2A7UF-TK-502Bluetooth speaker

User Manual TK-502 PORTABLE BATTERY SPEAKER 3 Specifications: Power: 40W Frequency Response for main speaker: 45Hz-20KHz Power Supply: DC 9V TWS: (True Wireless Speaker) It needs two speakers to make a TWS. When you had twospeakers, you can make a TWS as below steps: 1. Don't connect to this speaker with Bluetooth devices. 2. Turn on both speakers and press the mode button to changeto Bluetooth mode. 3. Press and hold one speaker's play/pause button for 3seconds and wait for both speakers to connect each other. It will have a tone coming out from these speakers after connected successfully. 4. Turn the Bluetooth devices to search the Bluetooth name“TK-502" and tap to connect it. It will have a tone coming out from this speaker after connected successfully. 5. Now you can play the music form your Bluetooth devices. Playing recording function 1. After the portable speaker is tumed on, insert the TF Card or U disk to the TF slot or USB port, press the Mode button to the Bluetooth mode, connect it with your Bluetooth device and paly the music, press the REC button seconds you will here a prompt voice “ding” means the TF card/USB is starting recording, you will here prompt voice”ding ding”, that means stop recording. 2. If you want to play this recording sound, press the Mode button to the USB or TF card mode, press the next button to find out this song and play it. Note： a)When your TF card and U disk insert to the speaker at same time, it will record to your U disk when recording b)The recording only works in Bluetooth mode, can not record in FM, Aux mode and can’t record Microphone’s sound. c)It's better to tum the Bleutooth devices volume to maximum during recording d)It will be stopped recording when pressing the mode button during recording. 12 Front panel 1.DC interface (9V) 2. 3.TF 4.AUX input 5. 6. 7.MENUChoose pressPress "Menu" button, then twist the Volume knob to choose amoung "T-12--12,b-12--12, 0U 00-16,E 00-16" 8.button 9.MODE/MIC.PRI: BLUE,AUX,FM;long press MIC.PRI ON/OFF. Power (Hold for 3 seconds to ON/OFF). 11. d 3 seconds to pairing another TWS speaker;Under FM mode, lightly press Play/Pause&TWS to enter into automatic scan and all the scanned radio stations will be saved automatically.) 13. mode 15.LED Display USB Player card input Microphone input VOLUME Music volume adjust : TREBLE,BASS,ECHO,MIC VOLUME; Previous/CH-: In the state of FM radio, short press CH- for the last available radio program. 12.Play/Pause&TWS&FM:(Wirless Bluetooth Connection: under bluetooth mode, press TWS button for aroun REC Short press 10. Next/CH+:In the state of FM radio, short press CH+ for the next available radio program. 14.LED TF USB DC 9V MIC MENU REC MODE CH- TWS LEDPOWER VOLUME MIC PRI AUX CH+ 12345 6 7 8 9 10 11 12 13 14 15 POWER SOURCE 1.Please charge the unit at least 4 hours before first time using. 2. Power (Hold for 3 seconds to ON/OFF). CHARGE THE BATTERY When charging,the battery symbol on the screen flashing. When the unit is fully charged,the battery symbol stop flashing. 1. Connect the adapter cable to the DC9V interface of the speaker firmly. 2. When the battery is fully charged, please disconnect the USB charge cable from the speaker. 3.The speaker works normally when charging. POWER/VOLUME Twist the dial clockwise/anticlockwise to increase/discrease the volume. PREVIOUS/NEXT BUTTON Under playing status, press PREVIOUS/NEXT button to get back to a previous or next song. PAUSE/PLAY BUTTON To stop playing the current track, please press PAUSE/PLAY button on the control panel. Press it once again to continue playing. MODE Press to enter into playing mode selection(Bluetooth,FM Radio,AUX Input,USB,TF). AUX IN JACK 1.Connect an audio cable to the AUX IN JACK of the speaker and to the audio output socket on the external audio devices such as MP3 player, discman,etc,then select LINE by pressing the MODE button on the control panel . 2.Play from an external audio device. MIC IN JACK Plug in microphone directly for playing. USB JACK Insert USB card directly for playing. TF JACK Insert TF card dirctly for playing. FM FUNCTION Press MODE button to switch to FM mode. Press PLAY/PAUSE button on control panel for automatic searching and saving the radio stations, by pressing PREVIOUS or NEXT you can select a previous or next radio station. Bluetooth: Press MODE button on control panel to select Bluetooth mode. Simultaneously open the Bluetooth setting on your phone, tablet or any other bluetooth enabled audio device and select "TK-502"(no need to match code), the unit and device will then connected via Bluetooth. Press the "NEXT SONG" and "PREVIOUS SONG" button on the control panel to select the song, press " PLAY/PAUSE" button to control the playing status. FCCWarningStatement:Changesormodificationstothisunitnotexpressly approvedbythepartyresponsibleforcompliancecouldvoidtheuser’s authoritytooperatetheequipment.Thisequipmenthasbeentestedandfound tocomplywiththelimitsforaClassBdigitaldevice,pursuanttoPart15ofthe FCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainst harmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates, usesandcanradiateradiofrequencyenergyand,ifnotinstalledandusedin accordancewiththeinstructions,maycauseharmfulinterferencetoradio communications. However,thereisnoguaranteethatinterferencewillnotoccurinaparticular installation.Ifthisequipmentdoescauseharmfulinterferencetoradioor televisionreception,whichcanbedeterminedbyturningtheequipmentoffand on,theuserisencouragedtotrytocorrecttheinterferencebyoneormoreof thefollowingmeasures: -Reorientorrelocatethereceivingantenna. -Increasetheseparationbetweentheequipmentandreceiver. - Connecttheequipmentintoanoutletonacircuitdifferentfromthatto whichthereceiverisconnected. - Consultthedealeroranexperiencedradio/TVtechnicianforhelp. ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothe followingtwoconditions:(1)thisdevicemaynotcauseharmfulinterference, and(2)thisdevicemustacceptanyinterferenc…

