2AI6I-TW991ULTRAAdaptive Hybrid Noise Cancelling TWS Earbuds

TCB CALL página 1 File FCC ID: 2AI6I-TW991ULTRA Please upload an exhibit that explains how does the TCB verify the new agent information: 1- Is the address of the agent a valid physical US mailing address (not a US post office box, not a virtual mailbox, not P.O. Boxes, not a vacant lot, not a public building, etc.) ○We have checked if the address exists in a real and potential building (Google maps) + official US register, after this verification and the evidence below we can guarantee the following: not a US post office box not a virtual mailbox not P.O. Boxes not a vacant lot not a public building(note) ►We checked the FCC FRN Search based on the information provided by the grantee. Google: TCB CALL página 2 EIN Statement TCB CALL página 3 ►CONCLUSION by TCB: The ASOP defined and provided by grantee is VALID and confirmed. Therefore the exhibit "C5266091_X23_Ed1_US_Agent_Letter" included in the file is ok. 2- Is the agent physically located at that valid US address such that the agent can be legally served at that address? Yes , check above 3- Has the listed agent clearly agreed in writing to serve as the agent for the grantee at that address? Yes, it is included in the exhibit "C5266091_X23_Ed1_US_Agent_Letter"

Guangzhou Havit Technology Co.,LTD version02 5/28/2026 Dear Sirs: We hereby declare that because the earphone size is too small, the FCC ID number is printed on the User Manual and product packaging, hereby declare. FCC ID: 2AI6I-TW991ULTRA Sincerely, Signature: Name: Yang Wei Title: Manager Company: Guangzhou Havit Technology Co.,LTD

1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: Picus Advisors US LLC FRN: 0034336891 Contact Name: lvan Wang Address: 5855 SOVEREIGN DRSTE B-1, HOUSTON, TX 77036, USA Telephone No: (713) 391-4488 Email: [email protected] Applicant: Company name: Guangzhou Havit Technology Co.,LTD FRN: 0025744657 Product Description: Adaptive Hybrid Noise Cancelling TWS Earbuds Grantee code: 2AI6I FCC ID: 2AI6I-TW991ULTRA Contact Name: Yang Wei Address: ROOM 1307, 13F, PHASE 2 B, C BUILDING OF POLY WORLD TRADE CENTER, NO.1000, XINGANG EAST ROAD, HAIZHU GUANGDONG China Telephone No: +86-20-66820279 Email: [email protected] [Guangzhou Havit Technology Co.,LTD] certifies that, as of the date of this filing of the application with the TCB, [Picus Advisors US LLC] is our designated US agent for service of process for the above referenced FCC ID. [Guangzhou Havit Technology 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 equipment. [Picus Advisors US LLC] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 05.19.2026 Applicant’s Name: Yang Wei US Agent’s Name: lvan Wang Title: Manager Title: CEO Signature Signature

Attestation Statement. Old Code: C5266091 24 New Code: 00015544 Ed.3 Change reason: FRN is added to the Applicant information section. 1/1 TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: Guangzhou Havit Technology Co.,LTD Grantee code: 2AI6I FCC ID: 2AI6I-TW991ULTRA FRN: 0025744657 Contact Name: Yang Wei Address: ROOM 1307, 13F, PHASE 2 B, C BUILDING OF POLY WORLD TRADE CENTER, NO.1000, XINGANG EAST ROAD, HAIZHU GUANGDONG China Telephone No: +86-20-66820279 Fax No: +86-20-66856369 Email: [email protected] i. [Guangzhou Havit Technology Co.,LTD] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. The applicant must sign this certification. ii. [Guangzhou Havit Technology Co.,LTD] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. Guangzhou Havit Technology Co.,LTD certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Date: 05.19.2026 Applicant’s Name: Yang Wei Title: Manager Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

