2BCLQ-WD66Wireless Bluetooth

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. Warning: changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment The devices has been evaluated to meet general RF exposure requirement the device can be used in portable exposure condition without restriction

C5266091_X24_Ed.2 1/1 Shenzhen Zhanjie Wenda Electronics 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 Zhanjie Wenda Electronics CO.,Ltd Grantee code: 2BCLQ FCC ID: 2BCLQ-WD66 Contact Name: Wu Jing Address: 201,Block C,No.310 Wuhe Avenue,Luhu Community,Guanhu Street,Longhua District,Shenzhen Telephone No: 13823101478 Fax No: Email: [email protected] i. [Shenzhen Zhanjie Wenda Electronics 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 Zhanjie Wenda Electronics 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 Zhanjie Wenda Electronics 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: 2023/08/25 Applicant’s Name: Wu Jing 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

Modeldifferencedeclarationletter DifferencesDescription FCCID：2BCLQ-WD66 WeShenzhenZhanjieWendaElectronicsCO.,Ltdstate: Product： WirelessBluetooth ModelName ： WD66,WD66-1,WD66-2,WD66-3,WD66-4 We(ShenzhenZhanjieWendaElectronicsCO.,Ltd)herebystatethatallthemodelsare electricalidenticalincludingthesamesoftwareparameterandhardwaredesign(i.e.,circuit design,PCBLayout,RFmodule/circuit,antennatype(s)andantennalocation,components onPCB,etc.,),samemechanicalstructureanddesign(includingproductenclosure, materials,etc.,),theonlydifferenceisthemodelnameandappearancecolor. Signatory Date:08-23.2023 Name:WuJingDate:Aug23.2023 Title:Manager Signatureofapplicant:

C5266091_X8_Ed.1 1/1 Letter of Authorization Shenzhen Zhanjie Wenda Electronics CO.,Ltd Company: Shenzhen Zhanjie Wenda Electronics CO.,Ltd Address: 201,Block C,No.310 Wuhe Avenue,Luhu Community,Guanhu Street,Longhua District,Shenzhen Product Name: Wireless Bluetooth Model Number: WD66, WD66-1, WD66-2, WD66-3, WD66-4 FCC Identifier: 2BCLQ-WD66 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: Wu Jing Date: 2023.08.25 Title: Manager Signature of applicant:

C5266091_X10_Ed.2 1/1 Shenzhen Zhanjie Wenda Electronics CO.,Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-08-25 Subject: Request for Confidentiality FCC ID: 2BCLQ-WD66 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: Wu Jing Title: Manager 2023.08.25

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LabelandLabelLocation FCCID:2BCLQ-WD66 Note ： BecauseEUTsizeisnotsuitableforprintingFCCIDnumberlabel,FCCIDlabelis addedonpage1ofthemanual

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FCCRFExposure EUTDescription:WirelessBluetooth ModelNo.:WD66,WD66-1,WD66-2,WD66-3,WD66-4 FCCID:2BCLQ-WD66 Equipmenttype:PortableDevice 1.TestProcedure AccordingtoKDB447498D01GeneralRFExposureGuidancev06 The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattest separationdistances ≤ 50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/ (min.testseparationdistance,mm)] · [ √ f(GHz)] ≤ 3.0for1-gSARand ≤ 7.5for10-g extremitySAR, where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbefore calculationTheresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparation distanceis≤50mmandfortransmissionfrequenciesbetween100MHzand6GHz. Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmisappliedto determineSARtestexclusion. 2.TestResultofRFExposureEvaluation [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)]=0.6471/5*√2.402=0.311≤3.0ThresholdatwhichnoSARrequiredis and≤3.0for1-gSAR,Separationdistanceis5mm. Mode Channel Freq.(MHz) Maximum Conducted Output Power(PK) AntennaGain (dBi) Antenna gainnumeric Tune-up power (dBm) Maxtune- uppower (W) GFSK 2402-2.891.81.51-2.89±10.0006471 2441-3.681.81.51-3.68±10.0005395 2480-3.671.81.51-3.67±10.0005407

