2BFQJ-845BTCeiling speaker

1. It is recommended that you keep this manual for future reference (when installing audio). 2. Never expose the stereo in the rain or in any wet or wet place, which may cause electric shock or fire. 3. Limit the voltage specified in the audio. If higher voltage is used, it may cause electric shock orfire. Never trim, twist, destroy or replace wires. 4. Avoid installing or erecting audio in unstable places, such as shaking tables or uneven surfaces, so as to avoid personal injury or property loss when the audio falls. 5. Installing the strereo at a place that can support the weight of the stereo or on a stable shelf can avoid personal injury or propert loss caused by the sound falling. 7. When pulling out the plug, please make sure to pull the plug, not the wire. Using machines with broken electrical appliances may cause fire or electric shock. 8. When moving the stereo, please unplug it in advance. Moving the stereo with the plug may cause fire 9. Do not cover the vent on the stereo, which may cause internal heating and fire. 10. Avoid installing the stereo in damp or dusty places, in direct contact with sunlight, near electric heaters, or where there is black smoke or steam, which may cause fire or electric shock. 6. Never insert or unplug the plug with wet hands, which may cause electric shock. or electric shock. When pulling out the plug, make sure that it is pulled out by holding the plug. Safety
instruction Technical reference 40-20KHZ 92dB 10-100W 1KG Frequency response Sensitivity Recommended power Opening size weight 145mm(418BT) 185mm(518BT,528BT,558BT) 165mm(628BT,645BT,845BT) 205mm(618BT,818BT) BLUETOOTH CEILINGSPEAKER USB PRODUCT MANUAL 4-inch series/5-inch series/6-inch series/8-inch series 128克，铜版纸，双面印，对折，5000份 82.00 mm 1 2 0 . 0 0 m m Sound line 5m USB extension cable Rterminal is connected with red wire. 220V AC Schematic diagram of system connection (Optional panel) Positive/negative Wall control panel 5-meter audio line (Optional) (Optional) GND terminal is connected with black wire. L terminal is connected with white wire. Type 86 standard bottom boX is embedded with a depth of 250 mm. 220V Wire Auxiliary ceiling horn USB port Main ceiling horn External sound input port Horn connector Dcpower supply wheel Function instruction 1: The speaker is powrered on automatically, and there will be a voice prompt after it is turmed on. 2: Two playback modes: Bluetooth playback and voice input AUX. 3: No password is required to connect but if you are prompted enter'6688' 4: Support APP to change Bluetooth name and password, adjust the total volume and switch modes. 吸顶蓝牙说明书 FCC Caution: 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.To maintain compliance with FCCs RF Exposure guidelines, This equipment should be installed and operated with minimum distance between 20cm the radiator your body: Use only the supplied antenna.

LocalRepresentativeLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(7),oftheCommission’sRules(47C.F.R.)weattestasfollowsfor theproductlistedbelow: FCCIDModelname 2BFQJ-845BT845BT Weherebyacknowledgeasfollows: i.bothsigneesconfirmthatthepointofcontactacceptsresponsibilitytoactasaUS- AmericanRepresentativeonbehalfoftheapplicant ii.thepointofcontactprovidesthephysicalU.S.addressandemailaslistedbelow iii.bothpartiesmaintaintherequirementsofthisagreementwithoutexpirationdate US-AmericanPointofContactApplicant/ApprovalHolder SignatureSignature CompanyName:LOBOSIOWAINCDongyangHaiqiangElectronics Co.,Ltd FRN:00364139610035251313 ContactName:HarleyLiKaiqiangMa Address:4623BittercreekDrColorado SpringsCO80922US No.67JiciRoad,Hengdian IndustryZone,DongyangCity, Zhejiang,China Phone:+18188180538-- Email:[email protected]@dy-hq.com

