2AHYJTVD5010Omnidirectional microphone with Bluetooth

SmartConferenceSpeaker-TVD0001 UserManual 1.Productdescription TheLincPlusSmartConferenceSpeaker-TVD0001allowssendingand receivingaudioduringtalktime.LincPlusconferencespeakercannotonly beappliedtotheconferenceroomoftheofficebuilding,providingmorepeople withhigh-qualityremoteconferenceservices,offeringclearvoicequalityin noisyenvironments,likeacaféofthebusinessdistrictbutalsocanbeagood solutionforworkingathome. 2.Productinformation Speakeroutputrating3WRMS Frequencyresponse20Hz~20KHz(±1dB) SNR55dB BluetoothversionV5.0 Microphonefrequency response 100Hz~8KHz Microphonedirectivity360degreeomnidirectional Batteryspecification3.7V/3000mAh Chargetime3-4hours Usagetime Talktime:12hours(Dependingontheusage,thetalk timevaries) 3.Notes -Donotplacethebatteryindirectsunlightorfireexposureplaces. -Note:Ifthebatteryorbatterypackisimproperlyreplaced,therewillbe explosionhazard.Onlytechnicalengineersofourcompanyorourauthorized servicepointscanreplacewithbatteryofthesameorequivalenttype. -Thewholedeviceandaccessoriesshouldbeplacedindryventilatedindoor placestoavoidrain,waterdrop,wateringress,fallandcoverageofventholes. -Toprotecttheenvironment,putthediscardedproductsintothedesignated sortingtrashbinanddonotdiscarddirectly. 4.FCCInformationandCopyright ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClass Bdigitaldevice, pursuanttopart15oftheFCCRules. Theselimitsaredesignedtoprovidereasonableprotectionagainstharmful interferenceinaresidential installation.Thisequipmentgenerates, usesandcanradiateradiofrequencyenergyand,ifnotinstalledandusedin accordancewiththe instructions,maycauseharmfulinterference toradiocommunications.However,thereisnoguaranteethatinterferencewill notoccurinaparticular installation.Ifthisequipmentdoes causeharmfulinterferencetoradioortelevisionreception,whichcanbe determinedbyturningthe equipmentoffandon,theuseris encouragedtotrytocorrecttheinterferencebyoneormoreofthefollowing measures: —Reorientorrelocatethereceivingantenna. —Increasetheseparationbetweentheequipmentandreceiver. —Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhich thereceiveris connected. —Consultthedealeroranexperiencedradio/TVtechnicianforhelp. 15.19Labellingrequirements. Thisdevicecomplieswithpart15oftheFCCRules.Operationissubjecttothe followingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)thisdevicemustacceptanyinterferencereceived,includinginterference thatmay causeundesiredoperation. changesormodificationsnotexpresslyapprovedbythepartyresponsiblefor compliancecould voidtheuser'sauthoritytooperatetheequipment. FCCRFwarningstatement:thedevicehasbeenevaluatedtomeetgeneral RFexposure requirement,Thedevicecanbeusedinportableexposureconditionwithout restriction. 5.Warranty LincPlusLimitedwarrantstotheenduserthatthisproductwillbefreefrom defectsinmaterialsandworkmanship,inthecourseofnormaluseforaperiod of12months(1year)fromthedateofpurchase.Thiswarrantycovers breakdownsduetomanufacturingordesignfaults.Ifagenuinemanufacturing faultisfound,LincPlusLimitedwillissueareplacement. Thewarrantyissubjecttothefollowingprovisions: >Thewarrantydoesnotcoveraccidentaldamage,wearandtear,or negligence; >Itmustbesolelyusedfordomesticpurposes; >Thewarrantywillberenderedinvalidiftheproductisresoldorisdamaged throughanyadjustment,modificationorrepairnotauthorizedbyus; >Specificationsaresubjecttochangewithoutnotice; >Shouldyouhaveaproblemwithyourunitpleaseemailusat: [email protected] WarrantySupplier: ShenZhenLincPlusTechnologyCo.,Inc 5F,No.2Building,DistrictD2,TCLinternationalECity,NO.1001 ZhongshanyuanRoad,NanshanDistrict,ShenZhen,P.R.China www.lincplus.com.cn

