2AF9P-SUDIOK2Bluetooth headphone

-SudioAB- FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 9/8/23 U.S.AgentDesignation [SudioAB]acknowledgestheirconsentforthefollowingcontactlocatedintheUnitedStatestoactastheiragent forserviceofprocessfortheequipmentforwhichauthorizationissought(FCCID:[2AF9P-SUDIOK2/ 2AF9P-SUDIOE3/2AF9P-SUDIOANN ]): NameandcompanyofU.S.agent:SudioLLCLEGALINCCORPORATESERVICESINC. PhysicalU.S.addressofagent:5830E2ndStSte8Casper.WY82609 FRNofU.S.agent:0033462458 EmailaddressofU.S.agent:[email protected] [SudioLLCLEGALINCCORPORATESERVICESINC.]acknowledgestheirobligationtoacceptserviceof processonbehalfof[SudioAB]. [SudioAB]withtheFRN[0024985681]acceptsitsobligationtomaintainanagentforserviceofprocessinthe UnitedStatesfornolessthanoneyearaftereitherthegranteehaspermanentlyterminatedallmarketingand importationoftheapplicableequipmentwithintheU.S.,ortheconclusionofanyCommission-related administrativeorjudicialproceedinginvolvingtheequipment,whicheverislater. Bysigningthisform,weconfirmtheaboveandthatweareawareoftheapplicationrequirementslistedunder§ 2.911(d)(7). TheinformationprovidedinthisletterisbasedonthereferencedrulepartsofTitle47oftheCFRaswellasKDB 986446D01. Anexpirationdateforthisletterdoesnotexist.IncasetheU.S.agentchanges,thegranteeisobligatedtonotify theFCCwithin30daysviathegrantingTCB. Sincerely, Signature [Name]:JohanGawel! [Title]:CEO [Company]:SudioAB 4 8 _ [ m o d e l ] U S _ A g e n t _ 2 . 9 1 1 ( d ) ( 7 ) - U , V 0 5 -SudioAB- Signature [NameofU.S.agent]:Jimmy [TitleofU.S.agent]:Productmanager [CompanyofU.S.agent]:SudioLLCLEGALINCCORPORATESERVICESINC.

-SudioAB- TheinformationprovidedinthisletterisbasedonthereferencedrulepartsofTitle47oftheCFRaswellasKDB986446D01. FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 9/25/23 Towhomitmayconcern: We,[SudioAB],herebycertifythattheequipmentforwhichauthorizationissought(FCCID:2AF9P- SUDIOK2)isnot“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuant to§2.903oftheFCCrules. Wealsocertifythat,asofthedateofthefilingoftheapplication,wearenotidentifiedontheCovered List(https://www.fcc.gov/supplychain/coveredlist)asanentityproducing“covered”equipment. Bysigningthisform,weconfirmtheaboveandthatweareawareoftheapplicationrequirements listedunder§2.911(b)and(d)(5)and(6). Sincerely, Signature [JohanGawell] [Manager] [SudioAB] 6 2 _ [ m o d e l ] C o v e r e d E q u _ 2 . 9 1 1 ( d ) ( 5 ) ( i ) a n d ( i i ) - U , V 0 2

ProjectNo.:18220WC301901Page 1 of 5 AppendixII--ExternalPhotograph ProjectNo.:18220WC301901Page 2 of 5 ProjectNo.:18220WC301901Page 3 of 5 ProjectNo.:18220WC301901Page 4 of 5 ProjectNo.:18220WC301901Page 5 of 5

LabelLocation: LabelSize:10mm*15mm;DiameteroftheGitekimarkmorethan5mm 220-JP6621 FCCID:2AF9P-SUDIOK2

ProjectNo.:18220WC301901Page 1 of 3 AppendixIII--InternalPhotograph ProjectNo.:18220WC301901Page 2 of 3 ANT ProjectNo.:18220WC301901Page 3 of 3

