A8I-BACKPACK-MDivoom-Backpack-M with Bluetooth

ShenzhenDivoom TechnologyCo.,LTD. FCCConfidentialityRequest (Permanentoralsocalledlongtermconfidentialityisthenormalmethodtokeepcertaindocuementsconfidential,andmayapplyto schematics,blockdiagrams,operationaldescriptionandbillofmaterials.) To:FederalCommunicationsCommission EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 Pursuantto47CFRSection0.457(d)(2)&0.459,we, (theapplicant/grantee) CompanynameShenzhenDivoomTechnologyCo.,LTD. Address1stfloor,5thBuilding,XinlianheIndustrialPark,JinchengRoad,ShajingTown,Bao'an Cityshenzhen Countrychina requestforthiscertificationfilingunder: GranteeCodeProductNumber FCCID:A8I-BACKPACK-M tomaintainpermanentconfidentialityforthefollowingdocumentssubmittedwithinthisapplication: (pleasecrosswhatisapplicable,oraddotherdocuments,providethefilenameanddescription) ExhibitFileNameDescription √ OperationalDescriptionOperationalDescriptionexplainingthefunctioningoftheblockdiagram √ BlockDiagramsBlockDiagramsshowingthesystematicbuildingblocksoftheEUT √ SchematicsDiagramsSchematicsshowingcomponents,theirvaluesandinterconnection BillofMaterialsListofcomponentsusedonthePCB’softheEUT Abovematerialscrossedcontainsecrets,proprietaryandtechnicalinformation,whichwouldcustomarilybeguardedfrom competitorsunder47CFR,section0.457(d)(2).Disclosureorpublicationoranyportionofthiscompanyconfidentialmaterial tootherpartiescouldcausesubstantialcompetitiveharmandprovideunjustifiedbenefitsforcompetitors.Weunderstandthat pursuantto47CFRsection0.457(d)(1)(ii)disclosureoftheapplicantandallaccompanyingdocumentationwillnotbemade beforethedateofthegrant.Thedocumentsindicatedasconfidentialabove,arenotpubliclyavailableelsewhere. Attestation: CityandCountry:Date:Name: (thismustbeaperson) Function:Signature: (orofficialcompanystamp) shenzhen,china2021-04-07JefferyYaoSalesManager

ShenzhenDivoomTechnologyCo.,LTD. PowerofAttorney To:PhoenixTestlabGmbH Nameormodeltypeof theSpecifiedRadioEquipment:Divoom-Backpack-M Model:Divoom-Backpack-M Applicant’scompanyname:ShenzhenDivoomTechnologyCo.,LTD. Applicant’scompanyaddress:1stfloor,5thBuilding,XinlianheIndustrialParkJinchengRoad, ShajingTown,Bao'an,Shenzhen,China518000 Applicant’sname:JefferyYao DateandApplicant’sSignature: 2021-04-07 JobTitleandDepartment:SalesManager Itisnecessary,thatthepresidentorCEOoftheapplicant’scompanysignsthisform. Iherebyauthorizethefollowingpersonasarepresentativeandallrightsregardingtheapplicationto obtainTypeCertificationfortheSpecifiedRadioEquipment(mentionedabove)aredelegated. Attorney’sCompanyname:ShenzhenAnbotekComplianceLaboratoryLimited. Attorney’sCompanyaddress:1/F,BuildingD,SogoodScienceandTechnologyPark,Sanwei community,HangchengStreet,Bao'anDistrict,Shenzhen,Guangdong,China.518102 Attorney’sName:TomChen DateandAttorney’sSignature:...............2021-04-07 JobTitleandDepartment:Manager(EngineeringDepartment)

FCCID:A8I-BACKPACK-M

LabelLocationOnEUT ProductName:Divoom-Backpack-M ModelNumber:Divoom-Backpack-M Trademark:Divoom-Backpack-M FCCID:A8I-BACKPACK-M ThisdevicecomplieswithPart15oftheFCCRules.Operationis subjecttothefollowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)Thisdevicemustacceptanyinterferencereceived,including interferencethatmaycauseundesiredoperation. Size：60mm*40mm

