2AV7N-MKSERIESDigital piano

1 of 5 Attachment 2： Internal Photo of EUT Photo 1: Internal View Photo 2: Internal View for PCB 2 of 5 Photo 3: Internal View for PCB B Photo 4: Internal View for PCB 3 of 5 Photo 5: Internal View for PCB Photo 6: Internal View for PCB 4 of 5 Photo 7: Internal View for PCB Photo 8: Interface Close-up 5 of 5 Photo 9: Internal View for BT Antenna BT Antenna

1 of 2 Attachment 3： Test Setup Photo Description: RF Radiated Emission Test Setup for 30MHz ~ 1GHz Description:RF Radiated Emission Test Setup for 1GHz ~ 18GHz 2 of 2 Description: RF Conducted Test Setup Photo Description: AC Conducted Emissions Test Setup Photo

Product SDecification Quick Reference Date Antenna module on the system board Frequenc Range 2400 〜 2500MHz Ant. Port Input Pwr. (dBm) 0 (Typ. BT class 1 output power) Tot. Rad. Pwr. (dBm) -1.2 (Input pwr - loss pwr) Peak EIRP(dBm) 1.2 Directivity (dBi) 1 (all direction antenna) Efficiency (dB) 6 0.2% Gain (dBi) 4 (Avg Gain XY-plane) Maximum Power (dBm) 1.7 (XY-plane) Minimum Power (dBm) -4(XY-plane) Avg. Power (dBm) -0.5(XY-plane) Input Impendence(ohm) 50 Polarization Type V ertical & Horizontal V .S .W .R < 1.4 All the technical data and information contained herein are subject to change without prior notice Antenna Layout & module on the system board Antenna Gain Gain Table Module Board XY-plane XZ-plane YZ-plane Efficiency Peak Avg. Peak Avg. Peak Avg. Unit in dBi @2.44GHz 1.2 -0.5 1.9 -3.6 1.1 -3.0 6 0.2% Unit in dBi @2.45GHz 3.9 0.5 -1.8 4.0 -1.2 3.8 68.5% Retum Loss 77. 264 010( GHZ OOdB/ Mag 4000000 4400000 4800000 7828 0241 OOOdB [Fl] 4000000 GHZ -11.425 4400000 GHZ -21.317 4800000 GHZ -19.303 The Environment of Antenna Radiation Pattem XY-plane XZ-plane YZ-plane 3D radiation pattern diagram Ear-field Power I )istnbution( V) on X-Y Plane MX -0 «dBi 32 4M00<Mz Far-ikld Power l)istributio«(H+V) on X-Z Plane Mo« Pak GMIM.V>- loadBi.Ptot AvgG«MH«V>- 32 44000GHz Far-Held Power I)istributio«(H+V) on Y-Z Plane * 2 GmM.Vh ” I g PlM AvcG««H>V> -2 -NdBi 32 44000GHz

ReportNo.:S2025072297960102 PageNumber: 55 of 110 7.6.4.TestSetup 9kHz~30MHzTestSetup: 30MHz~1GHzTestSetup: ReportNo.:S2025072297960102 PageNumber: 56 of 110 1GHz~18GHzTestSetup: 18GHz~25GHzTestSetup: ReportNo.:S2025072297960102 PageNumber: 57 of 110 7.6.5.TestResult TheworstcaseofRadiatedEmissionbelow1GHz: 30MHz–1GHzTestData EUT:DIGITALPIANOPolarity:Horizontal Model:DDP-200TestEngineer:ChuangLi Mode:TransmitatBLE_1MChannel00Voltage:AC120V Environment:Temp:22.1°C;Humi:52%TestDate:2025-09-30 TestGraph FinalDataList NO. Frequency [MHz] Factor [dB/m] QP Reading [dBμV] QP Value [dBμV/m] QP Limit [dBμV/m] QP Margin [dB] Height [cm] Angle [°] PolarityVerdict 136.7913.119.5222.6340.0017.37100233HorizontalPASS 279.9811.2013.2924.4940.0015.5115054HorizontalPASS 3143.5516.6711.2127.8843.5015.62100303HorizontalPASS 4221.1915.7117.2732.9846.0013.02100107HorizontalPASS 5355.6018.1512.5230.6746.0015.3310091HorizontalPASS 6491.4721.8413.9135.7546.0010.2515070HorizontalPASS Note1:Thetesttraceissameastheambientnoiseandtheamplitudeoftheemissionsareattenuatedmore than20dBbelowthepermissible(thetestfrequencyrange:9kHz~30MHz,18GHz~26.5GHz),thereforeno dataappearinthereport. ReportNo.:S2025072297960102 PageNumber: 58 of 110 EUT:DIGITALPIANOPolarity:Vertical Model:DDP-200TestEngineer:ChuangLi Mode:TransmitatBLE_1MChannel00Voltage:AC120V Environment:Temp:22.1°C;Humi:52%TestDate:2025-09-30 TestGraph FinalDataList NO. Frequency [MHz] Factor [dB/m] QP Reading [dBμV] QP Value [dBμV/m] QP Limit [dBμV/m] QP Margin [dB] Height [cm] Angle [°] PolarityVerdict 136.7913.1113.0126.1240.0013.88100290VerticalPASS 252.8113.1812.8326.0140.0013.99100111VerticalPASS 376.5811.2714.2925.5640.0014.44100358VerticalPASS 