2BRWF-CQ-HI201Wireless Headphones

Shenzhen Shi Kang Qi Er Ke Ji You Xian Gong Si 3/F, Building B, West Gate, No_ 18, Jiuwei 1st Road Jiuwei Community, Hangcheng Street, Bao'an District Shenzhen, China －－－－－－－－－－－－－－－－－－－－－－－－今-----•••• -----••• ----• ---------•••••• 畴一一..一一一------------------- ---------一一一--哑会----------一一一一一一会--畸------------------ ----- -- Date: 2025-12-18 Federal Communications Commission Authorization and Evaluation Division 7 435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d) (5) (i) Filing FCC ID: 2BRWF-CQ-Hl201 To Whom It May Concern: Shenzhen Shi Kang Qi Er Ke Ji You Xian Gong Si certifies that the equipment for which authorization is sought 卢"covered » equipmentprohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Shenzhen Shi Kang Qi Er Ke Ji You Xian Gong Si certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 001 Covered E quipment Guidance section B(2a). 口Deviceis inherently compliant based on hardware limitations or software controls. or 口ASoftware Bill of Materials (SBOM) is provided to the TCB for review, and 口The end-user or third parties cannot install additional software on this device. Sincerely, 伽E 从e,V) Signatory [YouE Chen, Manager] √

Shenzhen Shi Kang Qi Er Ke Ji You Xian Gong Si 3/F, Building B, West Gate, No. 18, Jiuwei 1st Road Jiuwei Community, Hangcheng Street, Bao'an District Shenzhen, Chin a --·-··········-····· 一．．．．．．．一．．．．．．．．一．．．．．．．．一．．．．啊..一．．一．．．．一．．一．．．一．．．｀．．一..........一．．衄·磷．．伽....一.......鲍·········己·····················呵············ Date: 2025-12-18 FEDERAL COMMUNICATIONS COMMISSION AUTHORIZATION AND EVALUATION DIVISION 7 435 OAKLAND MILLS ROAD COLUMBIA, MD 21046 SUBJECT: FCC Application for FCC ID: 2BRWF-CQ-Hl201 Confidentiality Request To whom it may concern, Pursuant to the provisions of the Commission's rules Ti八le 47 Sections§0.457 and§0.459, we are requesting the Commission to withhold the follONing attachment(s) as confidential documents from public disclosure indefinitely. 因BlockDiagram口Tune-UpInformation 因OperationalDescription, SBOM O Security Information 因Schematics口SoftwareDefined Radio (SOR) Information 口PartsList The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR§2.1204, w h ile ensliring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); 口 External Photos 因 Test Setup Photos 因 Internal Photos 因 User Manual 口For45 days, pursuant to Public Notice DA04-1705. o r 因 For 180 days pursuant to KDB 726920 001. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and alt accompanying documentation will not be made before the date of the Grant for this application. Sincerely, 丫0\,,{ E: uh勾＼ Signatory {YouE Chen, Manager]

ReferenceNo.:WTX25X08229926W001Page2of13 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EXHIBIT2-EUTEXTERNALPHOTOGRAPHS EUTView1 EUTView2 ReferenceNo.:WTX25X08229926W001Page3of13 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EUTView3 EUTView4 ReferenceNo.:WTX25X08229926W001Page4of13 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EUTView5 EUTView6 ReferenceNo.:WTX25X08229926W001Page5of13 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EUTView7 EUTView8 ReferenceNo.:WTX25X08229926W001Page6of13 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EUTView9

ReferenceNo.:WTX25X08229926W001Page1of13 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn ANNEX EXHIBIT1-PRODUCTLABELING ProposedFCCIDLabelFormat FCCID:2BRWF-CQ-HI201 Thisdevicecomplieswithpart15oftheFCCRules. Operationissubjecttothefollowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)Thisdevicemustacceptanyinterferencereceived, includinginterferencethatmaycauseundesiredoperation. Specifications:Thelabelshallbesecurelyaffixedtoapermanentlyattachedpartofthedevice,inalocation whereitisvisibleoreasilyaccessibletotheuser,andshallnotbereadilydetachable.Thelabelshallbe sufficientlydurabletoremainfullylegibleandintactonthedeviceinallnormalconditionsofusethroughout thedevice’sexpectedlifetime. ProposedLabelLocationonEUT FCCIDLabel Location

