2BUXD-SW123Wireless Boombox Speaker

INWINC CoveredEquipmentCertificationAttestationLetter 03/17/2026 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA ATTN.:ReviewingEngineer FCCID:2BUXD-SW123 INWINC(“theapplicant”)certifiesthattheequipmentforwhichauthorizationissoughtis not“covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuant tosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. INWINC(“theapplicant”)certifiesthat,asofthedateofthefilingoftheapplication,the applicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofits subsidiariesoraffiliates)asanentityproducing“covered”equipment. INWINC(“theapplicant”)certifiesthattheequipmentforwhichauthorizationissought doesnotincludecybersecurityoranti-virussoftwareproducedorprovidedby KasperskyLab,Inc.oranyofitssuccessorsandassignees,includingequipmentwith integratedKasperskyLab,Inc.(oranyofitssuccessorsandassignees)cybersecurityor anti-virussoftwarepursuanttoDA-24-886andKDB986446D01CoveredEquipment GuidancesectionB(2a). Signed: Printedname:KhalidAldajani Title:President CompanyName:INWINC Date:03/17/2026

INWINC * theapplicantmustdesignateacontactlocatedintheUnitedStatesforpurposesofactingasthe applicant’sagentforserviceofprocess,regardlessofwhethertheapplicantisadomesticorforeign entity.AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforserviceofprocess. U.S.AgentDesignationforServiceofProcess- CertificationAttestationLetter 03/17/2026 TO:FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 ATTN.:ReviewingEngineer FCCID:2BUXD-SW123 FRNofapplicant:0037859881 Persection2.911(d)(7)oftheFCCrules,[INWINC](“theapplicant”)certifiesthattheequipment forwhichauthorizationissoughtisdesignatedtothefollowingU.S.agent*forserviceof process: CompanyName:INWINC FCCRegistrationNumber(FRN):0037859881 PhysicalU.S.CompanyAddress:5700StoneridgeMallRoad,Suite160,Pleasanton,California, UnitedStates94588 ContactPerson:KhalidAldajani AgentEmailAddress:[email protected] Theabovecontactpersonacceptstheobligationforserviceofprocess. Theapplicantacceptstomaintainanagentfornolessthanoneyearafterthegranteehas terminatedallmarketingandimportationortheconclusionofanyCommission-related proceedinginvolvingtheequipment. ApplicantSigned:AgentSigned(ifdifferentfromApplicant): Signed: Printedname:KhalidAldajani Title:President CompanyName:INWINC Date:03/17/2026 Signed: Printedname:KhalidAldajani Title:President CompanyName:INWINC Date:03/17/2026

DATE:03/17/2026 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 AuthoritytoActasAgent Onourbehalf,IappointShenzhenEUTestingLaboratoryLimited (101,BuildingB1,FuqiaoFourthArea,QiaotouCommunityFuhaiSubdistrictBaoan District,Shenzhen,China)(NameofAgentcompanynameandaddress)toactasour agentinthepreparationofthisapplicationforequipmentcertification.Icertifythat submitteddocumentsproperlydescribethedeviceorsystemforwhichequipment certificationissought.Ialsocertifythateachunitmanufactured,importedormarketed,as definedintheFederalCommunicationsCommission’sregulationswillhaveaffixedtoita labelidenticaltothatsubmittedforapprovalwiththisapplication. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonour behalf,Iacknowledgethatallresponsibilityforcomplyingwiththetermsandconditions forcertification,stillresideswithINWINC(5700StoneridgeMallRoad,Suite160, Pleasanton,California,UnitedStates94588)(ApplicantNameandaddress) Signed: Printedname:KhalidAldajani Title:President CompanyName:INWINC Date:03/17/2026

Date03/17/2026 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeComplianceTesting,LLCtoactonourbehalfinallmatters relatingtoapplicationforequipmentauthorization,includingthesigningofalldocumentsrelatingto thesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothedenialof benefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988,21 U.S.C.853(a). Sincerely, Signed: Printedname:KhalidAldajani Title:President CompanyName:INWINC Date:03/17/2026

DATE03/17/2026 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:___2BUXD-SW123______ ProductName:___WirelessBoomboxSpeaker___ RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommission’srules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: (Listherethedocumentsforwhichyouareseekingconfidentiality–forexample...)  Schematics Blockdiagram Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. Signed: Printedname:KhalidAldajani Title:President CompanyName:INWINC Date:03/17/2026

DATE:03/17/2026 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2BUXD-SW123 ProductName:WirelessBoomboxSpeaker RequestforShort-TermConfidentiality PursuanttoSections0.457and0.459ofthecommissionrules,andinaccordancewiththeFCCPublicnotice datedJune15,2004(DA04-1705),weherebyrequestshort-termconfidentialityforthefollowingitemspriorto marketingthedevice.: TestSetupPhotos ExternalPhotos InternalPhotos UserManual Theapplicantrequeststheexhibitsselectedaboveasshorttermconfidentialbewithheldfrompublicview foraperiodof180daysfromthedateoftheGrantofEquipmentAuthorizationandpriortomarketing.This istoavoidprematurereleaseofsensitiveinformationpriortomarketingorreleaseoftheproducttothe public. Signed: Printedname:KhalidAldajani Title:President CompanyName:INWINC Date:03/17/2026

