2AZJD-B9B9 Bluetooth headset

Overview of button functions Wearing instruction Bone conduction wireless headset Bone conduction wireless headset As shawn,hang the earphones behind your neck while the speaker is attached to the cheekbones in front of your ears,rather than on your ears. Charging method Use a standard Micro USB charging cable (included with the package) to connect the headset to your personal computer or USB charger You can charge it. It can be fully charged in about 2.5 hours. When charging, the LED indicator is red, and the red light is off. note: 1. Because the battery may lose power during storage, it is recommended to charge the headset before using it for the first time. 2. The headset cannot be used during charging. 3. If not used for a long time, it is recommended to charge it once a month to maintain battery life. 4. If the headset is not connected for more than 5 minutes, the headset will automatically shut down. 5. Recommended charger specifications, output voltage: DC5V +/- 0.25V, output current: 100mA-500mA Charger and battery Charger and battery Before using any charger to charge the headset, please check whether the specifications of the charger meet the requirements (recommended charger the output voltage is: DC5V +/- 0.25V, the output current is: 100mA-500mA),the charging voltage is extremely high and it is possible.Can damage Bluetooth headset. WARNING: Only use chargers approved with this accessory. Use of other types of chargers may violate approval and warranty terms, and may cause danger, if the factory is shipped with a charging cable, you need to connect a 3C certifie Charger or computer. It is forbidden to severely collide with this product. Serious impact may damage the electronic motherboard and battery. Charge the battery This headset uses a built-in non-removable rechargeable battery. Do not attempt to remove the battery from the headset, as it may damage the headset.When you are not using the headset, store it in a dry and ventilated place and charge it every two months. 1.When the connected headset flashes red and you hear a low battery sound, it means that the headset is low on power. If you continue to work it will automatically shut down. At this time, you need to charge. Plug the charger's cable into the headphone jack. 2.Plug the charger into an AC power outlet. 3.The red indicator light is on when charging. If charging does not start, disconnect the power supply from the headset, then plug it back into the headset and try again. When the battery is fully charged, the red light goes out and the blue light is always on. At this time, disconnect the charger from the power socket and headphones. 4.When the battery is fully charged, it can provide a standard time of about 5 hours and 10 days standby time. However, the actual call time and standby time may be different from that of the mobile phone, usage settings, usage methods and environment. Basic information Basic operating function Basic Information Brand / Model B9 Appearance size 135x93x48mm(reference) Equipment weight 33g Appearance matching Black / Gray Waterproof grade Hardware parameters Film set Main chip Qualcomm V5.0 BT chip Frequency interruptionISM Band(2.402-2.480GHZ) Transmitting power Class2 (-6dbm-4dbm) Maximum output power8mW Rated output power 5mW antenna Bluetooth distance 8~10M Bluetooth antennaBuilt-in Physical buttons 2 One (left and right buttons) link Bluetooth protocolA2DPv1.3 AVRCPv1.6 HFPv1.7 HSPv1.2 SPPv1.2 SPPv1.2 Bluetooth version BT V5.0 Acoustic MIC MIC 4015 Strong anti-interference zone MICSet -42dB±3dB horn Bone conduction horn，Sensitivity 88+/-3db power supply Battery type Rechargeable polymer lithium battery capacity 180mAh working voltage 3.7V input voltage DC-5V 1.1A Charging time 2.5h Standby time 10Days Play time 5h interfaceUSBUSB Charging Cable Structural parameter shell Upper shell Injection PC+ABS Spray paint Lower shell Horn coverSilica gel Headband Memory wire Memory wire (nickel-titanium alloy wire) ● First boot pairing: In the off state, press and hold the right button for 3 seconds, the headset will flash blue and red alternately. At this time, the headset enters the automatic Bluetooth pairing mode. The headset prompts music and is equipped with a voice prompt "Powering up". Open the smart device such as a mobile phone, find "B9" from the Bluetooth list, and click Connect. After confirming the connection, the headset voice prompts "Bluetooth Paired Successfully". ● Boot headset: In the off state, press and hold the right button for 3 seconds, the blue light is on, and the “Powering up” prompt sounds, the headset automatically enters the Bluetooth connection mode, and the headset will automatically connect to the confirmed smart device with a prompt "Bluetooth Paired Successfully". ● Turn off the headset: In the power-on state, press and hold the right button for 3 seconds until you see a red light flashing, accompanied by a “Bluetooth is preparing to Shut down” prompt. ● Answer the call: When a call comes in, click the left or right button to complete the answer. ● Hang up the phone: During the call, click the left or right button to complete the answer. ● Rejected call: When a call comes in, press and hold the left or right button for 2 seconds to complete the rejection. ● Disconnect and reconnect: The headset is disconnected from the phone, and a “Beep”prompt sounds. At this time, you can reconnect the phone with a short press of the on / off key, accompanied by a “Bluetooth Paired Successfully ”prompt. ● Chinese and English switching: Bluetooth search status, press the left and right buttons together immediately. When the prompt tone "beep" is heard, the switch is successful. ● Play music: When in standby, click the left and right buttons to operate the player on the phone. ● Music pause: When playing music, click the left and right buttons to operate the player on the phone. ● Volume Plus Double-click the right button in the music and call state, the volume will be…