Date:28May2021 TechvisionIntelligentTechnologyCo.,Ltd. To:FederalCommunicationsCommission, Authorization&EvaluationDivision, 7435OaklandMillsRoad, Columbia,MD21046 ToWhomItMayConcern: TheTechvisionIntelligentTechnologyCo.,Ltd.,theundersigned,herebyauthorizesMr.Wu XuewenfromShenzhenBALUNTechnologyCo.,Ltd.,toactonthebehalfoftheTechvision IntelligentTechnologyCo.,Ltd.solelyinmattersrelatingtotheapplicationforanFCC equipmentauthorizationforFCCID:2AHYJTVD5010includingthesigningofdocumentsin connectionwiththisApplication.NecessaryactscarriedoutbyShenzhenBALUNTechnology Co.,Ltd.inconnectionwiththeApplicationshallhavethesameeffectasactsoftheTechvision IntelligentTechnologyCo.,Ltd.. TheTechvisionIntelligentTechnologyCo.,Ltd.alsoherebycertifythatnopartytothis applicationissubjecttoadenialofbenefits,includingFCCbenefits,pursuanttoSection5301of theAnti-DrugAbuseActof1988,21U.S.C.Section862. YoursSincerely, _______ Tangshark

Date:28May2021 TechvisionIntelligentTechnologyCo.,Ltd. To:FederalCommunicationsCommission, Authorization&EvaluationDivision, 7435OaklandMillsRoad, Columbia,MD21046 Re:TechvisionIntelligentTechnologyCo.,Ltd. FCCID:2AHYJTVD5010 FCCCertificationConfidentialityRequest Gentlemen: Thisletteristocomplywith47CFR0.457and0.459pertainingtoconfidentiality material.TechvisionIntelligentTechnologyCo.,Ltd.requeststhatthefollowing documentsregardingthissubmissionforFCCID:2AHYJTVD5010bekept confidential: ExhibitTypeFileName BlockDiagramBlockDiagram.pdf SchematicsSchematics.pdf OperationalDescriptionOperationalDescription.pdf Andbelowexhibitkeptshort-termconfidential(180days): ExternalphotosExternalphotos.pdf Testsetupphotostestphoto.pdf InternalphotosInternalphotos.pdf UsermanualUsermanual.pdf Thosedocumentscontaindetailedsystemandequipmentdescriptionandrelated informationabouttheproductwhichTechvisionIntelligentTechnologyCo.,Ltd. considerstobeconfidentialproprietary,acustomdesignand,otherwise,not releasabletothegeneralpublic.Sincethisdesignisabasisformwhichfuture technologicalproductswillevolve,TechvisionIntelligentTechnologyCo.,Ltd. considersthisinformationwouldbeofbenefittoitscompetitors,andthatthe disclosureoftheinformationinthesedocumentswouldgivecompetitorsanunfair advantageinthemarket. YoursSincerely, Tangshark

Annex No.: BL-SZ2070167-AW 1 / 3 EUT EXTERNAL PHOTOS FRONT VIEW OF EUT REAR VIEW OF EUT Annex No.: BL-SZ2070167-AW 2 / 3 LEFT SIDE VIEW OF EUT RIGHT SIDE OF EUT Annex No.: BL-SZ2070167-AW 3 / 3 TOP VIEW OF EUT BOTTOM VIEW OF EUT

Annex No.: BL-SZ2070167-AI 1 / 4 EUT INTERNAL PHOTOS EUT UNCOVER VIEW EUT UNCOVER VIEW Annex No.: BL-SZ2070167-AI 2 / 4 EUT UNCOVER VIEW MAIN BOARD TOP VIEW PCB Antenna RF Chip Annex No.: BL-SZ2070167-AI 3 / 4 MAIN BOARD REAR VIEW Battery Photo (FRONT) c Annex No.: BL-SZ2070167-AI 4 / 4 Battery Photo (REAR)

