2BHS4-BY51Tabletop microphone

1 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

ShenzhenBaibangCloudInformationTechnologyCo.,Ltd 2.911(d)(5)(i)EquipmentTypeAttestationv1.2 Section2.911(d)(5)(i)Certification–EquipmentType Companyname:ShenzhenBaibangCloudInformationTechnologyCo.,Ltd Address:504,Building3,MantingfangGarden,PinghuStreet,LonggangDistrict,ShenzhenChina ProductName:Tabletopmicrophone FCCID:2BHS4-BY51 Model(s):BY51,BY20,BY21,BY30,BY31,BY40,BY41,BY50 2.911(d)(5)(i)EquipmentType We,[ShenzhenBaibangCloudInformationTechnologyCo.,Ltd](“theapplicant”)certifythatthe equipmentforwhichauthorizationissoughtthroughcertificationisnot: Prohibitedfromreceivinganequipmentauthorizationpursuantto§2.903;oftheFCCrules. Identifiedasanequipmenttypeinthe“CoveredList” NOTE1 Yourssincerely, Name:wuyangpingDate:2024.7.23 TitleandCompanyname:Manager/ShenzhenBaibangCloudInformationTechnologyCo.,Ltd NOTE1 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

ShenzhenBaibangCloudInformationTechnologyCo.,Ltd 2.911(d)(5)(ii)ApplicantAttestationv1.3 Section2.911(d)(5)(ii)Certification–Applicant(CoveredList) Companyname:ShenzhenBaibangCloudInformationTechnologyCo.,Ltd Address:504,Building3,MantingfangGarden,PinghuStreet,LonggangDistrict,ShenzhenChina ProductName:Tabletopmicrophone FCCID:2BHS4-BY51 Model(s):BY51,BY20,BY21,BY30,BY31,BY40,BY41,BY50 2.911(d)(5)(ii)Applicantfiling We,[ShenzhenBaibangCloudInformationTechnologyCo.,Ltd](“theapplicant”)certifythat,asof thedateofthefilingoftheapplication,theapplicantisnotidentified NOTE1 onthe“CoveredList” NOTE 2 ,establishedpursuantto§1.50002ofthischapter,asanentityproducingcoveredcommunications equipment. Yourssincerely, Name:wuyangpingDate:2024.7.23 TitleandCompanyname:Manager/ShenzhenBaibangCloudInformationTechnologyCo.,Ltd NOTE1 Deleteoptionnotapplicabletothisapplication. NOTE2 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

ShenzhenBaibangCloudInformationTechnologyCo.,Ltd AgentAuthorization Company:ShenzhenBaibangCloudInformationTechnologyCo.,Ltd Address:504,Building3,MantingfangGarden,PinghuStreet,LonggangDistrict, ShenzhenChina ProductName:Tabletopmicrophone ModelNumber(s):BY51,BY20,BY21,BY30,BY31,BY40,BY41,BY50 ProductDescription:Tabletopmicrophone WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2024.7.23 Name:wuyangping Title:Manager Company:ShenzhenBaibangCloudInformationTechnologyCo.,Ltd

ShenzhenBaibangCloudInformationTechnologyCo.,Ltd OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2024.7.23 Subject;RequestforConfidentiality FCCID:2BHS4-BY51 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:wuyangping Title:Manager

ShenzhenBaibangCloudInformationTechnologyCo.,Ltd ModelDifference Productdescription:Tabletopmicrophone Modelname:BY51 BY20,BY21,BY30,BY31,BY40,BY41,BY50 TradeName:N/A Onlyfordifferentmodelname Regards Sincerely Client’ssignature: Client’sname/title:wuyangping/Manager Contactinformation/address:504,Building3,MantingfangGarden,PinghuStreet, LonggangDistrict,Shenzhen

EUTPHOTO(ExternalPhotos) ※※※※※ENDOFREPORT※※※※※

Labelandlabellocation 2cm Tabletopmicrophone FCCID:2BHS4-BY51 1cm

EUTPHOTO(InternalPhotos) ANT ※※※※※ENDOFREPORT※※※※※

FCCID:2BHS4-BY51 RFExposureEvaluation AccordingtoWS-1GeneralRFExposureGuidancev06andpart2.1093 ， Unless specificallyrequiredbythepublishedRFexposureKDBprocedures,standalone1-ghead orbodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions,by measurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARTest ExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f (GHz) ]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, ForBT TestMode Max Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit GFSK3.2682.12240250.657833.0 π/4-DQPSK3.9612.49240250.771643.0 8-DPSK4.2992.69240250.834103.0 SoaSARtestisnotrequired

Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT Horizontal Vertical 2400MHz 2450MHz2500MHz2400MHz2450MHz 2500MHz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 MAX. Gain -0.58dB Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD 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 -0.585582 -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.:ZKT-2407097933E Page 1 of 71 FCCTESTREPORT FCCID:2BHS4-BY51 ReportNumber...................................: ZKT-2407097933E DateofTest......................................................:Jul.09,2024toJul.16,2024 Dateofissue ......................................... :Jul.16,2024 Totalnumberofpages.........................71 TestResult .......................................... : PASS TestingLaboratory. .......................... : ShenzhenZKTTechnologyCo.,Ltd. Address ............................................... : 1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China Applicant'sname ............................. :ShenzhenBaibangCloudInformationTechnologyCo.,Ltd Address...............................................: 504,Building3,MantingfangGarden,PinghuStreet,Longgang District,Shenzhen Manufacturer'sname......................:ShenzhenBaibangCloudInformationTechnologyCo.,Ltd Address ............................................... : 504,Building3,MantingfangGarden,PinghuStreet,Longgang District,Shenzhen Testspecification: Standard ................................................ : FCCCFRTitle47Part15SubpartCSection15.247 ANSIC63.10:2013 Testprocedure ..................................... : / Non-standardtestmethod ................ :N/A TestReportFormNo. ....................... : TRF-EL-112_V0 TestReportForm(s)Originator.....: ZKTTesting MasterTRF........................................: Dated:2021-04-22 ThisdevicedescribedabovehasbeentestedbyZKT,andthetestresultsshowthattheequipmentunder test(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZKT,thisdocumentmay bealteredorrevisedbyZKT,personalonly,andshallbenotedintherevisionofthedocument. Productname ..................................... :Tabletopmicrophone Trademark...........................................:N/A Model/Typereference ......................... : BY51 BY20,BY21,BY30,BY31,BY40,BY41,BY50 Ratings..................................................: Input:5V3A,9V3A,12V3A,15V3A,20V3A Output:20V3A(60WMax) Battery:3.7V,1100mAh,4.07Wh , ProjectNo.:ZKT-2407097933E Page 2 of 71 Testingprocedureandtestinglocation: TestingLaboratory .......................................... :ShenzhenZKTTechnologyCo.,Ltd. Address............................................................:1/F,No.101,BuildingB,No.6,TangweiCommunity IndustrialAvenue,FuhaiStreet,Bao'anDistrict, Shenzhen,China JimLiu Testedby(name+signature) ....................... : JacksonFang Reviewer(name+signature) ....................... : LakeXie Approved(name+signature).......................: ProjectNo.:ZKT-2407097933E Page 3 of 71 TableofContents Page 1.VERSION..................................................................................................................................5 2.TESTSUMMARY...................................................................................................................6 2.1TESTFACILITY.........................................................................................................................7 2.2MEASUREMENTUNCERTAINTY......................................................................................7 3.1GENERALDESCRIPTIONOFEUT...................................................................................8 3.2TestSetupConfiguration......................................................................................................10 3.3SupportEquipment.................................................................................................................10 4.EMCEMISSIONTEST........................................................................................................13 4.1Conductedemissions............................................................................................................13 4.1.1POWERLINECONDUCTEDEMISSIONLimits.......................................................13 4.1.2TESTPROCEDURE..........................................................................................................13 4.1.3DEVIATIONFROMTESTSTANDARD.......................................................................13 4.1.4TESTSETUP.......................................................................................................................13 4.1.5EUTOPERATINGCONDITIONS..................................................................................14 4.1.6TestResult............................................................................................................................15 4.2Radiatedemissions................................................................................................................17 4.2.1RadiatedEmissionLimits.................................................................................................17 4.2.2TESTPROCEDURE..........................................................................................................17 4.2.3DEVIATIONFROMTESTSTANDARD.......................................................................18 4.2.4TESTSETUP.......................................................................................................................18 4.2.5EUTOPERATINGCONDITIONS..................................................................................19 4.2.6TESTRESULTS..................................................................................................................19 5.RADIATEDBANDEMISSIONMEASUREMENT........................................................28 5.1TestRequirement:..................................................................................................................28 5.2TESTPROCEDURE..............................................................................................................28 5.3DEVIATIONFROMTESTSTANDARD...........................................................................29 5.…

Text truncated - open the document above for the full version.

EUTTESTPHOTO ※※※※※ENDOFREPORT※※※※※