2BGGM-GS-B25Bluetooth audio

Stereo Connect 85 Product name: Bluetooth audio Model: GS-B25

ShenzhenHuamingYuTechnologyCo.,LTD Address：2019,Floor2,Building409,SundaindustrialZone,LicunCommunity,Futian, District,Shenzhen,China Date:2024-09-13 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsPart2.911(d)(7)Filing SUBJECT:FCCApplicationforFCCID:2BGGM-GS-B25 FRN:0035434364 (“ShenzhenHuamingYuTechnologyCo.,LTD”)certifiesthat,asofthedateofthefilingofthe application,GSSSERVICEINCisourdesignatedU.S.agentforserviceofprocessforthe abovereferencedFCCID.(“ShenzhenHuamingYuTechnologyCo.,LTD”)acceptsto maintainanagentfornolessthanoneyearafterthegranteehasterminatedallmarketing andimportationortheconclusionofanyCommission-relatedproceedinginvolvingthe equipment. GSSSERVICEINCaccepts,asofthedateofthefilingoftheapplication,theobligationofthe designatedU.S.agentforserviceofprocessfortheabovereferencedFCCID. DesignatedU.S.AgentInformation: Name:GSSSERVICEINC Address:6547NAcademyBlvd#2266ColoradoSpringsCOLORADO80918UnitedStates FRN：0033402082 ContactPerson:MichouxLogan Tel.:001-949-2990192 Email:[email protected] Sincerely, Signedonbehalfof（ShenzhenHuaming YuTechnologyCo.,LTD） SignedonbehalfofGSSSERVICEINC Name:MingpengGuoName:MichouxLogan Title:generalmanagerTitle:Manager Date:2024-09-13Date:2024-09-13

(ShenzhenHuamingYuTechnologyCo.,LTD) FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA Date:2024-09-13 FCCID:2BGGM-GS-B25 Ref.#1:AttestationStatementsPart2.911(d)(5)(i)Filing (“ShenzhenHuamingYuTechnologyCo.,LTD”)certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. Ref.#2:AttestationStatementsPart2.911(d)(5)(ii)Filing (“ShenzhenHuamingYuTechnologyCo.,LTD”)certifiesthat,asofthedateofthe filingoftheapplication,theapplicantisnotidentifiedontheCoveredListasanentity producing“covered”equipment. Applicant:ShenzhenHuamingYuTechnologyCo.,LTD Address:2019,Floor2,Building409,SundaindustrialZone,LicunCommunity,Futian, District,Shenzhen,China ContactPerson:MingpengGuo Tel.:+8615815143966 Email:[email protected] Sincerely, Signature:

SPECIFICATIONS Frequency（MHz）2400-2480 PeakGain（dBi）2.499 AverageGain（dBi）＞-4 VSWR＜3.2 Impedance（Ω）50Ω AntennaTypePlannarInvertedFAntennaonboard PolarizationLinear Z X Y Frequency（MHz）Gain（dBi）Effciency（%）AverageGain（dBi）Efficiency（dB） 24001.43359.329%-2.717-2.267 24100.92751.861%-3.416-2.852 24200.82952.112%-3.166-2.831 24300.88149.299%-3.258-3.072 24401.19250.672%-3.144-2.952 24501.68853.067%-2.735-2.752 24602.19459.423%-2.276-2.260 24702.11856.680%-2.438-2.466 24802.49961.727%-2.112-2.095 Average1.52954.908%-2.806-2.616 Peak2.49961.727%-2.112-2.095 2440MHz2D-ThetaPattern 2440MHz2D-PhiPattern 2440MHz3D-HorizontalPattern 2440MHz3D-VerticalPattern 2440MHz3D-TotalPattern

ShenzhenHuamingYuTechnologyCo.,LTD Date：2024-09-13 ProductModelNumber:GS-B25, GS-B26,GS-B27,GS-B28,GS-B29,M8 Towhomitmayconcern, Re:ProductCertificationRepresentativeAuthorizationLetter WeauthorizeQAILaboratoriesLtd.3980NorthFraserWay,BurnabyB.C. CanadaV5J5K5toactonourbehalfonallmattersconcerningtheabove namedequipment. Thisshallincludethefollowing: Testing Approvalapplicationsandprocedures WedeclarethatORGANIZATION.isallowedtoforwardallinformation relatedtotheapprovalprojecttotheappliedcertificationbodyandtothe notificationentitiesandtodiscussanyissuesconcerningtheapproval application.AnyandallactscarriedoutbyORGANIZATION.onourbehalf shallhavethesameeffectasactsofourown. By: ContactListedonFCCWesbite Title:generalmanager Email:[email protected] Telephone:+8615815143966 Onbehalfof:ShenzhenHuamingYuTechnologyCo.,LTD

ShenzhenHuamingYuTechnologyCo.,LTD OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:September13,2024 Subject;RequestforConfidentiality FCCID:2BGGM-GS-B25 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthese documentsmightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantage inthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure SoftwareSecurityRequirementsforUNIIdevices 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:MingpengGuo Title:generalmanager