4147.4316.9513.3230.2743.5013.23150172VerticalPASS 5382.7718.8213.6132.4346.0013.57100167VerticalPASS 6491.4721.8410.0731.9146.0014.09150360VerticalPASS ReportNo.:S2025072297960102 PageNumber: 59 of 110 30MHz–1GHzTestData EUT:DIGITALPIANOPolarity:Horizontal Model:DDP-200TestEngineer:ChuangLi Mode:TransmitatBLE_1MChannel19Voltage:AC120V Environment:Temp:22.1°C;Humi:52%TestDate:2025-09-30 TestGraph FinalDataList NO. Frequency [MHz] Factor [dB/m] QP Reading [dBμV] QP Value [dBμV/m] QP Limit [dBμV/m] QP Margin [dB] Height [cm] Angle [°] PolarityVerdict 136.7913.118.6921.8040.0018.20150283HorizontalPASS 277.5511.2513.7324.9840.0015.0215040HorizontalPASS 3167.3217.661229.6643.5013.84100113HorizontalPASS 4239.1415.8220.4636.2846.009.72100226HorizontalPASS 5491.4721.8413.4935.3346.0010.6710061HorizontalPASS 6786.4926.347.9734.3146.0011.69150208HorizontalPASS Note1:Thetesttraceissameastheambientnoiseandtheamplitudeoftheemissionsareattenuatedmore than20dBbelowthepermissible(thetestfrequencyrange:9kHz~30MHz,18GHz~26.5GHz),thereforeno dataappearinthereport. ReportNo.:S2025072297960102 PageNumber: 60 of 110 EUT:DIGITALPIANOPolarity:Vertical Model:DDP-200TestEngineer:ChuangLi Mode:TransmitatBLE_1MChannel19Voltage:AC120V Environment:Temp:22.1°C;Humi:52%TestDate:2025-09-30 TestGraph FinalDataList NO. Frequency [MHz] Factor [dB/m] QP Reading [dBμV] QP Value [dBμV/m] QP Limit [dBμV/m] QP Margin [dB] Height [cm] Angle [°] PolarityVerdict 137.2813.0911.3724.4640.0015.54100273VerticalPASS 278.0411.2416.5427.7840.0012.22150170VerticalPASS 3143.5516.677.524.1743.5019.33150146VerticalPASS 4335.2217.5415.1232.6646.0013.34100173VerticalPASS 5491.4721.8412.0533.8946.0012.11150110VerticalPASS 6699.1524.956.8331.7846.0014.22150334VerticalPASS Note1:Thetesttraceissameastheambientnoiseandtheamplitudeoftheemissionsareattenuatedmore than20dBbelowthepermissible(thetestfrequencyrange:9kHz~30MHz,18GHz~26.5GHz),thereforeno dataappearinthereport. ReportNo.:S2025072297960102 PageNumber: 61 of 110 30MHz–1GHzTestData EUT:DIGITALPIANOPolarity:Horizontal Model:DDP-200TestEngineer:ChuangLi Mode:TransmitatBLE_1MChannel39Voltage:AC120V Environment:Temp:22.1°C;Humi:52%TestDate:2025-09-30 TestGraph FinalDataList NO. Frequency [MHz] Factor [dB/m] QP Reading [dBμV] QP Value [dBμV/m] QP Limit [dBμV/m] QP Margin [dB] Height [cm] Angle [°] PolarityVerdict 195.0211.6815.5227.2043.5016.30150245HorizontalPASS 2193.0415.3713.0428.4143.5015.09100257HorizontalPASS 3239.1415.8219.4735.2946.0010.71150317HorizontalPASS 4382.7718.8215.2934.1146.0011.89100251HorizontalPASS 5491.4721.8413.2735.1146.0010.8910061HorizontalPASS 6687.9924.767.3432.1046.0013.9010026HorizontalPASS Note1:Thetesttraceissameastheambientnoiseandtheamplitudeoftheemissionsareattenuatedmore than20dBbelowthepermissible(thetestfrequencyrange:9kHz~30MHz,18GHz~26.5GHz),thereforeno dataappearinthereport. ReportNo.:S2025072297960102 PageNumber: 62 of 110 EUT:DIGITALPIANOPolarity:Vertical Model:DDP-200TestEngineer:ChuangLi Mode:TransmitatBLE_1MChannel39Voltage:AC120V Environment:Temp:22.1°C;Humi:52%TestDate:2025-09-30 TestGraph FinalDataList NO. Frequency [MHz] Factor [dB/m] QP Reading [dBμV] QP Value [dBμV/m] QP Limit [dBμV/m] QP Margin [dB] Height [cm] Angle [°] PolarityVerdict 136.7913.1112.225.3140.0014.6910076VerticalPASS 278.0411.2416.0727.3140.0012.69100170VerticalPASS 3235.7415.8011.0526.8546.0019.15100208VerticalPASS 4382.7718.8210.6729.4946.0016.51100270VerticalPASS 5491.4721.8412.6734.5146.0011.49150112VerticalPASS 6709.8224.878.8833.7546.0012.2510084VerticalPASS Note1:Thetesttraceissameastheambientnoiseandtheamplitudeoftheemissionsareattenuatedmore than20dBbelowthepermissible(thetestfrequencyrange:9kHz~30MHz,18GHz~25GHz),thereforeno