1.RFExposureRequirements 1.1GeneralInformation ClientInformation Applicant:ShenzhenShiKangQiErKeJiYouXianGongSi Addressofapplicant: 3/F,BuildingB,WestGate,No.18,Jiuwei1stRoad,JiuweiCommunity, HangchengStreet,Bao'anDistrict,Shenzhen,China Manufacturer:ShenzhenShiKangQiErKeJiYouXianGongSi Addressofmanufacturer: 3/F,BuildingB,WestGate,No.18,Jiuwei1stRoad,JiuweiCommunity, HangchengStreet,Bao'anDistrict,Shenzhen,China GeneralDescriptionofEUT: ProductName:WirelessHeadphones TradeName/ ModelNo.:CQ-HI201 AddingModel(s): CQ-HI202,CQ-HI203,CQ-HI101,CQ-HO301,CQ-HO302, CQ-HO303,CQ-HO304,CQ-HO305,CQ-HO401,CQ-HO402, CQ-201H,CQ-202H,CQ-203H,CQ-101H,CQ-301H,CQ-302H, CQ-303H,CQ-304H,CQ-305H,CQ-401H,CQ-402H RatedVoltage: DC5V1A Battery:3.7V BatteryCapacity:/ AdapterModel: Model:PS06C050K1000UU Input:AC100-240V50/60Hz0.25A Output:DC5V1000mA FCCID:2BRWF-CQ-HI201 EquipmentType:Mobiledevice TechnicalCharacteristicsofEUT: FrequencyRange:2402-2480MHz RFOutputPower:14.63dBm(Conducted) Modulation:GFSK,π/4DQPSK,8DPSK QuantityofChannels:79 ChannelSeparation:1MHz TypeofAntenna:Coppertubeantenna AntennaGain:4.16dBi 1.2RFExposureExemption Accordingto§1.1307(b)(3)andKDB447498D04InterimGeneralRFExposureGuidancev01,system operatingundertheprovisionsofthissectionshallbeoperatinginamannerthatthepublicisnotexposedto radiofrequencyenergylevelinexcesslimitformaximumpermissibleexposure. OptionA:FCCRulePart1.1307(b)(3)(i)(A):Theavailablemaximumtime-averagedpowerisnomorethan 1mW,regardlessofseparationdistance. OptionB:FCCRulePart1.1307(b)(3)(i)(B):Theavailablemaximumtime-averagedpoweroreffective radiatedpower(ERP),whicheverisgreater,islessthanorequaltothethresholdP th (mW)describedinthe followingformula.P th isgivenby: OptionC:FCCRulePart1.1307(b)(3)(i)(C):Theminimumseparationdistance(Rinmeters)fromthebodyof anearbypersonforthefrequency(finMHz)atwhichthesourceoperates,theERP(watts)isnomorethanthe calculatedvalueprescribedforthatfrequency.Rmustbeatleastλ/2π,whereλisthefree-spaceoperating wavelengthinmeters. SingleRFSourcesSubjecttoRoutineEnvironmentalEvaluation RFSourcefrequency(MHz)ThresholdERP(watts) 0.3-1.341,920R 2 1.34-303,450R 2 /f 2 30-3003.83R 2 300-1,5000.0128R 2 f 1,500-100,00019.2R 2 ForMultipleRFsources:FCCRulePart1.1307(b)(3)(ii): (A)Theavailablemaximumtime-averagedpowerofeachsourceisnomorethan1mWandthereisa separationdistanceoftwocentimetersbetweenanyportionofaradiatingstructureoperatingandthe nearestportionofanyotherradiatingstructureinthesamedevice,exceptifthesumofmultiplesourcesis lessthan1mWduringthetime-averagingperiod,inwhichcasetheymaybetreatedasasinglesource (separationisnotrequired). (B)InthecaseoffixedRFsourcesoperatinginthesametime-averagingperiod,orofmultiplemobileor portableRFsourceswithinadeviceoperatinginthesametimeaveragingperiod,ifthesumofthe fractionalcontributionstotheapplicablethresholdsislessthanorequalto1asindicatedinthefollowing equation. 1.3CalculatedResult Radio Access Technology Prediction Frequency Output Power Antenna Gain Duty Cycle Tune-Up Time-AveragedPower ERP (MHz)(dBm)(dBi)(%)(dBm)(dBm) SRD240214.634.16100 15.0017.01 Frequency Option Min.DistanceMax.PowerExposureLimit Ratio Result (MHz)(cm)(dBm)(mW)(mW)Pass/Fail 2402C20.0017.0150.23768.000.07Pass Note:1.Time-AveragedPower=OutputPower*DutyCycle;ERP=Time-AveragedPower+Antenna gain-2.15dB 2.OptionA,BandCrefersasclause1.2. 3.ForoptionB,Max(time-averagedpower,effectiveradiatedpower(ERP))convertstoMax.Power.For optionC,ERPconvertstoMax.Power; 4.ForoptionB,P th (mW)convertstoExposureLimit(mW);ForoptionC,ERP(W)convertstoExposure Limit(mW). 5.Ratio=Tune-UpERP(mW)/ExposureLimit(mW) ModeforSimultaneousMulti-bandTransmission: RadioAccess Technology Ratio1Ratio2 Simultaneous Ratio Limit Result Pass/Fail ------------ Result:Pass