RF Exposure Evaluation for FCC ID: 2AHYJTVD5010 Refer user manual this device is an Omnidirectional microphone, and this device was designed used in portable devices that the minimum distance between human’s body is 5mm. Based on the 47CFR 2.1093, this device belongs to portable device. The definition of the category as following: Portable Derives: CFR Title 47 §2.1093(b) (b) For purposes of this section, a portable device is defined as a transmitting device designed to be used so that the radiating structure(s) of the device is/are within 20 centimeters of the body of the user. FCC KDB 447498 D01 General RF Exposure Guidance v06 Limit Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions. The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander. 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 The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. Test data BLUETOOTH Mode GFSK (BR) GFSK (BLE) Low Channel Middle Channel High Channel Low Channel Middle Channel High Channel Peak Power (dBm) -16.28 -18.50 -17.96 -3.50 -2.87 -1.99 Note: This report listed the worst case peak power value, please refer to RF test report for more details. Turn-up power Mode Power Range (dBm) Bluetooth(BR) (-16.00) – (-18.00) Bluetooth(BLE) (-4.00) – (-1.50) RF Exposure Evaluation Result Mode Tune-up limit power (dBm) Distance (mm) Calculation Frequency (MHz) Calculation Results Threshold Value Verdict Bluetooth -1.50 5 2480 0.22 3.0 Compliance

Report No.: BL-SZ2070167-601 2 / 54 Revision History Version Issue Date Revisions Content Rev. 01 May 28, 2021 Initial Issue TABLE OF CONTENTS 1 ADMINISTRATIVE DATA (GENERAL INFORMATION) .......................................................................... 5 1.1 Identification of the Testing Laboratory ....................................................................................... 5 1.2 Identification of the Responsible Testing Location ...................................................................... 5 1.3 Laboratory Condition ................................................................................................................... 5 1.4 Announce .................................................................................................................................... 5 2 PRODUCT INFORMATION ...................................................................................................................... 6 2.1 Applicant Information ................................................................................................................... 6 2.2 Manufacturer Information ............................................................................................................ 6 2.3 Factory Information ..................................................................................................................... 6 2.4 General Description for Equipment under Test (EUT) ................................................................ 6 2.5 Technical Information .................................................................................................................. 7 2.6 Additional Instructions ................................................................................................................. 8 3 SUMMARY OF TEST RESULTS .............................................................................................................. 9 3.1 Test Standards ............................................................................................................................ 9 3.2 Verdict ......................................................................................................................................... 9 4 GENERAL TEST CONFIGURATIONS ................................................................................................... 10 4.1 Test Environments .................................................................................................................... 10 4.2 Test Equipment List ................................................................................................................... 10 4.3 Measurement Uncertainty ......................................................................................................... 10 4.4 Description of Test Setup .......................................................................................................... 11 4.4.1 For Antenna Port Test ............................................................................................................... 11 4.4.2 For AC Power Supply Port Test ................................................................................................ 1 1 4.4.3 For Radiated Test (Below 30 MHz) ........................................................................................... 12 4.4.4 For Radiated Test (30 MHz-1 GHz) .......................................................................................... 12 4.4.5 For Radiated Test (Above 1 GHz) ............................................................................................. 13 4.5 Measurement Results Explanation Example ............................................................................. 14 4.5.1 For conducted test items: .......................................................................................................... 14 5 TEST ITEMS ........................................................................................................................................... 15 Report No.: BL-SZ2070167-601 3 / 54 5.1 Antenna Requirements .............................................................................................................. 15 5.1.1 Relevant Standards ................................................................................................................... 15 5.1.2 Antenna Anti-Replacement Construction .................................................................................. 15 5.1.3 Antenna Gain ............................................................................................................................ 15 5.2 Frequency Hopping Systems .................................................................................................... 1 6 5.2.1 Relevant Standards ................................................................................................................... 16 5.2.2 Description of the systems ........................................................................................................ 16 5.3 Number of Hopping Frequencies .............................................................................................. 18 5.3.1 Limit ........................................................................................................................................... 18 5.3.2 Test Setup ................................................................................................................................. 18 5.3.3 Test Procedure .......................................................................................................................... 18 5.3.4 Test Result ................................................................................................................................ 18 5.4 Peak Output Power and E.I.R.P ................................................................................................ 1 9 5.4.1 Test Limit ...............................................................…

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Annex No.: BL-SZ2070167-AR 1 / 4 TEST SETUP PHOTOS 1 Radiated Test Photo Below 30MHz 30MHz-1GHz Annex No.: BL-SZ2070167-AR 2 / 4 Close-up Above 1GHz Annex No.: BL-SZ2070167-AR 3 / 4 Close-up 2 Conducted Test Photo Conducted Test Annex No.: BL-SZ2070167-AR 4 / 4 3 Conducted Emissions Test Photo 1 Test Photo 2