2AO47-KM104Microphone Speaker

MI-KM105 MI-KM105 FCC Warning 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.

- Shenzhen Kingstar Industrial Co LTD - Federal Communications Commission Authorization and Evaluation Div ision Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 6/20/23 U.S. Aqent Desiqnation Name and company of U.S. agent: Linkwld LLC Physical U.S. address of agent: 1942 Broadway St. STE 314C, Boulder, CO, 80302, US FRN of U.S. agent: 0033625682 Email address of U.S. agent: Shenzhen Kingstar Industrial Co LTD acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought ( FCC ID:2AO47-KM105 ) [email protected] Linkwld LLC acknowledges their obligation to accept service of process on behalf of Shenzhen Kingstar Industrial Co LTD. Shenzhen Kingstar Industrial Co LTD with the FRN [002729 1459] accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under§ 2.911 (d)(7). Sincerely, Signature [Name]Samuel 纺 邓扎 订it l e]sales [Company]Shenzhen Kingstar Industrial Co LTD 寸 OA 0 ' n ,(L)(P)l l6 · nu�av - sn亏powrs 寸 飞十多巳 Signature [Name of U.S. agent] Timothy Zhu [T八le of U.S. agent]Manager [Company of U.S. agent] Linkwld LLC The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 DOI. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB

ShenzhenKingstarIndustrialCo.,Ltd. TheinformationprovidedinthisletterisbasedonthereferencedrulepartsofTitle47oftheCFRaswellasKDB986446D01. FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 10/23/23 Towhomitmayconcern: We,[ShenzhenKingstarIndustrialCo.,Ltd.],herebycertifythattheequipmentforwhichauthorization issought(FCCID:[2AO47-KM104])isnot“covered”equipmentprohibitedfromreceivingan equipmentauthorizationpursuantto§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 GangLiu Manager ShenzhenKingstarIndustrialCo.,Ltd. 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.:18220WC302042Page1of4 Code:AB-RF-05-b AppendixII--ExternalPhotograph ProjectNo.:18220WC302042Page2of4 Code:AB-RF-05-b ProjectNo.:18220WC302042Page3of4 Code:AB-RF-05-b ProjectNo.:18220WC302042Page4of4 Code:AB-RF-05-b

LabelLocationOnEUT Label ProductName:MicrophoneSpeaker ModelNo.:MI-KM105 FCCID:2AO47-KM105

ProjectNo.:18220WC302042Page1of3 Code:AB-RF-05-b AppendixIII--InternalPhotograph ProjectNo.:18220WC302042Page2of3 Code:AB-RF-05-b BT-TX-ANTBT-RX-ANT ProjectNo.:18220WC302042Page3of3 Code:AB-RF-05-b

RFEXPOSUREEVALUATION FCCID:2AO47-KM104 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 24023.013.01 ±1 4.01050.7803 GFSK 24412.642.64 ±1 3.64050.7223 24802.142.14±13.14050.6493 24023.773.77 ±1 4.77050.9303 π/4-DQPSK 24413.463.46 ±1 4.46050.8733 24802.972.97±13.97050.7863 24022.742.74 ±1 3.74050.7333 8DPSK 24413.703.70 ±1 4.70050.9223 24803.203.20±14.20050.8283 Result:NoStandaloneSARtestisrequired.

