2BDJL-CH-11Bluetooth locator

FCC Caution: 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. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Covered Equipment Identification Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows: We, applicant Company Name: Shenzhen Chiheng Industrial Co., Ltd. Address: 602, Building 4, Zhongpengcheng Industrial Park, Heshuikou Fourth Industrial Zone, Matian Street, Guangming District, Shenzhen, China Phone: +86-13528465084 certify 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. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-12-25 Name / Title: Laibin Zhang / Manager Company: Shenzhen Chiheng Industrial Co., Ltd. Address: 602, Building 4, Zhongpengcheng Industrial Park, Heshuikou Fourth Industrial Zone, Matian Street, Guangming District, Shenzhen, China Phone: +86-13528465084 Fax: N/A E-Mail: [email protected]

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2BDJL-CH-11 CH-11, CH-12 We, applicant Company Name: Shenzhen Chiheng Industrial Co., Ltd. Address: 602, Building 4, Zhongpengcheng Industrial Park, Heshuikou Fourth Industrial Zone, Matian Street, Guangming District, Shenzhen, China Phone: +86-13528465084 certify 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. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-12-25 Name / Title: Laibin Zhang / Manager Company: Shenzhen Chiheng Industrial Co., Ltd. Address: 602, Building 4, Zhongpengcheng Industrial Park, Heshuikou Fourth Industrial Zone, Matian Street, Guangming District, Shenzhen, China Phone: +86-13528465084 Fax: N/A E-Mail: [email protected]

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products: FCC ID Model name 2BDJL-CH-11 CH-11, CH-12 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-12-25 Name / Title: Laibin Zhang / Manager Company: Shenzhen Chiheng Industrial Co., Ltd. Address: 602, Building 4, Zhongpengcheng Industrial Park, Heshuikou Fourth Industrial Zone, Matian Street, Guangming District, Shenzhen, China Phone: +86-13528465084 Fax: N/A E-Mail: [email protected]

Shenzhen Chiheng Industrial Co., Ltd. 602, Building 4, Zhongpengcheng Industrial Park, Heshuikou Fourth Industrial Zone, Matian Street, Guangming District, Shenzhen, China Date: December 23, 2023 FCC ID: 2BDJL-CH-11 Model Number: CH-11, CH-12 To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, Shenzhen Chiheng Industrial Co., Ltd. hereby declare that our product (Bluetooth locator) Model Number: CH-11, CH-12 board, Schematic, Hardware version, Software version, structure and internal photos are same, named and appearance differently due to marketing purposes. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely, (Signed) Name / Title: Laibin Zhang / Manager Company: Shenzhen Chiheng Industrial Co., Ltd. Address: 602, Building 4, Zhongpengcheng Industrial Park, Heshuikou Fourth Industrial Zone, Matian Street, Guangming District, Shenzhen, China Phone: +86-13528465084 Fax Number: N/A E-Mail: [email protected]