ShenzhenHeyixunTechnologyCo.,LTD address：1903-1905,Building2,JiufangSquare,TiezaiRoad,GongleCommunity,XixiangStreet,Bao'an District,Shenzhen 1 SPECIFICATIONFORAPPROVAL customerName ShenZhenHeYixunTechnologyCo.,Ltd Customer projectName CQ-HI201 Heyixunproject Name CQ-HI201 AntennatypeCoppertubeantenna HeyixunP/N HYX0122-CQ-HI201-V1 Band 2400-2500MHz version A0 DesignerInformation RFEngineer XuLiang EEEngineer FengXiaoheng MEEngineer RengYinan HeyixunApprovalcustomerApproval prepared checkedBYApprovalBYcheckedBYApprovalBY signature XiaoJingxian Date 2025-12-18 changeLog version changeDescriptionpersonincharge ApprovalBY Date ShenzhenHeyixunTechnologyCo.,LTD address：1903-1905,Building2,JiufangSquare,TiezaiRoad,GongleCommunity,XixiangStreet,Bao'an District,Shenzhen 2 catalogue No. Item PageNo. 1 DrawingorProductImage 3-5 2 DimensionsTestReport 6 3 RFPerformanceTestReport 7-11 4 ReliabilityTestReport 12 5 PACKINGCRITERION 13 6 Environmentalrequirements 14 ShenzhenHeyixunTechnologyCo.,LTD address：1903-1905,Building2,JiufangSquare,TiezaiRoad,GongleCommunity,XixiangStreet,Bao'an District,Shenzhen 3 DrawingorProductImage ShenzhenHeyixunTechnologyCo.,LTD address：1903-1905,Building2,JiufangSquare,TiezaiRoad,GongleCommunity,XixiangStreet,Bao'an District,Shenzhen 4 ShenzhenHeyixunTechnologyCo.,LTD address：1903-1905,Building2,JiufangSquare,TiezaiRoad,GongleCommunity,XixiangStreet,Bao'an District,Shenzhen 5 sampleDimensionsTestReport ShenzhenHeyixunTechnologyCo.,LTD address：1903-1905,Building2,JiufangSquare,TiezaiRoad,GongleCommunity,XixiangStreet,Bao'an District,Shenzhen 6 customerName HeYixun customerP/N HeyixunP/N HYX0122-CQ-HI201- V1 TestDate 2025-12-18 sampleQty. 3 Inspector XiaoJingxian DimensionNO. standardsample1sample2sample3pass/NG ①length 121±3mm121.5mm120.8mm121.9mm ②Diameter 4.4±0.3mm4.7mm4.5mm4.6mm ③Lengthof coppertube 23±0.3mm23.2mm23.1mm22.9mm Conclusion PASS Inspector&Date XiaoJingxian 2025-12-18 Approval&Date RFPerformanceTestReport ShenzhenHeyixunTechnologyCo.,LTD address：1903-1905,Building2,JiufangSquare,TiezaiRoad,GongleCommunity,XixiangStreet,Bao'an District,Shenzhen 7 customerName HeYixun project Name CQ-HI201 HeyixunP/N HYX0122-CQ-HI201- V1 Band 2400-2500MHZ TestDate 2025-12-18 Inspector XiaoJingxian AntennaTestEquipmentIntroduction TestofantennainputcharacteristicsusingAgilentE5071candAgilent5071cvectornetworkanalyzer; TheradiationpatternoftheantennaaretestedusingtheETSstarlab3DnearfieldAnechoicChamber, andtheinstrumentisusedtoagilent8960E5515andAgilentE4438C.Thetestcoordinatesofthedarkroom areasfollows: ShenzhenHeyixunTechnologyCo.,LTD address：1903-1905,Building2,JiufangSquare,TiezaiRoad,GongleCommunity,XixiangStreet,Bao'an District,Shenzhen 8 ShenzhenHeyixunTechnologyCo.,LTD address：1903-1905,Building2,JiufangSquare,TiezaiRoad,GongleCommunity,XixiangStreet,Bao'an District,Shenzhen 9 ShenzhenHeyixunTechnologyCo.,LTD address：1903-1905,Building2,JiufangSquare,TiezaiRoad,GongleCommunity,XixiangStreet,Bao'an District,Shenzhen 10 Rel iabilityTestReport customer Name HeYixun customer P/N HeyixunP/N HYX0122-CQ-HI201-V1 TestDate 2025-12-18 sample Qty. 3 Inspector XiaoJingxian TestItem Requireme testing equipment sample1 sample2sample3 PASS/NG High temperature storage Thetestwasperformed after24hoursof exposureat+85°Cand 2hoursofrecovery Constant temperature andhumidity chamber OKOKOK Pass Cryogenic storage Thetestwasperformed after24hoursof exposureat-40°Cand 2hoursofrecovery Constant temperature andhumidity