Guangzhou Havit Technology Co.,LTD Code 00018768 Ed. 2 Item 1. The device is able to install software/program installation? ☐Yes, go to Item 2. ☒No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky cybersecurity or anti-virus software. Item 2. Technical Requirements for Kaspersky Cybersecurity Software: # General Requirements (For all Devices) Yes / No or N/A Comments 1 Internet connection for activation and updates (For all Operating Systems) N/A Device Adaptive Hybrid Noise Cancelling TWS Earbuds Company name Guangzhou Havit Technology Co.,LTD Grantee code 2AI6I FCC ID 2AI6I-TW991ULTRA FRN 0025744657 Contact name Yang Wei Address ROOM 1307, 13F, PHASE 2 B, C BUILDING OF POLY WORLD TRADE CENTER, NO.1000, XINGANG EAST ROAD, HAIZHU GUANGDONG China Telephone number +86-20-66820279 [email protected] Chipset/module information JL7096D Operating System (if applicable) N/A Storage Capacity (hard drive or other permanent memory storage, if applicable) N/A 2 # General Requirements (For Windows Devices) Yes / No or N/A Comments 1 Storage: 1500 MB free space on the hard drive N/A 2 Operating System: Microsoft Windows 8, 8.1, 10 & 11 Home / Pro / Enterprise Microsoft Windows 7 Starter / Home Basic & Premium / Professional / Ultimate SP1 or higher N/A 3 Processor: 1 GHz or higher (x86 or x64) N/A 4 Memory (RAM)1 GB (32-bit) or 2 GB (64-bit) N/A 5 Screen Resolution: Minimum resolution of 1024 x 768 N/A # General Requirements (For macOS devices) Yes / No or N/A Comments 1 Operating System macOS® 13 – 14 N/A 2 Memory (RAM)4 GB N/A 3 Storage: 3455 MB free space on the hard drive N/A # General Requirements (For Android Devices) Yes / No or N/A Comments 1 Storage: 150 MB free space N/A 2 Operating System: Android™ 10 – 14 N/A 3 Screen Resolution: Minimum resolution of 320 x 480 N/A # General Requirements (for iOS devices) Yes / No or N/A Comments 1 Storage: 150 MB free space N/A 2 Operating System: iOS® 17 N/A 3 # General Requirements (For Linux system) Yes / No or N/A Comments 1 Hard drive: 1 GB of free space N/A 2 CPU: Intel Pentium 1 GHz or higher N/A 3 RAM: 1 GB N/A 4 Minimum software requirements: AlmaLinux OS 8 or later; AlterOS 7.5 or later; Astra Linux Common Edition 2.12 or later; CentOS 6.7 or later; Debian GNU/Linux 10.0 or later; EulerOS 2.0 or later; Oracle Linux 7.3 or later ; Red Hat Enterprise Linux 6.7 or later ; Rocky Linux 8.5 or later ; SUSE Linux Enterprise Server 12.5 or later; Ubuntu 12.04 or later ; Uncom OS Home / Business / Education / Enterprise 2.2 or later; ALT Linux Workstaton / Workstation K / Server / Education 8 or later; ROSA Linux Workstation / Server 12 or later ; RED OS 7.3 and later ; N/A After reviewed the technical requirements, is the device capable of supporting the installation of Kaspersky software? ☐ Yes, go to Item 3. ☒ No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky software 4 Item 3. Connectivity Capabilities: # Physical Interface Purpose Justification 1 1 # Wireless Interface Purpose Justification 1 1 After the review of this items, the device: ☒ Cannot support installation of any cybersecurity or anti-virus software on the covered list. ☐ Potentially can operate with any cybersecurity or anti-virus software on the covered list – additional third- party proof is provided to demonstrate compliance with requirements as of 2.911(d)5(i),(ii) – “Proof of Compliance with Covered List Software Requirements” of this document applies Signature: Name: Yang Wei Date: 5/19/2026 1 The justification field is used to justify why the software cannot be received through that interface. Check the annex for more indications.