CoveredEquipmentCertificationAttestationLetter 2026-3-2 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA ATTN.:ReviewingEngineer FCCID:2BFQJ-845BT DongyangHaiqiangElectronicsCo.,Ltd.(“theapplicant”)certifiesthattheequipmentfor whichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivingan equipmentauthorizationpursuanttosection2.903oftheFCCrules. Note:Iftheequipmentforwhichtheapplicantseeksauthorizationisproducedby anyoftheentitiesidentifiedonthecurrentCoveredList,theapplicantshould includeanexplanationonwhytheequipmentisnot“covered”equipment. DongyangHaiqiangElectronicsCo.,Ltd.(“theapplicant”)certifiesthat,asofthedateof thefilingoftheapplication,theapplicantisnotidentifiedontheCoveredListasanentity producing“covered”equipment. DongyangHaiqiangElectronicsCo.,Ltd.(“theapplicant”)certifiesthattheequipmentfor whichauthorizationissoughtdoesnotincludecybersecurityoranti-virussoftware producedorprovidedbyKasperskyLab,Inc.oranyofitssuccessorsandassignees, includingequipmentwithintegratedKasperskyLab,Inc.(oranyofitssuccessorsand assignees)cybersecurityoranti-virussoftwarepursuanttoDA-24-886andKDB986446 D01 CoveredEquipmentGuidancesectionB(2a). Signed: Printedname:KaiqiangMa Title:Sales CompanyName:DongyangHaiqiangElectronicsCo.,Ltd. Date:2026-3-2

2026-3-2 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeShenzhenBangceTestingTechnologyCo.,Ltd.toacton ourbehalfinallmattersrelatingtoapplicationforequipmentauthorization,includingthesigningofall documentsrelatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothedenialof benefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988,21 U.S.C.853(a). Sincerely, Name:KaiqiangMa Title:Sales Company:DongyangHaiqiangElectronicsCo.,Ltd.

2026-3-2 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2BFQJ-845BT ProductName:Ceilingspeaker RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommission’srules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: (Listherethedocumentsforwhichyouareseekingconfidentiality–forexample...) Schematics Blockdiagram  Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. Name:KaiqiangMa Title:Sales Company:DongyangHaiqiangElectronicsCo.,Ltd.

ReportNo.:CISRR26020302201 Page 60 of 63 9.EXTERNALANDINTERNALPHOTOS 9.1.ExternalPhotos ReportNo.:CISRR26020302201 Page 61 of 63

Label Size:20mm*6mm FCCID:2BFQJ-845BT LabelLocation

ReportNo.:CISRR26020302201 Page 62 of 63 9.2.InternalPhotos ReportNo.:CISRR26020302201 Page 63 of 63 ------Endofthereport----- ANT