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QINGYUANRUIMAELECTRONICSCO.,LIMITED 2.911(d)(5)(i)EquipmentTypeAttestationv1.2 Section2.911(d)(5)(i)Certification–EquipmentType Companyname:QINGYUANRUIMAELECTRONICSCO.,LIMITED Address:5THFLOOR,NO.17BUILDING,NO.12TAIKIINDUSTRIALCITY,LONGTANG TOWN,QINGCHENGDISTRICT,QINGYUAN,China ProductName:Bluetoothspeaker FCCID:2A7UF-TK-502 Model(s):TK-502 NF4097,PSP1515-ASST,PSP481,ET662,ET733,BOOD,GY-40,SPK815,ABTS-806,ABTS-704, ET728,VL-40,PSP1285,PBX-1515,TK-555,TK-3615MINIH,TK-522,TK-528,TK-592,TK-1010 2.911(d)(5)(i)EquipmentType We,QINGYUANRUIMAELECTRONICSCO.,LIMITED(“theapplicant”)certifythattheequipment forwhichauthorizationissoughtthroughcertificationisnot:  Prohibitedfromreceivinganequipmentauthorizationpursuantto§2.903;oftheFCCrules.  Identifiedasanequipmenttypeinthe“CoveredList” NOTE1 Yourssincerely, Name:WadeZengDate:2023.06.21 TitleandCompanyname:N/A/QINGYUANRUIMAELECTRONICSCO.,LIMITED NOTE1 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