Guangzhou Havit Technology Co.,LTD Product Similarity Declaration Product name: Adaptive Hybrid Noise Cancelling TWS Earbuds Model name: TW991 ULTRA, SPACE T3 FCC ID: 2AI6I-TW991ULTRA We (Guangzhou Havit Technology Co.,LTD) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), the only difference is the model name. Signature: Name: Yang Wei Title: Manager Date: 5/19/2026

C5266091_X10_Ed.2 1/1 Guangzhou Havit Technology Co.,LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 5/19/2026 Subject: Request for Confidentiality FCC ID: 2AI6I-TW991ULTRA To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☐ Internal Photos ☐ NOTE 1 ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ______ days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name: Yang Wei Title: Manager

C5266091_X8_Ed.1 1/1 Letter of Authorization Company: Guangzhou Havit Technology Co.,LTD Address: ROOM 1307, 13F, PHASE 2 B, C BUILDING OF POLY WORLD TRADE CENTER, NO.1000, XINGANG EAST ROAD, HAIZHU GUANGDONG China Product Name: Adaptive Hybrid Noise Cancelling TWS Earbuds Model Number: TW991 ULTRA, SPACE T3 FCC Identifier: 2AI6I-TW991ULTRA We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Yang Wei Date: 5/19/2026 Title: Manager Signature of applicant:

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Page1of4ReportNo.:MTi260420026-0108 Address:101,No.7,Zone2,XinxingIndustrialPark,FuhaiAvenue,XinheCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,Guangdong,China. Tel:0755-88850135-1439Mobile:131-4343-1439(Wechatsamenumber)Web:http://www.mtitest.cnE-mail:[email protected] PhotographsoftheEUT(InternalPhotos) Model:TW991ULTRA Page2of4ReportNo.:MTi260420026-0108 Address:101,No.7,Zone2,XinxingIndustrialPark,FuhaiAvenue,XinheCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,Guangdong,China. Tel:0755-88850135-1439Mobile:131-4343-1439(Wechatsamenumber)Web:http://www.mtitest.cnE-mail:[email protected] ANT Page3of4ReportNo.:MTi260420026-0108 Address:101,No.7,Zone2,XinxingIndustrialPark,FuhaiAvenue,XinheCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,Guangdong,China. Tel:0755-88850135-1439Mobile:131-4343-1439(Wechatsamenumber)Web:http://www.mtitest.cnE-mail:[email protected] Page4of4ReportNo.:MTi260420026-0108 Address:101,No.7,Zone2,XinxingIndustrialPark,FuhaiAvenue,XinheCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,Guangdong,China. Tel:0755-88850135-1439Mobile:131-4343-1439(Wechatsamenumber)Web:http://www.mtitest.cnE-mail:[email protected]