ReportNo.:CISRR26020302202 Reporttemplateversion:CISE-TR-001-A0Page:1of5 TESTREPORT RFExposureEvaluation ReportNo.CISRR26020302202 ProjectNo.CISR260203022 FCCID2BFQJ-845BT ApplicantDongyangHaiqiangElectronicsCo.,Ltd AddressNo.67JiciRoad,HengdianIndustryZone,DongyangCity,Zhejiang,China ManufacturerDongyangHaiqiangElectronicsCo.,Ltd AddressNo.67JiciRoad,HengdianIndustryZone,DongyangCity,Zhejiang,China ProductNameCeilingspeaker Trademark- Model/Typereference845BT ListedModel(s)- Standard 47CFRPart2.1093 DateofsamplereceiptFebruary5,2026 TestdateFebruary5,2026toFebruary9,2026 IssuedateFebruary24,2026 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangceTesting TechnologyCo.,Ltd. ReportNo.:CISRR26020302202 Reporttemplateversion:CISE-TR-001-A0Page:2of5 1.APPLICABLESTANDARD 47CFRPart2.1093:Radiofrequencyradiationexposureevaluation:portabledevices ANSIC95.1–3999:IEEEStandardforSafetyLevelswithRespecttoHumanExposuretoRadioFrequency ElectromagneticFields,3kHzto300GHz. FCCKDBpublication447498D01GeneralRFExposureGuidancev06:MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. 47CFRPart1.1307:Actionsthatmayhaveasignificantenvironmentaleffect,forwhichEnvironmental Assessments(EAs)mustbeprepared. 2.REPORTVERSION VersionNo.IssuedateDescription 00February24,2026Original ReportNo.:CISRR26020302202 Reporttemplateversion:CISE-TR-001-A0Page:3of5 3.RADIOSPECIFICATIONDESCRIPTION Bluetooth Supportedtype:BREDRLE-1Mbps LE-2Mbps Note:PleaserefertoRFreportfordetailedtechnicalspecifications 4.SIMULTANEOUSTRANSMISSIONANALYSIS ThedevicesuseasingletransmittermoduleandantennaforBluetooth,cannottransmitsimultaneously. ReportNo.:CISRR26020302202 Reporttemplateversion:CISE-TR-001-A0Page:4of5 5.TESTRESULT 5.1.Standalonetransmission Limit: KDB447498D01v06,Clause4.3.1a) For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-g SARtestexclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]*[√f(GHz)]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation31The resultisroundedtoonedecimalplaceforcomparison Thevalues3.0and7.5arereferredtoasnumericthresholdsinstepb)below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mm, andfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmaccordingto4.1f)isappliedtodetermine SARtestexclusion. Result: Passed TestData Radiotype Frequency (GHz) Maximum output power #1 (dBm) Antenna gain #2 (dBi) Maximum EIRP #3 (dBm) Maximum tune-up EIRP #4 (dBm) Minimum distance (mm) Evaluated value LimitResult BR&EDR2.4020.62-0.580.041.005.000.39023.00PASS Note #1:ThisvaluecomesfromtheRFtestreport. #2:Thisvalueisdeclaredbytheapplicant. #3:EIRP=Maximumoutputpower+Antennagain. #4:Thisvalueisdeclaredbytheapplicant. ReportNo.:CISRR26020302202 Reporttemplateversion:CISE-TR-001-A0Page:5of5 5.2.Simultaneoustransmission Limit: KDB447498D01v06,Clause4.3.2,47CFRPart1.1307 InthecaseofxedRFsourcesoperatinginthesametime-averagingperiod,orof multiplemobileorportableRFsourceswithinadeviceoperatinginthesametime averagingperiod,ifthesumofthefractionalcontributionstotheapplicablethresholds islessthanorequalto1asindicatedinthefollowingequation. Where a=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(B)ofthissectionforP,includingexistingexempttransmittersandthosebeing added. b=numberoffxed,mobile,orportableRFsourcesclaimingexemptionusingparagraph (b)(3)(i)(C)ofthissectionforThresholdERP,includingexistingexempttransmittersand thosebeingadded. c=numberofexistingfixed,mobile,orportableRFsourceswithknownevaluationforthespeci edminimumdistanceincludingexistingevaluatedtransmitters. P j =theavailablemaximumtime-averagedpowerortheERP,whicheverisgreater,forxed, mobile,orportableRFsourceiatadistancebetween0.5cmand40cm(inclusive). P th,j =theexemptionthresholdpower(P)accordingtoparagraph(b)(3)(i)(B)ofthissectionfor xed,mobile,orportableRFsourcei. ERP j =theERPoffixed,mobile,orportableRFsourcej. ERP th,j =exemptionthresholdERPforfixed,mobile,orportableRFsourcej,atadistanceofat leastλ/2πaccordingtotheapplicableformulaofparagraph(b)(3)(i)(C)ofthissection. Evaluated k =themaximumreportedSARorMPEoffixed,mobile,orportableRFsourcekeither inthedeviceoratthetransmittersitefromanexistingevaluationatthelocationofexposure. ExposureLimit k =eitherthegeneralpopulation/uncontrolledmaximumpermissibleexposure (MPE)orspecicabsorptionrate(SAR)limitforeachxed,mobile,orportableRFsourcek, asapplicablefrom§1.1310ofthischapter. Result:NotApplicable --------EndofReport--------