FCCID:2BDJL-CH-11 FCCID:2BDJL-CH-11 FCCID:2BDJL-CH-11 FCCID:2BDJL-CH-11

FCCID：2BDJL-CH-11 Label Size:10mm*5mm FCCID：2BDJL-CH-11 labelpositions

FCCID:2BDJL-CH-11 FCCID:2BDJL-CH-11 ANT

RFExposureevaluation FCCID2BDJL-CH-11 ProductNameBluetoothlocator Model/TypereferenceCH-11 ExposurecategoryGeneralpopulation/uncontrolledenvironment EUTTypeProductionUnit DeviceTypePortable Device 1.Reference ANSIC95.1–1999:IEEEStandardforSafetyLevelswithRespecttoHumanExposureto RadioFrequencyElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortable DevicesRFExposureProceduresandEquipmentAuthorizationPolicies. FCCCFR47part11.1310:Radiofrequencyradiationexposurelimits. FCCCFR47part22.1093:Radiofrequencyradiationexposureevaluation:portabledevices 2.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1Standalone SARtestexclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposure KDBprocedures,standalone1-gheadorbodyand10-gextremitySARevaluationforgeneral populationexposureconditions,bymeasurementornumericalsimulation,isnotrequired whenthecorrespondingSARTestExclusionThresholdcondition,listedbelow,issatisfied. Thesetestexclusionconditionsarebasedonsource-basedtime-averagedmaximum conductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-uptolerance, andtheminimumtestseparationdistancerequiredfortheexposureconditions.22The minimumtestseparationdistanceisdeterminedbythesmallestdistancefromtheantenna andradiatingstructuresoroutersurfaceofthedevice,accordingtothehostformfactor, exposureconditionsandplatformrequirements,toanypartofthebodyorextremityofauser orbystander(see5)ofsection4.1).ToqualifyforSARtestexclusion,thetestseparation distancesappliedmustbefullyexplainedandjustifiedbytheoperatingconfigurationsand exposureconditionsofthetransmitterandapplicablehostplatformrequirements,typicallyin theSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRF exposureKDBprocedures.WhennootherRFexposuretestingorreportingisrequired,a statementofjustificationandcompliancemustbeincludedintheequipmentapproval,inlieuof theSARreport,toqualifyfortheSARtestexclusion.Whenrequired,thedevicespecific conditionsdescribedintheotherpublishedRFexposureKDBproceduresmustbesatisfied beforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTTtwo-way radios,handsets,laptops&tabletsetc.23” [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where: •f(GHz)istheRFchanneltransmitfrequencyinGHz •PoweranddistanceareroundedtothenearestmWandmmbeforecalculation •Theresultisroundedtoonedecimalplaceforcomparison •3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50 mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto5)insection4.1isappliedto determineSARtestexclusion. Whenoneofthefollowingtestexclusionconditionsissatisfiedforallcombinationsof simultaneoustransmissionconfigurations,furtherequipmentapprovalisnotrequiredto incorporatetransmittermodulesinhostdevicesthatoperateinthemixedmobileandportable hostplatformexposureconditions.Thegranteeisresponsiblefordocumentingthisaccording toClassIpermissivechangerequirements.AntennasthatqualifyforstandaloneSARtest exclusionmustapplytheestimatedstandaloneSARtodeterminesimultaneoustransmission testexclusion. a)The[∑of(thehighestmeasuredorestimatedSARforeachstandaloneantenna configuration,adjustedformaximumtune-uptolerance)/1.6W/kg]+[∑ofMPEratios]is≤ 1.0. b)TheSARtopeaklocationseparationratiosofallsimultaneouslytransmittingantennapairs operatinginportabledeviceexposureconditionsareall≤0.04,andthe[∑ofMPEratios]is ≤1.0. 3.ManufacturingTolerance BLE ChannelChannel0Channel19Channel39 Target(dBm)-3.0-3.0-4.0 Tolerance±(dB)1.01.01.0 4.EvaluationResult Band/Modef(GHz) Antenna Distance (mm) RFoutputpower SARTest Exclusion Threshold SARTest Exclusion dBmmW BLE 2.4025-20.630.1956<3.0Yes 2.4405-20.630.1971<3.0Yes 2.4805-30.500.1579<3.0Yes Remark: 1.Outputpowerincludingtuneuptolerance; 2.Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmaccordingtof)in section4.1isappliedtodetermineSARtestexclusion. 5.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolled RFExposureandSARExclusionThresholdperKDB447498v06. ------Endofthereport------

Antennatestreport 1.Specification EUTName CBUAntenna Manufacturer:ShenzhenChihengIndustrialCo., Ltd. AntennaType PCBantenna Dimensions AppendixA 2.TechnicalInformation FrequencyRange MHz~MHz TestFrequency 2400,2410......2500MHz 3. AppendixAAntennaDimension 24 00 2 500 Shenzhen Chiheng Industrial Co., Ltd. 602, Building 4, Zhongpengcheng Industrial Park, Heshuikou Fourth Industrial Zone, Matian Street, Guangming District, Shenzhen, China 4.AppendixCGainandEfficiency 5.AppendixDRadiationPattern

