2BU8N-HMB1Happy Music Box

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.

LocalRepresentativeLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(7),oftheCommission’sRules(47C.F.R.)weattestasfollowsfor theproductlistedbelow: FCCIDModelname 2BU8N-HMB1HMB1 Weherebyacknowledgeasfollows: i.bothsigneesconfirmthatthepointofcontactacceptsresponsibilitytoactasaUS- AmericanRepresentativeonbehalfoftheapplicant ii.thepointofcontactprovidesthephysicalU.S.addressandemailaslistedbelow iii.bothpartiesmaintaintherequirementsofthisagreementwithoutexpirationdate US-AmericanPointofContactApplicant/ApprovalHolder SignatureSignature CompanyName:LOBOSIOWAINCShenzhenHuanyaShengshi CultureCommunicationCo.,Ltd. FRN:00364139610038165932 ContactName:HarleyLiZhengHuang Address:4623BittercreekDrColorado SpringsCO80922US Room1907,Unit2,BuildingB5, XingheShengshi,Mintai Community,MinzhiSubdistrict, LonghuaDistrict,Shenzhen, GuangdongProvince,P.R.China Phone:+18188180538N/A Email:[email protected]@cis-cn.net

CoveredEquipmentAttestationLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(5)(i)-(ii)oftheCommission’sRules(47C.F.R.)weattestas followsfortheproductlistedbelow: FCCIDModelname 2BU8N-HMB1HMB1 We, Applicant CompanyName:ShenzhenHuanyaShengshiCulture CommunicationCo.,Ltd. Address:Room1907,Unit2,BuildingB5,Xinghe Shengshi,MintaiCommunity,Minzhi Subdistrict,LonghuaDistrict,Shenzhen, GuangdongProvince,P.R.China Phone:N/A certifythattheequipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules.Thisincludesthecybersecurityandanti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofistsuccessorsandassignees. Wecertifythat,asofthedateofthefilingoftheapplication,theapplicantisnotidentified ontheCoveredListasanentityproducing“covered”equipment. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2025-03-17 SignatureDate PrintedNameofSignee:ZhengHuang Company:ShenzhenHuanyaShengshi CultureCommunicationCo.,Ltd. Phone:+8613129511447 Email:[email protected] Address:Room1907,Unit2,BuildingB5, XingheShengshi,MintaiCommunity,Minzhi Subdistrict,LonghuaDistrict,Shenzhen, GuangdongProvince,P.R.China Fax:N/A

ConfidentialityRequestLetter ForCertificationServiceintheUSA FederalCommunicationCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoParagraphs§0.457and0.459oftheCommission’sRules(47C.F.R.)andSection §552(b)(4)oftheFreedomofInformationAct,werequestconfidentialityforthe documentationofthefollowingproducts: FCCIDModelname 2BU8N-HMB1HMB1 Fortheproductslistedabove,werequestpermanentconfidentialityforallapplicable exhibitsasthereare:  theOperationalDescription  theBlockDiagram theSchematics Theabovelistedexhibitscontaintradesecretsandproprietaryinformationthatcouldbeof benefittoourcompetitors. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2026-03-17 SignatureDate PrintedNameofSignee/Title:ZhengHuang/Manager Company:ShenzhenHuanyaShengshiCultureCommunicationCo., Ltd. Address:Room1907,Unit2,BuildingB5,XingheShengshi,Mintai Community,MinzhiSubdistrict,LonghuaDistrict, Shenzhen,GuangdongProvince,P.R.China Phone:+8613129511447 Fax:-- Email:[email protected]

ReportNo.:CISRR26030904901 Page 48 of 52 9.EXTERNALANDINTERNALPHOTOS 9.1.ExternalPhotos ReportNo.:CISRR26030904901 Page 49 of 52 ReportNo.:CISRR26030904901 Page 50 of 52

Label Size:5mm*5mm FCC ID:2BU8N-HMB1 Label Location

ReportNo.:CISRR26030904901 Page 51 of 52 9.2.InternalPhotos ReportNo.:CISRR26030904901 Page 52 of 52 ------Endofthereport----- ANT