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Modeldifferencedeclarationletter DifferencesDescription WeShenzhenDeShiIndustrialCo.,Ltd.state: Product：B9Bluetoothheadset ModelNameB9,E9,C9,D9 Theaboveproductwithsamecircuit,PCBlayout,electricalparts,materialsand wiringstructures,Appearanceshape,thematerialsofdecorativeaccessoriesis same,onlydifferentcolor, Signatory Date:04-07-2021 <Signature> Name：LiJinzhi Title：Manager Company：ShenzhenDeShiIndustrialCo.,Ltd. Address:Room311,3rdFloor,FactoryNo.23,YangmeiRoad,YangmeiCommunity,BantianStreet, LonggangDistrict,Shenzhen

C5266091_X8_Ed.1 1/1 LetterofAuthorization ShenzhenDeShiIndustrialCo.,Ltd. Company:ShenzhenDeShiIndustrialCo.,Ltd. Address:Room311,3rdFloor,FactoryNo.23,YangmeiRoad,Yangmei Community,BantianStreet,LonggangDistrict,Shenzhen ProductName:B9Bluetoothheadset ModelNumber:B9,E9,C9,D9 FCCIdentifier:2AZJD-B9 WeauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdelCarme,s/n, 08193Bellaterra,Spain,toactonourbehalfonallmattersconcerningthe abovenamedequipment. AnyindividualwithinLGAITechnologicalCenterS.A.isauthorizedtoactonour behalfandtakeactionontheapplication. WedeclarethatauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdel Carme,s/n,08193Bellaterra,Spain,isallowedtoforwardallinformation relatedtotheapprovalprojecttotheFederalCommunicationCommissionand todiscussanyissuesconcerningtheapprovalapplication.Anyandallacts carriedoutbyLGAITechnologicalCenterS.A.onourbehalfshallhavethe sameeffectasactsofourown. Name:LiJinzhiDate:April07,2021 Title:Manager Signatureofapplicant:

C5266091_X10_Ed.2 1/1 ShenzhenDeShiIndustrialCo.,Ltd. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:April07,2021 Subject:RequestforConfidentiality FCCID:2AZJD-B9 ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality NOTE2 IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo ☐ BlockDiagram ☒☐ Schematics ☒☐ TestReportNoNo TestSetupPhotosNo ☐ User’sManual ☐ NOTE 1 ☐ InternalPhotos ☐ NOTE 1 ☐ PartsList/TuneUp ☐☐ RFExposureInfoNoNo OperationalDescription ☒☐ CoverLetter(s)NoNo SDRSoftware/SecurityInfo ☐ No NOTE1:Long-TermConfidentialitymaybepermittedunderspecialconditions(SeeII.LONG-TERMCONFIDENTIALITY,Section3of KDB726920,uselastinforce) NOTE2:Short-TermConfidentialitycanberequestedforamaximumof180daysfromthedateofthegrant. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Incaseofshort-termConfidentiality,theapplicantrequeststheexhibitsselected abovearewithheldfrompublicviewforaperiodof______daysfromthedateofthe GrantofEquipmentAuthorizationandpriortomarketing. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name:LiJinzhi Title:Manager

Page1of3ReportNo.:FCS202103057 Externalphotos Photo1 Photo2 Page2of3ReportNo.:FCS202103057 Photo3 Photo4 Page3of3ReportNo.:FCS202103057 Photo5 Photo6