RFEXPOSUREEVALUATION FCCID:2AF9P-SUDIOK2 AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeused toevaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF) Radiationasspecifiedin§1.1307(b): RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,using measurementsorcomputersimulation.WhenroutineSARevaluationisnot required,portabletransmitterswithoutputpowergreaterthantheapplicable lowthresholdrequireSARevaluationtoqualifyforTCBapproval. Channel (MHz) Maximum output power (dBm) Tuneup tolerance (dBm) MaxTuneUp Power(dBm) Distance (mm) Calculation results Limit Operating Mode 24021.911.91 ±1 2.91050.6063 GFSK24411.901.90±1 2.90050.6093 24801.531.53±1 2.53050.5643 24022.802.80 ±1 3.80050.7443 π/4-DQPSK 24412.762.76±1 3.76050.7433 24802.392.39±1 3.39050.6873 24023.203.20 ±1 4.20050.8153 8DPSK24413.173.17±1 4.17050.8163 24802.792.79±1 3.79050.7543 Result:NoStandaloneSARtestisrequired.

Page1of52 AppendixTestData ReportNo.:18220WC30190101TestSampleNo.:1-2-2 StartTestDate:2023.09.04FinishTestDate:2023.09.07 TestEngineer:Auditor: Temperature:25.8 °C RelativeHumidity:48% Pressure:102kPa AppendixA:20dBEmissionBandwidth TestResult TestModeAntennaFrequency[MHz]20dbEBW[MHz]FL[MHz]FH[MHz] DH5Ant1 24020.9362401.5472402.483 24410.9572440.5472441.504 24800.9602479.5442480.504 2DH5Ant1 24021.3082401.3552402.663 24411.3172440.3492441.666 24801.3082479.3582480.666 3DH5Ant1 24021.3082401.3582402.666 24411.3052440.3582441.663 24801.3052479.3612480.666 Page2of52 TestGraphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 Page3of52 2DH5_Ant1_2402 2DH5_Ant1_2441 Page4of52 2DH5_Ant1_2480 3DH5_Ant1_2402 3DH5_Ant1_2441 Page5of52 3DH5_Ant1_2480 Page6of52 AppendixB:OccupiedChannelBandwidth TestResult TestModeAntennaFrequency[MHz]OCB[MHz]FL[MHz]FH[MHz] DH5Ant1 24020.855602401.57982402.4354 24410.868572440.57492441.4435 24800.876042479.57282480.4488 2DH5Ant1 24021.18972401.41392402.6036 24411.17102440.42042441.5914 24801.17932479.42002480.5993 3DH5Ant1 24021.17642401.42482402.6012 24411.18512440.41832441.6034 24801.18822479.41492480.6031 Page7of52 TestGraphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 Page8of52 2DH5_Ant1_2402 2DH5_Ant1_2441 Page9of52 2DH5_Ant1_2480 3DH5_Ant1_2402 3DH5_Ant1_2441 Page10of52 3DH5_Ant1_2480 Page11of52 AppendixC:Maximumconductedoutputpower TestResultPeak TestModeAntennaFrequency[MHz] ConductedPeak Power[dBm] Conducted Limit[dBm] Verdict DH5Ant1 24021.91≤20.97PASS 24411.90≤20.97PASS 24801.53≤20.97PASS 2DH5Ant1 24022.80≤20.97PASS 24412.76≤20.97PASS 24802.39≤20.97PASS 3DH5Ant1 24023.20≤20.97PASS 24413.17≤20.97PASS 24802.79≤20.97PASS Page12of52 TestGraphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 Page13of52 2DH5_Ant1_2402 2DH5_Ant1_2441 Page14of52 2DH5_Ant1_2480 3DH5_Ant1_2402 3DH5_Ant1_2441 Page15of52 3DH5_Ant1_2480 Page16of52 AppendixD:Carrierfrequencyseparation TestResult TestModeAntennaFrequency[MHz]Result[MHz]Limit[MHz]Verdict DH5Ant1Hop1.012≥0.960PASS 2DH5Ant1Hop1.010≥0.878PASS 3DH5Ant1Hop1.014≥0.872PASS Page17of52 TestGraphs DH5_Ant1_Hop 2DH5_Ant1_Hop 3DH5_Ant1_Hop Page18of52 Page19of52 AppendixE:Timeofoccupancy TestResult TestModeAntennaFrequency[MHz] BurstWidth [ms] TotalHops [Num] Result[s]Limit[s]Verdict DH1Ant1Hop0.3813180.121≤0.4PASS DH3Ant1Hop1.6381420.233≤0.4PASS DH5Ant1Hop2.8851150.332≤0.4PASS 2DH1Ant1Hop0.3903170.124≤0.4PASS 2DH3Ant1Hop1.6431590.261≤0.4PASS 2DH5Ant1Hop2.8911100.318≤0.4PASS 3DH1Ant1Hop0.3903160.123≤0.4PASS 3DH3Ant1Hop1.6421560.256≤0.4PASS 