LabelLocation Label Size:25*25mm ProductName:WirelessBoomboxSpeaker ModelNo.:SW123 FCCID:2BUXD-SW123

RFEXPOSUREEVALUATION FCCID:2BUXD-SW123 AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeused toevaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF) RadiationasspecifiedinKDB447498D01: RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,using measurementsorcomputersimulation.WhenroutineSARevaluationisnot required,portabletransmitterswithoutputpowergreaterthantheapplicable lowthresholdrequireSARevaluationtoqualifyforTCBapproval. BT: Channel (MHz) Maximum outputpower (dBm) Tuneup tolerance (dBm) MaxTune UpPower (dBm) Distance (mm) Calculation results Limit Operating Mode 2402-1.77 -1.77±1 -0.7750.2603 BT 2441-2.35-2.35±1-1.3550.2293 2480-1.83-1.83±1-0.8350.2603 24020.72 0.72±1 1.7250.4613 24410.070.07±11.0750.4003 24800.640.64±11.6450.4593 TestResults:PASS.

TEST REPORT Report No.:8427EU121603W Applicant:INW INC Address:5700 Stoneridge Mall Road, Suite 160, Pleasanton, California, United States 94588 Product Name:Wireless Boombox Speaker Model No.:SW123 Trademark:N/A FCC ID:2BUXD-SW123 Test Standard(s):47 CFR Part 15.247 Test Result:Pass Date of Receipt:Jan. 16, 2026 Test Date:Jan. 19, 2026 - Jan. 27, 2026 Date of Issue:Mar. 16, 2026 ISSUED BY: SHENZHEN EU TESTING LABORATORY LIMITED Prepared by:Reviewed and Approved by: Landon Qiu/ EngineerSally Zhang/ Manager Page 2 of 91Report No.: 8427EU121603W TRF Version: A01 Revision Record Report VersionIssued DateDescriptionStatus V0Mar. 16, 2026OriginalValid Page 3 of 91Report No.: 8427EU121603W TRF Version: A01 Table of Contents 1 COVER PAGE...................................................................................................................................................1 2 GENERAL INFORMATION........................................................................................................................5 2.1 APPLICANTINFORMATION...................................................................................................................5 2.2 MANUFACTURERINFORMATION...........................................................................................................5 2.3 FACTORYINFORMATION......................................................................................................................5 2.4 GENERALDESCRIPTION OFE.U.T...................................................................................................... 5 2.5 TECHNICALINFORMATION OFE.U.T....................................................................................................6 3 TEST SUMMARY.......................................................................................................................................7 3.1 TESTSTANDARD................................................................................................................................7 3.2 TESTVERDICT................................................................................................................................... 7 3.3 TESTLABORATORY............................................................................................................................8 4 TEST CONFIGURATION...........................................................................................................................9 4.1 TESTENVIRONMENT...........................................................................................................................9 4.2 TESTEQUIPMENT...............................................................................................................................9 4.3 DESCRIPTION OFSUPPORTUNIT...................................................................................................... 11 4.4 TESTMODE..................................................................................................................................... 11 4.5 DESCRIPTION OFCALCULATION........................................................................................................11 4.5.1 Field Strength Calculation..................................................................................................11 4.5.2 Disturbance Calculation..................................................................................................... 11 4.6 MEASUREMENTUNCERTAINTY..........................................................................................................12 4.7 DEVIATION FROMSTANDARDS.......................................................................................................... 12 4.8 ABNORMALITIES FROMSTANDARDCONDITION..................................................................................12 5 EVALUATION RESULTS (EVALUATION).............................................................................................. 13 5.1 ANTENNA REQUIREMENT.................................................................................................................. 13 5.1.1 Test Specification...............................................................................................................13 5.1.2 Test Data............................................................................................................................13 6 RADIO SPECTRUM MATTER TEST RESULTS (RF)............................................................................ 14 6.1 CONDUCTEDEMISSION ATACPOWER LINE...................................................................................... 14 6.1.1 Test Specification...............................................................................................................14 6.1.2 E.U.T. Operation.................................................................................................................14 6.1.3 Test Setup Diagram........................................................................................................... 14 6.1.4 Test Data............................................................................................................................14 6.2 20DB BANDWIDTH........................................................................................................................... 17 6.2.1 Test Specification...............................................................................................................17 6.2.2 E.U.T. Operation.................................................................................................................17 6.2.3 Test Setup Diagram........................................................................................................... 18 6.2.4 Test Data............................................................................................................................18 6.3 MAXIMUMCONDUCTEDOUTPUTPOWER...........................................................................................…

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

Name:Shenzhen Yuhao Senda Technology Co., LTD Company address:3rd Floor, Building 4,Xiyuantong Industrial Park, Zikeng Village,Shiyan Street, Bao'an District, Shenzhen City, Guangdong Province,China. dBidBi dBi dBidBidBi RUAN JIANMING 24502450 dBi dBi dBidBi dBi dBi dBi dBi dBi dBi dBi dBi dBi dBi dBi dBidBi dBi