ReportNo.:CISRR26030904902 Reporttemplateversion:CISE-TR-001-A0Page:1of5 TESTREPORT RFExposureEvaluation ReportNo.CISRR26030904902 ProjectNo.CISR260309049 FCCID2BU8N-HMB1 ApplicantShenzhenHuanyaShengshiCultureCommunicationCo.,Ltd. Address Room1907,Unit2,BuildingB5,XingheShengshi,MintaiCommunity, MinzhiSubdistrict,LonghuaDistrict,Shenzhen,GuangdongProvince, P.R.China ManufacturerShenzhenHuanyaShengshiCultureCommunicationCo.,Ltd. Address Room1907,Unit2,BuildingB5,XingheShengshi,MintaiCommunity, MinzhiSubdistrict,LonghuaDistrict,Shenzhen,GuangdongProvince, P.R.China ProductNameHappyMusicBox Trademark- Model/TypereferenceHMB1 ListedModel(s)- Standard 47CFRPart2.1093 DateofsamplereceiptMarch10,2026 TestdateMarch10,2026toMarch14,2026 IssuedateMarch16,2026 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangceTesting TechnologyCo.,Ltd. ReportNo.:CISRR26030904902 Reporttemplateversion:CISE-TR-001-A0Page:2of5 1.APPLICABLESTANDARD 47CFRPart2.1093:Radiofrequencyradiationexposureevaluation:portabledevices ANSIC95.1–3999:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. 47CFRPart1.1307:Actionsthatmayhaveasignificantenvironmentaleffect,forwhichEnvironmental Assessments(EAs)mustbeprepared. 2.REPORTVERSION VersionNo.IssuedateDescription 00March16,2026Original ReportNo.:CISRR26030904902 Reporttemplateversion:CISE-TR-001-A0Page:3of5 3.RADIOSPECIFICATIONDESCRIPTION Bluetooth Supportedtype:BREDRLE-1Mbps LE-2Mbps Note:PleaserefertoRFreportfordetailedtechnicalspecifications 4.SIMULTANEOUSTRANSMISSIONANALYSIS ThedeviceuseasingletransmittermoduleandantennaforBluetooth,cannottransmitsimultaneously. ReportNo.:CISRR26030904902 Reporttemplateversion:CISE-TR-001-A0Page:4of5 5.TESTRESULT 5.1.Standalonetransmission Limit: KDB447498D01v06,Clause4.3.1a) For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-g SARtestexclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]*[√f(GHz)]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation31The resultisroundedtoonedecimalplaceforcomparison Thevalues3.0and7.5arereferredtoasnumericthresholdsinstepb)below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm, andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto4.1f)isappliedtodetermine SARtestexclusion. Result: Passed TestData Radiotype Frequency (GHz) Maximum output power #1 (dBm) Antenna gain #2 (dBi) Maximum EIRP #3 (dBm) Maximum tune-up #4 EIRP(dBm) Minimum distance (mm) Evaluated value LimitResult BLE2.4022.37-2.9-0.530.005.000.31003.00PASS Note #1:ThisvaluecomesfromtheRFtestreport. #2:Thisvalueisdeclaredbytheapplicant. #3:EIRP=Maximumoutputpower+Antennagain. #4:Thisvalueisdeclaredbytheapplicant. ReportNo.:CISRR26030904902 Reporttemplateversion:CISE-TR-001-A0Page:5of5 5.2.Simultaneoustransmission Limit: KDB447498D01v06,Clause4.3.2,47CFRPart1.1307 InthecaseofxedRFsourcesoperatinginthesametime-averagingperiod,orof multiplemobileorportableRFsourceswithinadeviceoperatinginthesametime averagingperiod,ifthesumofthefractionalcontributionstotheapplicablethresholds islessthanorequalto1asindicatedinthefollowingequation. Where a=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(B)ofthissectionforP,includingexistingexempttransmittersandthosebeing added. b=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(C)ofthissectionforThresholdERP,includingexistingexempttransmittersand thosebeingadded. c=numberofexistingfixed,mobile,orportableRFsourceswithknownevaluationforthespeci edminimumdistanceincludingexistingevaluatedtransmitters. P j =theavailablemaximumtime-averagedpowerortheERP,whicheverisgreater,forxed, mobile,orportableRFsourceiatadistancebetween0.5cmand40cm(inclusive). P th,j =theexemptionthresholdpower(P)accordingtoparagraph(b)(3)(i)(B)ofthissectionfor xed,mobile,orportableRFsourcei. ERP j =theERPoffixed,mobile,orportableRFsourcej. ERP th,j =exemptionthresholdERPforfixed,mobile,orportableRFsourcej,atadistanceofat leastλ/2πaccordingtotheapplicableformulaofparagraph(b)(3)(i)(C)ofthissection. Evaluated k =themaximumreportedSARorMPEoffixed,mobile,orportableRFsourcekeither inthedeviceoratthetransmittersitefromanexistingevaluationatthelocationofexposure. ExposureLimit k =eitherthegeneralpopulation/uncontrolledmaximumpermissibleexposure (MPE)orspecicabsorptionrate(SAR)limitforeachxed,mobile,orportableRFsourcek, asapplicablefrom§1.1310ofthischapter. Result:NotApplicable --------EndofReport--------

