift=0.07dB PeakSAR(extrapolated)=10.8W/kg SAR(1g)=5.23W/kg;SAR(10g)=2.37W/kg Smallestdistancefrompeakstoallpoints3dBbelow=10.2mm RatioofSARatM2toSARatM1=53.5% MaximumvalueofSAR(measured)=6.42W/kg 0dB=6.42W/kg

Ti-EE26040519-ATD 1 / 1 Meas.1BodyPlanewith BackSide 0mmon HighChannelin 2.4GHz ISM Bandmodewith ANT1 Date:2026.05.22 CommunicationSystemBand:1; Frequency:2480MHz;DutyCycle:1:1.176 Mediumparametersused (interpolated):f = 2480MHz;σ = 1.873S/m; ε r = 38.479;ρ = 1000kg/m 3 Phantomsection:FlatSection AmbientTemperature:22.5°C LiquidTemperature:21.7°C DASY5Configuration: Probe:EX3DV4- SN7664;ConvF(7.8, 7.8, 7.8);Calibrated:2025.06.30 Sensor-Surface:4mm(MechanicalSurfaceDetection) Electronics:DAE4Sn1710; Calibrated:2026.01.12 Phantom:SAM1;Type:QD000P40CD;Serial:TP:1576 MeasurementSW:DASY52,Version52.8(8);SEMCADX Version14.6.13(7331) ChHigh/AreaScan(51x51x1):Interpolatedgrid:dx=1.200mm,dy=1.200mm MaximumvalueofSAR(interpolated)= 0.395W/kg ChHigh/ZoomScan(7x7x7)/Cube0:Measurementgrid:dx=5mm,dy=5mm,dz=5mm ReferenceValue= 12.96V/m;PowerDrift= -0.04dB PeakSAR(extrapolated)= 0.723W/kg SAR(1g)= 0.284W/kg;SAR(10g)= 0.109W/kg Smallestdistancefrompeakstoallpoints3 dBbelow= 6.5mm RatioofSARatM2toSARatM1= 55.4% MaximumvalueofSAR(measured)= 0.331W/kg 0 dB= 0.331W/kg

AntennaSampleDatasheet entryname：A6118-TX AntennaType Monopole AntennaMaterialPCB edition：A0 Date：2026.04.23 Antennamanufacturer:HongjiWirelessCommunication(Shenzhen)Co.,LTD http://www.honant.com.cn Address:12/F,WestBlockB,Building8,HuaqiangCreativeIndustryPark,SightseeingRoad, GuangmingDistrict,Shenzhen Contents 1：Antennatestequipment.............................1 2：Passivetestreport................................3 3：Structuraldrawing.................................5 4：Antennadiagram....................................6 1 1 ： Antennatestequipment Listofmeters：Agilent5071B； 1.1TheprinciplediagramoftheETSanochoic chamber Picture1.Antennastatictestconnectionmethod 2 1.2PicturesoftheETSanochoicchamber InsidetheETSanochoicchamber TestMachine 3 2 ： Passivetestreport 2.1：AntennaS11parameters 4 2.2：Passiveefficiencyofantenna 频点MHz增益(dBi)效率(dB) 2400-1.0530.83 2410-1.0130.7 2420-0.9830.42 2430-0.6431.22 2440-0.4232.02 2450-0.2332.55 24600.1233.71 24700.334.7 24800.1533.79 2.3：PassivepatternofBTantenna 5 3 ： Structuraldrawing-right 6 4:Antennadiagram

Report No.: Ti-EE26040519-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 50 Web: www.titcgroup.com Template No.: TRP-FCC&ISED RSS 247 (2022-01-12) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen TEST REPORT Applicant: Shenzhen Hollyland Technology Co., Ltd. Address: 8F, Building 5D, Skyworth Innovation Valley, Tangtou Road, Shiyan Street, Baoan District, Shenzhen, 518055 China Equipment Type: Wireless Microphone Model Name: M28T1 Brand Name: FCC ID: 2ADZC-M28T1 ISED Number: 29803-M28T1 Test Standard: 47 CFR Part 15 Subpart C RSS-Gen Issue 5 RSS-247 Issue 4 (refer to section 3.1) Sample Arrival Date: Apr. 23, 2026 Test Date: Apr. 27, 2026 - May 07, 2026 Date of Issue: Jun. 11, 2026 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Li Renyu Checked by: Li Ganming Approved by: Tolan Tu (Testing Director) _______________ _______________ _______________ Report No.: Ti-EE26040519-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 50 Web: www.titcgroup.com Template No.: TRP-FCC&ISED RSS 247 (2022-01-12) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen Revision History Version Issue Date Revisions Rev. 01 Jun. 11, 2026 Initial Issue TABLE OF CONTENTS 1 GENERAL INFORMATION ........................................................................................................ 4 1.1 Test Laboratory ............................................................................................................ 4 1.2 Test Location ................................................................................................................ 4 2 PRODUCT INFORMATION ....................................................................................................... 5 2.1 Applicant Information .................................................................................................... 5 2.2 Manufacturer Information .............................................................................................. 5 2.3 General Description for Equipment under Test (EUT) ................................................... 5 2.4 Technical Information ................................................................................................... 6 3 SUMMARY OF TEST RESULTS ............................................................................................... 7 3.1 Test Standards ............................................................................................................. 7 3.1 Verdict .......................................................................................................................... 8 4 GENERAL TEST CONFIGURATIONS ...................................................................................... 9 4.1 Test Environments ........................................................................................................ 9 4.2 Test Equipment List ...................................................................................................... 9 4.3 Test Software List ......................................................................................................... 9 4.4 Measurement Uncertainty ........................................................................................... 10 4.5 Description of Test Setup ........................................................................................... 10 4.6 Measurement Results Explanation Example ............................................................... 13 5 TEST ITEMS ........................................................................................................................... 14 5.1 Antenna Requirements ............................................................................................... 14 5.2 Output Power and E.I.R.P .......................................................................................... 15 5.3 Occupied Bandwidth ................................................................................................... 17 5.4 Conducted Spurious Emission .................................................................................... 18 5.5 Band Edge (Authorized-band band-edge) ................................................................... 20 Report No.: Ti-EE26040519-601 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 50 Web: www.titcgroup.com Template No.: TRP-FCC&ISED RSS 247 (2022-01-12) Add: 601, Building 2, Intelligent Connected Vehicle Industrial Park, No.55, Xiangshan Road, Luotian Community, Yanluo Sub-district, Bao'an District, Shenzhen 5.6 Conducted Emission ................................................................................................... 22 5.7 Radiated Spurious Emission ....................................................................................... 23 5.8 Band Edge (Restricted-band band-edge) .................................................................... 28 5.9 Power Spectral density (PSD) .................................................................................... 29 ANNEX A TEST RESULT ........................................................................................................... 30 A.1 Output Power and E.I.R.P .......................................................................................... 30 A.2 Occupied Bandwidth ................................................................................................... 32 A.3 Conducted Spurious Emissions .................................................................................. 34 A.4 Band Edge (Authorized-band band-edge) ................................................................... 37 A.5 Conducted Emissions ................................................................................................. 38 A.6 Radiated Spurious Emi…

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