1 FCCTestReport ReportNo:FCS202308133W01 Issuedfor Applicant:ShenzhenZhanjieWendaElectronicsCO.,Ltd Address: 201,BlockC,No.310WuheAvenue,Luhu Community,GuanhuStreet,LonghuaDistrict,Shenzhen ProductName:WirelessBluetooth BrandName:N/A ModelName:WD66 SeriesModel:WD66-1,WD66-2,WD66-3,WD66-4 FCCID: 2BCLQ-WD66 IssuedBy:FluxComplianceServiceLaboratory Add:Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-Tech Industrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.FCS-lab.com Page 2 of43ReportNo.:FCS202308133W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,Song shanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.FCS-lab.com 2 TESTRESULTCERTIFICATION Applicant’sName......................: ShenzhenZhanjieWendaElectronicsCO.,Ltd Address......................................: 201,BlockC,No.310WuheAvenue,Luhu Community,GuanhuStreet,LonghuaDistrict,Shenzhen Manufacture'sName................: ShenzhenZhanjieWendaElectronicsCO.,Ltd Address......................................: 201,BlockC,No.310WuheAvenue,Luhu Community,GuanhuStreet,LonghuaDistrict,Shenzhen ProductDescription ProductName...........................:WirelessBluetooth BrandName...............................:N/A ModelName .............................. :WD66 SeriesModel .............................. :WD66-1,WD66-2,WD66-3,WD66-4 TestStandards .......................... :FCCRulesandRegulationsPart15SubpartC,Section247 TestProcedure .......................... :ANSIC63.10:2013 ThisdevicedescribedabovehasbeentestedbyFluxComplianceServiceLaboratory,thetestresults showthattheequipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditis applicableonlytothetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofFluxCompliance ServiceLaboratory,thisdocumentmaybealteredorrevisedbyFluxComplianceServiceLaboratory, personalonly,andshallbenotedintherevisionofthedocument.. DateofTest..................................: Date(s)ofperformanceoftests.:Aug16,2023~Aug21,2023 DateofIssue.................................:Aug21,2023 TestResult....................................:Pass Testedby: (ScottShen) Reviewedby : (DukeQian) Approvedby: (JackWang) Page 3 of43ReportNo.:FCS202308133W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,Song shanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.FCS-lab.com 3 TableofContentsPage 1.SUMMARYOFTESTRESULTS..............................................................................................6 1.1TESTFACTORY................................................................................................................7 1.2MEASUREMENTUNCERTAINTY....................................................................................7 2.GENERALINFORMATION......................................................................................................8 2.1GENERALDESCRIPTIONOFTHEEUT.........................................................................8 2.2BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED.............10 2.3DESCRIPTIONOFNECESSARYACCESSORIESANDSUPPORTUNITS................11 2.4EQUIPMENTSLIST.........................................................................................................12 3CONDUCTEDEMISSIONMEASUREMENT..........................................................................13 4.20DBBANDWIDTH...............................................................................................................17 4.1Limit..................................................................................................................................17 4.2TestProcedure.................................................................................................................17 4.3Testsetup.........................................................................................................................17 4.4Testresults.......................................................................................................................17 4.5OriginalTestData............................................................................................................18 5.CONDUCTEDOUTPUTPOWER...........................................................................................19 5.1LIMIT................................................................................................................................19 5.3TESTSETUP...................................................................................................................19 5.5TESTRESULTS..............................................................................................................19 6NUMBEROFHOPPINGCHANNEL.......................................................................................20 6.1LIMIT................................................................................................................................20 6.2TESTPROCEDURE........................................................................................................20 5.3TESTSETUP...................................................................................................................20 6.4EUTOPERATIONCONDITIONS....................................................................................20 6.5TESTRESULTS..............................................................................................................21 7.BANDEDGEANDSPURIOUS(CONDUCTED)....................................................................22 7.1LIMIT................................................................................................................................22 7.2TESTPROCEDURE........................................................................................................22 7.3TESTSETUP......................................................................................................…

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