Tel:0755-88850135-1439 Mobile:131-4343-1439（Wechatsamenumber） Web:http://www.mtitest.cnE-mail:[email protected] Address:101,No.7,Zone2,XinxingIndustrialPark,FuhaiAvenue,XinheCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,Guangdong,China Q/MTI-QP-12-FE012 Ver./Rev.：A1 Page 1 of 6 RFEXPOSURE TestReport ReportNo.:MTi260420026-0108E2 DateofIssue:2026-04-30 Applicant:GuangzhouHavitTechnologyCo.,Ltd. Product:AdaptiveHybridNoiseCancellingTWSEarbuds Model(s):TW991ULTRA,SPACET3 FCCID:2AI6I-TW991ULTRA ShenzhenMicrotestCo.,Ltd. TESTREPORT ReportNo.:MTi260420026-0108E2 Tel:0755-88850135-1439 Mobile:131-4343-1439（Wechatsamenumber） Web:http://www.mtitest.cnE-mail:[email protected] Address:101,No.7,Zone2,XinxingIndustrialPark,FuhaiAvenue,XinheCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,Guangdong,China Q/MTI-QP-12-FE012 Ver./Rev.：A1 Page2of6 Tableofcontents 1StandaloneSARtestexclusionconsiderations.................................................................4 2SARTestExclucsionThresholds.........................................................................................5 TESTREPORT ReportNo.:MTi260420026-0108E2 Tel:0755-88850135-1439 Mobile:131-4343-1439（Wechatsamenumber） Web:http://www.mtitest.cnE-mail:[email protected] Address:101,No.7,Zone2,XinxingIndustrialPark,FuhaiAvenue,XinheCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,Guangdong,China Q/MTI-QP-12-FE012 Ver./Rev.：A1 Page3of6 TestResultCertification ApplicantGuangzhouHavitTechnologyCo.,Ltd. ApplicantAddress ROOM1307,13F,PHASE2B,CBUILDINGOFPOLYWORLDTRADE CENTER,NO.1000,XINGANGEASTROAD,HAIZHUGUANGDONGChina ManufacturerGuangzhouHavitTechnologyCo.,Ltd. Manufacturer Address ROOM1307,13F,PHASE2B,CBUILDINGOFPOLYWORLDTRADE CENTER,NO.1000,XINGANGEASTROAD,HAIZHUGUANGDONGChina Productdescription ProductnameAdaptiveHybridNoiseCancellingTWSEarbuds TrademarkHAVIT ModelnameTW991ULTRA SeriesModel(s) SPACET3 Standards47CFRPart2.1093* TestmethodKDB447498D01v06* TestingInformation Dateoftest2026-04-23to2026-04-27 TestResultPass Preparedby:MaleahDeng Reviewedby:DavidLee Approvedby:LewisLian TESTREPORT ReportNo.:MTi260420026-0108E2 Tel:0755-88850135-1439 Mobile:131-4343-1439（Wechatsamenumber） Web:http://www.mtitest.cnE-mail:[email protected] Address:101,No.7,Zone2,XinxingIndustrialPark,FuhaiAvenue,XinheCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,Guangdong,China Q/MTI-QP-12-FE012 Ver./Rev.：A1 Page4of6 1StandaloneSARtestexclusionconsiderations UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone1-g headorbodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions,by measurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARTest ExclusionThresholdcondition(s),listedbelow,is(are)satisfied. Thesetestexclusionconditionsarebasedonsource-basedtime-averagedmaximum conductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-uptolerance, andtheminimumtestseparationdistancerequiredfortheexposureconditions. Theminimumtestseparationdistancedefinedin4.1f)isdeterminedbythesmallestdistance fromtheantennaandradiatingstructuresoroutersurfaceofthedevice,accordingtothehost formfactor,exposureconditionsandplatformrequirements,toanypartofthebodyorextremity ofauserorbystander. ToqualifyforSARtestexclusion,thetestseparationdistancesappliedmustbefullyexplained andjustified,typicallyintheSARmeasurementorSARanalysisreport,bytheoperating configurationsandexposureconditionsofthetransmitterandapplicablehostplatform requirements,accordingtotherequiredpublishedRFexposureKDBprocedures. WhennootherRFexposuretestingorreportingarerequired,astatementofjustificationand compliancemustbeincludedintheequipmentapproval,inlieuoftheSARreport,toqualifyfor SARtestexclusion. Whenrequired,thedevicespecificconditionsdescribedintheotherpublishedRFexposure KDBproceduresmustbesatisfiedbeforeapplyingtheseSARtestexclusionprovisions. a)For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz  PoweranddistanceareroundedtothenearestmWandmmbeforecalculation  Theresultisroundedtoonedecimalplaceforcomparison Thevalues3.0and7.5arereferredtoasnumericthresholdsinstepb)below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm, andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto4.1f)isappliedtodetermine SARtestexclusion. b)For100MHzto6GHzandtestseparationdistances>50mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing(alsoillustratedinAppendixB): 1){[Powerallowedatnumericthresholdfor50mminstepa)]+[(testseparation distance–50mm)·(f(MHz)/150)]}mW,for100MHzto1500MHz 2){[Powerallowedatnumericthresholdfor50mminstepa)]+[(testseparation distance–50mm)·10]}mW,for>1500MHzand≤6GHz c)Forfrequenciesbelow100MHz,thefollowingmaybeconsideredforSARtestexclusion (alsoillustratedinAppendixC): 1)Fortestseparationdistances>50mmand<200mm,thepowerthresholdatthe correspondingtestseparationdistanceat100MHzinstepb)ismultipliedby[1+ TESTREPORT ReportNo.:MTi260420026-0108E2 Tel:0755-88850135-1439 Mobile:131-4343-1439（Wechatsamenumber） Web:http://www.mtitest.cnE-mail:[email protected] Address:101,No.7,Zone2,XinxingIndustrialPark,FuhaiAvenue,XinheCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,Guangdong,China Q/MTI-QP-12-FE012 Ver./Rev.：A1 Page5of6 log(100/f(MHz))] 2)Fortestseparationdistances≤50mm,thepowerthresholddeterminedbythe equationinc)1)for50mmand100MHzismultipliedby½ 3)SARmeasurementproceduresarenotestablishedbelow100MHz. WhenSARtestexclusioncannotbeapplied,aKDBinquiryisrequiredtodetermineSAR evaluationrequirementsforanySARtestresultsbelow100MHztobeacceptable. 2SARTestExclucsionThresholds Weuse5mmasseparationdistancetocalculated. BluetoothDSS: Transmit Frequency (GHz) Mode Measured Power (dBm) Tune-up power (dBm) Maxtune-upResult 1gSAR test exclusion thre…

