2AYVH-F041FIIL X JARVIS Earbuds

* the applicantmust designatea contactlocatedin the UnitedStatesfor purposesof actingas the applicant’s agent for serviceof process,regardlessof whetherthe applicantis a domesticor foreign entity.An applicantlocatedin the UnitedStatesmay designateitself as the agent for serviceof process. Jiangxi Feier Technology Co., Ltd. U.S. Agent Designation for Service of Process - Certification Attestation Letter 7/11/2024 Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: 2AYVH-F041 Per section 2.911(d)(7) of the FCC rules, Jiangxi Feier Technology Co., Ltd. (“the applicant”) (FRN: 0030520753) certifies that the equipment for which authorization is sought is designated to the follo w in g U .S . agent* for servic e of process: Federal Registration Number (FRN): 0033701590 Company Name: UUX GROUP INC Physical U.S. Company Address: 36 South 18th Avenue, Suite A Brighton, CO USA 80601 County: Adams Agent name: Jack Fu Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant 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. This Agreement is valid until: Eternally. A p p lic a n tS ig n e d :A g e n tS ig n e d(if d iffe re n ttoA p p lic a n t): Signed:Signed: Printedname:Chao ZhouPrintedname:Jack Fu Title: ManagerTitle: Manager CompanyName:JiangxiFeier TechnologyCo., Ltd.CompanyName:UUX GROUPINC Date: 7/11/2024Date: 7/11/2024

C5266091_X24_Ed.2 1/1 “Attestation Statements” 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: Jiangxi Feier Technology Co., Ltd. Grantee code: 2AYVH FCC ID:2AYVH-F041 FRN:0030520753 Contact Name: Chaos Zhou Address:4#floor, 1#build, No.5 changnanyuanwu road, changnan industrial park, qingyunpu district, Nanchang, jiangxi, China Telephone No:+86-138-0620-7608 Fax No:+86-010-59496389 Email: [email protected] i.[Jiangxi Feier 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. [Jiangxi Feier 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. [Jiangxi Feier Technology Co., Ltd.] (“the applicant”) 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: 2024/07/15 Applicant’s Name:Chaos Zhou Title:Director Signature 1 The Commission’sCovered Listis 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

C5266091_X8_Ed.1 1/1 Letter of Authorization Jiangxi Feier Technology Co., Ltd. Company:Jiangxi Feier Technology Co., Ltd. Address:4#floor, 1#build, No.5 changnanyuanwu road, changnan industrial park, qingyunpu district, Nanchang, jiangxi, China Product Name:FIIL X JARVIS Earbuds Model Number: F041 FCC Identifier:2AYVH-F041 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:Chaos ZhouDate: 2024-07-15 Title: Director Signature of applicant:

C5266091_X10_Ed.2 1/1 Jiangxi Feier Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2024-07-15 Subject: Request for Confidentiality FCC ID: 2AYVH-F041 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. ExhibitsLong-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/LocationNoNo Attestation StatementNoNo External PhotosNo ☒ Block Diagram ☒☐ Schematics ☒☐ Test ReportNoNo Test Setup PhotosNo ☒ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐☐ RF Exposure InfoNoNo Operational Description ☒☐ Cover Letter(s)NoNo SDR Software / Security Info ☐ No NOTE 1: Long‐Term Confidentiality may be permitted under special conditions (SeeII. 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 ___180___ 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: Chaos Zhou Title: Director

Jiangxi Feier Technology Co., Ltd. label statement Date: 2024/07/15 Product/ Model Number:FIIL X JARVIS Earbuds / F041 FCC ID: 2AYVH-F041 Due to the small size of the product, it is not possible to label it. Therefore, The label information has been included in the user manual, as shown in the manual. Signature of applicant Name: Chaos Zhou Title: Director