dataappearinthereport. ReportNo.:S2025072297960102 PageNumber: 63 of 110 30MHz–1GHzTestData EUT:DIGITALPIANOPolarity:Horizontal Model:DDP-200TestEngineer:ChuangLi Mode:TransmitatBLE_2MChannel00Voltage:AC120V Environment:Temp:22.1°C;Humi:52%TestDate:2025-09-30 TestGraph FinalDataList NO. Frequency [MHz] Factor [dB/m] QP Reading [dBμV] QP Value [dBμV/m] QP Limit [dBμV/m] QP Margin [dB] Height [cm] Angle [°] PolarityVerdict 136.7913.117.3420.4540.0019.55100239HorizontalPASS 277.0711.278.419.6740.0020.3315056HorizontalPASS 3162.9617.7810.0227.8043.5015.7010072HorizontalPASS 4239.14…

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ReportNo.:S2025072297960102 PageNumber: 28 of 110 BLE_2M_Ant1_2480 ReportNo.:S2025072297960102 PageNumber: 29 of 110 7.3.OutputPowerMeasurement 7.3.1.TestLimit Themaximumpermissibleconductedoutputpoweris1Watt(30dBm). ThemaximumpermissibleconductedEIRPis4Watt(36.02dBm). Andforantennagaingreaterthan6dBithelimitshallreducebytheamountindBthatthe directionalgainoftheantennaexceeds6dBi. 7.3.2.TestProcedureUsed ANSIC63.10-2013–Section11.9.1.1 KDB558074D01v05r02–Section8.3.1.2 7.3.3.TestSetting 1.SettheRBW≥DTSbandwidth. 2.SettheVBW≥[3×RBW]. 3.Setthespan≥[3×RBW]. 4.Detector=peak. 5.Sweeptime=autocouple. 6.Tracemode=maxhold. 7.Allowtracetofullystabilize. 8.Usepeakmarkerfunctiontodeterminethepeakamplitudelevel. ReportNo.:S2025072297960102 PageNumber: 30 of 110 7.3.4.TestSetup 7.3.5.TestResult TestModeAntennaChannelResult[dBm]Limit[dBm] EIRP[dBm]Limit[dBm] Verdict BLE_1MAnt1 24024.72≤308.72≤36.02PASS 24404.44≤308.44≤36.02PASS 24804.34≤308.34≤36.02PASS BLE_2MAnt1 24024.51≤308.51≤36.02PASS 24404.19≤308.19≤36.02PASS 24804.14≤308.14≤36.02PASS ReportNo.:S2025072297960102 PageNumber: 31 of 110 TestGraphs BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 ReportNo.:S2025072297960102 PageNumber: 32 of 110 BLE_2M_Ant1_2402 BLE_2M_Ant1_2440 ReportNo.:S2025072297960102 PageNumber: 33 of 110 BLE_2M_Ant1_2480 ReportNo.:S2025072297960102 PageNumber: 34 of 110 7.4.PowerSpectralDensityMeasurement 7.4.1.TestLimit Themaximumpermissiblepowerspectraldensityis8dBminany3kHzband.Andforantenna gaingreaterthan6dBithelimitshallreducebytheamountindBthatthedirectionalgainofthe antennaexceeds6dBi. 7.4.2.TestProcedureUsed KDB558074D01v05r02-Section8.4 ANSIC63.10–Section11.10.2 7.4.3.TestSetting 1.SetanalyzercenterfrequencytoDTSchannelcenterfrequency. 2.Setthespanto1.5timestheDTSbandwidth. 3.SettheRBWto3kHz≤RBW≤100kHz. 4.SettheVBW≥[3×RBW]. 5.Detector=peak. 6.Sweeptime=autocouple. 7.Tracemode=maxhold. 8.Allowtracetofullystabilize. ReportNo.:S2025072297960102 PageNumber: 35 of 110 7.4.4.TestSetup ReportNo.:S2025072297960102 PageNumber: 36 of 110 7.4.5.TestResult TestModeAntennaChannelResult[dBm/3kHz]Limit[dBm/3kHz]Verdict BLE_1MAnt1 2402-11.32≤8.00PASS 2440-11.50≤8.00PASS 2480-11.71≤8.00PASS BLE_2MAnt1 2402-15.03≤8.00PASS 2440-15.19≤8.00PASS 2480-15.42≤8.00PASS TestGraphs BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 ReportNo.:S2025072297960102 PageNumber: 37 of 110 BLE_1M_Ant1_2480 BLE_2M_Ant1_2402 ReportNo.:S2025072297960102 PageNumber: 38 of 110 BLE_2M_Ant1_2440 BLE_2M_Ant1_2480 ReportNo.:S2025072297960102 PageNumber: 39 of 110 ReportNo.:S2025072297960102 PageNumber: 40 of 110 7.5.ConductedBandEdgeandOut-of-BandEmissions 7.5.1.TestLimit Thelimitforout-of-bandspuriousemissionsatthebandedgeis20dBbelowthefundamental emissionlevel,asdeterminedfromthein-bandpowermeasurementoftheDTSchannel performedina100kHzbandwidthperthePSDprocedure. 