2ALVK-ONN36017613Wireless earphones

UNITED STATES DESIGNATED AGENT LETTER Date: 2026-02-06 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Applicant U.S. designated agent Company Name: Cosonic Intelligent Technologies Co.,Ltd. Company Name: United Consulting Technology Services Co., Ltd. FRN: 0022729867 FRN: 0033495714 Grantee Code: 2ALVK Contact Name: Nick Yu Contact Name David Wu Address: NO.3 Keyuan Road, Songshan Lake District, Dongguan, Guangdong 523808 China Address: 17800 CASTLETON ST STE 665 CITY OF INDUSTRY CA 91748 United States City/Province/Zip: City/Province/Zip: Telephone: 0769-86596999 Telephone: (626) 217-4022 Fax: Fax: Email: [email protected] Email: [email protected] Applicable Equipment: FCC ID: 2ALVK-ONN36017613 ATTN: Director of Certification: We, Cosonic Intelligent Technologies Co.,Ltd. and United Consulting Technology Services Co., Ltd. understand and acknowledge the applicants consent and the designated agent’s obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and e-mail of the designated agent listed above. We, Cosonic Intelligent Technologies Co.,Ltd. and United Consulting Technology Services Co., Ltd. acknowledge the applicant’s acceptance of its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Applicant U.S. designated agent Name (Printed): Nick Yu Name (Printed): David Wu Title: Certification manager Title: CEO Signature: Signature:

FCC COVERED LIST DECLARATION LETTER Page 1 of 1 Revision 1.0 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name Cosonic Intelligent Technologies Co.,Ltd. Address NO.3 Keyuan Road, Songshan Lake District, Dongguan, Guangdong 523808 China FRN 0022729867 Grantee Code 2ALVK FCC ID: 2ALVK-ONN36017613 Authorized Contact Name Nick Yu Contact Phone 0769-86596999 Contact Email [email protected] Cosonic Intelligent Technologies Co.,Ltd. (“the applicant”) certifies: - 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. - as of the date of the filing of the application, the applicant [is not] identified on the Covered list, established pursuant to §1.50002, as an entity producing “covered” equipment. - the software to be loaded prior to marketing of the equipment identified above is not “covered” software manufactured by any entity including predecessors, successors, parents, subsidiaries, affiliates or any entity which has rebranded or relabeled the software produced by the entity(ies) identified on the “Covered List”. - the device is not capable of storing or running software listed on the covered list and therefore is not inherently compliant. NOTE: Justification/evidence explaining how compliance is met must accompany this letter Link to the Covered List: Covered List Applicant Signature: Date: 2026-02-06 Print Name: Nick Yu Title: Certification manager *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

Applicant Declaration QSF27-14-04 Rev 1.4 April 25, 2025 Page 1 of 1 Original Issue: Jan. 4, 2021 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name Cosonic Intelligent Technologies Co.,Ltd. Address NO.3 Keyuan Road, Songshan Lake District, Dongguan, Guangdong 523808 China FRN 0022729867 Grantee Code 2ALVK FCC ID: 2ALVK-ONN36017613 Authorized Contact Name Nick Yu Contact Phone 0769-86596999 Contact Email [email protected] I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. b) in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for: (1) labeling the equipment with the exact FCC ID as specified in this application, (2) compliance statement labeling pursuant to the applicable rules, (3) compliance of the equipment with the applicable technical rules, c) if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCC’s technical requirements. d) in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. e) in accordance with ISO 17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements. (1) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2) the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. (3) the Applicant shall, upon request by SGS, at the Applicant’s expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) neither the Applicant nor any party to the application is subject to a denial of Federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a “party” for these purposes. g) the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc. terms and conditions as specified in the TCB Application Form 731 (QSF27-14-01). Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Link to the Covered List: Covered List Applicant Signature: Date:2026-02-06 Print Name: Nick Yu Title: Certification manager *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

Cosonic Intelligent Technologies Co.,Ltd. Date: 02/06/2026 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 From: Regarding: Confidentiality Request regarding application for FCC ID: 2ALVK-ONN36017613 LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commission’s rules, the applicant hereby requests confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions Tune up procedure The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. SHORT TERM CONFIDENTIALITY Additionally, the applicant requests the following documents be held confidential until the device is marketed or 180 days from the grant date, whichever is less. If the device is marketed within 180 days of the Grant Date, the applicant will notify the TCB per FCC KDB 726920 D01 Confidentiality Request Procedures. Delete any document that is NOT included in your application External Photos Internal Photos Test Setup Photos User manual(s) Print Name: Nick Yu Title: Certification manager Signature: On behalf of Company: Cosonic Intelligent Technologies Co.,Ltd. Telephone: 0769-86596999 E-mail: [email protected]

