2BL4H-IE-10SHeadphone Amp & Multi-Effects Processor

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. American agent information Company Name: GLOCERTS TECHNOLOGY INC FRN: 0036339737 Contact Name: Huiying Fan Address: 19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507 Telephone No: (626) 588-8039 Email: [email protected] 6.35 mm (1/4") mono input jack for connecting your instrument. Press and hold the button to turn on/off; when powered on, short press to enable Bluetooth, double-click to disable Bluetooth. RGB LED Indicators: Blue blinking: Bluetooth device not connected Blue solid: Bluetooth device connected Red solid: Low battery Red blinking: Charging in progress PS: Bluetooth status has the highest priority, followed by battery display, and preset display has the lowest priority. Press " + " / " - " to adjust the device volume; Press " + " and " - " simultaneously to mute. Press " " / " " to switch presets within a group. Each group has 10 preset tones, with a total of 5 groups. The " " button cycles through preset groups 1–5. When switching groups, the LED blinks for 3 seconds and then displays the current preset. Green → Sky blue → Yellow → Purple → White Type-C USB port for charging, connecting to phones or computers for recording, and firmware updates. 3.5mm (1/8") stereo headphone jack for connecting headphones, speakers, or effects processors. A/D/A Conversion: 24-bit Sampling Rate: 44.1kHz Signal-to-Noise Ratio: 103dB Effect Modules: Supports up to 8 effect modules Specifications Preset Quantity: 50 built-in factory presets Analog Input Connection: Input: 6.35mm (1/4") unbalanced input (TS) jack, impedance 1MΩ Analog Output Connection: Stereo (Headphone) Output: 3.5mm (1/8") TRS jack, impedance 100Ω Digital Connection: USB Port: USB 2.0 Type-C port USB Recording Specifications: Sampling Frequency: 44.1kHz Bit Depth: 16-bit Dimensions & Weight: Dimensions: 84.3mm (L) × 43.7mm (W) × 32.2mm (H) Weight: 64g Power Supply: Power Requirement: USB Type-C, DC 5V Built-in Battery: 1000mAh Operating Frequency: 2402MHz2480MHz Max. RF Power: 1dBm

LocalRepresentativeLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(7),oftheCommission’sRules(47C.F.R.)weattestasfollowsfor theproductlistedbelow: FCCIDModelname 2BL4H-IE-10SiE-10S Weherebyacknowledgeasfollows: i.bothsigneesconfirmthatthepointofcontactacceptsresponsibilitytoactasaUS- AmericanRepresentativeonbehalfoftheapplicant ii.thepointofcontactprovidesthephysicalU.S.addressandemailaslistedbelow iii.bothpartiesmaintaintherequirementsofthisagreementwithoutexpirationdate US-AmericanPointofContactApplicant/ApprovalHolder SignatureSignature CompanyName:GLOCERTSTECHNOLOGYINCGuangdongDKMusicElectronic TechnologyCo.,Ltd. FRN:00363397370036247724 ContactName:HuiyingFanQiangfeiJi Address:19784SUNKISSEDRIDGEDR, RIVERSIDE,CA92507 Unit301,BLDG5,No.16,Jinxing Rd,Hi-TechZone,Zhuhai, Guangdong,China. Phone:(626)588-8039N/A Email:[email protected]@qq.com

CoveredEquipmentAttestationLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(5)(i)-(ii)oftheCommission’sRules(47C.F.R.)weattestasfollows fortheproductlistedbelow: FCCIDModelname 2BL4H-IE-10SiE-10S We, Applicant CompanyName:GuangdongDKMusicElectronicTechnology Co.,Ltd. Address:Unit301,BLDG5,No.16,JinxingRd,Hi-Tech Zone,Zhuhai,Guangdong,China. Phone:N/A certifythattheequipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCC rules.Thisincludesthecybersecurityandanti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofistsuccessorsandassignees. Wecertifythat,asofthedateofthefilingoftheapplication,theapplicantisnotidentifiedon theCoveredListasanentityproducing“covered”equipment. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2026-09-22 SignatureDate PrintedNameofSignee:QiangfeiJi Company:GuangdongDKMusicElectronic TechnologyCo.,Ltd. Phone:N/A Email:[email protected] Address:Unit301,BLDG5,No.16,Jinxing Rd,Hi-TechZone,Zhuhai,Guangdong,China. Fax:N/A

GuangdongDKMusicElectronicTechnologyCo.,Ltd. Date:2026.09.22 FederalCommunicationsCommission EquipmentAuthorizationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Attn:OETDept. FCCID:2BL4H-IE-10S ToWhomItMayConcern: WeherebycertifythatwewillmakedeclarationsofconformityforCalssBPCperipheraldevice. EnsurethattheproductcomplieswiththerequirementsidentifiedinKDB896810and47CFR2.948(b). Sincerely, Signature PrintedNameofSignee/Title:QiangfeiJi/Manager Company:GuangdongDKMusicElectronicTechnologyCo.,Ltd. Address:Unit301,BLDG5,No.16,JinxingRd,Hi-TechZone,Zhuhai, Guangdong,China.

