2AYWU-EM039Electronic Bluetooth earmuff

EM039 BT HEARING PROTECTION USER MANUAL EM039 Bluetooth Safety Earmuffs Key Features Product Overview Basic Operation Package Included Charging the Headset: Low Battery Warning: Charging cableLuxury bag Munual EM039 BT HEARING PROTECTION USER MANUAL US ·HI-FI AudioTuning for immersive vocals and clear sound. ·BT Wireless Technology for hands-free calling and wireless music streaming. ·Built-in Rechargeable Battery with included USB charging cable. ·96-Hour Long Battery Life powered by an industrial-grade battery,reducing weekly charges to just once. ·Detachable Design for easy use as a helmet headset. ·Breathable,High-Strength Headband and Soft,ComfortableEar Cushions for all-day wear To charge, use the included charging cable to connect the PROHEAR 039 headset to a USB power source (such as a car charger, power bank, or computer USB port). While charging, the LED indicator at the bottom will glow red. When charging is complete, the red light will turn off. When the battery level drops below 25%, the headset will provide a "Low Battery" voice prompt. Please charge the headset at this time. If not charged, the headset will automatically power off to protect the battery. Fitting the Headset: · Fully extend the headband and place the ear cups over your ears. · Adjust the headband by sliding it up or down. · Do: Ensure the ear cushions form a firm seal around the ears. · Don't: Let hair obstruct the ear cups or break the seal. · Don't: Allow the ear cups to sit crookedly or unevenly over the ears. Volume Knob Power/Control Button Charging Port LED Indicator Next Track Previous Track Bluetooth Operation 1. Power On/Off the Headset: (1) To power on, press and hold the "" for 2s. The headset will enter Bluetooth pairing mode, and the voice assistant will announce the status like "Power on, battery [level], Bluetooth mode" (2) To power off, press and hold the "" for 2s until you hear a beep, then hold for 1 more second to shut down. 2. Bluetooth Pairing: ·Turn on Bluetooth on your device. ·Select "EM039" to pair. ·Once connected, you will hear "Connected". ·The headset will automatically reconnect to the last paired device when powered on again. The voice assistant will announce: "Power on, battery [level], Bluetooth mode, connected". (Some devices may require manual reconnection.) Re-pair New Devices ·Triple-press the "" to disconnect the current device and enter the re-pairing mode. If the new device is not paired, triple-press the "" again to reconnect to the last connected device. 3. Listen to Music: Open the music app on your device. Single-press the power button to play/pause. Single-press the > button to skip to the next track. Single-press the < button to return to the previous track. 4. Take Calls: ·To answer or end a call → single-press . ·To reject an incoming call → Long-press or Double-press . ·During Bluetooth mode, incoming calls will pause music, and a ringtone will play in the headset (even if the phone is silent). ·During a call, if you want to switch the microphone mode, double-press the "" to switch "the Audio or Bluetooth microphone mode". ·During a call, if another call comes in: (1) Single press to answer, and the previous call will be placed on hold automatically. → Double-press "" to switch between calls. → Single-press to "" end the current call. (2) Press and hold for 2s "" to reject the new incoming call. 5. Adjust Volume: ·To increase or decrease volume, turn the gear knob. Quickstart Guide BLUETOOTH MODE Previous Track Single-Press Next Track Single-Press Power on headset Press and hold for 2s Bluetooth reconnection Triple-press End a Call Single-Press Pause/Play Single-Press Power off headset Press and hold for 3-4s Decline a Call Long-Press Switch the Microphone Mode Double-press Bluetooth disconnected Triple-press Answer a Call Single-Press Switch to Call on Hold Double-Press Volume Down Push Volume Knob Volume Up Push Volume Knob PROHEAR EM039 FCC Statement BT Note FCC:2AYWU-EM039 NOTE: 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 guarantee that interference will not occur in a particular installation. lf 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 Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two 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. Warranty PROHEAR provide 1-YEAR WARRANTY. And we take customer satisfaction as our top priority. If you have any questions, suggestions, concerns or issues, please feel free to contact us at: [email protected], our friendly customer service team will respond within 24 hrs. LIMITED WARRANTY KNOW MORE PROHEAR Scan code to PROHEARScan Code To Watch Video! https://bit.ly/3kA7rf5 PROHEAR, LLC warranties this product to the original purchaser to be freefrom defects in materials and workmanship, under normal use and co…