Cosonic Intelligent Technologies Co.,Ltd. Date: 02/06/2026 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: FCC ID: 2ALVK-ONN36017613 To whom it may concern: We, the undersigned, hereby authorize SGS-CSTC Standards Technical Services Co., Ltd. (SGS) to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent on our behalf shall have the same effect as acts of our own. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). Where our agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by SGS North America, Inc., still resides with Cosonic Intelligent Technologies Co.,Ltd. This authorization is valid until further written notice from the applicant. Print Name: Nick Yu Title: Compliance Manager Signature: On behalf of Company: Cosonic Intelligent Technologies Co.,Ltd. Telephone: 0769-86596999 E-mail: [email protected]

Label placement To Federal Communication Commission Equipment Authorization Branch 7 435 Oakland Mills Road Columbia, MID 21046 For the following product, Model Number: AABLK36017613, AAWHT36017613 FCC ID: 2ALVK-ONN36017613 The FCC ID is not affixed on the product itself, but described in the product user manual and the product package/case due to below reasons. Reasons： The product is too small to put the label on it. The Size is below: Charging case: 2.27 x 2.04 x 0.98 inches Earbuds: 1.29 x 0.72 x 0.31 inches Print Name: Nick Yu Title: Certification manger Signature: On behalf of Company: Cosonic Intelligent Technologies Co.,Ltd. Telephone: 0769-86596999 E-mail: [email protected]

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01 Rev. A/2 Report No.: SZCR260100019904 Page: 1 of 35 Keny Xu EMC Laboratory Manager SAR TEST REPORT Application No.: SZCR2601000199AT Applicant: Cosonic Intelligent Technologies Co.,Ltd. Address of Applicant: NO.3 Keyuan Road, Songshan Lake District, Dongguan, Guangdong 523808 China Manufacturer: Cosonic Intelligent Technologies Co.,Ltd. Address of Manufacturer: NO.3 Keyuan Road,Songshan Lake District, Dongguan City, Guangdong Province EUT Description: Wireless earphones Model No.: AABLK36017613, AAWHT36017613   Please refer to section 1.1 of this report which indicates which model was actually tested and which were electrically identical. Trade Mark: ONN FCC ID: 2ALVK-ONN36017613 Standards: FCC 47CFR §2.1093 Date of Receipt: 2026-01-13 Date of Test: 2026-03-16 Date of Issue: 2026-03-18 Test Result : PASS * * In the configuration tested, the EUT detailed in this report complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01 Rev. A/2 Report No.: SZCR260100019904 Page: 2 of 35 Revision Record Version Description Date Remark 01 2026-03-18 Original Authorized for issue by: Bill Chen/Project Engineer Eric Fu / Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01 Rev. A/2 Report No.: SZCR260100019904 Page: 3 of 35 TEST SUMMARY Frequency Band Maximum Reported SAR(W/kg) Head BT 0.51 SAR Limited(W/kg) 1.6 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZSAR-TRF-01 Rev. A/2 Report No.: SZCR260100019904 Page: 4 of 35 Contents 1 General Information .......................................................................................................... 6 1.1 General Description of EUT ........................................................................................ 6 1.2 Test Specification ......................................................................................................... 7 1.3 RF exposure limits........................................................................................................ 8 1.4 Test Location ................................................................................................................. 9 1.5 Test Engineer ................................................................................................................ 9 1.6 Test Facility ................................................................................................................... 9 2 Laboratory Environment ............................................................................................... 10 3 SAR Measurements System Configuraion ............................................................... 11 3.1 The SAR Measurement System .............................................................................. 11 3.2 Isotropic E-field Proble EX3DV4 .............................................................................. 13 3.3 Data Acquisition Electronics (DAE) ......................................................................... 14 3.4 SAM Twin Phantom ................................................................................................... 14 3.5 ELI Phantom................................................................................................................ 15 3.6 Device Holder for Transmitters ................................................................................ 16 3.7 Measurement Procedure ........................................................................................... 17 3.7.1 Scanning procedure ............................................................................................ 17 3.7.2 Data storage ......................................................................................................... 19 3.7.3 Data Evaluation by SEMCAD ............................................................................ 19 4 SAR measurement variability and uncertainty ....................................................... 21 4.1 SAR measurement variability ................................................................................... 21 4.2 SAR measurement uncertainty ................................................................................ 21 5 Desciption of Test Position .......................................................................................... 22 5.1 The EUT Test Position .............................................................................................. 22 6 SAR System Verificaion Procedure ........................................................................... 23 6.1 Tissue Simulate Liquid .............................................................................................. 23 6.1.1 Recipes for Tissue Simulate Liquid .................................................................. 23 6.1.2 Measurement for Tissue Simulate Liquid ........................................................ 24 6.2 SAR System Check.................................................................................................... 25 6.2.1 Justification for Extended SAR Dipole Calibrations ....................................... 26 6.2.2 Summary System Check Result(s)................................................................... 27 6.2.3 Detailed System Check Results ........................................................................ 27 7 Test Configuration .......................................................................................................... 28 7.1 Operation Configurations .......................................................................................... 28 7.1.1 BT Test Configuration ......................................................................................... 28 8 Test Result ........................................................................................................................ 30 SGS-CSTC Standards …