ReportNo.:CISRR23120401001 AppendixA ReportNo.:CISRR23120401001 ProductName:Bluetoothlocator ModelNo.:CH-11 TestEngineer:LucasHuang Supervisedby:RoryHuang ReportNo.:CISRR23120401001 1.DutyCycle 1.1Ant1 1.1.1TestResult Ant1 Mode TX Type Frequency (MHz) T_on (ms) Period (ms) DutyCycle (%) DutyCycle Correction Factor(dB) Max.DC Variation(%) 1/T 1MSISO 24020.3840.60963.052.000.042.60 24400.3820.62261.412.120.012.62 24800.3780.61661.362.120.002.65 ReportNo.:CISRR23120401001 1.1.2TestGraph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV ReportNo.:CISRR23120401001 1M_HCH_2480MHz_Ant1_NTNV ReportNo.:CISRR23120401001 2.26dBBW 2.2.1TestResult Mode TX Type Frequency (MHz) ANT 6dBBandwidth(MHz) Verdict ResultLimit 1MSISO 240210.673>=0.5Pass 244010.679>=0.5Pass 248010.677>=0.5Pass ReportNo.:CISRR23120401001 2.2.2TestGraph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV ReportNo.:CISRR23120401001 1M_HCH_2480MHz_Ant1_NTNV ReportNo.:CISRR23120401001 3.MaximumConductedOutputPower 3.1Power 3.1.1TestResult Mode TX Type Frequency (MHz) MaximumPeakConductedOutputPower(dBm) Verdict ANT1Limit 1MSISO 2402-3.74<=30Pass 2440-4.60<=30Pass 2480-4.12<=30Pass ReportNo.:CISRR23120401001 4.MaximumPowerSpectralDensity 4.1PSD 4.1.1TestResult Mode TX Type Frequency (MHz) MaximumPSD(dBm/3kHz) Verdict ANT1Limit 1MSISO 2402-25.10<=8Pass 2440-25.92<=8Pass 2480-25.48<=8Pass ReportNo.:CISRR23120401001 4.1.2TestGraph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV ReportNo.:CISRR23120401001 1M_HCH_2480MHz_Ant1_NTNV ReportNo.:CISRR23120401001 5.UnwantedEmissionsInNon-restrictedFrequencyBands 5.1Ref 5.1.1TestResult Mode TX Type Frequency (MHz) ANT LevelofReference (dBm) 1MSISO 24021-9.30 24401-10.15 24801-9.66 Note1:RefertoFCCPart15.247(d)andANSIC63.10-2013,thechannelcontainsthemaximumPSDlevelwasusedto establishthereferencelevel. ReportNo.:CISRR23120401001 5.1.2TestGraph 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV ReportNo.:CISRR23120401001 1M_HCH_2480MHz_Ant1_NTNV ReportNo.:CISRR23120401001 5.2CSE 5.2.1TestResult Mode TX Type Frequency (MHz) ANT LevelofReference (dBm) Limit (dBm) Verdict 1MSISO 24021-9.30-29.30Pass 24401-9.30-29.30Pass 24801-9.30-29.30Pass Note1:RefertoFCCPart15.247(d)andANSIC63.10-2013,thechannelcontainsthemaximumPSDlevelwasusedto establishthereferencelevel. ReportNo.:CISRR23120401001 5.2.2TestGraph 1M_LCH_2402MHz_Ant1_NTNV 1M_LCH_2402MHz_Ant1_NTNV ReportNo.:CISRR23120401001 1M_MCH_2440MHz_Ant1_NTNV 1M_HCH_2480MHz_Ant1_NTNV ReportNo.:CISRR23120401001 1M_HCH_2480MHz_Ant1_NTNV