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 2BL4H-IE-10SiE-10S Fortheproductslistedabove,werequestpermanentconfidentialityforallapplicableexhibits asthereare:  theOperationalDescription  theBlockDiagram theSchematics Theabovelistedexhibitscontaintradesecretsandproprietaryinformationthatcouldbeof benefittoourcompetitors. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2026-09-22 SignatureDate PrintedNameofSignee/Title:QiangfeiJi/Manager Company:GuangdongDKMusicElectronicTechnologyCo.,Ltd. Address:Unit301,BLDG5,No.16,JinxingRd,Hi-TechZone,Zhuhai, Guangdong,China. Phone:-- Fax:-- Email:[email protected]

ReportNo.:CISRR26091007301 Page 96 of 100 9.EXTERNALANDINTERNALPHOTOS 9.1.ExternalPhotos ReportNo.:CISRR26091007301 Page 97 of 100

Label Size:10mm*10mm FCC ID:2BL4H-IE-10S Label Location

ReportNo.:CISRR26091007301 Page 98 of 100 9.2.InternalPhotos ReportNo.:CISRR26091007301 Page 99 of 100 ReportNo.:CISRR26091007301 Page 100 of 100 ------Endofthereport----- ANT

ReportNo.:CISRR26091007302 Reporttemplateversion:CISE-TR-001-A0Page:1of5 TESTREPORT RFExposureEvaluation ReportNo.CISRR26091007302 ProjectNo.CISR260910073 FCCID2BL4H-IE-10S ApplicantGuangdongDKMusicElectronicTechnologyCo.,Ltd. Address Unit301,BLDG5,No.16,JinxingRd,Hi-Tech Zone,Zhuhai,Guangdong,China. ManufacturerGuangdongDKMusicElectronicTechnologyCo.,Ltd. Address Unit301,BLDG5,No.16,JinxingRd,Hi-Tech Zone,Zhuhai,Guangdong,China. ProductNameHeadphoneAmp&Multi-EffectsProcessor TrademarkDeKode Model/TypereferenceiE-10S ListedModel(s)- Standard 47CFRPart2.1093 DateofsamplereceiptSeptember10,2026 TestdateSeptember11,2026toSeptember16,2026 IssuedateSeptember17,2026 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangceTesting TechnologyCo.,Ltd. ReportNo.:CISRR26091007302 Reporttemplateversion:CISE-TR-001-A0Page:2of5 1.APPLICABLESTANDARD 47CFRPart2.1093:Radiofrequencyradiationexposureevaluation:portabledevices ANSIC95.1–2019:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. 47CFRPart1.1307:Actionsthatmayhaveasignificantenvironmentaleffect,forwhichEnvironmental Assessments(EAs)mustbeprepared. 2.REPORTVERSION VersionNo.IssuedateDescription 00September17,2026Original ReportNo.:CISRR26091007302 Reporttemplateversion:CISE-TR-001-A0Page:3of5 3.RADIOSPECIFICATIONDESCRIPTION Bluetooth Supportedtype:BREDRLE-1Mbps LE-2Mbps Note:PleaserefertoRFreportfordetailedtechnicalspecifications 4.SIMULTANEOUSTRANSMISSIONANALYSIS ThedeviceuseasingletransmittermoduleandantennaforBluetooth,cannottransmitsimultaneously. ReportNo.:CISRR26091007302 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 Radio type 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 BT2.402-1.512.320.811.005.000.39023.00PASS Note #1:ThisvaluecomesfromtheRFtestreport. #2:Thisvalueisdeclaredbytheapplicant. #3:EIRP=Maximumoutputpower+Antennagain. #4:Thisvalueisdeclaredbytheapplicant. ReportNo.:CISRR26091007302 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--------