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SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260100019903 Page: 1 of 100 Keny Xu EMC Laboratory Manager TEST REPORT Application No.: SZCR2601000199AT Applicant: Cosonic Intelligent Technologies Co.,Ltd. Address of Applicant: NO.3 Keyuan Road, Songshan Lake District, Dongguan, Guangdong 523808 China Manufacturer: Cosonic Intelligent Technologies Co.,Ltd. Address of Manufacturer: NO.3 Keyuan Road,Songshan Lake District, Dongguan City, Guangdong Province Factory: COSONIC VIETNAM COMPANY LIMITED Address of Factory: Lot C51, Ba Thien Il Industrial Park, Thien Ke Ward, Binh Xuyen District, Vinh Phuc Province,Vietnam Equipment Under Test (EUT): EUT Name: Wireless earphones Model No.: AABLK36017613, AAWHT36017613   Please refer to section 2 of this report which indicates which model was actually tested and which were electrically identical. Trade Mark: ONN FCC ID: 2ALVK-ONN36017613 Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2026-01-13 Date of Test: 2026-02-15 to 2026-03-13 Date of Issue: 2026-03-18 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260100019903 Page: 2 of 100 Revision Record Version Chapter Date Modifier Remark 01 2026-03-18 Original Authorized for issue by: Bill Chen/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260100019903 Page: 3 of 100 2 Test Summary Radio Spectrum Technical Requirement Item Standard Method Requirement Result Antenna Requirement 47 CFR Part 15, Subpart C 15.247 N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Radio Spectrum Matter Part Item Standard Method Requirement Result Radiated Emissions which fall in the restricted bands 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2020) Section 6.10.5 & 11.12 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Below 1GHz ANSI C63.10 (2020) Section 6.4,6.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Above 1GHz ANSI C63.10 (2020) Section 6.6 & 11.12 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Maximum Conducted Output Power ANSI C63.10 (2020) Section 11.9.1 47 CFR Part 15, Subpart C 15.247(b)(3) Pass Minimum 6dB Bandwidth ANSI C63.10 (2020) Section 11.8.1 47 CFR Part 15, Subpart C 15.247a(2) Pass Power Spectral Density ANSI C63.10 (2020) Section 11.10.2 47 CFR Part 15, Subpart C 15.247(e) Pass Conducted Band Edges Measurement ANSI C63.10 (2020) Section 6.10.4 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions ANSI C63.10 (2020) Section 11.11 47 CFR Part 15, Subpart C 15.247(d) Pass Declaration of EUT Family Grouping: Model No.: AABLK36017613, AAWHT36017613 Only the model AABLK36017613 was tested, since according to the declaration from the applicant, the electrical circuit design, PCB layout, components used and internal wiring and functions were identical for the above models, with only difference being of color. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260100019903 Page: 4 of 100 3 Contents Page 1 Cover Page ................................................................................................................................................ 1 2 Test Summary ........................................................................................................................................... 3 3 Contents .................................................................................................................................................... 4 4 General Information .................................................................................................................................. 6 4.1 Details of E.U.T. ................................................................................................................................. 6 4.2 Description of Support Units .............................................................................................................. 6 4.3 Measurement Uncertainty .................................................................................................................. 6 4.4 Test Location ...................................................................................................................................... 7 4.5 Test Facility ........................................................................................................................................ 7 4.6 Deviation from Standards ................................................................................................................... 7 4.7 Abnormalities from Standard Conditions ........................................................................................... 7 5 Equipment List .......................................................................................................................................... 8 6 Radio Spectrum Technical Requirement ............................................................................................. 10 6.1 Antenna Requirement ...................................................................................................................... 10 6.1.1 Test Requirement: ....................................................................................................................... 10 6.1.2 Conclusion ................................................................................................................................... 10 7 Radio Spectrum Matter Test Results .................................................................................................... 11 7.1 Radiated Emissions which fall in the restricted bands ..................................................................... 11 7.1.1 E.U.T. Operation ....…

