2AVJD-K08Wireless bluetooth headset

NOTE: Changesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliancecouldvoidtheuser'sauthoritytooperatetheequipment. ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuanttoPart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotection againstharmfulinterferenceinaresidentialinstallation.Thisequipment generatesusesandcanradiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththe instructions,maycauseharmfulinterferencetoradiocommunications.However,thereisnoguaranteethatinterferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescauseharmful interferencetoradioortelevisionreception,whichcanbedetermined byturningtheequipmentoffandon,theuserisencouragedtotrytocorrecttheinterferencebyoneormoreofthefollowingmeasures: --Reorientorrelocatethereceivingantenna. --Increasetheseparationbetweentheequipmentandreceiver. --Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiverisconnected. --Consultthedealeroranexperiencedradio/TVtechnicianforhelpThisdevicecomplieswithpart15oftheFCCrules.Operationissubjecttothefollowingtwoconditions(1)thisdevicemaynot causeharmfulinterference,and(2)thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycauseundesiredoperation. Charging bin： Charging: Digital Display of Current Electricity Illumination: Touchthe power switch, 2 seconds digital display lights on, 30 seconds after automatic shutdown;Touch for 6 seconds to light the LED lamp. Touch again for 8 seconds to turn off the LED lamp. Full time: display power is 100 Charging time: 1 hour LED FCC ID:2AVJD-K08

Shenzhen Ruianyuan Electronic Technology Co., Ltd. Declaration on model difference Page 1 of 1 We, Shenzhen Ruianyuan Electronic Technology Co., Ltd. the undersigned hereby confirm that these models are identical, and all models have the same RF module and Antenna, except for decorative parts in front panels, color of enclosure, and model no. for trading purpose. FCC ID：2AVJD-K08
Production name Trade name INPUT Model no. Wireless bluetooth headset --- DC 5V K-08,K-01,K-05,K-02,K-03, K-05,K-06,K-9,K-11,K-88 C onfirmed by: Name: Meizhen Lin Title: manager Date: 2019-12-25 Signature of applicant:

C5266091_X8_Ed.1 1/1 Letter of Authorization Shenzhen Ruianyuan Electronic Technology Co., Ltd. Company: Shenzhen Ruianyuan Electronic Technology Co., Ltd. Address: Floor 4, building 5, tumao industrial park, hebei industrial zone, longhua district, shenzhen Product Name: Wireless bluetooth headset Model Number: K-08,K-01,K-05,K-02,K-03,K-05,K-06,K-9,K-11,K-88 FCC Identifier: 2AVJD-K08 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Meizhen Lin Date: 2019-12-25 Title: Manger Signature of applicant:

C5266091_X10_Ed.1 1/1 Luzerne Trading Company, Inc Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2019-12-25 Subject: Request for Confidentiality FCC ID:2AVJD-K08 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality ID Label/Location No No Attestation Statement No No External Photos No Block Diagram Schematics Test Report No No Test Setup Photos No User’s Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) No No SDR Software / Security Info No Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Meizhen Lin Title: Manager

FCC ID ： 2AVJD-K08

FCC ID: 2AVJD-K08

FCC ID: 2AVJD-K08 ANT

RF Exposure evaluation FCC ID:2AVJD-K08 According to 447498 D01 General RF Exposure Guidance v05 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison Worse case is as below: [2441MHz, -2.47dBm (0.6mW) output power] (0.6/5) ·[√2.441(GHz)]= 0.187<3.0 for 1-g SAR Then SAR evaluation is not required

Page 1 of 52 FCCTESTREPORT FCCID:2AVJD-K08 ProductName:Wirelessbluetoothheadset ModelName: K-08,K-01,K-05,K-02,K-03,K-05,K-06,K-9,K-11,K-88 BrandName:N/A ReportNo.: PTC19121100301E-FC01 Preparedfor ShenzhenRuianyuanElectronicTechnologyCo.,Ltd. Floor4,building5,tumaoindustrialpark,hebeiindustrialzone,longhuadistrict, shenzhen Preparedby DongguanPreciseTesting&CertificationCo.,Ltd. BuildingD,BaodingTechnologyPark,GuangmingRoad2,GuangmingCommunity, DongchengDistrict,Dongguan,Guangdong,China ReportNo.:PTC19121100301E-FC01 Page 2 of 52 1TESTRESULTCERTIFICATION Applicant’sname: ShenzhenRuianyuanElectronicTechnologyCo.,Ltd. Address: Floor4,building5,tumaoindustrialpark,hebeiindustrialzone, longhuadistrict,shenzhen Manufacture'sname: ShenzhenRuianyuanElectronicTechnologyCo.,Ltd. Address: Floor4,building5,tumaoindustrialpark,hebeiindustrialzone, longhuadistrict,shenzhen Productname: Wirelessbluetoothheadset Modelname:K-08,K-01,K-05,K-02,K-03,K-05,K-06,K-9,K-11,K-88 Standards : FCCCFR47Part15Section15.247 Testprocedure : ANSIC63.10:2013 TestDate: Dec.10,2019toDec.30,2019 DateofIssue: Dec.31,2019 TestResult : Pass ThisdevicedescribedabovehasbeentestedbyPTC,andthetestresultsshowthatthe equipmentundertest(EUT)isincompliancewiththeFCCrequirements.Anditisapplicable onlytothetestedsampleidentifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofPTC,this documentmaybealteredorrevisedbyPTC,personalonly,andshallbenotedintherevision ofthedocument. TestEngineer: LeoYang/Engineer TechnicalManager: ChrisDu/Manager ReportNo.:PTC19121100301E-FC01 Page 3 of 52 Contents Page 1TESTRESULTCERTIFICATION.................................................................................................................................2 2TESTSUMMARY...........................................................................................................................................................5 3TESTFACILITY..............................................................................................................................................................6 4GENERALINFORMATION..........................................................................................................................................7 4.1GENERALDESCRIPTIONOFE.U.T.....................................................................................................................7 4.2TESTMODE..........................................................................................................................................................8 5EQUIPMENTDURINGTEST.....................................................................................................................................10 5.1EQUIPMENTSLIST..............................................................................................................................................10 5.2MEASUREMENTUNCERTAINTY..........................................................................................................................12 5.3DESCRIPTIONOFSUPPORTUNITS....................................................................................................................13 6CONDUCTEDEMISSION...........................................................................................................................................14 6.1E.U.T.OPERATION............................................................................................................................................14 6.2EUTSETUP........................................................................................................................................................14 6.3TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION)..................................................................................15 6.4MEASUREMENTPROCEDURE:...........................................................................................................................15 6.5CONDUCTEDEMISSIONLIMIT............................................................................................................................15 6.6MEASUREMENTDESCRIPTION...........................................................................................................................15 6.7CONDUCTEDEMISSIONTESTRESULT..............................................................................................................15 7RADIATEDSPURIOUSEMISSIONS.......................................................................................................................18 7.1EUTOPERATION...............................................................................................................................................18 7.2TESTSETUP.......................................................................................................................................................19 7.3SPECTRUMANALYZERSETUP...........................................................................................................................20 7.4TESTPROCEDURE.............................................................................................................................................21 7.5SUMMARYOFTESTRESULTS...........................................................................................................................22 8100KHZBANDWIDTHOFFREQUENCYBANDEDGE.....................................................................................27 8.1REQUIREMENT..............................................................................................................................................27 8.2TESTPROCEDURE.......................................................................................................................................27 8.3TESTSETUP...................................................................................................................................................27 ReportNo.:PTC19121100301E-FC01 Page 4 of 52 ....................…

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FCC ID: 2AVJD-K08