258F25x11L31CM1Antenna FEATURES&BENEFITS WeldingRG1.13cable,Ipexconnector,3Mstickerforeasyinstallation. Mountingto:non-conductivesurface Installationtype:adhesive APPLICATIONS IoTDevices SmartCities SmartAgriculture ConsumerTracking SmartMetering SmartAgriculture ORDERINFORMATION ProductName258F25x11L31CM1Antenna PartNumberM01-0601920R0A Dimensions25x11mm Weight0.1g ColorBlack Mountingadhesive AntennaCableDefaultIPEX1RF1.13blackcoaxialcable(Ø1.13x31mm),customizable. REFERENCEGUIDE TechnicalFeatures(MHz)2400-2500 MaxVSWR3.0:1 MaxEfficiency42.58% PeakGain2.32dBi RadiationPattern Omnidirectional PolarizationLinear InputImpedance50Ω OperatingTemperature-40ºCto+85ºC StorageTemperature-40ºCto+85ºC RelativeHumidity10to70% MaterialSubstance Compliance RoHSCompliant Dimensions (LxWxH) 25x11mm Alltestdatawereobtainedfromtestingconductedon1.4mmthickpolycarbonate(PC)plasticmaterial;with an31-mm-longRF1.13cable.Applicationdatamightvary. Manufacturer: Wuping Jieruike Multilayer Circuit Co., Ltd Address: No. 18-1 East Road, High tech Park, Yanqian Town, Wuping County, Longyan City, Fujian Province ELECTRICALPERFORMANCE  Note Alldatadisplayedinthe"ELECTRICALPERFORMANCE"sectionweremeasuredusinga31mm-longRF1.13cable mountedon1.4mmthickpolycarbonate(PC)plasticmaterial. ReturnLoss Efficiency（%） PeakGain（dBi） Freq(MHz) Gain （ dBi ） Efficiency(%) 24001.6240.23 24101.6239.20 24201.7838.88 24302.0239.54 24402.1540.03 24502.3240.63 24602.2740.47 24702.2040.49 24802.2141.28 24902.1542.07 25001.9942.58 RADIATIONPATTERNS(Thedatawereobtainedthroughtestingconductedusinga 31-mm-longRF1.13cablemountedona1.4mmthickpolycarbonate(PC)plasticsubstrate.) 2DRadiationPatternat2450MHz 3DRadiationPatternat2450MHz HOUSINGCONFIGURATIONS IPEX 1 25.0±0.2 11.0±0.2 WIFI 开关 V1.0 31.0±1.0 Φ1.13±0.1

ReportNo.:CISRR26091007301 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of92 TESTREPORT ReportNo.CISRR26091007301 ProjectNo.CISR260910073 FCCID2BL4H-IE-10S ApplicantGuangdongDKMusicElectronicTechnologyCo.,Ltd. Address Unit301,BLDG5,No.16,JinxingRd,Hi-Tech Zone,Zhuhai,Guangdong,China. ManufacturerGuangdongDKMusicElectronicTechnologyCo.,Ltd. Address Unit301,BLDG5,No.16,JinxingRd,Hi-Tech Zone,Zhuhai,Guangdong,China. ProductNameHeadphoneAmp&Multi-EffectsProcessor TrademarkDeKode Model/TypereferenceiE-10S ListedModel(s)- Standard 47CFRPart15.247 DateofsamplereceiptSeptember10,2026 TestdateSeptember11,2026toSeptember16,2026 IssuedateSeptember17,2026 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu ReportNo.:CISRR26091007301 Page 2 of 92 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.Testsampleinformation.............................................................................................................................7 5.4.Environmentalconditions...........................................................................................................................7 5.5.Statementofthemeasurementuncertainty.............................................................................................7 5.6.EquipmentUsedduringtheTest................................................................................................................9 6.TESTRESULTS.............................................................................................................................................11 6.1.EvaluationResults(Evaluation)...............................................................................................................11 6.1.1.AntennaRequirement.............................................................................................................................11 6.2.RadioSpectrumMatterTestResults(RF)...............................................................................................12 6.2.1.ConductedEmissionatACpowerline.................................................................................................12 6.2.2.20dBBandwidth......................................................................................................................................15 6.2.3.MaximumConductedOutputPower.....................................................................................................17 6.2.4.ChannelSeparation................................................................................................................................18 6.2.5.NumberofHoppingFrequencies..........................................................................................................19 6.2.6.DwellTime...............................................................................................................................................20 6.2.7.Conductedbandedgeandspuriousemission...................................................................................22 6.2.8.Radiatedbandedgeemission...............................................................................................................24 6.2.9.RadiatedSpuriousEmission(below1GHz).........................................................................................30 6.2.10.RadiatedSpuriousEmission(Above1GHz)......................................................................................34 7.APPENDIXREPORT......................................................................................................................................48 7.1.MaximumConductedOutputPower........................................................................................................48 7.2.Bandwidth...................................................................................................................................................54 7.3.CarrierFrequencySeparation..................................................................................................................60 7.4.NumberofHoppingFrequencies....................................................................…

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ReportNo.:CISRR26091007301 Page 94 of 100 8.TESTSETUPPHOTOS ConductedEmissionatACpowerline Radiatedbandedgeemission RadiatedSpuriousEmission(Above1GHz) ReportNo.:CISRR26091007301 Page 95 of 100 RadiatedSpuriousEmission(below1GHz) RFConductedTest