Page1of52 AppendixTestData ReportNo.:18220WC30204201TestSampleNo.:1-2-2 StartTestDate:2023.09.19FinishTestDate:2023.09.21 TestEngineer:Auditor: Temperature:25.4 °C RelativeHumidity:48.3% Pressure:102kPa AppendixA:20dBEmissionBandwidth TestResult TestModeAntennaFrequency[MHz] 20db EBW[MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict DH5Ant1 24021.0652401.4602402.525------ 24411.0502440.4752441.525------ 24801.0772479.4542480.531------ 2DH5Ant1 24021.3652401.3312402.696------ 24411.3412440.3402441.681------ 24801.3442479.3282480.672------ 3DH5Ant1 24021.3052401.3552402.660------ 24411.3442440.3222441.666------ 24801.2992479.3552480.654------ 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]Limit[MHz]Verdict DH5Ant1 24020.950892401.52442402.4753------ 24410.977092440.51042441.4875------ 24800.983282479.51232480.4956------ 2DH5Ant1 24021.24072401.39092402.6316------ 24411.24362440.39102441.6346------ 24801.24872479.38932480.6380------ 3DH5Ant1 24021.22372401.38762402.6113------ 24411.23942440.37812441.6175------ 24801.23222479.38392480.6161------ 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 Test Mode AntennaFrequency[MHz] ConductedPeak Power[dBm] Conducted Limit[dBm] Verdict DH5Ant1 24023.01≤20.97PASS 24412.64≤20.97PASS 24802.14≤20.97PASS 2DH5Ant1 24023.77≤20.97PASS 24413.46≤20.97PASS 24802.97≤20.97PASS 3DH5Ant1 24022.74≤20.97PASS 24413.70≤20.97PASS 24803.20≤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 DH5Ant1Hop1.010≥0.718PASS 2DH5Ant1Hop0.994≥0.910PASS 3DH5Ant1Hop0.986≥0.896PASS 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 DH1Ant1Hop0.3753150.118≤0.4PASS DH3Ant1Hop1.6301680.274≤0.4PASS DH5Ant1Hop2.8791080.311≤0.4PASS 2DH1Ant1Hop0.3853180.122≤0.4PASS 2DH3Ant1Hop1.6371550.254≤0.4PASS 2DH5Ant1Hop2.8841050.303≤0.4PASS 3DH1Ant1Hop0.3853190.123≤0.4PASS 3DH3Ant1Hop1.6351620.265≤0.4PASS 3DH5Ant1Hop2.8871080.312≤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 Low24022.35-47.05≤-17.65PASS High24801.40-47.73≤-18.6PASS LowHop_24022.57-47.12≤-17.43PASS HighHop_24801.80-49.17≤-18.2PASS 2DH5Ant1 Low24021.43-48.35≤-18.57PASS High24801.51-51≤-18.49PASS LowHop_2402-0.96-47.9≤-20.96PASS HighHop_24800.90-50.76≤-19.1PASS 3DH5Ant1 Low24020.21-49.48≤-19.79PASS High2480-0.42-48.13≤-20.42PASS LowHop_24021.60-48.07≤-18.4PASS HighHop_24801.76-49.45≤-18.24PASS 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 Reference2.162.16---PASS 30~10002.16-57.72≤-17.84PASS 1000~265002.16-43.26≤-17.84PASS 2441 Reference1.881.88---PASS 30~10001.88-58.9≤-18.12PASS 1000~265001.88-46.71≤-18.12PASS 2480 Reference1.211.21---PASS 30~10001.21-59.17≤-18.79PASS 1000~265001.21-45.65≤-18.79PASS 2DH5Ant1 2402 Reference0.980.98---PASS 30~10000.98-58.47≤-19.02PASS 1000~265000.98-44.41≤-19.02PASS 2441 Reference1.751.75---PASS 30~10001.75-53.92≤-18.25PASS 1000~265001.75-49.07≤-18.25PASS 2480 Reference-2.07-2.07---PASS 30~1000-2.07-55.74≤-22.07PASS 1000~26500-2.07-48.77≤-22.07PASS 3DH5Ant1 2402 Reference1.291.29---PASS 30~10001.29-55.6≤-18.71PASS 1000~265001.29-48.85≤-18.71PASS 2441 Reference1.111.11---PASS 30~10001.11-58.33≤-18.89PASS 1000~265001.11-46.07≤-18.89PASS 2480 Reference-1.79-1.79---PASS 30~1000-1.79-57.66≤-21.79PASS 1000~26500-1.79-46.46≤-21.79PASS 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 24022.883.7576.801.15 24412…