FCC ID:2AYVH-F041 RF Exposure Evaluation According toKDB 447498 D01 General RF Exposure Guidance v06and part 2.1093， Unless specifically required by thepublished RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the correspondingSAR Test Exclusion Thresholdcondition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances≤5mm,the1-gand10-gSARtest exclusion thresholds aredetermined by the following: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)]ꞏ[√f (GHz) ]≤3.0 for 1-g SAR, and≤7.5 for 10-g extremity SAR, where f (GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to thenearest mW and mm before calculation The result is rounded to one decimal place for comparison Here, So a SAR test is not required Mode Frequen cy (MHz) Max Power (dBm) Target power W/ tolerance (dBm) Max tune up power tolerance (dBm) Max Power (mW) Min. Distance (mm) Calc. thresholds limit BRGFSK 2402 -1.14 --1±1.0 0.0 1.0005.000.310 3.0 2441 -1.60 -2±1.0 -1.0 0.7945.000.248 3.0 2480 -1.87-2±1.0 -1.0 0.7945.000.250 3.0 EDR Π/4-DQ PSK 2402 -0.47 -1±1.0 0.0 1.0005.000.310 3.0 2441 -0.85-1±1.0 0.0 1.0005.000.312 3.0 2480-1.09 -1±1.0 0.01.0005.000.3153.0 8DPSK 24020.08 0±1.0 1.01.2595.000.3903.0 2441-0.310±1.01.01.2595.000.3933.0 2480-0.55 -1±1.0 0.01.0005.000.3153.0

Page 1 of 37 Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn FCC TEST REPORT FCC ID:2AYVH-F041 Product:FIIL X JARVIS Earbuds Model Name:F041 Brand:FIIL Report No.:NCT24028395E Prepared for Jiangxi Feier Technology Co., Ltd. 4#floor, 1#build, No.5 changnanyuanwu road, changnan industrial park, qingyunpu district, Nanchang, jiangxi, China Prepared by Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, People’s Republic of China TEL: 400-8868-419 FAX: 86-755-27790922 ReportNo.:NCT24028395E Page 2 of 37 Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn 1 TEST RESULT CERTIFICATION Applicant’s name: Jiangxi Feier Technology Co., Ltd. Address: 4#floor, 1#build, No.5 changnanyuanwu road, changnan industrial park, qingyunpu district, Nanchang, jiangxi, China Manufacture's name : Jiangxi Feier Technology Co., Ltd. Address: 4#floor, 1#build, No.5 changnanyuanwu road, changnan industrial park, qingyunpu district, Nanchang, jiangxi, China Product name: FIIL X JARVIS Earbuds Model name: F041 Standards: FCC CFR47 Part 15 Section 15.247 Test procedure: ANSI C63.10:2013 Test Date: Jul. 12, 2024-Jul. 15, 2024 Date of Issue: Jul. 16, 2024 Test Result: Pass This device described above has been tested by NCT, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of NCT, this document may be altered or revised by NCT, personal only, and shall be noted in the revision of the document. Test Engineer: Keven Wu / Engineer Technical Manager: Henry Wang / Manager ReportNo.:NCT24028395E Page 3 of 37 Hotline: 400-8868-419Fax: 86-755-27790922http://www.ncttesting.cn Contents Page 1 TEST RESULT CERTIFICATION...............................................................................................................................2 2 TEST SUMMARY.......................................................................................................................................................... 5 3 TEST FACILITY............................................................................................................................................................. 6 4 GENERAL INFORMATION..........................................................................................................................................7 4.1 G ENERALDESCRIPTION OFE.U.T.....................................................................................................................7 4.2 C HANNELLIST..................................................................................................................................................... 8 4.3 T ESTSETUPCONFIGURATION............................................................................................................................9 4.4 T ESTMODE......................................................................................................................................................... 9 5 EQUIPMENT DURING TEST.................................................................................................................................... 10 5.1 E QUIPMENTSLIST............................................................................................................................................. 10 5.2 M EASUREMENTUNCERTAINTY......................................................................................................................... 12 5.3 D ESCRIPTION OFSUPPORTUNITS...................................................................................................................12 6 CONDUCTED EMISSION.......................................................................................................................................... 13 6.1 E.U.T. O PERATION............................................................................................................................................13 6.2 EUT S ETUP....................................................................................................................................................... 13 6.3 T ESTSET-UP (BLOCKDIAGRAM OFCONFIGURATION)................................................................................. 14 6.4 M EASUREMENTPROCEDURE:...........................................................................................................................14 6.5 C ONDUCTEDEMISSIONLIMIT........................................................................................................................... 14 6.6 M EASUREMENTDESCRIPTION.......................................................................................................................... 14 6.7 C ONDUCTEDEMISSIONTESTRESULT.............................................................................................................14 7 RADIATED SPURIOUS EMISSIONS...................................................................................................................... 17 7.1 EUT O PERATION...............................................................................................................................................17 7.2 T ESTSETUP...................................................................................................................................................... 18 7.3 S PECTRUMANALYZERSETUP.......................................................................................................................... 19 7.4 T ESTPROCEDURE.............................................................................................................................................20 7.5 S UMMARY OFTESTRESULTS...........................................................................................................................21 8…