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Rev1/26/2023 HangzhouZHTechCo.,LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:12-9-2025 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCID:2AYWU-EM039 HangzhouZHTechCo.,LTD(“theapplicant”)certifiesthattheequipmentforwhichauthorizationis soughtisnot“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuantto section2.903oftheFCCrules. HangzhouZHTechCo.,LTD(“theapplicant”)certifiesthattheequipmentforwhichauthorizationis soughtdoesnotincludecybersecurityoranti-virussoftwareproducedorprovidedbyKasperskyLab,Inc. oranyofitssuccessorsandassignees,includingequipmentwithintegratedKasperskyLab,Inc.(oranyof itssuccessorsandassignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB 986446D01CoveredEquipmentGuidancesectionB(2a). Deviceisinherentlycompliantbasedonhardwarelimitationsorsoftwarecontrols. or ASoftwareBillofMaterials(SBOM)isprovidedtotheTCBforreview,and Theend-userorthirdpartiescannotinstalladditionalsoftwareonthisdevice. Sincerely, (signature) Name:HanwenXu Title:Manager Rev1/26/2023 HangzhouZHTechCo.,LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:12-9-2025 Ref:AttestationStatementsPart2.911(d)(5)(ii)Filing FCCID:2AYWU-EM039 HangzhouZHTechCo.,LTD(“theapplicant”)certifiesthat,asofthedateofthefilingoftheapplication, theapplicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiaries oraffiliates)asanentityproducing“covered”equipment. Sincerely, (signature) Name:HanwenXu Title:Manager

Hangzhou ZH Tech Co.,LTD Rev 1/26/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 12-9-2025 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID or Grantee Code:FCC ID: 2AYWU-EM039 Applicant FRN: 0030535207 Hangzhou ZH Tech Co.,LTD (“the applicant”) certifies that, as of the date of the filing of the application, REP America LLC is our designated U.S. agent for service of process for the above referenced FCC ID. Hangzhou ZH Tech Co.,LTD accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission- related proceeding involving the equipment. REP America LLC accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Name: REP America LLC S. Agent FRN: 0034192500 Address: 350 Terry St.200 Longmont, CO 80501 United States Contact Person: Mr Ben Xu Tel.: (719) 201-3314 Email: [email protected] Sincerely, Hanwen XuMr Ben Xu Hangzhou ZH Tech Co., Ltd.REP America LLC [Insert Applicant signature][U.S. Agent signature]

Regards, Hangzhou ZH Tech Co.,LTD Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: 12-9-2025 SUBJECT: FCC Application for FCC ID: 2AYWU-EM039 To Whom It May Concern: I, the undersigned, hereby states 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, and will apply the Supplier's Declaration of Conformity procedure to the class B computer peripheral portion of this composite device. I understand the following FCC requirements: 1. Devices subject to the SDoC procedure are required to be tested to show compliance with the FCC technical regulations by a recognized accredited testing laboratory. The testing laboratory must be accredited by a Commission approved accreditation body or designated under the terms of a government-to-government Mutual Recognition Agreement (MRA). A listing of those accredited testing laboratories that have been recognized by the Commission is published on the FCC Webpage: https://apps.fcc.gov/oetcf/eas/reports/TestFirmSearch.cfm (Select the "accredited" option to search for FCC recognized accredited test firms.) 2. Pt 2.1077 contains the list of information that must be included in the Supplier's Declaration of Conformity, which must be supplied with each product sold. The SDoC compliance info shall be included in the User’s Manual or as a separate sheet. The info must contain the name, address, and phone number of the responsible party, which must be located within the United States.According to 2.909(b), the responsible party is either the Manufacturer or if the product is imported the Importer. Sincerely, (signature) Name: Hanwen Xu Title: manager

HangzhouZHTechCo.,LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:12-9-2025 ConfidentialityRequestregardingapplicationforcertificationofFCCID:2AYWU-EM039 PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestconfidential treatmentofinformationaccompanyingthisapplicationasoutlinedbelow: ExhibitType BlockDiagram OperationalDescription Schematics Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedto thepublic.Thepublicdisclosureofthesematerialsmaybeharmfultotheapplicantandprovide unjustifiedbenefitstoitscompetitors. TheapplicantunderstandsthatpursuanttoSection0.457oftheRules,disclosureofthis applicationandallaccompanyingdocumentationwillnotbemadebeforethedateoftheGrantfor thisapplication. PursuanttoDA04-1705June15,2004oftheCommission’spublicnotice,wealsorequest temporaryconfidentialtreatmentofinformationaccompanyingthisapplicationasoutlinedbelow: ExhibitType Sincerely, (signature) Name:HanwenXu Title:Manager