7.5.2.TestProcedureUsed KDB558074D01v05r02-Section8.5&Section8.6 ANSIC63.10–Section11.11&11.12 7.5.3.TestSettitng (a)Setthecenterfrequencyandspantoencompassfrequencyrangetobemeasured (b)RBW=100kHz (c)VBW=300kHz (d)Detector=Peak (e)Tracemode=maxhold (f)Sweeptime=autocouple (g)Thetracewasallowedtostabilize 7.5.4.TestSetup ReportNo.:S2025072297960102 PageNumber: 41 of 110 7.5.5.TestResult TestModeAntennaChannel FreqRange [MHz] RefLevel [dBm] Result[dBm]Limit[dBm]Verdict BLE_1MAnt1 2402 Reference3.233.23---PASS 30~10003.23-40.73≤-16.77PASS 1000~265003.23-31.76≤-16.77PASS 2440 Reference3.013.01---PASS 30~10003.01-36.52≤-16.99PASS 1000~265003.01-29.97≤-16.99PASS 2480 Reference2.792.79---PASS 30~10002.79-39.4≤-17.21PASS 1000~265002.79-31.42≤-17.21PASS BLE_2MAnt1 2402 Reference2.532.53---PASS 30~10002.53-39.13≤-17.47PASS 1000~265002.53-31.02≤-17.47PASS 2440 Reference2.302.30---PASS 30~10002.30-40.79≤-17.7PASS 1000~265002.30-32.04≤-17.7PASS 2480 Reference2.122.12---PASS 30~10002.12-40.37≤-17.88PASS 1000~265002.12-31.57≤-17.88PASS ReportNo.:S2025072297960102 PageNumber: 42 of 110 TestGraphsofConductedBandEdge BLE_1M_Ant1_Low_2402 BLE_1M_Ant1_High_2480 BLE_2M_Ant1_Low_2402 ReportNo.:S2025072297960102 PageNumber: 43 of 110 BLE_2M_Ant1_High_2480 ReportNo.:S2025072297960102 PageNumber: 44 of 110 TestGraphsofOut-of-BandEmissions BLE_1M_Ant1_2402_0~Reference BLE_1M_Ant1_2402_30~1000 BLE_1M_Ant1_2402_1000~26500 ReportNo.:S2025072297960102 PageNumber: 45 of 110 BLE_1M_Ant1_2440_0~Reference BLE_1M_Ant1_2440_30~1000 ReportNo.:S2025072297960102 PageNumber: 46 of 110 BLE_1M_Ant1_2440_1000~26500 BLE_1M_Ant1_2480_0~Reference ReportNo.:S2025072297960102 PageNumber: 47 of 110 BLE_1M_Ant1_2480_30~1000 BLE_1M_Ant1_2480_1000~26500 ReportNo.:S2025072297960102 PageNumber: 48 of 110 BLE_2M_Ant1_2402_0~Reference BLE_2M_Ant1_2402_30~1000 ReportNo.:S2025072297960102 PageNumber: 49 of 110 BLE_2M_Ant1_2402_1000~26500 BLE_2M_Ant1_2440_0~Reference ReportNo.:S2025072297960102 PageNumber: 50 of 110 BLE_2M_Ant1_2440_30~1000 BLE_2M_Ant1_2440_1000~26500 ReportNo.:S2025072297960102 PageNumber: 51 of 110 BLE_2M_Ant1_2480_0~Reference BLE_2M_Ant1_2480_30~1000 ReportNo.:S2025072297960102 PageNumber: 52 of 110 BLE_2M_Ant1_2480_1000~26500 ReportNo.:S2025072297960102 PageNumber: 53 of 110 7.6.RadiatedSpuriousEmissionMeasurement 7.6.1.TestLimit AlloutofbandemissionsappearinginarestrictedbandasspecifiedinSection15.205oftheTitle 47CFRmustnotexceedthelimitsshowninTableperSection15.209. FCCPart15SubpartCParagraph15.209 Frequency [MHz] FieldStrength [uV/m] MeasuredDistance [Meters] 0.009–0.4902400/F(kHz)300 0.490–1.70524000/F(kHz)30 1.705-303030 30-881003 88-2161503 216-9602003 Above9605003 7.6.2.TestProcedureUsed ANSIC63.10-2013–Section6.6.4.3 7.6.3.TestSetting PeakFieldStrengthMeasurements 1.Analyzercenterfrequencywassettothefrequencyoftheradiatedspuriousemissionofinterest 2.RBW=asspecifiedinTable1 3.VBW=3MHz 4.Detector=peak 5.Sweeptime=autocouple 6.Tracemode=maxhold 7.Tracewasallowedtostabilize ReportNo.:S2025072297960102 PageNumber: 54 of 110 Table1-RBWasafunctionoffrequency FrequencyRBW 9~150kHz200~300Hz 0.15~30MHz9~10kHz 30~1000MHz100~120kHz >1000MHz1MHz AverageFiel…

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FangguangInspection&TestingCo.,Ltd. Tel:+86-020-38098960-6006Email:[email protected]://www.fgtest.cn TRFNo.:FG.WI-EMC-07-010(1.1) PageNumber:1of110 ReportNo.:S2025072297960102 IssueDate:10-23-2025 Applicant:GUANGZHOURANTIONTECHNOLOGYCO.,LTD. Address: Room7002and7003,7thFloor,DigitalEntertainment IndustrialPark,GreaterBayArea,No.28HuangpuPark WestRoad,HuangpuDistrict,Guangzhou,China. FCCID: 2AV7N-MKSERIES Product:DIGITALPIANO ModelNo.: DDP-200,DDP-200MK2,DDP-200MK3,DDP-200MK4, DDP-200MK5,DDP-200MK6,DDP-200MK7, DODN3020,DODN6671,DODN6682,DODN6683, DODN6684,DODN6685,DODN6686 FCCClassification:DigitalTransmissionSystem(DTS) FCCRulePart(s):Part15SubpartC(15.247) TestProcedure(s):ANSIC63.10-2013,KDB558074D01v05r02 Result:Pass ItemReceiptDate:Sep.09,2025 