2BL27-AD-01PORTABLE WIRELESS SPEAKER

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.

1/1 USA MEIHUA TRADING INC LETTER OF ATTESTATION Date: 11/26/2024 Applicant’s Name :Weiye XianUS Agent’s Name:Harley Quinn Title:bossTitle: Manager Signatur TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA MEIHUA TRADING INC for Service of Process: Company Name: USA MEIHUA TRADING INC FRN: 0033406166 Contact Name: Harley Quinn Address: 5379 Pine Valley Ct Boulder CO 80301 United States Telephone No: 1-312-363-9424 Email:[email protected] Applicant: Company name:Shenzhen shi yuan technology Co., LTD Product Description:Portable Wireless Speaker Grantee code:2BL27 FCC ID:2BL27-AD-01 FRN:0036239192 Contact Name:Weiye Xian Email:[email protected] Address:403,Fengsheng Building,No.81,Zone 5,Shangliao Community,Xinqiao Street,Baoan District,Shenzhen,China [Shenzhen shi yuan technology Co., LTD] certifies that, as of the date of this filing of the application with the TCB, [USA MEIHUA TRADING INC] is our designated US agent for service of process for the above referenced FCC ID. [Shenzhen shi yuan technology Co., LTD] 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 equipment. [USA MEIHUA TRADING INC] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The USA MEIHUA TRADING INC for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. This Agreement is valid for permanment. eSignature

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communications 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 2BL27-AD-01 AD-01 We, Applicant Company Name: Shenzhen shi yuan technology Co., LTD Address: 403, Fengsheng Building, No. 81, Zone 5, Shangliao Community, Xinqiao Street, Baoan District, Shenzhen, China Phone: +86-17763601458 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. This includes the cybersecurity and anti-virus software produced or provided by Kaspersky Lab, Inc. We 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, 2024-11-26 Signature Date Printed Name of Signee / Title: Weiye Xian / boss Company: Shenzhen shi yuan technology Co., LTD Address: 403, Fengsheng Building, No. 81, Zone 5, Shangliao Community, Xinqiao Street, Baoan District, Shenzhen, China Phone: +86-17763601458 Fax: N/A Email: [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 2BL27-AD-01 AD-01 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 Parts Lists • the Tune Up Information 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, 2024-11-26 Signature Date Printed Name of Signee / Title: Weiye Xian / boss Company: Shenzhen shi yuan technology Co., LTD Address: 403, Fengsheng Building, No. 81, Zone 5, Shangliao Community, Xinqiao Street, Baoan District, Shenzhen, China Phone: +86-17763601458 Fax: N/A Email: [email protected]

ReportNo.:CISRR24110200701 Page 40 of 47 7.EXTERNALANDINTERNALPHOTOS 7.1.ExternalPhotos ReportNo.:CISRR24110200701 Page 41 of 47 ReportNo.:CISRR24110200701 Page 42 of 47 ReportNo.:CISRR24110200701 Page 43 of 47

FCCID:2BL27-AD-01 Label FCCID:2BL27-AD-01 Size:10mm*10mm LabelLocation

ReportNo.:CISRR24110200701 Page 44 of 47 7.2.InternalPhotos ReportNo.:CISRR24110200701 Page 45 of 47 ReportNo.:CISRR24110200701 Page 46 of 47 ReportNo.:CISRR24110200701 Page 47 of 47 ------Endofthereport-----

