2ADZC-M28R2Wireless Microphone

[ShenzhenHollylandTechnologyCo.,Ltd] Rev1/26/2023 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:17-Jun-26 Ref:AttestationStatementsPart2.911(d)(7)Filing FCCID:2ADZC-M28R2 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)

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-M28R2 Ifyouhaveanyquestions,pleasefeelfreetocontactme ContactPerson:VincentMa PositionintheCompany:SalesDirector DateofSignature:2026/6/17 ___________________________ Signatory (signatureoftheapplicant)

Date:17June2026 ShenzhenHollylandTechnologyCo.,Ltd To:FederalCommunicationsCommission, Authorization&EvaluationDivision, 7435OaklandMillsRoad, Columbia,MD21046 ToWhomItMayConcern: TheShenzhenHollylandTechnologyCo.,Ltdtheundersigned,herebyauthorizesMr.Wu XuewenfromShenzhenBALUNTechnologyCo.,Ltd.,toactonthebehalfoftheShenzhen HollylandTechnologyCo.,LtdsolelyinmattersrelatingtotheapplicationforanFCCequipment authorizationforFCCID:2ADZC-M28R2includingthesigningofdocumentsinconnectionwith 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-M28R2 FCCCertificationConfidentialityRequest Gentlemen: Thisletteristocomplywith47CFR0.457and0.459pertainingtoconfidentiality material.ShenzhenHollylandTechnologyCo.,Ltdrequeststhatthefollowing documentsregardingthissubmissionforFCCID:2ADZC-M28R2bekept 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

V1.0 RX LIGHTING(透明贴纸)-丝印认证 1 2 3 4 5 6 A B C D 1 2 3 4 5 6 A B C D 注：仅红色区域为丝印信息 投影法 第三角投影法 深圳市昊一源科技有限公司 比例 1:1 材料 项目名称 A6118 设计 张哲 20260305 20260305 20260305 版本 零件名称 审核 姚立清 图幅 公制 图纸编号 批准 第 1 张 共 1 张 零件编号 标记 变更内容 版本 变更者 日期 V0.9 张哲 20260417初版发行 简业成 / / 技术要求：丝印 内容： 22.0MM 0.78MM 0.755MM ±2° ±1° ±0.5° ±0.5 ±0.2 ±0.15 ±0.3 ±0.15 ±0.1 ±0.1 ±0.05 角度θ L≥30 6<L≤30 0<L≤6 c(粗糙级) m(中等级) f(精密级) 尺寸分段 未标注尺寸公差表 ±0.2 HY-PRT_PG_04_235 MODEL：M28R2 CAN ICES-003(B)/NMB-003(B) IC: 29803-M28R2 S/N:XXXXXXXXXXX FCC ID: 2ADZC-M28R2 MADE IN CHINA 217-263218 MODEL：M28R2 CAN ICES-003(B)/NMB-003(B) IC: 29803-M28R2 S/N:XXXXXXXXXXX FCC ID: 2ADZC-M28R2 MADE IN CHINA 217-263218

Report No.: Ti-EE26040529-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 1 / 33 Web: www.titcgroup.com Template No.: TRP-FCC DASY-Body-2 (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: M28R2 Brand Name: FCC ID: 2ADZC-M28R2 Test Standard: FCC 47 CFR Part 2.1093 (refer to section 3.1) Maximum SAR: Body 2.4GHz(1 g@0mm): 0.91 W/kg Sample Arrival Date: May 08, 2026 Test Date: May 28, 2026 Date of Issue: Jun. 10, 2026 ISSUED BY: Shenzhen BALUN Technology Co., Ltd. Tested by: Liu Haibo Checked by: Xu Rui Approved by: Liao Jianming (Technical Director) _______________ _______________ _______________ Report No.: Ti-EE26040529-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 2 / 33 Web: www.titcgroup.com Template No.: TRP-FCC DASY-Body-2 (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. 10, 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 USB DONGLE TRANSMITTERS Position Conditions ................................................ 21 Report No.: Ti-EE26040529-701 Tel: +86-755-66850100 E-mail: [email protected] Page No. 3 / 33 Web: www.titcgroup.com Template No.: TRP-FCC DASY-Body-2 (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-EE26040529-AC 1 / 32 CALIBRATION REPORT F.1 E-Field Probe (EX3DV4 - SN:7664) Report No.: Ti-EE26040529-AC 2 / 32 Report No.: Ti-EE26040529-AC 3 / 32 Report No.: Ti-EE26040529-AC 4 / 32 Report No.: Ti-EE26040529-AC 5 / 32 Report No.: Ti-EE26040529-AC 6 / 32 Report No.: Ti-EE26040529-AC 7 / 32 Report No.: Ti-EE26040529-AC 8 / 32 Report No.: Ti-EE26040529-AC 9 / 32 Report No.: Ti-EE26040529-AC 10 / 32 Report No.: Ti-EE26040529-AC 11 / 32 Report No.: Ti-EE26040529-AC 12 / 32 Report No.: Ti-EE26040529-AC 13 / 32 Report No.: Ti-EE26040529-AC 14 / 32 Report No.: Ti-EE26040529-AC 15 / 32 Report No.: Ti-EE26040529-AC 16 / 32 Report No.: Ti-EE26040529-AC 17 / 32 Report No.: Ti-EE26040529-AC 18 / 32 Report No.: Ti-EE26040529-AC 19 / 32 Report No.: Ti-EE26040529-AC 20 / 32 Report No.: Ti-EE26040529-AC 21 / 32 Report No.: Ti-EE26040529-AC 22 / 32 Report No.: Ti-EE26040529-AC 23 / 32 F.2 Data Acquisition Electronics (DAE4 - SN:1711) Report No.: Ti-EE26040529-AC 24 / 32 Report No.: Ti-EE26040529-AC 25 / 32 Report No.: Ti-EE26040529-AC 26 / 32 F.3 2450 MHz Dipole Report No.: Ti-EE26040529-AC 27 / 32 Report No.: Ti-EE26040529-AC 28 / 32 Report No.: Ti-EE26040529-AC 29 / 32 Report No.: Ti-EE26040529-AC 30 / 32 Report No.: Ti-EE26040529-AC 31 / 32 Report No.: Ti-EE26040529-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--