chamber OKOKOK Pass High temperature operation Operatesat+60°C for24hours Constant temperature andhumidity chamber OKOKOK Pass Operatesat low temperatures Itworksonpowerfor 24Hat-20°C Constant temperature andhumidity chamber OKOKOK Pass Saltspray test (5Shi0.5)*Sodiumchloride, pHvalueis6.5~7.2,andthe temperatureofthe experimentalchamberis(35 ±2)°C ☑24H□48H Saltspray testing machine OKOKOK Pass Connector riveting pull-out force 1.13Wiresize≥10N 0.81Wiresize≥8N RG174≥60N RG178≥50N Push-pull forcegauge //// Conclusion Pass Inspector& Date XiaoJingxian2025-12-18 Approval&D ate ShenzhenHeyixunTechnologyCo.,LTD address：1903-1905,Building2,JiufangSquare,TiezaiRoad,GongleCommunity,XixiangStreet,Bao'an District,Shenzhen 11 PACKINGCRITERION 1、 Individualproducts(Subjecttotheactualpackaging) 2、BigPEbagpacking(fullsheet/single90pcs)(Subjecttothe actualpackaging) 3、Sealed,theouterboxisaffixedwithourproductionlabelandROHSlabel. (Subjecttotheactualpackaging) ShenzhenHeyixunTechnologyCo.,LTD address：1903-1905,Building2,JiufangSquare,TiezaiRoad,GongleCommunity,XixiangStreet,Bao'an District,Shenzhen 12 Environmentalrequirements MSDS(MaterialSafetyData Sheet) offerNotavailableN/A COC(Environmental ProtectionAgreement) offerNotavailableN/A Technicalstandardsfor environmentallyfriendly hazardoussubstances offerNotavailableN/A Specificenvironmental requirements ROHS2.0COMPLIANTROHS2.0COMPLIANT Halogen-free MeetsCalifornia65

WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 1 of 64 TESTREPORT ReferenceNo.......................:WTX25X08229926W001 FCCID....................................:2BRWF-CQ-HI201 Applicant...............................:ShenzhenShiKangQiErKeJiYouXianGongSi Address.................................: 3/F,BuildingB,WestGate,No.18,Jiuwei1stRoad,JiuweiCommunity, HangchengStreet,Bao'anDistrict,Shenzhen,China Manufacturer........................:ThesameasApplicant Address.................................:ThesameasApplicant ProductName......................:WirelessHeadphones ModelNo... ............................: CQ-HI201 Standards..............................:FCCPart15.247 DateofReceiptsample.....:2025-08-27 DateofTest ...........................: 2025-11-06to2025-11-12 DateofIssue........................:2025-12-15 TestReportFormNo. ......... : WTX_Part15_247W TestResult ............................: Pass Remarks: Theresultsshowninthistestreportreferonlytothesample(s)tested,thistestreportcannotbe reproduced,exceptinfull,withoutpriorwrittenpermissionofthecompany.Thereportwouldbeinvalidwithout specificstampoftestinstituteandthesignaturesofapprover. PreparedBy: WaltekTestingGroup(Shenzhen)Co.,Ltd. Address:1/F.,Room101,Building1,HongweiIndustrialPark,Liuxian2ndRoad, Block70Bao'anDistrict,Shenzhen,Guangdong,China Tel.:+86-755-33663308Fax.:+86-755-33663309Email:[email protected] Testedby:Approvedby: TrisLi/ProjectEngineerJasonSu/Manager ReferenceNo.:WTX25X08229926W001 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 2 of 64 TABLEOFCONTENTS 1.GENERALINFORMATION.....................................................................................................................................5 1.1PRODUCTDESCRIPTIONFOREQUIPMENTUNDERTEST(EUT)........................................................................5 1.2TESTSTANDARDS.................................................................................................................................................6 1.3TESTMETHODOLOGY...........................................................................................................................................6 1.4TESTFACILITY.......................................................................................................................................................6 