3DH5Ant1Hop2.8931030.298≤0.4PASS Page20of52 TestGraphs DH1_Ant1_Hop DH3_Ant1_Hop Page21of52 DH5_Ant1_Hop Page22of52 2DH1_Ant1_Hop 2DH3_Ant1_Hop Page23of52 2DH5_Ant1_Hop Page24of52 3DH1_Ant1_Hop 3DH3_Ant1_Hop Page25of52 3DH5_Ant1_Hop Page26of52 Page27of52 AppendixF:Numberofhoppingchannels TestResult TestModeAntennaFrequency[MHz]Result[Num]Limit[Num]Verdict DH5Ant1Hop79≥15PASS 2DH5Ant1Hop79≥15PASS 3DH5Ant1Hop79≥15PASS Page28of52 TestGraphs DH5_Ant1_Hop 2DH5_Ant1_Hop 3DH5_Ant1_Hop Page29of52 Page30of52 AppendixG:Bandedgemeasurements TestResult TestModeAntennaChNameFrequency[MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5Ant1 Low24021.49-37.77≤-18.51PASS High24801.13-51.72≤-18.87PASS LowHop_24021.50-54.41≤-18.5PASS HighHop_24801.41-53.38≤-18.59PASS 2DH5Ant1 Low24021.55-38.68≤-18.45PASS High2480-0.16-55.77≤-20.16PASS LowHop_24021.36-54.73≤-18.65PASS HighHop_24800.41-52.87≤-19.59PASS 3DH5Ant1 Low24021.23-39.14≤-18.77PASS High24800.86-55.34≤-19.14PASS LowHop_24021.66-55.19≤-18.34PASS HighHop_24801.00-53.91≤-19.00PASS Page31of52 TestGraphs DH5_Ant1_Low_2402 DH5_Ant1_High_2480 DH5_Ant1_Low_Hop_2402 Page32of52 DH5_Ant1_High_Hop_2480 2DH5_Ant1_Low_2402 Page33of52 2DH5_Ant1_High_2480 2DH5_Ant1_Low_Hop_2402 2DH5_Ant1_High_Hop_2480 Page34of52 3DH5_Ant1_Low_2402 3DH5_Ant1_High_2480 Page35of52 3DH5_Ant1_Low_Hop_2402 3DH5_Ant1_High_Hop_2480 Page36of52 AppendixH:ConductedSpuriousEmission TestResult TestModeAntennaFrequency[MHz] FreqRange [MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5Ant1 2402 Reference1.131.13---PASS 30~10001.13-68.97≤-18.87PASS 1000~265001.13-30.73≤-18.87PASS 2441 Reference0.970.97---PASS 30~10000.97-69.23≤-19.03PASS 1000~265000.97-33.73≤-19.03PASS 2480 Reference0.650.65---PASS 30~10000.65-68.00≤-19.35PASS 1000~265000.65-35.06≤-19.35PASS 2DH5Ant1 2402 Reference1.681.68---PASS 30~10001.68-68.67≤-18.32PASS 1000~265001.68-30.63≤-18.32PASS 2441 Reference1.581.58---PASS 30~10001.58-69.33≤-18.42PASS 1000~265001.58-33.57≤-18.42PASS 2480 Reference-1.19-1.19---PASS 30~1000-1.19-68.43≤-21.19PASS 1000~26500-1.19-35.09≤-21.19PASS 3DH5Ant1 2402 Reference0.420.42---PASS 30~10000.42-69.33≤-19.58PASS 1000~265000.42-30.66≤-19.58PASS 2441 Reference0.990.99---PASS 30~10000.99-69.12≤-19.01PASS 1000~265000.99-33.48≤-19.01PASS 2480 Reference1.081.08---PASS 30~10001.08-67.85≤-18.92PASS 1000~265001.08-35.12≤-18.92PASS Page37of52 TestGraphs DH5_Ant1_2402_0~Reference DH5_Ant1_2402_30~1000 DH5_Ant1_2402_1000~26500 Page38of52 DH5_Ant1_2441_0~Reference DH5_Ant1_2441_30~1000 Page39of52 DH5_Ant1_2441_1000~26500 DH5_Ant1_2480_0~Reference DH5_Ant1_2480_30~1000 Page40of52 DH5_Ant1_2480_1000~26500 2DH5_Ant1_2402_0~Reference Page41of52 2DH5_Ant1_2402_30~1000 2DH5_Ant1_2402_1000~26500 2DH5_Ant1_2441_0~Reference Page42of52 2DH5_Ant1_2441_30~1000 2DH5_Ant1_2441_1000~26500 Page43of52 2DH5_Ant1_2480_0~Reference 2DH5_Ant1_2480_30~1000 2DH5_Ant1_2480_1000~26500 Page44of52 3DH5_Ant1_2402_0~Reference 3DH5_Ant1_2402_30~1000 Page45of52 3DH5_Ant1_2402_1000~26500 3DH5_Ant1_2441_0~Reference 3DH5_Ant1_2441_30~1000 Page46of52 3DH5_Ant1_2441_1000~26500 3DH5_Ant1_2480_0~Reference Page47of52 3DH5_Ant1_2480_30~1000 3DH5_Ant1_2480_1000~26500 Page48of52 AppendixI:DutyCycle TestResult TestModeAntennaFrequency[MHz] ONTime [ms] Period [ms] DutyCycle [%] DutyCycle Factor[dB] DH5Ant1 24022.893.7577.071.13 24412.893.7577.071.13 24802.883.7477.011.13 2DH5Ant1 24022.893.7477.271.12 24412.893.7477.271.12 24802.893.7577.071.13 3DH5Ant1 24022.893.7477.271.12 24…