QINGYUANRUIMAELECTRONICSCO.,LIMITED 2.911(d)(5)(ii)ApplicantAttestationv1.3 Section2.911(d)(5)(ii)Certification–Applicant(CoveredList) Companyname:QINGYUANRUIMAELECTRONICSCO.,LIMITED Address:5THFLOOR,NO.17BUILDING,NO.12TAIKIINDUSTRIALCITY,LONGTANG TOWN,QINGCHENGDISTRICT,QINGYUAN,China ProductName:Bluetoothspeaker FCCID:2A7UF-TK-502 Model(s):TK-502 NF4097,PSP1515-ASST,PSP481,ET662,ET733,BOOD,GY-40,SPK815,ABTS-806,ABTS-704, ET728,VL-40,PSP1285,PBX-1515,TK-555,TK-3615MINIH,TK-522,TK-528,TK-592,TK-1010 2.911(d)(5)(ii)Applicantfiling We,QINGYUANRUIMAELECTRONICSCO.,LIMITED(“theapplicant”)certifythat,asofthedateof thefilingoftheapplication,theapplicantisnotidentified NOTE1 onthe“CoveredList” NOTE2 , establishedpursuantto§1.50002ofthischapter,asanentityproducingcoveredcommunications equipment. Yourssincerely, Name:WadeZengDate:2023.06.21 TitleandCompanyname:N/A/QINGYUANRUIMAELECTRONICSCO.,LIMITED NOTE1 Deleteoptionnotapplicabletothisapplication. NOTE2 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

QINGYUANRUIMAELECTRONICSCO.,LIMITED OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2023.06.21 Subject;RequestforConfidentiality FCCID:2A7UF-TK-502 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure 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:WadeZeng Title:N/A

QINGYUANRUIMAELECTRONICSCO.,LIMITED AgentAuthorization Company:QINGYUANRUIMAELECTRONICSCO.,LIMITED Address:5THFLOOR,NO.17BUILDING,NO.12TAIKIINDUSTRIALCITY,LONGTANG TOWN,QINGCHENGDISTRICT,QINGYUAN,China ProductName:Bluetoothspeaker ModelNumber(s):TK-502 NF4097,PSP1515-ASST,PSP481,ET662,ET733,BOOD,GY-40,SPK815,ABTS-806, ABTS-704,ET728,VL-40,PSP1285,PBX-1515,TK-555,TK-3615MINIH,TK-522,TK- 528,TK-592,TK-1010 ProductDescription:Bluetoothspeaker WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2023.06.21 Name:WadeZeng Title:N/A Company:QINGYUANRUIMAELECTRONICSCO.,LIMITED

QINGYUANRUIMAELECTRONICSCO.,LIMITED. ModelDifference Productdescription:Bluetoothspeaker Modelname:TK-502 NF4097,PSP1515-ASST,PSP481,ET662,ET733,BOOD,GY-40, SPK815,ABTS-806,ABTS-704,ET728,VL-40,PSP1285,PBX-1515, TK-555,TK-3615MINIH,TK-522,TK-528,TK-592,TK-1010 TradeName:OEMBRAND FCCID2A7UF-TK-502 AllthemodelarethesamecircuitandRFmodule,exceptformodelname. Regards Sincerely Client’ssignature: Client’sname/title:WadeZeng/N/A Contactinformation/address:13609609113/5THFLOOR,NO.17BUILDING,NO.12 TAIKIINDUSTRIALCITY,LONGTANGTOWN,QINGCHENG DISTRICT,QINGYUAN,China

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Labelandlabellocation 2cm 1cm Bluetoothspeaker FCCID:2A7UF-TK-502

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FCC ID:2A7UF-TK-502 RF ExposureEvaluation AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1093 ， UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone 1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposure conditions,bymeasurementornumericalsimulation,is notrequiredwhenthe correspondingSARTestExclusionThresholdcondition(s),listedbelow,is (are)satisfied. For100MHzto6 GHzandtestseparationdistances≤ 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) is theRFchanneltransmitfrequencyin GHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultis roundedtoonedecimalplaceforcomparison Here, EDR Mode Max Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit GFSK-3.4310.45240250.143.0 π/4-DQPSK-1.3360.74240250.233.0 8-DPSK-1.3120.74240250.233.0 Soa SARtestis notrequired