TestDate:Sep.16,~Oct.10,2025 MEASUREMENTREPORT FCCPART15.247Bluetooth-LE CompiledBy 检 (ChuangLi) SeniorTestEngineer ApprovedBy (LineChen) EngineerManager Thetestresultsrelateonlytothesamplestested. Thisequipmenthasbeenshowntobecapableofcompliancewiththeapplicabletechnicalstandards asindicatedinthemeasurementreportandwastestedinaccordancewiththemeasurement proceduresspecifiedinANSIC63.10-2013.Testresultsreportedhereinrelateonlytotheitem(s) ThetestreportshallnotbereproducedexceptinfullwithoutthewrittenapprovalofFangguang Inspection&TestingCo.,Ltd.WuxiBranch. Thetestreportmustnotbeusedbytheclienttoclaimproductcertifications,approval,orendorsement byNVLAP,NISToranyagencyofU.S.Government. ReportNo.:S2025072297960102 PageNumber: 2 of 110 RevisionHistory ReportNo.VersionDescriptionIssueDate S2025072297960102Rev.01 / 10-23-2025 ReportNo.:S2025072297960102 PageNumber: 3 of 110 CONTENTS DescriptionPage §2.1033GeneralInformation..............................................................................................................5 1.INTRODUCTION..........................................................................................................................6 1.1.Scope................................................................................................................................6 1.2.FangguangTestLocation.................................................................................................6 2.PRODUCTINFORMATION..........................................................................................................7 2.1.EquipmentDescription......................................................................................................7 2.2.ProductSpecificationSubjectivetothisReport................................................................7 2.3.OperationFrequency/ChannelList.................................................................................8 2.4.DeviceCapabilities............................................................................................................8 2.5.DescriptionofTestSoftware...........................................................................................12 2.6.TestMode.......................................................................................................................12 2.7.TestConfiguration...........................................................................................................12 2.8.EMISuppressionDevice(s)/Modifications......................................................................12 2.9.EUTPhoto.......................................................................................................................12 2.10.LabelingRequirements...................................................................................................12 2.11.Calculationwithallconversionandcorrectionfactorsused..........................................12 3.DESCRIPTIONOFTEST...........................................................................................................14 3.1.EvaluationProcedure......................................................................................................14 3.2.ACLineConductedEmissions.......................................................................................14 3.3.RadiatedEmissions........................................................................................................15 4.ANTENNAREQUIREMENTS....................................................................................................16 5.TESTEQUIPMENTCALIBRATIONDATE...............................................................................17 