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1 样 品 规 格 书 客户： 瀛通 项目名称： EPA243 物料类别： BTInternal Antenna 版本： V1.0 日期： 2021.07.14 ShenZhen Cicent Comunication Technology CO. Ltd 2 目录 一：无源测试报告 ................................................................................................................... 3 二：BT天线3D暗室数据 ...................................................................................................... 8 三：匹配电路 ........................................................................................................................... 9 四：环境处理注意事项 ........................................................................................................... 9 五：结构图档 ......................................................................................................................... 10 变更记录栏 编制/变更日期 变更理由 变更内容 版本 2021.07.14 初版发行 初版发行 V1.0 3 一：无源测试报告 Angilent E5071C Left ear BT antenna S11 parameters 4 Efficiency and gain of left ear BT antenna： Left ear Frequency MHz Efficient% Efficient(dB ) Gain(dBi) 2400 29.0% -5.3-2.6 2410 30.0% -5.2-2.6 2420 31.0% -5.0-2.7 2430 31.0% -5.1-3.0 2440 30.0% -5.2-3.4 2450 31.0% -5.0-3.6 2460 31.0% -5.0-4.1 2470 29.3% -5.3-4.2 2480 28.0% -5.5-4.5 平均值 30.3% -5.2-3.4 Left ear antenna passive direction diagram： Theta=90.00deg 5 Phi=90.00deg Phi=0.00deg 6 Right ear BT antenna S11 parameters Efficiency and gain of right ear BT antenna： Right Frequency MHz Efficiency% Efficiency(dB ) Gain(dBi) 2400 27.9% -5.6-3.9 2410 29.5% -5.3-3.8 2420 31.0% -5.1-3.8 2430 30.9% -5.1-3.9 2440 29.8% -5.3-4.0 2450 30.1% -5.2-4.1 2460 29.8% -5.3-4.3 2470 31.5% -5.0-4.3 2480 31.3% -5.1-4.3 平均值 30.2% -5.2-4.0 7 Right ear antenna passive direction diagram Theta=90.00deg Phi=90.00deg 8 Phi=0.00deg 二：BT天线3D暗室数据 Channel TRP（dBm） TIS（dBm） L CH 0 4.0 -89.9 CH 39 4.7 -89.9 CH 78 4.6 -89.6 Channel TRP（dBm） TIS（dBm） R CH 0 4.6 -89.5 CH 39 5.0 -90.0 CH 78 4.0 -89.8 OTA Standard Chamber 9 三：匹配电路 左耳匹配电路： 右耳匹配电路： 四：环境处理注意事项 五结构图档

