A8I-FAIRY2-MICMicrophone

-ShenzhenDivoomTechnologyCo.Ltd.- FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 6/14/24 U.S.AgentDesignation Name and company of U.S. agent: Linkwld LLC Physical U.S. address of agent: 1942 Broadway St. STE 314C, Boulder, CO, 80302, US FRN of U.S. agent: 0033625682 Email address of U.S. agent: [ShenzhenDivoomTechnologyCo.Ltd.]acknowledgestheirconsentforthefollowingcontactlocatedinthe UnitedStatestoactastheiragentforserviceofprocessfortheequipmentforwhichauthorizationissought(FCC ID:A8I-FAIRY2-MIC) [email protected] Linkwld LLC acknowledges their obligation to accept service of process on behalf of [Shenzhen Divoom Technology Co.Ltd.]. [Shenzhen Divoom Technology Co.Ltd.] with the FRN [0021371760] accepts 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. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature [Name] [Title]Manager [Company]ShenzhenDivoomTechnologyCo.Ltd. Signature [NameofU.S.agent]TimothyZhu 4 8 _ [ m o d e l ] U S _ A g e n t _ 2 . 9 1 1 ( d ) ( 7 ) - U , V 0 5 -ShenzhenDivoomTechnologyCo.Ltd.- [TitleofU.S.agent]Manager [CompanyofU.S.agent]LinkwldLLC

C5266091_X24_Ed.2 1/1 Shenzhen Divoom Technology Co., LTD. “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: Shenzhen Divoom Technology Co., LTD. FRN: 0021371760 Grantee code: A8I FCC ID: A8I-FAIRY2-MIC Contact Name: Jeffery Yao Address: 1st FIoor, 5th Building, Xinlianhe Industrial Park, Jincheng Road, Shajing Town, Bao’an, Shenzhen, China Telephone No:008675586290792 Fax No: 008675586290792 Email: [email protected] i. [Shenzhen Divoom 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. [Shenzhen Divoom 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. [Shenzhen Divoom 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: 2024/07/09 Applicant’s Name: Jeffery Yao Title: Sales 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

C5266091_X8_Ed.1 1/1 Letter of Authorization Shenzhen Divoom Technology Co., LTD. Company: Shenzhen Divoom Technology Co., LTD. Address: 1st FIoor, 5th Building, Xinlianhe Industrial Park, Jincheng Road, Shajing Town, Bao’an, Shenzhen, China Product Name: Microphone Model Number: Fairy-2-Mic FCC Identifier: A8I-FAIRY2-MIC 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: Jeffery Yao Date: 2024.07.09 Title: Sales Manager Signature of applicant:

C5266091_X10_Ed.2 1/1 Shenzhen Divoom Technology Co., LTD. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2024-07-10 Subject: Request for Confidentiality FCC ID: A8I-FAIRY2-MIC 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 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. Sincerely, Signature: Name: Jeffery Yao Title: Sales Manager 2024.07.10

FCCIDLabelLocation 20mm&40mm Theproductdoesnothaveenoughspacetoplacethelabel,andFCCID Number isreflectedin the usermanual, full Label is on the package.asbelow: FCCID:A8I-FAIRY2-MIC

RFEXPOSUREEVALUATION FCCID:A8I-FAIRY2-MIC AccordingtoKDB447498D01MobileandPortableDevicesRFExposure ProceduresandEquipmentAuthorizationPoliciesv06. AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeusedto evaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF)Radiationas specifiedin§1.1307(b): RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,using measurementsorcomputersimulation.WhenroutineSARevaluationisnotrequired, portabletransmitterswithoutputpowergreaterthantheapplicablelowthresholdrequire SARevaluationtoqualifyforTCBapproval. Channel (MHz) Maximum output power (dBm) Tuneup tolerance (dBm) MaxTuneUp Power(dBm) Distance (mm) Calculation results Limit Operating Mode 24022.862.86 ±1 3.8650.754 3 2.4G 24412.522.52 ± 1 3.5250.703 3 24802.152.15 ±1 3.1550.651 3 Result:NoStandaloneSARtestisrequired.