6.MEASUREMENTUNCERTAINTY.............................................................................................19 7.TESTRESULT............................................................................................................................20 7.1.Summary.........................................................................................................................20 7.2.6dBBandwidthMeasurement.........................................................................................21 7.2.1.TestLimit.....................................................................................................................21 7.2.2.TestProcedureused...................................................................................................21 7.2.3.TestSetting..................................................................................................................21 7.2.4.TestSetup...................................................................................................................21 7.2.5.TestResult...................................................................................................................22 7.3.OutputPowerMeasurement...........................................................................................29 ReportNo.:S2025072297960102 PageNumber: 4 of 110 7.3.1.TestLimit.....................................................................................................................29 7.3.2.TestProcedureUsed.........................................................................…

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FangguangInspection&TestingCo.,Ltd. Tel:+86-020-38098960-6006Email:[email protected]://www.fgtest.cn TRFNo.:FG.WI-EMC-07-010(1.1) PageNumber:1of6 RFExposureEvaluationDeclaration ReportNo.:S2025072297960103 IssueDate:10-23-2025 Applicant:GUANGZHOURANTIONTECHNOLOGYCO.,LTD. Address: Room7002and7003,7thFloor,DigitalEntertainment IndustrialPark,GreaterBayArea,No.28HuangpuPark WestRoad,HuangpuDistrict,Guangzhou,China. FCCID:2AV7N-MKSERIES Product:DIGITALPIANO ModelNo.: DDP-200,DDP-200MK2,DDP-200MK3,DDP-200MK4, DDP-200MK5,DDP-200MK6,DDP-200MK7, DODN3020,DODN6671,DODN6682,DODN6683, DODN6684,DODN6685,DODN6686 TradeMark:DONNER FCCRulePart(s): CFR47,FCCPart2.1091Radiofrequencyradiation exposureevaluation:mobiledevices. ItemReceiptdate:Sep.09,2025 TestDate:Sep.16,~Oct.10,2025 Thetestresultsrelateonlytothesamplestested. Thisequipmenthasbeenshowntobecapableofcompliancewiththeapplicabletechnicalstandardsas indicatedinthemeasurementreportandwastestedinaccordancewiththemeasurementproceduresspecified inKDB558074D01.Testresultsreportedhereinrelateonlytotheitem(s)tested. ThetestreportshallnotbereproducedexceptinfullwithoutthewrittenapprovalofFangguangInspection& TestingCo.,Ltd. Thetestreportmustnotbeusedbytheclienttoclaimproductcertifications,approval,orendorsementby NVLAP,NISToranyagencyofU.S.Government. CompiledBy 检 (ChuangLi) SeniorTestEngineer ApprovedBy (LineChen) EngineerManager ReportNo.:S2025072297960103 PageNumber:2of6 RevisionHistory ReportNo.VersionDescriptionIssueDate S2025072297960103Rev.01/10-23-2025 ReportNo.:S2025072297960103 PageNumber:3of6 1.PRODUCTINFORMATION 1.1.EquipmentDescription 1.2.ProductSpecificationSubjectivetothisReport ProductName:DIGITALPIANO MainTestModel:DDP-200 AdditionalModel: DDP-200MK2,DDP-200MK3,DDP-200MK4,DDP-200MK5, DDP-200MK6,DDP-200MK7,DODN3020,DODN6671,DODN6682, DODN6683,DODN6684,DODN6685,DODN6686 ModelDescription: EUT(DIGITALPIANO)themainmodelno.DDP-200anditsadditional modelsno.DDP-200MK3,DDP-200MK4,DDP-200MK5,DDP-200 MK6,DDP-200MK7,DODN3020,DODN6671,DODN6682,DODN6683, DODN6684,DODN6685,DODN6686havethesametechnical