2ASWV-D268Smart Door Knob

TCBCALLpágina1 FileFCCID:2ASWV-D268 PleaseuploadanexhibitthatexplainshowdoestheTCBverifythenewagentinformation: 1-IstheaddressoftheagentavalidphysicalUSmailingaddress(notaUSpostofficebox,notavirtualmailbox,notP.O.Boxes,notavacantlot,notapublicbuilding, etc.) ○Wehavecheckediftheaddressexistsinarealandpotentialbuilding(Googlemaps)+officialUSregister,afterthisverificationandtheevidencebelowwecan guaranteethefollowing: notaUSpostofficebox notavirtualmailbox notP.O.Boxes notavacantlot notapublicbuilding(note) ►WecheckedtheFCCFRNSearchbasedontheinformationprovidedbythegrantee. Ontheofficialregisterfrom:https://opencorporates.com/companies/us_il/LLC_12842678 Ingoogle: TCBCALLpágina2 Bankinformation TCBCALLpágina3 TCBCALLpágina4 TCBCALLpágina5 TCBCALLpágina6 TCBCALLpágina7 TCBCALLpágina8 TCBCALLpágina9 ►CONCLUSIONbyTCB:TheASOPdefinedandprovidedbygranteeisVALIDandconfirmed.Thereforetheexhibit"AttestationStatementsUSagentforservice ofprocess_2ASWV-D268_FCCID_rev1"includedinthefileisok. 2-IstheagentphysicallylocatedatthatvalidUSaddresssuchthattheagentcanbelegallyservedatthataddress? Yes,checkabove 3-Hasthelistedagentclearlyagreedinwritingtoserveastheagentforthegranteeatthataddress? Yes,itisincludedintheexhibit"AttestationStatementsUSagentforserviceofprocess_2ASWV-D268_FCCID_rev1" >

ShenzhenLINGDUAutoElectronicsCo.,Ltd. Room2901,Unit1,Building1,LechuanghuiBuilding,GuihuaCommunity,GuanlanStreet,Longhua District,ShenZhen,China Date:2026-07-06 FEDERALCOMMUNICATIONSCOMMISSION AUTHORIZATIONANDEVALUATIONDIVISION 7435OAKLANDMILLSROAD COLUMBIA,MD21046 SUBJECT:FCCApplicationforFCCID:2ASWV-D268 POWEROFATTORNEY ToWhomItMayConcern: We,theundersigned,herebyauthorizeWaltekTestingGroup(Shenzhen)Co.,Ltd.JandySoonourbehalf,to applytotheFederalCommunicationsCommissiononourequipment.AnyandallactscarriedoutbyWaltek TestingGroup(Shenzhen)Co.,Ltd.JandySoonourbehalfshallhavethesameeffectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct.We,ShenzhenLINGDUAuto ElectronicsCo.,Ltd.arenotsubjecttoadenialoffederalbenefitspursuanttoSection5301oftheAnti-Drug Actof1988,21USC853a,andnopartytotheapplicationissubjecttoadenialoffederalbenefitspursuantto thatsection. Sincerely, Signatory [JingLing,Manager]

ShenzhenLINGDUAutoElectronicsCo.,Ltd. Room2901,Unit1,Building1,LechuanghuiBuilding,GuihuaCommunity,GuanlanStreet,Longhua District,ShenZhen,China Date:2026-07-08 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 USA FCCID:2ASWV-D268 ApplicantFRN:0028367936 USAgent–AttestationStatement/Part2.911(d)(7) ShenzhenLINGDUAutoElectronicsCo.,Ltd.certifiesthat,asof2026-07-08,wehave designatedFCCUSAgent,LLCtoacceptserviceofprocessonourbehalfforFCCID: 2ASWV-D268. ShenzhenLINGDUAutoElectronicsCo.,Ltd.,acceptstomaintainanagentofserviceof processintheUnitedStatesfornolessthanoneyearaftereitherthegranteehaspermanently terminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S.,orthe conclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolvingthe equipment,whicheverislater. FCCUSAgent,LLC,acceptsasofthedateofthefilingofthisapplication,theobligationof beingthedesignatedagentforthepurposeofacceptingserviceofprocessonbehalfof ShenzhenLINGDUAutoElectronicsCo.,Ltd.forFCCID:2ASWV-D268. DesignatedAgentInformation: CompanyName:FCCUSAgent,LLC U.S.AgentFRN:0033402884 Address:3722IllinoisAvenue,SaintCharles,IL,60174,USA ContactPerson:TimPayne Phone:708-571-3148 Email:[email protected] Applicant: CompanyName:ShenzhenLINGDUAutoElectronicsCo.,Ltd. FRN:0028367936 Address:Room2901,Unit1,Building1,LechuanghuiBuilding,GuihuaCommunity,Guanlan Street,LonghuaDistrict,ShenZhen,China ContactPerson:JingLing Phone:13692245291 Email:[email protected] ShenzhenLINGDUAutoElectronicsCo.,Ltd. Room2901,Unit1,Building1,LechuanghuiBuilding,GuihuaCommunity,GuanlanStreet,Longhua District,ShenZhen,China Sincerely, Company:ShenzhenLINGDUAuto ElectronicsCo.,Ltd. DesignatedAgent:FCCUSAgent,LLC CompanyRepresentative:JingLingDesignatedAgentRepresentative:TimPayne Signature: Signature:

AttestationStatement. OldCode:C526609124NewCode:00015544Ed.3 Changereason:FRNisaddedtotheApplicantinformationsection. 1/1 TO: OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 TheCommissionadoptedrulesthatprohibitequipmentauthorizationfor“covered” telecommunicationsequipmentandvideosurveillanceequipmentproducedbyentitiesidentified ontheCommission’sCoveredList 1 ,whichisperiodicallyupdated.SeetheCoveredListformore details.ThisAttestationStatementistoconfirmthatwefollowtheSection2.911(d)(5)(i)-(ii) Applicant Companyname:ShenzhenLINGDUAutoElectronicsCo.,Ltd. Granteecode:2ASWV FCCID:2ASWV-D268 FRN:0028367936 ContactName:JingLing Address:Room2901,Unit1,Building1,LechuanghuiBuilding,GuihuaCommunity,Guanlan Street,LonghuaDistrict,ShenZhen,China TelephoneNo:13692245291 FaxNo:+86-755-66631899 Email:[email protected] i.ShenzhenLINGDUAutoElectronicsCo.,Ltd.(“theapplicant”)certifiesthat theequipmentforwhichauthorizationissoughtisnot“covered”equipment prohibitedfromreceivinganequipmentauthorizationpursuanttosection 2.903oftheFCCrules.Theapplicantmustsignthiscertification. ii.ShenzhenLINGDUAutoElectronicsCo.,Ltd.(“theapplicant”)certifiesthat, asofthedateofthefilingoftheapplication,theapplicant[isnot](asa specificallynamedentityoranyofitssubsidiariesoraffiliates)identifiedon theCoveredListasanentityproducing“covered”equipment.Theapplicant mustsignthiscertification. ShenzhenLINGDUAutoElectronicsCo.,Ltd.(“theapplicant”)certifiesthat,asof thedateofthefilingoftheapplication,theapplicant[isnot]identifiedonthe CoveredListasanentityproducing“covered”equipment. Date:06/07/2026 Applicant’sName:JingLing Title:Manager Signature 1 TheCommission’sCoveredListispublishedbythePublicSafetyandHomelandSecurityBureauandpostedonthe Commission’swebsite.ThisCoveredList,whichisperiodicallyupdated,identifiesparticularequipment,producedby particularentities,thatconstitutes“covered”equipment.https://www.fcc.gov/supplychain/coveredlist