TableofContents 1.‐20dB Bandwidth..........................................................................................................................................................2 2. 99% Occupied Bandwidth............................................................................................................................................ 7 3. Peak Output Power.....................................................................................................................................................12 4. Spurious Emissions..................................................................................................................................................... 17 5. Bandedge....................................................................................................................................................................26 6. Carrier Frequencies Separation (Hopping).................................................................................................................39 7. Number of Hopping Channel (Hopping).................................................................................................................... 44 8. Dwell Time (Hopping).................................................................................................................................................46 Page 2 of 54 FCC ID:2AYVH-F041 FCC_BT (Part15.247) Test Data 1. -20dB Bandwidth ConditionAntennaModulationFrequency (MHz) -20dB BW(MHz)if larger than CFS NVNTANT11-DH12402.000.878No NVNTANT11-DH12441.000.977No NVNTANT11-DH12480.000.927No NVNTANT12-DH12402.001.275Yes NVNTANT12-DH12441.001.276Yes NVNTANT12-DH12480.001.274Yes NVNTANT13-DH12402.001.224Yes NVNTANT13-DH12441.001.228Yes NVNTANT13-DH12480.001.252Yes -20dB_Bandwidth_NVNT_ANT1_1-DH1_2402_00 Page 3 of 54 -20dB_Bandwidth_NVNT_ANT1_1-DH1_2441_00 -20dB_Bandwidth_NVNT_ANT1_1-DH1_2480_00 Page 4 of 54 -20dB_Bandwidth_NVNT_ANT1_2-DH1_2402_00 -20dB_Bandwidth_NVNT_ANT1_2-DH1_2441_00 Page 5 of 54 -20dB_Bandwidth_NVNT_ANT1_2-DH1_2480_00 -20dB_Bandwidth_NVNT_ANT1_3-DH1_2402_00 Page 6 of 54 -20dB_Bandwidth_NVNT_ANT1_3-DH1_2441_00 -20dB_Bandwidth_NVNT_ANT1_3-DH1_2480_00 Page 7 of 54 2. 99% Occupied Bandwidth ConditionAntennaModulationFrequency(MHz)99%%BW(MHz) NVNTANT11-DH12402.000.840 NVNTANT11-DH12441.000.852 NVNTANT11-DH12480.000.854 NVNTANT12-DH12402.001.173 NVNTANT12-DH12441.001.177 NVNTANT12-DH12480.001.176 NVNTANT13-DH12402.001.151 NVNTANT13-DH12441.001.155 NVNTANT13-DH12480.001.158 99%_Occupied_Bandwidth_NVNT_ANT1_1-DH1_2402_00 99%_Occupied_Bandwidth_NVNT_ANT1_1-DH1_2441_00 Page 8 of 54 99%_Occupied_Bandwidth_NVNT_ANT1_1-DH1_2480_00 99%_Occupied_Bandwidth_NVNT_ANT1_2-DH1_2402_00 Page 9 of 54 99%_Occupied_Bandwidth_NVNT_ANT1_2-DH1_2441_00 99%_Occupied_Bandwidth_NVNT_ANT1_2-DH1_2480_00 Page 10 of 54 99%_Occupied_Bandwidth_NVNT_ANT1_3-DH1_2402_00 99%_Occupied_Bandwidth_NVNT_ANT1_3-DH1_2441_00 Page 11 of 54 99%_Occupied_Bandwidth_NVNT_ANT1_3-DH1_2480_00 Page 12 of 54 3. Peak Output Power