ReportNo.:182519C400039101FCCID:A8I-FAIRY2-MICPage1of37 FCCTestReport Applicant:ShenzhenDivoomTechnologyCo.,Ltd. Address: 1stfloor,5thBuilding,XinlianheIndustrialPark JinchengRoad,ShajingTown,Bao'an, Shenzhen,China ProductName:Microphone ReportDate:Jul.10,2024 ShenzhenAnbotekComplianceLaboratoryLimited ReportNo.:182519C400039101FCCID:A8I-FAIRY2-MICPage2of37 Contents 1.GeneralInformation.................................................................................................................................6 1.1.ClientInformation...........................................................................................................................6 1.2.DescriptionofDevice(EUT)..........................................................................................................6 1.3.AuxiliaryEquipmentUsedDuringTest..........................................................................................7 1.4.Operationchannellist....................................................................................................................8 1.5.DescriptionofTestModes.............................................................................................................8 1.6.MeasurementUncertainty.............................................................................................................8 1.7.TestSummary..............................................................................................................................10 1.8.DescriptionofTestFacility...........................................................................................................11 1.9.Disclaimer.....................................................................................................................................11 1.10.TestEquipmentList...................................................................................................................12 2.Antennarequirement..............................................................................................................................14 2.1.Conclusion...................................................................................................................................14 3.ConductedEmissionatACpowerline..................................................................................................15 3.1.EUTOperation.............................................................................................................................15 3.2.TestSetup....................................................................................................................................15 3.3.TestData......................................................................................................................................16 4.OccupiedBandwidth..............................................................................................................................18 4.1.EUTOperation.............................................................................................................................18 4.2.TestSetup....................................................................................................................................19 4.3.TestData......................................................................................................................................19 5.MaximumConductedOutputPower......................................................................................................20 5.1.EUTOperation.............................................................................................................................20 5.2.TestSetup....................................................................................................................................20 5.3.TestData......................................................................................................................................20 6.ChannelSeparation...............................................................................................................................21 6.1.EUTOperation.............................................................................................................................21 6.2.TestSetup....................................................................................................................................21 6.3.TestData......................................................................................................................................21 7.NumberofHoppingFrequencies...........................................................................................................22 7.1.EUTOperation.............................................................................................................................22 7.2.TestSetup....................................................................................................................................22 7.3.TestData......................................................................................................................................22 8.DwellTime..............................................................................................................................................23 8.1.EUTOperation.............................................................................................................................24 8.2.TestSetup....................................................................................................................................24 8.3.TestData......................................................................................................................................24 9.Emissionsinnon-restrictedfrequencybands.......................................................................................25 9.1.EUTOperation.............................................................................................................................26 9.2.T…