construction-includingcircuit-diagram,PCB-LAYOUT,materialoftheshell, hardwareversionandsoftwareversionidentical,themodelnamesdifferent, whichdoesnotaffectelectromagneticcompatibilityandelectricalsafety performance.Theyonlydifferinmodelnames. TradeMark:DONNER InputVoltageRange:DC12Vbyadapter AdapterSpecifications: Model:HCX3601-1203000U Input:AC100~240V,50/60Hz1.2AMax;Output:DC12V3.0A36.0W BluetoothVersion:5.2 SoftwareVersion:V1.1 HardwareVersion:V1.1 Note: ThisinformationisprovidedbytheCustomeranditsauthentictyisthe responsibilityoftheCustomer. FrequencyRange:BT/BLE:2402~2480MHz ChannelNumber: BT:79 BLE:40 AntennaType:PCBantenna AntennaGain:4dBi TypeofModulation: BT:GFSK,Π/4DQPSK,8DPSK BLE:GFSK DataRate: BT:1Mbps(GFSK),2Mbps(Π/4DQPSK),3Mbps(8DPSK) BLE:1Mbps,2Mbps Note:/ ReportNo.:S2025072297960103 PageNumber:4of6 2.RFExposureEvaluation 2.1.Limits AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeusedtoevaluatethe environmentimpactofhumanexposuretoradiofrequency(RF)radiationasspecifiedin1.1307(b) LIMITSFORMAXIMUMPERMISSIBLEEXPOSURE(MPE) FrequencyRange (MHz) ElectricField Strength(V/m) MagneticField Strength(A/m) PowerDensity (mW/cm 2 ) AverageTime (Minutes) (A)LimitsforOccupational/ControlExposures 300-1500----f/3006 1500-100,000----56 (B)LimitsforGeneralPopulation/UncontrolledExposures 300-1500----f/15006 1500-100,000----130 f=FrequencyinMHz CalculationFormula:Pd=(Pout*G)/(4*pi*r 2 ) Where Pd=powerdensityinmW/cm 2 Pout=outputpowertoantennainmW G=gainofantennainlinearscale Pi=3.1416 r=distancebetweenobservationpointandcenteroftheradiatorincm PdisthelimitofMPE,1mW/cm².Ifweknowthemaximumgainoftheantennaandthetotalpower inputtotheantenna,throughthecalculation,wewillknowthedistancerwheretheMPElimitis reached. ReportNo.:S2025072297960103 PageNumber:5of6 2.2.TestResultofRFExposureEvaluation ProductDIGITALPIANO TestItemRFExposureEvaluation Mode Frequency (MHz) Maximum Conducted OutputPower (dBm) Antenna Gain (dBi) PG MPE (mW/cm 2 ) MPE Limits (mW/cm 2 ) (dBm)(mW) BT2402~24805.5849.589.080.00181.00 BLE2402~24804.7248.727.450.00141.00 Remark:1.MPEusedistanceis20cmfrommanufacturerdeclarationofusermanual. Remark:2.Usethemaximumgainofallbandswhenevaluating CONCULISON: TheMaxPowerDensityatR(20cm)=0.0018mW/cm 2 <1mW/cm 2 . SotheEUTcomplieswiththerequirement. ReportNo.:S2025072297960103 PageNumber:6of6 Statement 1.Thisreportisinvalidforthefollowingstates:withoutthespecialinspectionandtesting stamportheofficialstampofourinstitution;withoutthesignatureofthereport authorizedofficer;ifthereportisaltered. 2.Itisforbiddentocopypartialcontentsofthereportexceptinfullwithouttheapprovalof ourinstitution. 3.Theclientshallprovidethetestsample(s)andcommissioninformationandbe responsiblefortheirauthenticity. 4.Thereportcontentisonlyapplicabletothetestedsample(s)thistime. 5.Ifthereareanyobjectionstothereportcontent,pleasesubmitthemtoourcompanyin writingwithin15daysfromthedateofreceivingthereport. 6.IfthereportsincludebothChineseandEnglishversions,whenthereareany inconsistenciescausedbylanguage,theChineseversionshallprevail. 7.Thisreportisissuedbythefollowinglaboratorypremises: No.8NingyunRd.,XinwuDistrictWuxi,Jiangsu214000China ——Thispageisblankbelowthisline—

AttestationStatementLetterI FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Date:_2025/10/20 Ref:AttestationStatementsPart2.911(d)(5)(i)Filing FCCApplicationforFCCID:2AV7N-MKSERIEScertifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedforreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. Sincerely, Client’ssignature:________________________________ Client’sname&title:LinzhanLiang&CertificateManager Contactinformation：GUANGZHOURANTIONTECHNOLOGYCO.,LTD. Contactaddress:Room7002and7003,7thFloor,DigitalEntertainmentIndustrialPark,Greater BayArea,No.28HuangpuParkWestRoad,HuangpuDistrict,Guangzhou,China.