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SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260100019903 Page: 95 of 100 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260100019903 Page: 96 of 100 5.2.2 CSE 1M_LCH_2402MHz_Ant1_NTNV 1M_LCH_2402MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260100019903 Page: 97 of 100 1M_MCH_2440MHz_Ant1_NTNV 1M_HCH_2480MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260100019903 Page: 98 of 100 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260100019903 Page: 99 of 100 2M_LCH_2402MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260100019903 Page: 100 of 100 2M_HCH_2480MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV - End of the Report -

111 SPECIFICATIONFORAPPROVAL JiaheIntelligentTechnologyCo.,LTD Customer： antenna-L- Product： 300116190291C00 PartNo.: Customer(business)confirmationandreply: Signature ： PASSEDREJECTED FPCantenna Product ： CE-2257N PartNo.： SamplesNo. ： DrawingNo.： 2026-3-27 Date: beardo PreparedBy checkTo ProofedBy carefulpit CheckedBy DATE: DATE: DATE: InnovationINNOVATIONTrustRELIABILITYsatisfactionSATISFACTION ShenzhenYushengCommunicationEquipmentCo.,LTD SHENZHENYUSHENGCOMMUNICATIONEQUIPMENTCO.,LTD Address:4A,Floor4,Building2,NantaiyunChuangguPark,intersectionofGuangmingAvenueand DongchangRoad,GuangmingDistrict,Shenzhen TEL：0755-23984257FAX：0755-86090455 FormNumber:CO-ENG-031B Environmentalprotection: RoHS2.0/REACH Version:A/0 ShenzhenYushengCommunicationEquipmentCo.,LTD 211 CE-2257NAntennaspecifications Customername:JiaheIntelligentTechnologyCo.,LTD Customername:CE-2257N Productname:antenna-L Sizeofproduct: PleaseseetheBOMtablelistformoredetails Materialcode:300116190291C00 ChangeContentCV: order number editionstateavailability date person liable page number remarks 1R:Aeditioprinceps2026.3.27LiJieyi11 TheSupplieracknowledgesthesignatureofthefollowingpart: Responsibleperson/dateIQC/dateReview/DateApproval/Date MD BiYezhi SuGuanfeng ZengXianggood RFJiangMningfei TheDemanderacknowledgesthesignature(pleasesenditbackafterconfirmation): Thedemandertheresult:□qualified□unqualified Development& DesignEngineer/ Date SQEEngineer/DatePurchasingLeader/ Date DevelopmentManager approval/date ShenzhenYushengCommunicationEquipmentCo.,LTD 311 Catalogue 1.OVERVIEW.........................................................................4 1.1SCOPEOFAPPLICATION ..............................................................4 1.2PROJECTBASICINFORMATION ........................................................4 2.TECHNICALINDEXREQUIREMENTS......................................................4 2.1INTRODUCTIONOFTESTITEMSANDEQUIPMENT .........................................4 2.2ACTIVEREPORTING .................................................................4 2.2.1TESTINSTRUCTIONS...............................................................4 2.2.2ANTENNAHASNOPOWER.........................................................5 2.2.3L-ANTENNAPASSIVEAPPLEDIAGRAM.................................................6 2.2.4ACTIVEANTENNAPARAMETERS ......................................................6 2.2.5ANTENNAMEASUREDDATA .........................................................7 3.STRUCTURALDRAWINGS..............................................................8 LANTENNA ..........................................................................8 4.LISTOFMATERIALS ..................................................................9 5.PACKAGESCHEMATICDIAGRAM.......................................................10 ShenzhenYushengCommunicationEquipmentCo.,LTD 411 1.Overview 1.1Scopeofapplication ThisrequirementspecifiestheantennatechnicalrequirementsandmaterialrequirementsspecificationsforCE-2177NproductsThisrequirementappliestoCE-2257NAntennatypeselection,test,and acceptance. 