Condition Antenna Modulation Frequency (MHz) Max. Conducted Power(dBm) Max. Conducted Power(mW) Limit(mW) Result NVNTANT11-DH12402.00-1.140.771000Pass NVNTANT11-DH12441.00-1.600.691000Pass NVNTANT11-DH12480.00-1.870.651000Pass NVNTANT12-DH12402.00-0.470.90125Pass NVNTANT12-DH12441.00-0.850.82125Pass NVNTANT12-DH12480.00-1.090.78125Pass NVNTANT13-DH12402.000.081.02125Pass NVNTANT13-DH12441.00-0.310.93125Pass NVNTANT13-DH12480.00-0.550.88125Pass Peak_Output_Power_NVNT_ANT1_1-DH1_2402_00 Peak_Output_Power_NVNT_ANT1_1-DH1_2441_00 Page 13 of 54 Peak_Output_Power_NVNT_ANT1_1-DH1_2480_00 Peak_Output_Power_NVNT_ANT1_2-DH1_2402_00 Page 14 of 54 Peak_Output_Power_NVNT_ANT1_2-DH1_2441_00 Peak_Output_Power_NVNT_ANT1_2-DH1_2480_00 Page 15 of 54 Peak_Output_Power_NVNT_ANT1_3-DH1_2402_00 Peak_Output_Power_NVNT_ANT1_3-DH1_2441_00 Page 16 of 54 Peak_Output_Power_NVNT_ANT1_3-DH1_2480_00 Page 17 of 54 4. Spurious Emissions ConditionAntennaModulationTX ModeSpurious MAX.Value(dBm)LimitResult NVNTANT11-DH12402.00-43.766-21.229Pass NVNTANT11-DH12441.00-48.645-21.693Pass NVNTANT11-DH12480.00-46.755-21.991Pass NVNTANT12-DH12402.00-49.387-21.244Pass NVNTANT12-DH12441.00-47.323-21.729Pass NVNTANT12-DH12480.00-45.905-22.003Pass NVNTANT13-DH12402.00-48.556-21.243Pass NVNTANT13-DH12441.00-48.850-21.697Pass NVNTANT13-DH12480.00-47.185-21.987Pass 1_Reference_Level_NVNT_ANT1_1-DH1_2402_00 2_Spurious_Emissions_NVNT_ANT1_1-DH1_2402_00 Page 18 of 54 1_Reference_Level_NVNT_ANT1_1-DH1_2441_00 2_Spurious_Emissions_NVNT_ANT1_1-DH1_2441_00 Page 19 of 54 1_Reference_Level_NVNT_ANT1_1-DH1_2480_00 2_Spurious_Emissions_NVNT_ANT1_1-DH1_2480_00 Page 20 of 54 1_Reference_Level_NVNT_ANT1_2-DH1_2402_00 2_Spurious_Emissions_NVNT_ANT1_2-DH1_2402_00 Page 21 of 54 1_Reference_Level_NVNT_ANT1_2-DH1_2441_00 2_Spurious_Emissions_NVNT_ANT1_2-DH1_2441_00 Page 22 of 54 1_Reference_Level_NVNT_ANT1_2-DH1_2480_00 2_Spurious_Emissions_NVNT_ANT1_2-DH1_2480_00 Page 23 of 54 1_Reference_Level_NVNT_ANT1_3-DH1_2402_00 2_Spurious_Emissions_NVNT_ANT1_3-DH1_2402_00 Page 24 of 54 1_Reference_Level_NVNT_ANT1_3-DH1_2441_00 2_Spurious_Emissions_NVNT_ANT1_3-DH1_2441_00 Page 25 of 54 1_Reference_Level_NVNT_ANT1_3-DH1_2480_00 2_Spurious_Emissions_NVNT_ANT1_3-DH1_2480_00 Page 26 of 54 5. Bandedge ConditionAntennaModulationTX ModeBandedge MAX.ValueLimitResult NVNTANT11-DH12402.00-51.854-21.229Pass NVNTANT11-DH1Hopping_LCH-54.456-21.117Pass NVNTANT11-DH12480.00-61.403-21.991Pass NVNTANT11-DH1Hopping_HCH-55.427-21.504Pass NVNTANT12-DH12402.00-51.479-21.244Pass NVNTANT12-DH1Hoppin g_LCH-51.912-21.137Pass NVNTANT12-DH12480.00-58.319-22.003Pass NVNTANT12-DH1Hopping_HCH-56.151-21.494Pass NVNTANT13-DH12402.00-51.139-21.243Pass NVNTANT13-DH1Hopping_LCH-52.433-21.124Pass NVNTANT13-DH12480.00-61.768-21.987Pass NVNTANT13-DH1Hopping_HCH-56.176-21.517Pass 1_Reference_Level_NVNT_ANT1_1-DH1_2402_00 2_Bandedge_NVNT_ANT1_1-DH1_2402_00 Page 27 of 54 1_Reference_Level_Hopping_NVNT_ANT1_1-DH1_Hopping 2_Band_Edge_(Ho…

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