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ReportNo.:18220WC30190101FCCID:2AF9P-SUDIOK2Page1of38 FCCTestReport Applicant:SudioAB Address:Artillerigatan42,11445Stockholm,Sweden ProductName:Bluetoothheadphone ReportDate:Sept.25,2023 ShenzhenAnbotekComplianceLaboratoryLimited ReportNo.:18220WC30190101FCCID:2AF9P-SUDIOK2Page2of38 Contents 1.GeneralInformation.................................................................................................................................6 1.1.ClientInformation...........................................................................................................................6 1.2.DescriptionofDevice(EUT)..........................................................................................................6 1.3.AuxiliaryEquipmentUsedDuringTest..........................................................................................6 1.4.Operationchannellist....................................................................................................................7 1.5.DescriptionofTestModes.............................................................................................................7 1.6.MeasurementUncertainty.............................................................................................................8 1.7.TestSummary................................................................................................................................8 1.8.DescriptionofTestFacility.............................................................................................................9 1.9.Disclaimer......................................................................................................................................9 1.10.TestEquipmentList...................................................................................................................10 2.Antennarequirement..............................................................................................................................12 2.1.Conclusion...................................................................................................................................12 3.ConductedEmissionatACpowerline..................................................................................................13 3.1.EUTOperation.............................................................................................................................13 3.2.TestSetup....................................................................................................................................13 3.3.TestData......................................................................................................................................14 4.OccupiedBandwidth..............................................................................................................................16 4.1.EUTOperation.............................................................................................................................17 4.2.TestSetup....................................................................................................................................17 4.3.TestData......................................................................................................................................17 5.MaximumConductedOutputPower......................................................................................................18 5.1.EUTOperation.............................................................................................................................18 5.2.TestSetup....................................................................................................................................19 5.3.TestData......................................................................................................................................19 6.ChannelSeparation...............................................................................................................................20 6.1.EUTOperation.............................................................................................................................20 6.2.TestSetup....................................................................................................................................20 6.3.TestData......................................................................................................................................20 7.NumberofHoppingFrequencies...........................................................................................................21 7.1.EUTOperation.............................................................................................................................21 7.2.TestSetup....................................................................................................................................22 7.3.TestData......................................................................................................................................22 8.DwellTime..............................................................................................................................................23 8.1.EUTOperation.............................................................................................................................24 8.2.TestSetup....................................................................................................................................24 8.3.TestData......................................................................................................................................24 9.Emissionsinnon-restrictedfrequencybands.......................................................................................25 9.1.EUTOperation.............................................................................................................................26 9.2.TestSetup.................................................................…