1.2Projectbasicinformation Antennaname: CE-2257N Antennafrequency: BT：2400-2500MHZ Antennamaterial:FPCantenna 2.Technicalindexrequirements 2.1Introductionoftestitemsandequipment inventor y testitem equipment Active test TRP,TISIntegratedtester,microwavedarkroom 2.2ActiveReporting 2.2.1Testinstructions Testtools:Agilent8960instrument,R&SCMW500,fullwavefarfieldETSdarkroom,high precisionpositioningsystemanditscontrollerandcomputerwithautomatictestprogram Testenvironment:temperature22°C±3°C,humidity50%±15% Testmethod:DUTisfixedinthecenteroftheturntablewithHplane,onthesamehorizon tallineasthecenterofthehornantenna. ThepositioningsystemenablestheDUTtorotateinthewholespheretosatisfythehigh- precision3Dpositioning.EachRFinstrumentandturntablecontrollercommunicatewith thePCwithautomatictestsoftwarethroughtheGPIBinterface ShenzhenYushengCommunicationEquipmentCo.,LTD 511 2.2.2Antennahasnopower Freq productive ness(%) Productiven ess(dB) gain(dBi) 2400.0 22.87%-6.41-3.16 2410.0 23.22%-6.34-3.02 2420.0 23.95%-6.21-2.83 2430.0 24.53%-6.10-2.67 2440.0 25.65%-5.91-2.47 2450.0 26.33%-5.80-2.45 2460.0 26.12%-5.83-2.56 2470.0 25.42%-5.95-2.68 2480.0 24.78%-6.06-2.87 2490.0 23.96%-6.21-3.12 2500.0 23.43%-6.30-3.28 ShenzhenYushengCommunicationEquipmentCo.,LTD 611 2.2.3L-antennapassiveapplediagram 2.2.4Activeantennaparameters ChannelNo. 1#L/Freespacetestdata TRP(dBm)TIS(dBm) 00.72-88.84 39 1.15-89.54 781.38-89.62 ChannelNo. 1#L/Head/Eartestdata TRP(dBm)TIS(dBm) 0-3.27-83.57 39-2.81-83.94 78 -3.58-84.19 ShenzhenYushengCommunicationEquipmentCo.,LTD 711 2.2.5Antennameasureddata testmethod: 1.DistanceTest:ConnectthephonetoaBluetoothheadsetandplaceitonanon- metallicstand60cmhigh.Thetesterwearstheheadsetandwalksbackwardwhile rotating360degrees.Measurethemaximumdistancewherecallandmusicplayback remainuninterruptedwithintheheadset. 2.Close-rangetesting:Thetestercarriesamobilephone(preferablyintherearpocket ofpantswiththemainearpiecefacingtheBluetoothearphones)toconductrotational testsonthehumanbodytodetectanydisengagement. 3.Hands-overheadtest:Thetesterwearsheadphonesandconnectstoamobilephone toplaymusic,testingtwoscenarios:1)Fingertip-uptesttoassesswhetherthereisany musicinterruption;2)Fingertip-backtesttoevaluatewhetherthereisanymusic interruption. Testsite：Intheopenareaoutsideourbuilding(seetestenvironment) testing facility： iPone6 testresult： listento music Whentheleftandrightearsserveasmutualprimaryears,nocrosstalk occursduringthe14Mpulldistancetest. ShenzhenYushengCommunicationEquipmentCo.,LTD 811 3.Structuraldrawings Lantenna ShenzhenYushengCommunicationEquipmentCo.,LTD 911 4.Listofmaterials ShenzhenYushengCommunicationEquipmentCo.,LTD 1011 5.Packageschematicdiagram Packaging m ethoddiagra m productna m e antenna Project m odel CE-2257N Filedetails CartonSize 1: 270*260*200MM CartonSize 2: 260*200*200MM CartonSize 3: Dependingonthe orderquantity / volu m e Boating m ethod The m ini m u …

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111 SPECIFICATIONFORAPPROVAL JiaheIntelligentTechnologyCo.,LTD Customer： antenna-R- Product： 300116190292C00 PartNo.: Customer(business)confirmationandreply: Signature ： PASSEDREJECTED FPCantenna Product ： CE-2257N PartNo.： SamplesNo. ： DrawingNo.： 2026-3-27 Date: beardo PreparedBy checkTo ProofedBy carefulpit CheckedBy DATE: DATE: DATE: InnovationINNOVATIONTrustRELIABILITYsatisfactionSATISFACTION ShenzhenYushengCommunicationEquipmentCo.,LTD SHENZHENYUSHENGCOM…

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