RFExposureevaluation FCCID2BL27-AD-01 ProductNamePORTAABLEWIRELESSSPEAKER ModelNo.AD-01 ListedModel(s)-- ExposurecategoryGeneralpopulation/uncontrolledenvironment EUTTypeProductionUnit DeviceTypePortableDevice 1.Reference ANSIC95.1–1999:IEEEStandardforSafetyLevelswithRespecttoHumanExposureto RadioFrequencyElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortable DevicesRFExposureProceduresandEquipmentAuthorizationPolicies. FCCCFR47parBMK24041.1310: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≤50mm andfortransmissionfrequenciesbetween100MHzand6GHz.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.ConductedPeakOutputPower ModulationPacketTypeChannel PeakOutput Power (dBm) PeakOutput Power (mW) GFSKDH5 02.131.63 392.481.77 782.891.95 π/4DQPSK2-DH5 02.971.98 393.192.09 783.652.32 8DPSK3-DH5 03.182.08 393.582.28 784.042.54 ModulationPacketTypeChannel PeakOutput Power (dBm) PeakOutput Power (mW) GFSK BLE1M 01.881.54 192.251.68 392.661.85 BLE2M 01.921.56 192.301.7 392.801.91 4.ManufacturingTolerance DH5 ChannelChannel0Channel39Channel78 Target(dBm)222 Tolerance±(dB)1.01.01.0 2DH5 ChannelChannel0Channel39Channel78 Target(dBm)233 Tolerance±(dB)1.01.01.0 3DH5 ChannelChannel0Channel39Channel78 Target(dBm)334 Tolerance±(dB)1.01.01.0 BLE1M ChannelChannel0Channel19Channel39 Target(dBm)122 Tolerance±(dB)1.01.01.0 BLE2M ChannelChannel0Channel19Channel39 Target(dBm)122 Tolerance±(dB)1.01.01.0 5.EvaluationResult Band/Modef(GHz) Antenna Distance (mm) RFoutputpower SARTest Exclusion Threshold SARTest Exclusion dBmmW EDR2.48055 3.16 0.9960<3.0Yes BLE2.48053 2 0.6284<3.0Yes Remark: 1.Outputpowerincludingtuneuptolerance; 2.Whentheminimumtestseparationdistanceis<5mm,adistanceof5mmaccordingtof)in section4.1isappliedtodetermineSARtestexclusion. 6.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolled RFExposureandSARExclusionThresholdperKDB447498D01V06. ------Endofthereport------

Inverted F Antenna Specification Summary CEPS TNA METI TNA G4.2 emaN ledoM lacitreV latnoziroH 2400MHz 2500MH2450MHzz2400MHz 2500MH2450MHzz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 Bd85.0- niaG .XAM lacitreV dna latnoziroH noitaziraloP Azimuth Beam Pattern Omni-directional mhO 05 ecnadepmI mm02.83 htgneL annetnA Manufacture ZHUHAIJIELITECHNOLOGYCO.,LTD Antenna Photo & Length (mm) No.333, Kexing Road, Xiangzhou District, Zhuhai City, Guangdong Province Address: Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