1.5EUTSETUPANDTESTMODE..............................................................................................................................7 1.6MEASUREMENTUNCERTAINTY.............................................................................................................................8 1.7TESTEQUIPMENTLISTANDDETAILS..................................................................................................................9 2.SUMMARYOFTESTRESULTS.........................................................................................................................13 3.ANTENNAREQUIREMENT.................................................................................................................................14 3.1STANDARDAPPLICABLE......................................................................................................................................14 3.2EVALUATIONINFORMATION................................................................................................................................14 4.FREQUENCYHOPPINGSYSTEMREQUIREMENTS....................................................................................15 4.1STANDARDAPPLICABLE......................................................................................................................................15 4.2FREQUENCYHOPPINGSYSTEM.........................................................................................................................15 4.3EUTPSEUDORANDOMFREQUENCYHOPPINGSEQUENCE..............................................................................16 5.QUANTITYOFHOPPINGCHANNELSANDCHANNELSEPARATION....................................................17 5.1STANDARDAPPLICABLE......................................................................................................................................17 5.2TESTSETUPBLOCKDIAGRAM...........................................................................................................................17 5.3TESTPROCEDURE..............................................................................................................................................17 5.4SUMMARYOFTESTRESULTS/PLOTS................................................................................................................18 6.DWELLTIMEOFHOPPINGCHANNEL............................................................................................................19 6.1STANDARDAPPLICABLE......................................................................................................................................19 6.2TESTSETUPBLOCKDIAGRAM...........................................................................................................................19 6.3TESTPROCEDURE..............................................................................................................................................19 6.4SUMMARYOFTESTRESULTS/PLOTS................................................................................................................20 7.20DBBANDWIDTH................................................................................................................................................21 7.1STANDARDAPPLICABLE......................................................................................................................................21 7.2TESTSETUPBLOCKDIAGRAM...........................................................................................................................21 7.3TESTPROCEDURE...............................................................................…

Text truncated - open the document above for the full version.