Companyletterhead Code00018768Ed.2 Item1.Thedeviceisabletoinstallsoftware/programinstallation? ☐Yes,gotoItem2. ☒ No.Inthiscase,therestoftheitemsdonotapply.ThedevicecannotsupportinstallationofKaspersky cybersecurityoranti-virussoftware. Item2.TechnicalRequirementsforKasperskyCybersecuritySoftware: #GeneralRequirements(ForallDevices)Yes/NoorN/AComments 1Internetconnectionforactivationandupdates(ForallOperating Systems) NO #GeneralRequirements(ForWindowsDevices)Yes/NoorN/AComments Device Companyname Granteecode FCCID FRN Contactname Address Telephonenumber E-mail Chipset/moduleinformation OperatingSystem(ifapplicable) StorageCapacity(harddriveorother permanentmemorystorage,ifapplicable) Smart Door Knob Shenzhen LINGDU Auto Electronics Co., Ltd. 2ASWV 2ASWV 0028367936 Jing Ling Room2901, Unit 1, Building 1, Lechuanghui Building, Guihua Community, Guanlan Street, Longhua District, ShenZhen, China 13692245291 [email protected] CH584F / / 2 1Storage:1500MBfreespaceontheharddriveNO 2OperatingSystem: MicrosoftWindows8,8.1,10&11Home/Pro/Enterprise Microsoft Windows7Starter/HomeBasic&Premium/Professional/ UltimateSP1orhigher NO 3Processor:1GHzorhigher(x86orx64)NO 4Memory(RAM)1GB(32-bit)or2GB(64-bit)NO 5ScreenResolution:Minimumresolutionof1024x768NO #GeneralRequirements(FormacOSdevices)Yes/NoorN/AComments 1OperatingSystemmacOS®13–14NO 2Memory(RAM)4GBNO 3Storage:3455MBfreespaceontheharddriveNO #GeneralRequirements(ForAndroidDevices)Yes/NoorN/AComments 1Storage:150MBfreespaceNO 2OperatingSystem:Android™10–14NO 3ScreenResolution:Minimumresolutionof320x480NO #GeneralRequirements(foriOSdevices)Yes/NoorN/AComments 1Storage:150MBfreespaceNO 2OperatingSystem:iOS®17NO #GeneralRequirements(ForLinuxsystem)Yes/NoorN/AComments 1Harddrive:1GBoffreespaceNO 2CPU:IntelPentium1GHzorhigherNO 3 3RAM:1GBNO 4Minimumsoftwarerequirements: AlmaLinuxOS8orlater; AlterOS7.5orlater; AstraLinuxCommonEdition2.12orlater; CentOS6.7orlater; DebianGNU/Linux10.0orlater; EulerOS2.0orlater; OracleLinux7.3orlater; RedHatEnterpriseLinux6.7orlater; RockyLinux8.5orlater; SUSELinuxEnterpriseServer12.5orlater; Ubuntu12.04orlater; UncomOSHome/Business/Education/Enterprise2.2orlater; ALTLinuxWorkstaton/WorkstationK/Server/Education8or later; ROSALinuxWorkstation/Server12orlater; REDOS7.3andlater; NO Afterreviewedthetechnicalrequirements,isthedevicecapableofsupportingtheinstallationof Kasperskysoftware? ☐ Yes,gotoItem3. ☒No.Inthiscase,therestoftheitemsdonotapply.ThedevicecannotsupportinstallationofKaspersky software Item3.ConnectivityCapabilities: #PhysicalInterfacePurposeJustification 1 1 Thejustificationfieldisusedtojustifywhythesoftwarecannotbereceivedthroughthatinterface.Checktheannexformore indications. 4 1USBType-CportBatterychargingonly-Limitedtopowersupply -Datatransfercapability disabled #WirelessInterfacePurposeJustification 1 1BluetoothPairinglimitedto authorizeddevices -Nofiletransfer capability -Pairinglimitedto authorizeddevices Afterthereviewofthisitems,thedevice: ☒Cannotsupportinstallationofanycybersecurityoranti-virussoftwareonthecoveredlist. ☐ Potentiallycanoperatewithanycybersecurityoranti-virussoftwareonthecoveredlist–additionalthird- partyproofisprovidedtodemonstratecompliancewithrequirementsasof2.911(d)5(i),(ii)–“Proofof CompliancewithCoveredListSoftwareRequirements”ofthisdocumentapplies Signature:Name:JingLing Date:06/07/2026

ShenzhenLINGDUAutoElectronicsCo.,Ltd. Room2901,Unit1,Building1,LechuanghuiBuilding,GuihuaCommunity,GuanlanStreet,Longhua District,ShenZhen,China Date:2026-07-08 FEDERALCOMMUNICATIONSCOMMISSION AUTHORIZATIONANDEVALUATIONDIVISION 7435OAKLANDMILLSROAD COLUMBIA,MD21046 SUBJECT:FCCID:2ASWV-D268 ModelDeclarationLetter DearRegulatoryAuthority, We(ShenzhenLINGDUAutoElectronicsCo.,Ltd.)herebystatethatallthemodels(D268,D500)areelectrical identicalincludingthesamesoftwareparameterandhardwaredesign(i.e.,circuitdesign,PCBLayout,RF module/circuit,antennatype(s)andantennalocation,componentsonPCB,etc.,),samemechanicalstructure anddesign(includingproductenclosure,materials,etc.,),thedifferencearethemodelnamesandenclosure color. Sincerely, Signatory [JingLing,Manager]

C5266091_X10_Ed.2 1/1 ShenzhenLINGDUAutoElectronicsCo.,Ltd. Room2901,Unit1,Building1,LechuanghuiBuilding,Guihua Community,GuanlanStreet,LonghuaDistrict,ShenZhen,China OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 Date:2026-07-06 Subject:RequestforConfidentiality FCCID:2ASWV-D268 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___180___daysfromthedateof theGrantofEquipmentAuthorizationandpriortomarketing. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name:JingLing Title:Manager