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version01 SudioAB DeclarationconcerningAntennaSpecification Itisherebydeclaredthattheproduct ModelNo.:SudioK2 FCCID:2AF9P-SUDIOK2 fulfillstherequirementinFCCtestrelatingtotheantennatype. ThedevicespecifiedaboveconfirmstotheFCCrecommendationsfor internal antennatype(s) describedbelow: ModelNo.ofantenna:K2 Typeofantenna:PCBantenna Gainoftheantenna:4.42dBi Frequencyrange:2400-2500MHz Themountingoftheantennaisfixedtotheradiomoduleandnootherantennashouldbeused. Companyname:SudioAB Address:Artillerigatan42,11445, City:Stockholm ZIP/Postalcode:/ Country:Sweden Place:StockholmDate:9/25/2023 Signature:

Antenna Test Report Customer佳利得 ProjectK2 Antenna RevisionA0 Prepared by15993920520 Checked by15993920520 Date:2023.08.24 This report is to measure the performance of antenna for K2 The antenna operating frequency at 2400-2500MHz, All test data are showed as below. Content 1. est system 2.Product Overview Dimension 3. Test Result 3.1 S11 Parameter 3.2 Gain & Efficienc 3.3 2D Pattern 3 .4 OTA Purpose Sequence Number Test Item equipment S parameter VSWR Agilent 5071C & Agilent 5071B OTA TestTRP&TIS Agilent8960 & CMW500 STIMO Gain & Efficiency Gain & Efficiency SATIMO Agilent 5071C 1.TestSystem 2.Product Overview & Dimension 3.TestResult 3.1 S11 Parameter-VSWR Frequency (MHz) 2400245024802500 VSWR1.541.671.801.88 4 3.Test Result 3.2 Gain & Efficiency——ANT Frequency (MHz)Efficiency (%)Max GAIN (dBi) 2400 46.033.91 2410 47.113.92 2420 47.863.84 2430 46.993.92 2440 47.753.88 2450 49.214.07 2460 50.124.28 2470 48.084.02 2480 49.094.09 2490 50.824.14 2500 50.934.42 7 3.TestResult 3.3 2D Pattern——BT ANT 15 3.4 OTA Data Test Equipment：R&S CMW500 Test Condition：3D chamber BandChannelTRP(dBm)TIS(dBm) BT 0 3.38-90.65 39 4.41-91.42 78 3.81-90.94 3.TestResult 4 TRP 3.TestResult 4 TIS

ProjectNo.:18220WC301901Page 1 of 2 AppendixI--TestSetupPhotograph ConductedEmissionatACpowerline Emissionsinfrequencybands(below1GHz) ProjectNo.:18220WC301901Page 2 of 2 Emissionsinfrequencybands(above1GHz)