HangzhouZHTechCo.,LTD FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Date:12-9-2025 SUBJECT:FCCApplicationforFCCID:2AYWU-EM039 ToWhomItMayConcern: We,theundersigned,herebyauthorizeColinHuangatShenzhenDACETestingTechnology Co.,Ltd.onourbehalf,toapplytotheFederalCommunicationsCommissiononourequipment. AnyandallactscarriedoutbyShenzhenDACETestingTechnologyCo.,Ltd.onourbehalf shallhavethesameeffectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct.We,theapplicant, arenotsubjecttoadenialoffederalbenefitspursuanttoSection5301oftheAnti-DrugActof 1988,21USC853a,andnopartytotheapplicationissubjecttoadenialoffederalbenefits pursuanttothatsection. Regards, Sincerely, (signature) Name:HanwenXu Title:Manager

FCCID:2AYWU-EM039 External

FCCID:2AYWU-EM039 FCCIDplace Model:EM039 FCCID:2AYWU-EM039 INPUT:DC5.0V

FCCID:2AYWU-EM039 Internal

Page1of1 RFExposureEvaluationReport 1RFEXPOSURE ProductName:ElectronicBluetoothearmuff ModelNo.:EM039 FCCID:2AYWU-EM039 2.RFExposureEvaluation FCCKDB447498D01GeneralRFExposureGuidancev06:MobileandPortableDevice,RF Exposure,EquipmentAuthorizationProcedures. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1093Radiofrequencyradiationexposureevaluation:portabledevices. 2.1LIMITS The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances ≤ 50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]*[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where  f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50 mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtest exclusion. 2.2EUTRFEXPOSUREEVALUATION Channel (MHz) Conducted Power(dBm) Tuneup Tolerance(dBm) Maximum tune-upPower Calculated value Limit (dBm)(mW) 3-DH5--24023.94 4.0±1 5.03.1620.9803.0 BLE--24021.98 2.0±1 3.01.9950.6183.0 Themax.Calculatedvalueis0.980<3.0,SothereisnorequireSARtest.