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求是 价值 双赢 深圳市战音科技有限公司 Shenzhen Divoom Technology Co.,Ltd. 专注天线方案、设计与生产 客 户：骅科 项 目：D01 日 期：2024.06.12 版 本：A1 射 频： Shenzhen Top Frequency IOT Technology Co.,Ltd. 求是 价值 双赢 目 录 1. Test environment 2. Description of previous commissioning records 3. Description of matching circuit 4. Active test data 5. Conduction test data 6. Acoustic simulation test of call current 7. Environmental Treatment Description 8. GPS/WIFI/BT passive parameters 9. Measured effect of GPS/WIFI/BT 10. Summary 求是 价值 双赢 测试环境 测试项目设备 1. S参数 （S- parameter） 1. 回波损耗 （Return Loss） 2. 电压驻波比（VSWR） 网络分析仪: Agilent E5071B HP 8753D 2. 有源测试 （Active ） 1. 发射功率 （TRP） 2. 接收灵敏度（TIS） 3.频率误差 4.屏灭、屏亮 1. 暗室：ETS 7x4x3 m (3D) Chamber ETS 5x3x3 m (3D) Chamber 2.综合测试仪: Agilent 8960 E5515B ×2 StarPoint SP6011 3.无源测试 （Passive） 1.天线增益 （Gain） 2.天线效率 （Efficiency） 1. 暗室：ETS 7x4x3 m (3D) Chamber ETS 5x3x3 m (3D) Chamber 2. 网络分析仪：Agilent E5071B HP 8753D 求是 价值 双赢 Description of previous commissioning records DateEditionDescription of commissioning records 2024-06-12 A1Bluetooth cable, test prototype 求是 价值 双赢 ModelBluetooth watch TypographyA main board Antenna overview Antenna status Antenna status Antenna form Design area Match Changes Bluetooth antenna BT2.4GHz~2.5GHz Bluetooth cable D:0.6mm L:25mm Monopole支架无 Prototype status Commissioning the machine Environmental treatment Multiple locations Complete machine debugging instructions 求是 价值 双赢 Environmental treatment： 求是 价值 双赢 Dimensions： Follow the sample environment provided by your company 求是 价值 双赢 Actual measurement of BT antenna： 1. Android mobile phone connects to the bracelet, and the mobile phone plays music (Indoor) The straight-line distance of the front test is 36m when there is no obstacle. The straight distance of back to back test is 26m when there is no obstacle. 2. Android mobile phone connects to the bracelet, and the mobile phone plays music (Outdoor) The straight-line distance of the front test is 25m when there is no obstacle. The straight distance of back to back test is 13m when there is no obstacle。 3. Android mobile phone connects to the bracelet, and APP searches for watches (Indoor) The straight-line distance of the front test is 40m when there is no obstacle. The straight distance of back to back test is 30m when there is no obstacle. 测试软件 求是 价值 双赢 Antenna Passive Efficiency Gain Data Frequency ID1 2 3 4 5 6 7 8 9 10 11 Frequency (MHz)2400.02410.02420.02430.02440.02450.02460.02470.02480.02490.02500.0 Point Values Ant. Port Input Pwr. (dBm) 0.000.000.000.000.000.000.000.000.000.000.00 Tot. Rad. Pwr. (dBm) -7.55-7.70-7.81-7.66-7.78-7.52-7.65-7.84-7.83-7.63-7.61 Peak EIRP (dBm) -2.68-2.69-2.77-2.59-2.49-2.14-2.30-2.55-2.63-2.48-2.39 Directivity (dBi) 4.865.015.045.075.295.385.355.285.215.155.22 Efficiency (dB) -7.55-7.70-7.81-7.66-7.78-7.52-7.65-7.84-7.83-7.63-7.61 Efficiency (%) 17.6017.0016.5017.2016.7017.7017.2016.5016.5017.3017.30 Gain (dBi) -2.68-2.69-2.77-2.59-2.49-2.14-2.30-2.55-2.63-2.48-2.39 NHPRP ±Pi/4 (dBm) -9.03-9.20-9.35-9.22-9.35-9.09-9.21-9.40-9.41-9.24-9.28 NHPRP ±Pi/6 (dBm) -10.63-10.78-10.91-10.76-10.90-10.63-10.74-10.93-10.99-10.89-10.98 NHPRP ±Pi/8 (dBm) -11.89-12.00-12.11-11.94-12.07-11.81-11.93-12.15-12.25-12.19-12.33 Upper Hem. PRP (dBm) -12.40-12.50-12.59-12.41-12.48-12.14-12.18-12.28-12.19-11.93-11.83 Lower Hem. PRP (dBm) -9.27-9.45-9.57-9.42-9.58-9.35-9.53-9.77-9.82-9.64-9.68 Upper Hem. PRP (%) 5.765.635.515.745.656.116.055.916.046.426.57 Lower Hem. PRP (%) 11.8411.3611.0311.4211.0211.6111.1410.5410.4310.8610.77 求是 价值 双赢 Antenna pattern and apple chart Gain:dBi X -2.14dBi Shenzhen Top Frequency IOT Technology Co.,Ltd. 求是 价值 双赢 Prompt description Tips: 1、 This data is only for the data generated by the prototype provided by the customer, and does not represent the customer's final mass production status; 2、 The customer is requested to carefully confirm the description of matching circuit modification and environmental treatment in our report; 3、 Before mass production, please provide trial production prototype to our company for secondary verification; Please inform us in advance if there are material changes, software updates and environmental treatment; 4、 If the customer needs a third party to retest or send it to the customer for testing, please come to our company for verification before sending the prototype; Prevent the machine from being different from the commissioning machine; 5： We do not accept the machine data other than our debugging and other darkroom test data, but you can refer to it, except for the certified darkroom. If there is any difference in the data, the debugging machine shall prevail to find the reason. Shenzhen Top Frequency IOT Technology Co.,Ltd. 求是 价值 双赢 谢谢! 此报告中所包含的一切信息、版权归我司所有，再未经我司许可的情况下，请勿散播给第三方