ShenzhenHuamingYuTechnologyCo.,LTD ModelDifference Productdescription:Bluetoothaudio Modelname:GS-B25, GS-B26,GS-B27,GS-B28,GS-B29,M8 FCCID:2BGGM-GS-B25 GS-B25istestedmodel,othermodelsarederivativemodels.Themodelsareidenticalin circuit,onlydifferentonthemodelnamesandcolorsandpatterns.Sothetestdataof GS-B25canrepresenttheremainingmodels. Client’ssignature: Client’sname/title:MingpengGuo/generalmanager Contactinformation/address:2019,Floor2,Building409,SundaindustrialZone,Licun Community,Futian,District,Shenzhen,China

FCCID:2BGGM-GS-B25 EUTPHOTOS(ExternalPhotos) FCCID:2BGGM-GS-B25 FCCID:2BGGM-GS-B25 FCCID:2BGGM-GS-B25 ※※※※※ENDOFREPORT※※※※※

Size:2mmX9mm FCCID:2BGGM-GS-B25

FCCID:2BGGM-GS-B25 EUTPHOTOS(InternalPhotos) FCCID:2BGGM-GS-B25 FCCID:2BGGM-GS-B25 ANT FCCID:2BGGM-GS-B25 ※※※※※ENDOFREPORT※※※※※

· FCCID:2BGGM-GS-B25 RFExposureEvaluation AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1093，Unless specificallyrequiredbythepublishedRFexposureKDBprocedures,standalone1-gheador bodyand10-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, ForBluetooth Mode Max Power (dBm) Tune-up power (dBm) Max Power (mW) Frequency(MHz) Min. Distance (mm) Calc. thresholds limit BR/EDR -2.11 -2±1 0.7924415 0.247 3.0 SoaSARtestisnotrequired

Project No.: 240912L11557E Page 1 of 99 FCC TEST REPORT FCC ID:2BGGM-GS-B25 Report Number. .............................. : 240912L11557E Date of Test ..................................... .: Aug. 30, 2024 to Sept. 09, 2024 Date of issue..................................... : Sept. 09, 2024 Test Result ...................................... : PASS Testing Laboratory. ........................ : Shenzhen ZKT Technology Co., Ltd. Address ........................................... : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Applicant's name .......................... : Shenzhen Huaming Yu Technology Co., LTD Address ........................................... : 2019,Floor 2,Building 409,Sunda industrial Zone, Licun Community,Futian, District,Shenzhen,China Manufacturer's name .................... : Shenzhen Huaming Yu Technology Co., LTD Address ........................................... : 2019,Floor 2,Building 409,Sunda industrial Zone, Licun Community,Futian, District,Shenzhen,China Test specification: Standard ........................................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 Test procedure .................................. : KDB558074 D01 15.247 Meas Guidance v05r02 ANSI C63.10:2013 Non-standard test method .............. : N/A This device described above has been tested by ZKT, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of ZKT, this document may be altered or revised by ZKT, personal only, and shall be noted in the revision of the document. Product name ................................. : Bluetooth audio Trademark ...................................... : / Model/Type reference ....................... : GS-B25, GS-B26, GS-B27, GS-B28, GS-B29, M8 Model Difference..............................: GS-B25 is tested model, other models are derivative models .The models are identical in circuit, only different on the model names and colors and patterns. So the test data of GS-B25 can represent the remaining models. Ratings ............................................. : Input: DC 5V or DC 3.7V powered by battery Project No.: 240912L11557E Page 2 of 99 Testing procedure and testing location: Testing Laboratory ..................................... : Shenzhen ZKT Technology Co., Ltd. Address ...................................................... : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Alen He Tested by (name + signature) .................... : Joe Liu Reviewer (name + signature) ..................... : Lake Xie Approved (name + signature) .................... : Project No.: 240912L11557E Page 3 of 99 Table of Contents Page 2.1 TEST FACILITY ............................................................................................................................... 7 2.2 MEASUREMENT UNCERTAINTY .................................................................................................. 7 3. GENERAL INFORMATION ............................................................................................................... 8 3.1 GENERAL DESCRIPTION OF EUT ................................................................................................ 8 3.3 Support Equipment ........................................................................................................................ 10 3.4 Test Mode ...................................................................................................................................... 10 3.5 EQUIPMENTS LIST FOR ALL TEST ITEMS ................................................................................ 11 4. EMC EMISSION TEST .................................................................................................................... 13 4.1 Conducted emissions .................................................................................................................... 13 4.1.1 POWER LINE CONDUCTED EMISSION Limits ........................................................................ 13 4.1.2 TEST PROCEDURE ................................................................................................................... 13 4.1.3 DEVIATION FROM TEST STANDARD ...................................................................................... 13 4.1.4 TEST SETUP .............................................................................................................................. 14 4.1.5 EUT OPERATING CONDITIONS ............................................................................................... 14 4.1.6 TEST RESULTS ......................................................................................................................... 14 4.2 Radiated emissions........................................................................................................................ 17 4.2.1 Radiated Emission Limits ........................................................................................................... 17 4.2.2 TEST PROCEDURE ................................................................................................................... 17 4.2.3 DEVIATION FROM TEST STANDARD ...................................................................................... 18 4.2.4 TEST SETUP .............................................................................................................................. 18 4.2.5 EUT OPERATING CONDITIONS ............................................................................................... 19 4.2.6 TEST RESULTS ......................................................................................................................... 20 5.1 Test …

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

FCCID:2BGGM-GS-B25 EUTTESTPHOTOS FCCID:2BGGM-GS-B25 ※※※※※ENDOFREPORT※※※※※