ProjectNo.:ZKT-230515049E Page 1 of 81 FCCTESTREPORT FCCID:2A7UF-TK-502 ReportNumber. .................................... :ZKT-230515049E DateofTest ...................................................... : May10,2023toJun02,2023 Dateofissue.........................................: Jun02,2023 Totalnumberofpages.........................79 TestResult .......................................... : PASS TestingLaboratory...........................: ShenzhenZKTTechnologyCo.,Ltd. Address ............................................... : 1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China Applicant'sname.............................: QINGYUANRUIMAELECTRONICSCO.,LIMITED Address ............................................... : 5THFLOOR,NO.17BUILDING,NO.12TAIKIINDUSTRIAL CITY,LONGTANGTOWN,QINGCHENG DISTRICT,QINGYUAN,CHINA Manufacturer'sname......................: QINGYUANRUIMAELECTRONICSCO.,LIMITED Address...............................................: 5THFLOOR,NO.17BUILDING,NO.12TAIKIINDUSTRIAL CITY,LONGTANGTOWN,QINGCHENG DISTRICT,QINGYUAN,CHINA Testspecification: Standard ................................................ : FCCCFRTitle47Part15SubpartCSection15.247 ANSIC63.10:2013 Testprocedure.....................................: / Non-standardtestmethod................:N/A TestReportFormNo........................: TRF-EL-112_V0 TestReportForm(s)Originator.....: ZKTTesting MasterTRF ........................................ : Dated:2021-04-22 ThisdevicedescribedabovehasbeentestedbyZKT,andthetestresultsshowthattheequipmentunder test(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZKT,thisdocumentmay bealteredorrevisedbyZKT,personalonly,andshallbenotedintherevisionofthedocument. ProjectNo.:ZKT-230515049E Page 2 of 81 Productname ..................................... :Bluetoothspeaker Trademark ........................................... :OEMBRAND Model/Typereference ......................... :TK-502 NF4097,PSP1515-ASST,PSP481,ET662,ET733,BOOD,GY-40, SPK815,ABTS-806,ABTS-704,ET728,VL-40,PSP1285, PBX-1515,TK-555,TK-3615MINIH,TK-522,TK-528,TK-592, TK-1010 Ratings .................................................. : Input:100-240V-50/60Hz,0.3A BatteryInput:DC7.4V ProjectNo.:ZKT-230515049E Page 3 of 81 Testingprocedureandtestinglocation: TestingLaboratory .......................................... :ShenzhenZKTTechnologyCo.,Ltd. Address............................................................:1/F,No.101,BuildingB,No.6,TangweiCommunity IndustrialAvenue,FuhaiStreet,Bao'anDistrict, Shenzhen,China JimLiu Testedby(name+signature) ....................... : TomZou Reviewer(name+signature) ....................... : LakeXie Approved(name+signature) ....................... : ProjectNo.:ZKT-230515049E Page 4 of 81 TableofContents Page 1.VERSION.......................................................................................................................................6 2.TESTSUMMARY........................................................................................................................7 2.1TESTFACILITY..............................................................................................................................8 2.2MEASUREMENTUNCERTAINTY...........................................................................................8 3.GENERALINFORMATION.......................................................................................................9 3.1GENERALDESCRIPTIONOFEUT........................................................................................9 3.2TestSetupConfiguration...........................................................................................................10 3.3SupportEquipment......................................................................................................................10 3.4TestMode.......................................................................................................................................11 3.5EQUIPMENTSLISTFORALLTESTITEMS......................................................................12 4.EMCEMISSIONTEST.............................................................................................................13 4.1Conductedemissions.................................................................................................................13 4.1.1POWERLINECONDUCTEDEMISSIONLimits............................................................13 4.1.2TESTPROCEDURE...............................................................................................................13 4.1.3DEVIATIONFROMTESTSTANDARD............................................................................13 4.1.4TESTSETUP.............................................................................................................................13 4.1.5EUTOPERATINGCONDITIONS.......................................................................................14 4.1.6TestResult.................................................................................................................................15 4.2Radiatedemissions.....................................................................................................................17 4.2.1RadiatedEmissionLimits.......................................................................................................17 4.2.2TESTPROCEDURE...............................................................................................................17 4.2.3DEVIATIONFROMTESTSTANDARD............................................................................18 4.2.4TESTSETUP.............................................................................................................................18 4.2.5EUTOPERATINGCONDITIONS.........................................................…

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