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ReportNo.:18220WC30204201FCCID:2AO47-KM104Page1of33 Code:AB-RF-05-b FCCTestReport Applicant:ShenzhenKingstarIndustrialCo.,Ltd. Address: Room211,MinLetechnologyBuilding MeibanRoad,LongHuaDistrict,Shenzhen, China ProductName:MicrophoneSpeaker ReportDate:Oct.23,2023 ShenzhenAnbotekComplianceLaboratoryLimited ReportNo.:18220WC30204201FCCID:2AO47-KM104Page2of33 Code:AB-RF-05-b Contents 1.GeneralInformation ............................................................................................................................................6 1.1.ClientInformation ....................................................................................................................................6 1.2.DescriptionofDevice(EUT) ..................................................................................................................6 1.3.AuxiliaryEquipmentUsedDuringTest ................................................................................................7 1.4.DescriptionofTestConfiguration ..........................................................................................................7 1.5.DescriptionOfTestSetup ......................................................................................................................8 1.6.TestEquipmentList .................................................................................................................................9 1.7.MeasurementUncertainty ....................................................................................................................10 1.8.DescriptionofTestFacility ...................................................................................................................10 2.SummaryofTestResults ................................................................................................................................12 3.ConductedEmissionTest ................................................................................................................................13 3.1.TestStandardandLimit .......................................................................................................................13 3.2.TestSetup ...............................................................................................................................................13 3.3.TestProcedure .......................................................................................................................................13 3.4.TestData .................................................................................................................................................13 4.RadiationSpuriousEmissionandBandEdge .............................................................................................16 4.1.TestStandardandLimit .......................................................................................................................16 4.2.TestSetup ...............................................................................................................................................16 4.3.TestProcedure .......................................................................................................................................16 4.4.TestData .................................................................................................................................................18 5.MaximumPeakOutputPowerTest ...............................................................................................................26 5.1.TestStandardandLimit .......................................................................................................................26 5.2.TestSetup ...............................................................................................................................................26 5.3.TestProcedure .......................................................................................................................................26 5.4.TestData .................................................................................................................................................26 6.20DBOccupyBandwidthTest ........................................................................................................................27 6.1.TestStandard .........................................................................................................................................27 6.2.TestSetup ...............................................................................................................................................27 6.3.TestProcedure .......................................................................................................................................27 6.4.TestData .................................................................................................................................................27 7.CarrierFrequencySeparationTest ................................................................................................................28 7.1.TestStandardandLimit .......................................................................................................................28 7.2.TestSetup ...............................................................................................................................................28 7.3.TestProcedure .......................................................................................................................................28 7.4.TestData .................................................................................................................................................28 8.NumberofHoppingChannelTest ..................................................................................................................29 8.1.TestStandardandLimit ...............................................................................................…

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version01 ShenzhenKingstarIndustrialCo.,Ltd. DeclarationconcerningAntennaSpecification Itisherebydeclaredthattheproduct ModelNo.:MI-KM105 FCCID:2AO47-KM104 fulfillstherequirementinFCCtestrelatingtotheantennatype. ThedevicespecifiedaboveconfirmstotheFCCrecommendationsforinternalantennatype(s) describedbelow: ModelNo.ofantenna:2.4GANT-KM105 Typeofantenna:PCBantenna Gainoftheantenna:-0.68dBi Frequencyrange:2400-2500MHz Themountingoftheantennaisfixedtotheradiomoduleandnootherantennashouldbeused. Companyname: ShenzhenKingstarIndustrialCo.,Ltd. Address:Room211,MinLetechnologyBuildingMeibanRoad,LongHuaDistrict, Shenzhen,China City: Shenzhen ZIP/Postalcode:/ Country:China Place:ShenzhenDate:10/23/2023 Signature:

Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT-KM105 Horizontal Vertical 2400MHz 2450MHz2500MHz2400MHz2450MHz 2500MHz Center Frequency -1.26 -0.76 -0.68 -5.25 -2.46 -1.86 MAX. Gain -0.68dBi Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Antenna Photo & Length (mm) 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 -0.685582 -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.

ProjectNo.:18220WC302042Page1of2 Code:AB-RF-05-b AppendixI--TestSetupPhotograph ConductedEmissionatACpowerline PhotoofRadiationEmissionTest(below1GHz) ProjectNo.:18220WC302042Page2of2 Code:AB-RF-05-b PhotoofRadiationEmissionTest(above1GHz)