ReportNo.:CISRR23120401001 Page:1of31 TESTREPORT ReportNo.:CISRR23120401001 ProjectNo.CISR231204010 FCCID2BDJL-CH-11 Applicant:ShenzhenChihengIndustrialCo.,Ltd. Address:602,Building4,ZhongpengchengIndustrialPark,HeshuikouFourth IndustrialZone,MatianStreet,GuangmingDistrict,Shenzhen,China ProductName:Bluetoothlocator TradeMark:-- Model/Typereference:CH-11 ListedModel(s):CH-12 Standard:Part15SubpartCSection15.247 Testdate:December04,2023~December15,2023 IssuedateDecember15,2023 Testresult:Complied Preparedby:RoryHuangApprovedby:GenryLong Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. ReportNo.:CISRR23120401001 Page:2of31 Contents 1.REPORTVERSION.........................................................................................................................................3 2.SUMMARYOFTESTRESULT.......................................................................................................................4 3.SUMMARY.....................................................................................................................................................5 3.1.ClientInformation........................................................................................................................................5 3.2.ProductDescription....................................................................................................................................5 3.3.RadioSpecificationDescription................................................................................................................5 3.4.ModificationofEUT.....................................................................................................................................6 3.5.TestingSite...................................................................................................................................................6 4.TESTCONFIGURATION.............................................................................................................................7 4.1.Testfrequencylist.......................................................................................................................................7 4.2.Testmode.....................................................................................................................................................7 4.3.Supportunitusedintestconfigurationandsystem...............................................................................7 4.4.Testsampleinformation.............................................................................................................................7 4.5.Testingenvironmentalcondition...............................................................................................................8 4.6.Statementofthemeasurementuncertainty.............................................................................................8 4.7.EquipmentUsedduringtheTest...............................................................................................................9 5.TESTCONDITIONSANDRESULTS.....................................................................................................10 5.1.AntennaRequirement...............................................................................................................................10 5.2.ACConductedEmission...........................................................................................................................11 5.3.PeakOutputPower....................................................................................................................................12 5.4.6dBBandwidth..........................................................................................................................................13 5.5.99%OccupiedBandwidth.........................................................................................................................14 5.6.Powerspectraldensity..............................................................................................................................15 5.7.ConductedBandedgeandSpuriousEmission.....................................................................................16 5.8.RadiatedBandedgeEmission.................................................................................................................17 5.9.RadiatedSpuriousEmission....................................................................................................................19 6.TESTSETUPPHOTOS............................................................................................................................25 7.EXTERNALANDINTERNALPHOTOS.................................................................................................26 7.1.ExternalPhotos.........................................................................................................................................26 7.2Internalphotos............................................................................................................................................30 ReportNo.:CISRR23120401001 Page:3of31 1.REPORTVERSION VersionNo.IssuedateDescription 00December15,2023Original ReportNo.:CISRR23120401001 Page:4of31 2.SUMMARYOFTESTRESULT Report clause TestItemStandardRequirementResult 5.1AntennaRequirement15.203/15.247(c)PASS 5.2ACConductedEmission15.207PASS 5.3PeakOutputPower15.247(b)(1)PASS 5.46dBBandwidth15.247(a)(2)PASS 5.599%OccupiedBandwidth-PASS *1 5.6Powerspectraldensity15.247(e)PASS 5.7ConductedBandEdgeandSpuriousEmission15.247(d)/15.205PASS 5.8RadiatedBandEdgeEmission15.205/15.209PASS 5.9RadiatedSpuriousEmission15.247(d)/15.205/15.209PASS Note: ‒Themeasurementuncertaintyisnotincludedinthetestresult. ‒*1:Norequirementonstandard,onlyreportthesetestdata. ReportNo.:CISRR23120401001 Page:5of31 3.SUMMARY 3.1.ClientInformation Applicant:Shenzhen…

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FCCID:2BDJL-CH-11