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Tel:0755-88850135-1439 Mobile:131-4343-1439（Wechatsamenumber） Web:http://www.mtitest.cnE-mail:[email protected] Address:101,No.7,Zone2,XinxingIndustrialPark,FuhaiAvenue,XinheCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,Guangdong,China Q/MTI-QP-12-FE038 Ver./Rev.：A1 Page 1 of 76 TestReport ReportNo.:MTi260420026-0108E1 Dateofissue:2026-04-30 Applicant:GuangzhouHavitTechnologyCo.,Ltd. Product:AdaptiveHybridNoiseCancellingTWSEarbuds Model(s):TW991ULTRA,SPACET3 FCCID:2AI6I-TW991ULTRA ShenzhenMicrotestCo.,Ltd. TESTREPORT ReportNo.:MTi260420026-0108E1 Tel:0755-88850135-1439Mobile:131-4343-1439(Wechatsamenumber)Web:http://www.mtitest.cnE-mail:[email protected] Address:101,No.7,Zone2,XinxingIndustrialPark,FuhaiAvenue,XinheCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,Guangdong,China Q/MTI-QP-12-FE038 Ver./Rev.：A1 Page 2 of 76 Tableofcontents 1GeneralDescription.......................................................................................................................4 1.1DescriptionoftheEUT.........................................................................................................4 1.2Descriptionoftestmodes.....................................................................................................4 1.3EnvironmentalConditions.....................................................................................................6 1.4Descriptionofsupportunits..................................................................................................6 1.5Measurementuncertainty.....................................................................................................6 2SummaryofTestResult................................................................................................................7 3TestFacilitiesandaccreditations................................................................................................8 3.1Testlaboratory......................................................................................................................8 4Listoftestequipment....................................................................................................................9 5EvaluationResults(Evaluation).................................................................................................11 5.1Antennarequirement..........................................................................................................11 6RadioSpectrumMatterTestResults(RF)................................................................................12 6.120dBBandwidth..................................................................................................................12 6.2MaximumConductedOutputPower..................................................................................14 6.3ChannelSeparation............................................................................................................15 6.4NumberofHoppingFrequencies.......................................................................................17 6.5DwellTime..........................................................................................................................18 6.6RFconductedspuriousemissionsandbandedgemeasurement....................................20 6.7Bandedgeemissions(Radiated).......................................................................................21 6.8Radiatedemissions(below1GHz).....................................................................................26 6.9Radiatedemissions(above1GHz)....................................................................................32 Photographsofthetestsetup...........................................................................................................39 PhotographsoftheEUT.....................................................................................................................40 AppendixA:20dBEmissionBandwidth..........................................................................................42 AppendixB:Maximumconductedoutputpower...........................................................................46 AppendixC:Carrierfrequencyseparation......................................................................................50 AppendixD:Timeofoccupancy.......................................................................................................52 AppendixE:Numberofhoppingchannels.....................................................................................58 AppendixF:Bandedgemeasurements...........................................................................................60 AppendixG:ConductedSpuriousEmission..................................................................................64 TESTREPORT ReportNo.:MTi260420026-0108E1 Tel:0755-88850135-1439Mobile:131-4343-1439(Wechatsamenumber)Web:http://www.mtitest.cnE-mail:[email protected] Address:101,No.7,Zone2,XinxingIndustrialPark,FuhaiAvenue,XinheCommunity,FuhaiStreet,Bao’anDistrict,Shenzhen,Guangdong,China Q/MTI-QP-12-FE038 Ver./Rev.：A1 Page 3 of 76 TestResultCertification ApplicantGuangzhouHavitTechnologyCo.,Ltd. ApplicantAddress ROOM1307,13F,PHASE2B,CBUILDINGOFPOLYWORLDTRADE CENTER,NO.1000,XINGANGEASTROAD,HAIZHUGUANGDONGChina ManufacturerGuangzhouHavitTechnologyCo.,Ltd. Manufacturer Address ROOM1307,13F,PHASE2B,CBUILDINGOFPOLYWORLDTRADE CENTER,NO.1000,XINGANGEASTROAD,HAIZHUGUANGDONGChina Productdescription ProductnameAdaptiveHybridNoiseCancellingTWSEarbuds TrademarkHAVIT ModelnameTW991ULTRA SeriesModel(s) SPACET3 Standards47CFRPart15.247 TestMethod KDB558074D0115.247MeasGuidancev05r02* ANSIC63.10-2020+Cor.1-2023 TestingInformation Dateoftest2026-04-23to2026-04-28 TestresultPass Preparedby:MaleahDeng Reviewedby:DavidLee Approvedby:LewisLian TESTREPORT ReportNo.:MTi260420026-0108E1 Tel:0755-88850135-1439Mobile:131-4343-1439(Wechatsamenumber)Web:http://www.mtitest.cnE-mail:[email protected] Address:101,No.7,Zone2,XinxingIndustrialPark,FuhaiAvenue,XinheCommunity,Fuha…