FCCID:A8I-BACKPACK-M ANT

RFEXPOSUREEVALUATION FCCID:A8I-BACKPACK-M AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeused toevaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF) Radiationasspecifiedin§1.1307(b): RoutineSARevaluationreferstothatspecificallyrequiredby§2.1093,using measurementsorcomputersimulation.WhenroutineSARevaluationisnot required,portabletransmitterswithoutputpowergreaterthantheapplicable lowthresholdrequireSARevaluationtoqualifyforTCBapproval. Channel (MHz) Maximum output power (dBm) Tuneup tolerance (dBm) MaxTuneUp Power(dBm) Distance (mm) Calculation results Limit Operating Mode 24021.7041.704 ±1 2.704 5 0.578 3 BLE24401.9281.928 ±12.928 5 0.613 3 24801.8651.865 ±12.86550.6093 24021.1811.181 ±1 2.181 5 0.512 3 BDR24411.4551.455 ±12.455 5 0.550 3 24801.8571.857 ±12.85750.6083 24021.1731.173 ±1 2.173 5 0.511 3 EDR24411.5471.547 ±12.547 5 0.562 3 24801.6611.661 ±12.66150.5813 TestResults:PASS.

Report No.: 18220WC00165601FCC ID: A8I-BACKPACK-MPage 1 of 66 Code:AB-RF-05-a FCC TEST REPORT Client Name:Shenzhen Divoom Technology Co.,LTD. Address: 1st floor, 5th Building, Xinlianhe Industrial Park Jincheng Road, Shajing Town, Bao'an, Shenzhen, China 518000 Product Name:Divoom-Backpack-M Date:Apr. 06, 2021 Shenzhen Anbotek Compliance Laboratory Limited Report No.: 18220WC00165601FCC ID: A8I-BACKPACK-MPage 2 of 66 Code:AB-RF-05-a Contents 1. General Information ............................................................................................................................................... 5 1.1. Client Information ....................................................................................................................................... 5 1.2. Description of Device (EUT) ..................................................................................................................... 5 1.3. Auxiliary Equipment Used During Test ................................................................................................... 6 1.4. Description of Test Modes ........................................................................................................................ 6 1.5. List of channels ........................................................................................................................................... 7 1.6. Description Of Test Setup ......................................................................................................................... 8 1.7. Test Equipment List .................................................................................................................................... 9 1.8. Measurement Uncertainty ....................................................................................................................... 10 1.9. Description of Test Facility ...................................................................................................................... 10 2. Summary of Test Results ................................................................................................................................... 11 2.1. Pseudorandom Frequency Hopping Sequence .................................................................................. 11 3. Conducted Emission Test ................................................................................................................................... 13 3.1. Test Standard and Limit .......................................................................................................................... 13 3.2. Test Setup .................................................................................................................................................. 13 3.3. Test Procedure .......................................................................................................................................... 13 3.4. Test Data .................................................................................................................................................... 13 4. Radiation Spurious Emission and Band Edge ................................................................................................ 16 4.1. Test Standard and Limit .......................................................................................................................... 16 4.2. Test Setup .................................................................................................................................................. 16 4.3. Test Procedure .......................................................................................................................................... 17 4.4. Test Data .................................................................................................................................................... 18 5. Maximum Peak Output Power Test .................................................................................................................. 36 5.1. Test Standard and Limit .......................................................................................................................... 36 5.2. Test Setup .................................................................................................................................................. 36 5.3. Test Procedure .......................................................................................................................................... 36 5.4. Test Data .................................................................................................................................................... 36 6. 20DB Occupy Bandwidth Test ........................................................................................................................... 42 6.1. Test Standard ............................................................................................................................................ 42 6.2. Test Setup .................................................................................................................................................. 42 6.3. Test Procedure .......................................................................................................................................... 42 6.4. Test Data .................................................................................................................................................... 42 7. Carrier Frequency Separation Test ................................................................................................................... 48 7.1. Test Standard and Limit .......................................................................................................................... 48 7.2. Test Setup .............................................................................................................................................…

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FCCID:A8I-BACKPACK-M PhotoofConductedEmissionMeasurement PhotoofRadiationEmissionTest