V1.0ReportNo.:DACE251118045RL001 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark,TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen,Guangdong,China Web:http://www.dace-lab.comTel:+86-755-23010613E-mail:[email protected] 1 of 97 RFTESTREPORT For HangzhouZHTechCo.,LTD ProductName:ElectronicBluetoothearmuff TestModel(s):EM039 ReportReferenceNo.:DACE251118045RL001 FCCID:2AYWU-EM039 Applicant’sName:HangzhouZHTechCo.,LTD Address:No.6,ShunleRoad,Jingshan,Yuhang,Hangzhou,China TestingLaboratory:ShenzhenDACETestingTechnologyCo.,Ltd. Address: 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark, TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen, Guangdong,China TestSpecificationStandard:47CFRPart15.247 DateofReceipt:November18,2025 DateofTest:November18,2025toDecember5,2025 DataofIssue:December5,2025 Result:Pass Note:Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofShenzhenDACE TestingTechnologyCo.,Ltd.ThisdocumentmaybealteredorrevisedbyShenzhenDACETestingTechnology Co.,Ltd.personnelonly,andshallbenotedintherevisionsectionofthedocument.Thetestresultsinthe reportonlyapplytothetestedsample V1.0ReportNo.:DACE251118045RL001 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark,TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen,Guangdong,China Web:http://www.dace-lab.comTel:+86-755-23010613E-mail:[email protected] 2 of 97 Applyforcompanyinformation Applicant’sName:HangzhouZHTechCo.,LTD Address:No.6,ShunleRoad,Jingshan,Yuhang,Hangzhou,China ProductName:ElectronicBluetoothearmuff TestModel(s):EM039 TestSpecificationStandard(s):47CFRPart15.247 NOTE1: Themanufacturershouldensurethatallproductsinseriesproductionareinconformitywiththeproductsampledetailedin thisreport.Iftheproductinthisreportisusedinanyconfigurationotherthanthatdetailedinthereport,themanufacturer mustensurethenewsystemcomplieswithallrelevantstandards. Compiledby:Supervisedby:Approvedby: LucyMo/TestEngineerStoneYin/ProjectEngineerTomChen/Manager December5,2025December5,2025December5,2025 V1.0ReportNo.:DACE251118045RL001 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark,TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen,Guangdong,China Web:http://www.dace-lab.comTel:+86-755-23010613E-mail:[email protected] 3 of 97 RevisionHistoryOfReport VersionDescriptionREPORTNo.IssueDate V1.0OriginalDACE251118045RL001December5,2025 V1.0ReportNo.:DACE251118045RL001 102,BuildingH1,&1/F.,BuildingH,HongfaScience&TechnologyPark,TangtouCommunity,ShiyanSubdistrict,Bao'anDistrict,Shenzhen,Guangdong,China Web:http://www.dace-lab.comTel:+86-755-23010613E-mail:[email protected] 4 of 97 CONTENTS 1TESTSUMMARY...................................................................................................................................................6 1.1TESTSTANDARDS........................................................................................................................................6 1.2SUMMARYOFTESTRESULT.........................................................................................................................6 2GENERALINFORMATION....................................................................................................................................7 2.1CLIENTINFORMATION..................................................................................................................................7 2.2DESCRIPTIONOFDEVICE(EUT)..................................................................................................................7 2.3DESCRIPTIONOFTESTMODES....................................................................................................................8 2.4DESCRIPTIONOFSUPPORTUNITS................................................................................................................9 2.5EQUIPMENTSUSEDDURINGTHETEST........................................................................................................9 2.6STATEMENTOFTHEMEASUREMENTUNCERTAINTY....................................................................................10 2.7IDENTIFICATIONOFTESTINGLABORATORY.................................................................................................11 2.8ANNOUNCEMENT........................................................................................................................................11 3EVALUATIONRESULTS(EVALUATION)...........................................................................................................12 3.1ANTENNAREQUIREMENT............................................................................................................................12 3.1.1Conclusion:.................................................................................................................................12 4RADIOSPECTRUMMATTERTESTRESULTS(RF).........................................................................................13 4.1CONDUCTEDEMISSIONATACPOWERLINE................................................................................................13 4.1.1E.U.T.Operation:........................................................................................................................13 4.1.2TestSetupDiagram:...................................................................................................................13 4.1.3TestData:...................................................................................................................................14 4.220DBBANDWIDTH.....................................................................................................................................16 4.2.1E.U.T.Operation:........................................................................................................................16 4.2.2TestSetupDiagram:...................................................................................................................16 4.2.3TestData:.…

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Product specification Quick Reference Date Antenna module on the system board Frequenc Range 2400 ~ 2500MHz Ant. Port Input Pwr. (dBm) 0 (Typ. BT class 2 output power) Tot. Rad. Pwr. (dBm) -1.2 (Input pwr – loss pwr) Peak EIRP(dBm) 1.2 Directivity (dBi) 1 (all direction antenna) Efficiency (dB) 60.2 % Gain (dBi) 1.2 (Avg Gain XY-plane) Maximum Power (dBm) 1.7 (XY-plane) Minimum Power (dBm) -4(XY-plane) Avg. Power (dBm) -0.5(XY-plane) Input Impendence(ohm) 50 Polarization Type Vertical & Horizontal V . S .W. R< 1.4 Antenna Layout & module on the system boa All thetechnical data and information contained herein are subject to change without prior notice rd Antenna Gain Gain Table Unit in dBi @2.44GHz XY-plane XZ-plane YZ-plane Efficiency Peak Avg. Peak Avg. Peak Avg. Module Board 1.2 -0.5 1.9 -3.6 1.1 -3.0 6 0.2 % 1.2 1.9 ( Manufacturer Hangzhou ZH Tech Co.,LTD Retum Loss The Environment of Antenna Radiation Pattem 3D radiation pattern diagram XY-plane XZ-plane YZ-plane

FCCID:2AYWU-EM039 Testsetup ConductedEmissionatACpowerline Bandedgeemissions(Radiated) Emissionsinfrequencybands(above1GHz) Emissionsinfrequencybands(below1GHz)