ReportNo.:CISRR24090301002 —1— Appendix ReportNo.: CISRR24102111702 FCCID: 2BL27-AD-01 ProductName: PORTAABLEWIRELESSSPEAKER ModelNo.:AD-01 TestEngineer:LucasHuang Supervisedby:RoryHuang ReportNo.:CISRR24090301002 —2— 1)DutyCycle TestResult ModeChannelOnTime(ms)Period(ms)DutyCycle(%) DutyCycle (linear) DutyCycle Factor(dB) 1/T BLE1M 02.1262.49985.100.85100.70070.4704 192.1272.50085.100.85100.70070.4701 392.1262.49985.100.85100.70070.4704 BLE2M 01.0742.49943.000.43003.66530.9311 191.0742.49943.000.43003.66530.9311 391.0752.50043.020.43023.66330.9302 TestGraphs BLE1M_Channel0 ReportNo.:CISRR24090301002 —3— BLE1M_Channel19 BLE1M_Channel39 ReportNo.:CISRR24090301002 —4— BLE2M_Channel0 BLE2M_Channel19 ReportNo.:CISRR24090301002 —5— BLE2M_Channel39 ReportNo.:CISRR24090301002 —6— 2)PowerSpectralDensity TestResult ModeChannelPSD(dBm/3kHz)Limit(dBm/3kHz)Result BLE1M0-14.579≤8PASS BLE1M19-14.391≤8PASS BLE1M39-13.741≤8PASS BLE2M0-18.770≤8PASS BLE2M19-17.623≤8PASS BLE2M39-17.973≤8PASS TestGraphs BLE1M_Channel0BLE2M_Channel0 BLE1M_Channel19BLE2M_Channel19 ReportNo.:CISRR24090301002 —7— BLE1M_Channel39BLE2M_Channel39 ReportNo.:CISRR24090301002 —8— 3)ConductedOutputPower TestResult ModeChannel PeakOutputPower (dBm) PeakOutputPower (mW) Limit (dBm) Result BLE1M 01.881.54≤30PASS 192.251.68≤30PASS 392.661.85≤30PASS BLE2M 01.921.56≤30PASS 192.301.7≤30PASS 392.801.91≤30PASS TestGraphs PeakOutputPower BLE1M_Channel0 PeakOutputPower BLE1M_Channel19 PeakOutputPower BLE1M_Channel39 PeakOutputPower BLE2M_Channel0 ReportNo.:CISRR24090301002 —9— PeakOutputPower BLE2M_Channel19 PeakOutputPower BLE2M_Channel39 ReportNo.:CISRR24090301002 —10— 4)99%Bandwidth TestResult ModeChannelCenterFrequency(MHz)99%BW(MHz) BLE1M024021.1230 BLE1M1924401.1730 BLE1M3924801.1890 BLE2M024022.0830 BLE2M1924402.0980 BLE2M3924802.1040 TestGraphs BLE1M_Channel0BLE2M_Channel0 BLE1M_Channel19BLE2M_Channel19 ReportNo.:CISRR24090301002 —11— BLE1M_Channel39BLE2M_Channel39 ReportNo.:CISRR24090301002 —12— 5)6dBBandwidth TestResult ModeChannel CenterFrequency (MHz) 6dBBandwidth (MHz) Limit (MHz) Result BLE1M 024020.7300 ≥0.5 PASS 1924400.7200PASS 3924800.7400PASS BLE2M 024021.160PASS 1924401.160PASS 3924801.170PASS TestGraphs BLE1M_Channel0BLE2M_Channel0 BLE1M_Channel19BLE2M_Channel19 ReportNo.:CISRR24090301002 —13— BLE1M_Channel39BLE2M_Channel39 ReportNo.:CISRR24090301002 —14— 6)ConductedOutOfBandEmission TestResult ModeChannel OOBEmission Frequency (MHz) OOBEmission Level (dBm) Limit (dBm) OverLimit (dB) Result BLE1M 0 2400.00-47.625-18.39-29.235PASS 4803.85-40.893-18.39-22.503PASS 194880.42-40.069-18.04-22.029PASS 39 2483.50-49.346-17.61-31.736PASS 4960.33-40.120-17.61-22.510PASS BLE2M 0 2400.00-30.740-18.93-11.810PASS 4803.85-42.259-18.93-23.329PASS 194878.76-40.023-18.47-21.553PASS 39 2483.50-49.268-17.99-31.278PASS 4958.66-40.650-17.99-22.660PASS TestGraphs In-BandReferenceLevel BLE1M_Channel0 In-BandReferenceLevel BLE2M_Channel0 OutOfBandEmission BLE1M_Channel0 OutOfBandEmission BLE2M_Channel0 ReportNo.:CISRR24090301002 —15— 30.0MHz-25000.0MHz BLE1M_Channel0 30.0MHz-25000.0MHz BLE2M_Channel0 In-BandReferenceLevel BLE1M_Channel19 In-BandReferenceLevel BLE2M_Channel19 30.0MHz-25000.0MHz BLE1M_Channel19 30.0MHz-25000.0MHz BLE2M_Channel19 ReportNo.:CISRR24090301002 —16— In-BandReferenceLevel BLE1M_Channel39 In-BandReferenceLevel BLE2M_Channel39 OutOfBandEmission BLE1M_Channel39 OutOfBandEmission BLE2M_Channel39 30.0MHz-25000.0MHz BLE1M_Channel39 30.0MHz-25000.0MHz BLE2M_Channel39