1 Product specification Quick Reference Antenna model information Antenna TypePCB Frequency 2.44GHz Ant. Port Input Pwr.(dBm)0(Typ.BT class 2 output power) Tot.Rad.Pwr.(dBm)-5.8(Input pwr-loss pwr) Peak EIRP(dBm)-2.9 Directivity(dBi)1(all direction antenna) Efficiency(dB)-5.8(26.03%) Gain(dBi)-2.9(Peak Gain XY-plane) Maximum Power(dBm)-2.9(XY-plane) Minimum Power(dBm)-7.9(XY-plane) Average Power(dBm)-4.5(XY-plane) Max/Min Ratio(dB)5(XY-plane) Max/Avg Ratio(dB)1.6(XY-plane) Min/Avg Ratio(dB)-3.4(XY-plane) Average Gain(dB)-4.5(Avg Gain XY-plane) Antenna module & Size Antenna Gain Gain Table Unit in dB@ 2.44GHz XY-plane XZ-plane YZ-plane Efficiency Peak Avg Peak Avg Peak Avg -4.5 -2.9 -3.7 -6.9 -2.9 -6.1 26.03% Manufacturer:Shenzhen Huanya Shengshi Culture Communication Co., Ltd. Address:Room 1907, Unit 2, Building B5, Xinghe Shengshi, Mintai Community, Minzhi Subdistric t, Longhua District, Shenzhen, Guangdong Province, P.R. China 2 3 3D radiation pattern diagram XY-plane 4 XZ-plane YZ-plane

ReportNo.:CISRR26030904901 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of44 TESTREPORT ReportNo.CISRR26030904901 ProjectNo.CISR260309049 FCCID2BU8N-HMB1 ApplicantShenzhenHuanyaShengshiCultureCommunicationCo.,Ltd. Address Room1907,Unit2,BuildingB5,XingheShengshi,MintaiCommunity, MinzhiSubdistrict,LonghuaDistrict,Shenzhen,GuangdongProvince, P.R.China ManufacturerShenzhenHuanyaShengshiCultureCommunicationCo.,Ltd. Address Room1907,Unit2,BuildingB5,XingheShengshi,MintaiCommunity, MinzhiSubdistrict,LonghuaDistrict,Shenzhen,GuangdongProvince, P.R.China ProductNameHappyMusicBox Trademark- Model/TypereferenceHMB1 ListedModel(s)- Standard 47CFRPart15.247 DateofsamplereceiptMarch10,2026 TestdateMarch10,2026toMarch14,2026 IssuedateMarch16,2026 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu ReportNo.:CISRR26030904901 Page 2 of 44 Contents 1.STANDARDANDAPPLICABLETESTMETHODS........................................................................................3 2.REPORTVERSION..........................................................................................................................................3 3.TESTDESCRIPTION.......................................................................................................................................4 4.SUMMARY........................................................................................................................................................5 4.1.ProductDescription*..................................................................................................................................5 4.2.RadioSpecificationDescription*..............................................................................................................5 4.3.ModificationofEUT.....................................................................................................................................6 4.4.Deviationfromstandards...........................................................................................................................6 4.5.TestingSite...................................................................................................................................................6 5.TESTCONFIGURATION.................................................................................................................................7 5.1.Testfrequencylist.......................................................................................................................................7 5.2.Descriptionsoftestmode...........................................................................................................................7 5.3.Supportunitusedintestconfiguration....................................................................................................7 5.4.Testsampleinformation.............................................................................................................................7 5.5.Environmentalconditions...........................................................................................................................7 5.6.Statementofthemeasurementuncertainty.............................................................................................7 5.7.EquipmentUsedduringtheTest................................................................................................................8 6.TESTRESULTS.............................................................................................................................................10 6.1.EvaluationResults(Evaluation)...............................................................................................................10 6.1.1.AntennaRequirement............................................................................................................................10 6.2.RadioSpectrumMatterTestResults(RF)...............................................................................................11 6.2.1.ConductedEmissionatACpowerline.................................................................................................11 6.2.2.6dBBandwidth........................................................................................................................................14 6.2.3.MaximumConductedOutputPower.....................................................................................................15 6.2.4.PowerSpectralDensity..........................................................................................................................16 6.2.5.Conductedbandedgeandspuriousemission...................................................................................17 6.2.6.Radiatedbandedgeemission...............................................................................................................18 6.2.7.RadiatedSpuriousEmission(below1GHz).........................................................................................24 6.2.8.RadiatedSpuriousEmission(Above1GHz)........................................................................................28 7.APPENDIXREPORT......................................................................................................................................36 7.1.6dBBandwidth...........................................................................................................................................36 7.2.ConductedOutputPower.........................................................................................................................38 7.3.PowerSpectralDensity.............................................................................................................................40 7.4.DutyCycle..................................................................................................................................................41…

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ReportNo.:CISRR26030904901 Page 46 of 52 8.TESTSETUPPHOTOS ConductedEmissionatACpowerline Radiatedbandedgeemission RadiatedSpuriousEmission(Above1GHz) ReportNo.:CISRR26030904901 Page 47 of 52 RadiatedSpuriousEmission(below1GHz)