Page1of21 AppendixTestData ReportNo.:182519C400039101TestSampleNo.:1-2-2 StartTestDate:2024.5.30FinishTestDate:2024.6.12 TestEngineer:Auditor: Temperature:25.5 °C RelativeHumidity:47% Pressure:101kPa AppendixA:20dBBandwidth TestResult TestModeAntennaFrequency[MHz] 20db EBW[MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict 2.4G Ant124021.0442401.4602402.504------ 2.4GAnt124410.9782440.5232441.501------ 2.4GAnt124800.9902479.5142480.504------ Page2of21 TestGraphs 2.4G-Ant1-2402 2.4G-Ant1-2441 2.4G-Ant1-2480 Page3of21 AppendixB:99%OccupiedBandwidth TestResult TestModeAntennaFrequency[MHz] OCB[MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict 2.4GAnt124020.914432401.54722402.4616------ 2.4GAnt124410.900672440.55022441.4508------ 2.4GAnt124800.904542479.55022480.4547------ Page4of21 TestGraphs 2.4G-Ant1-2402 2.4G-Ant1-2441 2.4G-Ant1-2480 Page5of21 AppendixC:MaximumConductedOutputPower TestResultPeak Test Mode AntennaFrequency[MHz] ConductedPeak Power[dBm] Conducted Limit[dBm] Verdict 2.4GAnt124022.86≤20.97PASS 2.4GAnt124412.52≤20.97PASS 2.4GAnt124802.15≤20.97PASS TestGraphs 2.4G-Ant1-2402-PASS 2.4G-Ant1-2441-PASS Page6of21 2.4G-Ant1-2480-PASS Page7of21 AppendixD:Carrierfrequencyseparation TestResult TestModeAntennaFrequency[MHz]Result[MHz]Limit[MHz]Verdict 2.4GAnt1Hop1.338≥1.044PASS Page8of21 TestGraphs 2.4G-Ant1-Hop-PASS Page9of21 AppendixE:DwellTime TestResult TestModeAntennaFrequency[MHz] BurstWidth [ms] TotalHops [Num] Result[s]Limit[s]Verdict 2.4GAnt1Hop2.8801020.294≤0.4PASS Page10of21 TestGraphs 2.4G-Ant1-Hop-PASS Page11of21 AppendixF:NumberofHoppingChannel TestResult TestModeAntennaFrequency[MHz]Result[Num]Limit[Num]Verdict 2.4GAnt1Hop79≥15PASS Page12of21 TestGraphs 2.4G-Ant1-Hop-PASS Page13of21 AppendixG:ConductedBandedge TestResult TestModeAntennaChNameFrequency[MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict 2.4GAnt1Low24022.73-28.81≤-17.27PASS 2.4GAnt1High24801.76-56.87≤-18.24PASS 2.4GAnt1LowHop_24022.64-56.54≤-17.36PASS 2.4GAnt1HighHop_24801.77-55.89≤-18.23PASS Page14of21 TestGraphs 2.4G-Ant1-2402-PASS 2.4G-Ant1-2480-PASS 2.4G-Ant1-Hop_2402-PASS Page15of21 2.4G-Ant1-Hop_2480-PASS Page16of21 AppendixH:ConductedSpuriousEmission TestResult TestModeAntennaFrequency[MHz] FreqRange [MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict 2.4GAnt124020~Reference1.941.94---PASS 2.4GAnt1240230~10001.94-68.88≤-18.06PASS 2.4GAnt124021000~265001.94-44.11≤-18.06PASS 2.4GAnt124410~Reference1.691.69---PASS 2.4GAnt1244130~10001.69-67.85≤-18.31PASS 2.4GAnt124411000~265001.69-43.47≤-18.31PASS 2.4GAnt124800~Reference1.301.30---PASS 2.4GAnt1248030~10001.30-68.68≤-18.7PASS 2.4GAnt124801000~265001.30-44.67≤-18.7PASS Page17of21 TestGraphs 2.4G-Ant1-2402-0~Reference-PASS 2.4G-Ant1-2402-30~1000-PASS 2.4G-Ant1-2402-1000~26500-PASS Page18of21 2.4G-Ant1-2441-0~Reference-PASS 2.4G-Ant1-2441-30~1000-PASS 2.4G-Ant1-2441-1000~26500-PASS Page19of21 2.4G-Ant1-2480-0~Reference-PASS 2.4G-Ant1-2480-30~1000-PASS 2.4G-Ant1-2480-1000~26500-PASS Page20of21 AppendixI:DutyCycle TestResult TestModeAntennaFrequency[MHz] ONTime [ms] Period [ms] DutyCycle [%] DutyCycle Factor[dB] 2.4GAnt124022.883.7477.011.13 2.4GAnt124412.883.7576.801.15 2.4GAnt124802.893.7577.071.13 TestGraphs NTNV-2.4G-Ant1-2402 NTNV-2.4G-Ant1-2441 Page21of21 NTNV-2.4G-Ant1-2480 ---End---