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Customer Projec t Antenna Revisio 991pro n A0 Prepared by 18814303605 Checked by Date : 2026.02.03 Antenna Test Report Sequence Number Test Item equipment S parameter VSWR Agilent 5071C & Agilent 5071B OTA TestTRP&TIS Agilent8960 & CMW500 STIMO Gain & Efficiency Gain & Efficiency SATIMO Agilent 5071C 2.TestSystem Purpose This report is to measure the performance of antenna for LR119A The antenna operating frequency at 2400MHz0-2500MHz 。 All test data are showed as below. Content 1.Product Overview & Dimension 2.Test system 3.Test Result 3.1 S11 Parameter 3.2 Gain & Efficiency 3.3 2D Pattern 4. OTA 4.1Test Result 4.2 2D Pattern 匹配图 L R Frequency (MHz) 2400245024802500 VSWR 1.811.111.401.84 3.1Test Result 1 .S11 Parameter-VSWR L Frequency (MHz) 2400245024802500 Log Mag -10.75-25.57-15.54-10.53 3.1Test Result 2. S11 Parameter-Log Mag L Frequency (MHz) 2400245024802500 Smi th(Ω ) 88.5054.7238.8331.21 3.1Test Result 3 .S11 Parameter-Smi th L Fre quency (MH z) Efficienc y (%) Peak GAIN (dBi) 2400 30.82% 1.60 2410 32.45% 1.80 2420 33.96% 2.03 2430 2.434.47%5 2440 2.935.77%6 2450 3.435.65%4 2460 3.736.75%9 2470 37.27%3.83 2480 37.37%3.92 3.2 Te st Re sul t 1 Gain & Efficiency——ANT 3 .3 Test Result 1 2D Pattern—— BTANT 3 .3 Test Result 2 2D Pattern—— BT ANT 3 .3 Test Result 3 2D Pattern——BT ANT 3.92 3.92 Te st Equipment： R&S CMW500 Te st Condition： 2D cha mbe r Ba ndChannel TRP(dBm)TIS(dBm) BT-L 0 -2.40 3 -90.72 9 1.89 7 -91.73 8 5.03 4. 1 OTA Dat -93.13 a 4.2 Test Result 1 2 D Pattern——BTANT TRP 4.2 Test Result 2 2 D Pattern——BTANT TIS Manufacturer: SHENZHEN HELIXUN TECHNOLOGY CO. LTD. Address: Room 1905, Building 2, Jufang Plaza, Tiezai Road, GongleCommunity, Xixiang Street, Bao'an District, Shenzhen

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