Ti-EE26040529-AP 8 CONDUCTED RF OUPUT POWER 8.1 2.4GHZ ISM Band Output Power 2 Ti-EE26040529-AP 8.12.4G ISM Band Output Power Test ModeModulation Channel number Fre. (MHz) output power(dBm) tune up power(dBm) SAR Test 2.4G ISM Band2M Low240212.43 13.00 Yes Mid244012.25 13.00 Yes High248012.18 13.00 Yes 2

Ti-EE26040529-ASC 1/1 SystemCheck:Head2450MHz ExposureConditions Phantom Section,TSL Position, Test Distance [mm] BandGroup, UID Frequency [MHz], Channel Number Conversion Factor TSL Conductivity [S/m] TSL Permittivity Ambient Temperature [°C] Liquid Temperature [°C] Flat, HSL Validation band CW, 0-- 2450.0, 2450 7.801.7739.422.321.5 HardwareSetup PhantomTSL,MeasuredDateProbe,CalibrationDateDAE,CalibrationDate Twin-SAMV8.0(30degprobetilt)- 2090 HBBL-600-100002026-05-28EX3DV4-SN7664,2025-06-30DAE4Sn1711,2025-11-11 ScanSetup AreaScanZoomScan GridExtents[mm]80.0x80.030.0x30.0x30.0 GridSteps[mm]10.0x10.05.0x5.0x1.5 SensorSurface[mm]3.01.4 GradedGridYesYes GradingRatio1.51.5 MAIAN/AN/A SurfaceDetectionVMS+6pVMS+6p ScanMethodMeasuredMeasured MeasurementResults AreaScanZoomScan Date2026-05-282026-05-28 psSAR1g[W/kg]5.225.19 psSAR10g[W/kg]2.352.41 PowerDrift[dB]0.020.05 PowerScalingDisabledDisabled ScalingFactor[dB] TSLCorrectionNocorrectionNocorrection M2/M1[%]81.4 Dist3dBPeak[mm]9.6

Ti-EE26040529-ATD 1 Meas.1 Body Plane with Back Side 0mm on Low Channel in 2.4G ISM Band mode with Antenna 1 Exposure Conditions Phantom Section, TSL Position, Test Distance [mm] Band Group, UID Frequency [MHz], Channel Number Conversion Factor TSL Conductivity [S/m] TSL Permittivity Ambient Temperature [°C] Liquid Temperature [°C] Flat, HSL BACK, 0.00 CD2450 CW, 0-- 2402.0, 0 7.80 1.75 40.4 22.3 21.5 Hardware Setup Phantom TSL, Measured Date Probe, Calibration Date DAE, Calibration Date Twin-SAM V8.0 (30deg probe tilt) - 2090 HBBL-600-10000 2026-05-28 EX3DV4 - SN7664, 2025-06-30 DAE4 Sn1711, 2025-11-11 Scan Setup Area Scan Zoom Scan Grid Extents [mm] 72.0 x 96.0 30.0 x 30.0 x 30.0 Grid Steps [mm] 12.0 x 12.0 5.0 x 5.0 x 5.0 Sensor Surface [mm] 3.0 1.4 Graded Grid Yes Yes Grading Ratio 1.5 1.5 MAIA N/A N/A Surface Detection VMS + 6p VMS + 6p Scan Method Measured Measured Measurement Results Area Scan Zoom Scan Date 2026-05-28 2026-05-28 psSAR1g [W/kg] 0.658 0.682 psSAR10g [W/kg] 0.288 0.284 Power Drift [dB] 0.01 -0.06 Power Scaling Disabled Disabled Scaling Factor [dB] TSL Correction No correction No correction M2/M1 [%] 49.6 Dist 3dB Peak [mm] 7.0

AntennaSampleDatasheet entryname：A6118-RX 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) 2400-0.7733.5 2410-0.6834.88 2420-0.3737.08 24300.0237.75 24400.4239.38 24500.3542.05 24600.2941.54 24700.2842.71 24800.3543.28 2.3：PassivepatternofBTantenna 5 3 ： Structuraldrawing-right 6 4:Antennadiagram

Report No.: Ti-EE26040529-601 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: M28R2 Brand Name: FCC ID: 2ADZC-M28R2 ISED Number: 29803-M28R2 Test Standard: 47 CFR Part 15 Subpart C RSS-Gen Issue 5 RSS-247 Issue 4 (refer to section 3.1) Sample Arrival Date: May 07, 2026 Test Date: May 12, 2026 - May 18, 2026 Date of Issue: Jun. 10, 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-EE26040529-601 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. 10, 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-EE26040529-601 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 Emiss…

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