ReportNo.:CISRR26020302201 Thetestresultsrelateonlytothetestedsamples. ThetestreportshouldnotbereproducedexceptinfullwithoutthewrittenapprovalofShenzhenBangce TestingTechnologyCo.,Ltd. Page1of56 TESTREPORT ReportNo.CISRR26020302201 ProjectNo.CISR260203022 FCCID2BFQJ-845BT ApplicantDongyangHaiqiangElectronicsCo.,Ltd AddressNo.67JiciRoad,HengdianIndustryZone,DongyangCity,Zhejiang,China ManufacturerDongyangHaiqiangElectronicsCo.,Ltd AddressNo.67JiciRoad,HengdianIndustryZone,DongyangCity,Zhejiang,China ProductNameCeilingspeaker Trademark- Model/Typereference845BT ListedModel(s)- Standard 47CFRPart15.247 DateofsamplereceiptFebruary5,2026 TestdateFebruary5,2026toFebruary9,2026 IssuedateFebruary24,2026 TestresultComplied Reviewedby:LucasHuang Approvedby:HansHu ReportNo.:CISRR26020302201 Page 2 of 56 Contents 1.STANDARDANDAPPLICABLETESTMETHODS........................................................................................3 2.REPORTVERSION..........................................................................................................................................3 3.TESTDESCRIPTION.......................................................................................................................................4 4.SUMMARY........................................................................................................................................................5 4.1.ProductDescription*..................................................................................................................................5 4.2.RadioSpecificationDescription*..............................................................................................................5 4.3.ModificationofEUT.....................................................................................................................................6 4.4.Deviationfromstandards...........................................................................................................................6 4.5.TestingSite...................................................................................................................................................6 5.TESTCONFIGURATION.................................................................................................................................7 5.1.Testfrequencylist.......................................................................................................................................7 5.2.Descriptionsoftestmode...........................................................................................................................7 5.3.Testsampleinformation.............................................................................................................................7 5.4.Environmentalconditions...........................................................................................................................7 5.5.Statementofthemeasurementuncertainty.............................................................................................7 5.6.EquipmentUsedduringtheTest................................................................................................................8 6.TESTRESULTS.............................................................................................................................................10 6.1.EvaluationResults(Evaluation)...............................................................................................................10 6.1.1.AntennaRequirement............................................................................................................................10 6.2.RadioSpectrumMatterTestResults(RF)...............................................................................................11 6.2.1.ConductedEmissionatACpowerline.................................................................................................11 6.2.2.20dBBandwidth......................................................................................................................................14 6.2.3.MaximumConductedOutputPower.....................................................................................................16 6.2.4.ChannelSeparation................................................................................................................................17 6.2.5.NumberofHoppingFrequencies..........................................................................................................18 6.2.6.DwellTime...............................................................................................................................................19 6.2.7.Conductedbandedgeandspuriousemission...................................................................................21 6.2.8.Radiatedbandedgeemission...............................................................................................................23 6.2.9.RadiatedSpuriousEmission(below1GHz).........................................................................................29 6.2.10.RadiatedSpuriousEmission(Above1GHz)......................................................................................33 7.APPENDIXREPORT......................................................................................................................................41 7.1.ConductedOutputPower.........................................................................................................................41 7.2.20dBBandwidth.........................................................................................................................................44 7.3.NumberOfHoppingChannel...................................................................................................................46 7.4.CarrierFrequenciesSeparation...............................................................................................................47 7.5.DutyCycle....…

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Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT Horizontal Vertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 MAX. Gain -0.58dBi 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) AddressNo.333,Kexing Road,Nanping Town,Zhuhai,Guangdong,China Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dBi) 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(dBi) 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.

ReportNo.:CISRR26020302201 Page 58 of 63 8.TESTSETUPPHOTOS ConductedEmissionatACpowerline Radiatedbandedgeemission RadiatedSpuriousEmission(Above1GHz) ReportNo.:CISRR26020302201 Page 59 of 63 RadiatedSpuriousEmission(below1GHz)