LabelandLabelLocation FCCID:2AZJD-B9 L*W:10mm*7mm whitefontonaBlacklabel

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FCCTestReport ReportNo:FCS202103057W01 Issuedfor Applicant: ShenzhenDeShiIndustrialCo.,Ltd. Address: Room311,3rdFloor,FactoryNo.23,YangmeiRoad, YangmeiCommunity,BantianStreet,LonggangDistrict, Shenzhen ProductName: B9Bluetoothheadset BrandName: N/A ModelName: B9 SeriesModel: E9,C9,D9 FCCID: 2AZJD-B9 IssuedBy:FluxComplianceServiceLaboratory Add:Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-Tech Industrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com Page2of33ReportNo.:FCS202103057W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com TESTRESULTCERTIFICATION Applicant’sName......................:ShenzhenDeShiIndustrialCo.,Ltd. Address......................................: Room311,3rdFloor,FactoryNo.23,YangmeiRoad,Yangmei Community,BantianStreet,LonggangDistrict,Shenzhen Manufacture'sName ................ :ShenzhenDeShiIndustrialCo.,Ltd. Address ...................................... : Room311,3rdFloor,FactoryNo.23,YangmeiRoad,Yangmei Community,BantianStreet,LonggangDistrict,Shenzhen ProductDescription ProductName ........................... :B9Bluetoothheadset BrandName.............................:N/A ModelName .............................. :B9 SeriesModel..............................:E9,C9,D9 TestStandards .......................... :FCCRulesandRegulationsPart15SubpartC,Section249 TestProcedure..........................:ANSIC63.10:2013 ThisdevicedescribedabovehasbeentestedFCS,thetestresultsshowthattheequipmentundertest (EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofFCS,thisdocument maybealteredorrevisedbyFCS,personalonly,andshallbenotedintherevisionofthedocument.. DateofTest..................................: Date(s)ofperformanceoftests.:19Mar,2021~29Mar,2021 DateofIssue.................................:29Mar,2021 TestResult.....................................:Pass Testedby: (ScottShen) Reviewedby : (DukeQian) Approvedby: (KaitChen) Page3of33ReportNo.:FCS202103057W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com TableofContentsPage 1.SUMMARYOFTESTRESULTS5 1.1TESTFACTORY6 1.2MEASUREMENTUNCERTAINTY6 2.GENERALINFORMATION7 2.1GENERALDESCRIPTIONOFTHEEUT7 2.2DESCRIPTIONOFTHETESTMODES9 2.3DESCRIPTIONOFNECESSARYACCESSORIESANDSUPPORTUNITS10 2.4EQUIPMENTSLIST11 3CONDUCTEDEMISSIONMEASUREMENT12 3.1LIMIT12 3.2TESTPROCEDURE12 3.3TESTSETUP13 3.4TESTRESULTS14 4.RADIATEDEMISSIONMEASUREMENT16 4.1LIMIT16 4.2TESTPROCEDURE17 4.3TESTSETUP18 4.4TESTRESULTS19 5.BANDEDGETEST25 5.1LIMIT25 5.2TESTPROCEDURE25 5.3TESTSETUP26 5.4TESTRESULTS27 6.20DBBANDWIDTHTEST30 6.1LIMIT30 6.2TESTPROCEDURE30 6.3TESTSETUP30 6.4TESTRESULTS31 7.ANTENNAREQUIREMENT33 7.1STANDARDREQUIREMENT33 7.2EUTANTENNA33 Page4of33ReportNo.:FCS202103057W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com RevisionHistory Rev.IssueDateEffectPageContents 0029Mar,2021AllInitialIssue Page5of33ReportNo.:FCS202103057W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com 1.SUMMARYOFTESTRESULTS FCCPart15.249,SubpartC Standard Section TestItemJudgmentRemark 15.207ConductedEmissionPASS-- 15.205(a),15.209(a), 15.249(a),15.249(c) RadiatedSpuriousEmissionPASS-- 15.209FieldstrengthoffundamentalPASS 15.249(d)BandEdgeEmissionPASS-- 15.215(c)20dBBandwidthPASS-- 15.203AntennaRequirementPASS-- NOTE: (1)”N/A”denotestestisnotapplicableinthisTestReport (2)AlltestsareaccordingtoANSIC63.10-2013 Page6of33ReportNo.:FCS202103057W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com 1.1TESTFACTORY CompanyName:FluxComplianceServiceLaboratory Address: Room105FloorBaohaoTechnologyBuilding1NO.15Gongye WestRoadHi-TechIndustrial,SongshanlakeDongguan Telephone:+86-769-27280901 Fax:+86-769-27280901 FCCTestFirmRegistrationNumber:514908 Designationnumber:CN0127 A2LAaccreditationnumber：5545.01 1.2MEASUREMENTUNCERTAINTY Thereporteduncertaintyofmeasurementy±U,whereexpendeduncertaintyUisbasedona standarduncertaintymultipliedbyacoveragefactorofk=2,providingalevelofconfidenceof approximately95%. No.ItemUncertainty 1RFoutputpower,conducted±0.71dB 2UnwantedEmissions,conducted±2.98dB 3ConductedEmission(9KHz-150KHz) ±4.13dB 4ConductedEmission(150KHz-30MHz) ±4.74dB 5Allemissions,radiated(<1G)30MHz-1000MHz ±3.2dB 6Allemissions,radiated(1GHz-18GHz) ±3.66dB 7Allemissions,radiated(18GHz-40GHz) ±4.31dB Page7of33ReportNo.:FCS202103057W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechIndustrial,SongshanlakeDongguan Tel:769-27280901Fax:769-27280901http://www.fcs-lab.com 2.GENERALINFORMATION 2.1GENERALDESCRIPTIONOFTHEEUT ProductNameB9Bluetoothheadset TradeNameN/A ModelNameB9 SeriesModelE9,C9,D9 ModelDifference Theaboveproductwithsamecircuit,PCBlayout, electricalparts,materialsandwiringstructures, Appearanceshape,thematerialsofdecorative accessoriesissame,onlydifferentcolor. ChannelList PleaserefertotheNote2. BT Frequency:2402-2480MHz Modulation:GFSK Datarate:1Mbps Channelnumber:79CH PowerSupplyDC5V,1.1A HardwareversionnumberV1.0 SoftwareversionnumberV1.0 ConnectingI/OPort(s)PleaserefertotheUser'sManual Note: 1. Foramoredetailedfeaturesdescription,pleaserefertothemanufacturer’sspecifications ortheUser'sManual. Page8of33ReportNo.:FCS202103057W01 FluxComplianceServiceLaboratory Room105FloorBaohaoTechnologyBuilding1NO.15GongyeWestRoadHi-TechInd…

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Page 1 of1ReportNo.:FCS202103057 Above1GHzforradiatedemissiontestsetup Blow1GHzforradiatedemissiontestsetup