Label Location

1 of 6 Attachment 1： External Photo of EUT Photo 1: The whole product view Photo 2: The product view 2 of 6 Photo 3: The product view Photo 4: The product view 3 of 6 Photo 5: The product view Photo 6: The product view 4 of 6 Photo 7 The product view Photo 8: The product view 5 of 6 Photo 9: The product view Photo 10: The Interface close-up 6 of 6 Photo 11: The Interface close-up Photo 12: The power adapter view

Model-difference.statement We,GUANGZHOURANTIONTECHNOLOGYCO.,LTD.declarethatthisEUT-(DIGITALPIANO)the mainmodelno.DDP-200andthefamilymodelsno.DDP-200MK2,DDP-200MK3,DDP-200 MK4,DDP-200MK5,DDP-200MK6,DDP-200MK7,DODN3020,DODN6671,DODN6682, DODN6683,DODN6684,DODN6685,DODN6686havethesametechnicalconstruction-including circuit-diagram,PCB-LAYOUT,materialoftheshell,hardwareversionandsoftwareversion identical,themodelnamesdifferent,whichdoesnotaffectelectromagneticcompatibilityand electricalsafetyperformance. GUANGZHOURANTIONTECHNOLOGYCO.,LTD. 2025.10.15 BrandProductNameModel Differences DONNERDIGITALPIANO DDP-200 Onlydifferentmodels DDP-200MK2 DDP-200MK3 DDP-200MK4 DDP-200MK5 DDP-200MK6 DDP-200MK7 DODN3020 DODN6671 DODN6682 DODN6683 DODN6684 DODN6685 DODN6686

Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: _2AV7N-MKSERIES Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Type of Confidentiality Requested Exhibit Type ☒ Short Term ☐ Permanent Block Diagrams ☐Short Term ☐ Permanent* External Photos ☐Short Term ☐ Permanent* Internal Photos ☒ Short Term ☐Permanent Operation Description ☐Short Term ☐Permanent Parts List/BOM ☒ Short Term ☐Permanent Schematics ☐Short Term Test Setup Photos ☐Short Term ☐ Permanent* User manual *Requires further justification before permanent confidentiality will be allowed. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Permanent Confidentiality: The applicant requests the exhibits listed above as permanently confidential be withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Short-Term Confidentiality: Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, we also request temporary confidential treatment of information accompanying this application as outlined below for an initial period of ___180__ days. Sincerely, Client’s signature: ___ _____________________________ Client’s name & title: Lin zhan Liang & Certificate Manager Contact information ： GUANGZHOU RANTION TECHNOLOGY CO.,LTD. Contact address: Room 7002 and 7003,7th Floor,Digital Entertainment Industrial Park,Greater BayArea,No.28Huangpu Park West Road,Huangpu District,Guangzhou,China.

FCCAgentAuthorizationLetter FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Date:2025/10/21______________ SUBJECT:FCCApplicationforFCCID:2AV7N-MKSERIES ToWhomItMayConcern: We,theundersigned,herebyauthorize Xiaozhenfen in GRGMetrology&TestGroupCo.,Ltd. onourbehalf,toapplytotheFederalCommunicationsCommissionforourequipment.Anyand allactscarriedoutby__ GRGMetrology&TestGroupCo.,Ltd. _onourbehalfshallhavethe sameeffectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct.We,theapplicant, arenotsubjecttoadenialoffederalbenefitspursuanttoSection5301oftheAnti-DrugActof 1988,21USC853a,andnopartytotheapplicationissubjecttoadenialoffederalbenefits pursuanttothatsection. Sincerely, Client’ssignature:________________________________ Client’sname&title:LinzhanLiang&CertificateManager Contactinformation：GUANGZHOURANTIONTECHNOLOGYCO.,LTD. Contactaddress:Room7002and7003,7thFloor,Dig…

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