ReportNo.:CISRR24110200702 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of43 TESTREPORT ReportNo.CISRR24110200702 ProjectNo.CISR241102007 FCCID2BL27-AD-01 ApplicantShenzhenshiyuantechnologyCo.,LTD Address 403,FengshengBuilding,No.81,Zone5,ShangliaoCommunity,Xinqiao Street,BaoanDistrict,Shenzhen,China ManufacturerShenzhenshiyuantechnologyCo.,LTD Address 403,FengshengBuilding,No.81,Zone5,ShangliaoCommunity,Xinqiao Street,BaoanDistrict,Shenzhen,China ProductNamePORTABLEWIRELESSSPEAKER TradeMarkN/A Model/TypereferenceAD-01 ListedModel(s)N/A Standard 47CFRPart15.247 TestdateNovember4,2024toNovember9,2024 IssuedateNovember10,2024 TestresultComplied Preparedby:RoryHuangApprovedby:GenryLong ReportNo.:CISRR24110200702 Page 2 of 43 Contents 1.REPORTVERSION..........................................................................................................................................3 2.TESTDESCRIPTION.......................................................................................................................................4 3.SUMMARY........................................................................................................................................................5 3.1.ProductDescription*..................................................................................................................................5 3.2.RadioSpecificationDescription*..............................................................................................................5 3.3.ModificationofEUT.....................................................................................................................................6 3.4.Deviationfromstandards...........................................................................................................................6 3.5.TestingSite...................................................................................................................................................6 4.TESTCONFIGURATION.................................................................................................................................7 4.1.Testfrequencylist.......................................................................................................................................7 4.2.Descriptionsoftestmode...........................................................................................................................7 4.3.Supportunitusedintestconfiguration....................................................................................................7 4.4.Testsampleinformation.............................................................................................................................7 4.5.Environmentalconditions...........................................................................................................................7 4.6.EquipmentUsedduringtheTest................................................................................................................8 5.TESTRESULTS.............................................................................................................................................10 5.1.EvaluationResults(Evaluation)...............................................................................................................10 5.1.1.AntennaRequirement............................................................................................................................10 5.2.RadioSpectrumMatterTestResults(RF)...............................................................................................11 5.2.1.ConductedEmissionatACpowerline.................................................................................................11 5.2.2.OccupiedBandwidth..............................................................................................................................14 5.2.3.MaximumConductedOutputPower.....................................................................................................15 5.2.4.PowerSpectralDensity..........................................................................................................................16 5.2.5.Conductedbandedgeandspuriousemission...................................................................................17 5.2.6.Radiatedbandedgeemission...............................................................................................................18 RadiatedSpuriousEmission...........................................................................................................................24 6.TESTSETUPPHOTOS..................................................................................................................................34 7.EXTERNALANDINTERNALPHOTOS........................................................................................................36 7.1.ExternalPhotos.........................................................................................................................................36 7.2.InternalPhotos...........................................................................................................................................40 ReportNo.:CISRR24110200702 Page 3 of 43 1.REPORTVERSION VersionNo.IssuedateDescription 00November10,2024Original ReportNo.:CISRR24110200702 Page 4 of 43 2.TESTDESCRIPTION No.TestItemStandardRequirementResult 1AntennaRequirement47CFR15.203Pass 2ConductedEmissionatACpowerline47CFR15.207(a)Pass 3OccupiedBandwidth47CFR15.247(a)(2)Pass 4MaximumConductedOutputPower47CFR15.247(b)(3)Pass 5PowerSpectralDensity47CFR15.247(e)Pass 6 Conductedbandedgeandspurious emission 47CFR15.247(d),15.209, 15.205 Pass 7Radiatedbandedgeemission 47CFR15.247(d),15.209, 15.205 Pass 8 RadiatedSpuriousEmission(below 1GHz) 47CFR15.247(d),15.209, 15.205 Pass 9 RadiatedSpuriousEmission…

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ReportNo.:CISRR24110200701 Page 39 of 48 6.TESTSETUPPHOTOS RadiatedSpuriousEmission(Above1GHz) RadiatedSpuriousEmission(below1GHz) ReportNo.:CISRR24110200701 Page 40 of 48 ConductedEmissionatACpowerline