ShenzhenLINGDUAutoElectronicsCo.,Ltd. Room2901,Unit1,Building1,LechuanghuiBuilding,GuihuaCommunity,GuanlanStreet, LonghuaDistrict,ShenZhen,China C5266091_X8_Ed.1 1/1 LetterofAuthorization Company:ShenzhenLINGDUAutoElectronicsCo.,Ltd. Address:Room2901,Unit1,Building1,LechuanghuiBuilding,Guihua Community,GuanlanStreet,LonghuaDistrict,ShenZhen,China ProductName:SmartDoorKnob ModelNumber:D268,D500 FCCIdentifier:2ASWV-D268 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:JingLingDate:2026-07-06 Title:Manager Signatureofapplicant:

Reference No.: WTX26X06160513W001 Page 1 of 14 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn ANNEX EXHIBIT 1 - PRODUCT LABELING Proposed FCC ID Label Format Specifications: The label shall be securely affixed to a permanently attached part of the device, in a location where it is visible or easily accessible to the user, and shall not be readily detachable. The label shall be sufficiently durable to remain fully legible and intact on the device in all normal conditions of use throughout the device’s expected lifetime. Proposed Label Location on EUT FCC ID Label Location

1. RF Exposure Requirements 1.1 General Information Client Information Applicant: Shenzhen LINGDU Auto Electronics Co., Ltd. Address of applicant: Room2901, Unit 1, Building 1, Lechuanghui Building, Guihua Community, Guanlan Street, Longhua District, ShenZhen, China Manufacturer: Shenzhen LINGDU Auto Electronics Co., Ltd. Address of manufacturer: Room2901, Unit 1, Building 1, Lechuanghui Building, Guihua Community, Guanlan Street, Longhua District, ShenZhen, China General Description of EUT: Product Name: Smart Door Knob Trade Name / Model No.: D268 Adding Model(s): D500 Rated Voltage: DC Input 5V Battery 4.5V Power Adapter: / FCC ID: 2ASWV-D268 Equipment Type: Fixed device Technical Characteristics of EUT: Bluetooth Bluetooth Version: V5.4 (LE mode) Frequency Range: 2402-2480MHz RF Output Power: 5.78dBm (Conducted) Data Rate: 1Mbps Modulation: GFSK Quantity of Channels: 40 Channel Separation: 2MHz Type of Antenna: Chip Antenna Antenna Gain: 0.8dBi 1.2 RF Exposure Exemption According to §2.1091, §1.1307(b)(3) and KDB 447498 D04 Interim General RF Exposure Guidance v01, system operating under the provisions of this section shall be operating in a manner that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. Option A: FCC Rule Part 1.1307 (b)(3)(i)(A):The available maximum time-averaged power is no more than 1mW, regardless of separation distance. Option B: FCC Rule Part 1.1307 (b)(3)(i)(B): The available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold P th (mW) described in the following formula. P th is given by: Option C: FCC Rule Part 1.1307 (b)(3)(i)(C): The minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. R must be at least λ/2π, where λ is the free-space operating wavelength in meters. Single RF Sources Subject to Routine Environmental Evaluation RF Source frequency (MHz) Threshold ERP (watts) 0.3-1.34 1,920 R 2 1.34-30 3,450 R 2 /f 2 30-300 3.83 R 2 300-1,500 0.0128 R 2 f 1,500-100,000 19.2R 2 For Multiple RF sources: FCC Rule Part 1.1307(b)(3)(ii): (A) The available maximum time-averaged power of each source is no more than 1 mW and there is a separation distance of two centimeters between any portion of a radiating structure operating and the nearest portion of any other radiating structure in the same device, except if the sum of multiple sources is less than 1 mW during the time-averaging period, in which case they may be treated as a single source (separation is not required). (B) In the case of fixed RF sources operating in the same time-averaging period, or of multiple mobile or portable RF sources within a device operating in the same time averaging period, if the sum of the fractional contributions to the applicable thresholds is less than or equal to 1 as indicated in the following equation. 1.3 Calculated Result Radio Access Technology Prediction Frequency Output Power Antenna Gain Duty Cycle Tune-Up Time-Averaged Power ERP (MHz) (dBm) (dBi) (%) (dBm) (dBm) Bluetooth 2402 5.78 0.8 100 6.00 4.65 Frequency Option Min. Distance Max. Power Exposure Limit Ratio Result (MHz) (cm) (dBm) (mW) (mW) Pass/Fail 2402 C 20.00 4.65 2.92 768.00 0.01 Pass Note: 1. Time-Averaged Power=Output Power * Duty Cycle; ERP= Time-Averaged Power+ Antenna gain-2.15dB 2. Option A, B and C refers as clause 1.2. 3. For option B, Max (time-averaged power, effective radiated power (ERP)) converts to Max. Power. For option C, ERP converts to Max. Power; 4. For option B, P th (mW) converts to Exposure Limit (mW); For option C, ERP (W) converts to Exposure Limit (mW). 5. Ratio= Tune-Up ERP (mW)/ Exposure Limit (mW) Mode for Simultaneous Multi-band Transmission: Radio Access Technology Ratio 1 Ratio 2 Simultaneous Ratio Limit Result Pass/Fail -- -- -- -- -- -- Result: Pass

Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 1 of 44 TEST REPORT Reference No. ....................: WTX26X06160513W001 FCC ID ............................... .: 2ASWV-D268 Applicant .......................... .: Shenzhen LINGDU Auto Electronics Co., Ltd. Address ............................ .: Room2901, Unit 1, Building 1, Lechuanghui Building, Guihua Community, Guanlan Street, Longhua District, ShenZhen, China Manufacturer .................... .: The same as Applicant Address ............................ .: The same as Applicant Product Name .................. .: Smart Door Knob Model No.. ......................... .: D268 Standards ......................... .: FCC Part 15.247 Date of Receipt sample ... .: 2026-06-04 Date of Test....................... .: 2026-06-10 to 2026-06-26 Date of Issue .................... .: 2026-07-01 Test Report Form No. ...... . : WTX_Part 15_247W Test Result ........................ .: Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of approver. Prepared By: Waltek Testing Group (Shenzhen) Co., Ltd. Address: 1/F., Room 101, Building 1, Hongwei Industrial Park, Liuxian 2nd Road, Block 70 Bao'an District, Shenzhen, Guangdong, China Tel.: +86-755-33663308 Fax.: +86-755-33663309 Email: [email protected] Tested by: Approved by: Gala Wang/Project Engineer Jason Su/Manager Reference No.: WTX26X06160513W001 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 2 of 44 TABLE OF CONTENTS 1. GENERAL INFORMATION .................................................................................................................................... 4 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ......................................................................... 4 1.2 TEST STANDARDS ................................................................................................................................................. 5 1.3 TEST METHODOLOGY ........................................................................................................................................... 5 1.4 TEST FACILITY ...................................................................................................................................................... 5 1.5 EUT SETUP AND TEST MODE .............................................................................................................................. 6 1.6 MEASUREMENT UNCERTAINTY ............................................................................................................................. 7 1.7 TEST EQUIPMENT LIST AND DETAILS ................................................................................................................... 8 2. SUMMARY OF TEST RESULTS ......................................................................................................................... 12 3. ANTENNA REQUIREMENT ................................................................................................................................. 13 3.1 STANDARD APPLICABLE ..................................................................................................................................... 13 3.2 EVALUATION INFORMATION ................................................................................................................................ 13 4. POWER SPECTRAL DENSITY ........................................................................................................................... 14 4.1 STANDARD APPLICABLE ..................................................................................................................................... 14 4.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................................... 14 4.3 TEST PROCEDURE .............................................................................................................................................. 14 4.4 SUMMARY OF TEST RESULTS/PLOTS ................................................................................................................. 14 5. DTS BANDWIDTH ................................................................................................................................................. 15 5.1 STANDARD APPLICABLE ..................................................................................................................................... 15 5.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................................... 15 5.3 TEST PROCEDURE .............................................................................................................................................. 15 5.4 SUMMARY OF TEST RESULTS/PLOTS ................................................................................................................. 15 6. RF OUTPUT POWER ............................................................................................................................................ 16 6.1 STANDARD APPLICABLE ..................................................................................................................................... 16 6.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................................... 16 6.3 TEST PROCEDURE .............................................................................................................................................. 16 6.4 SUMMARY OF TEST RESULTS/PLOTS ................................................................................................................. 16 7. FIELD STRENGTH OF SPU…

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Antenna Specification 1. General Description Manufacturer: Shenzhen Jiexuntong Wireless Technology Co., Ltd. Address: Room A-409, 425-426, Tong'an Logistics Information Port, No. 30, Aviation Road, Gushu, Bao'an District, Shenzhen Product Name: Smart Door Knob Product model: D268 Antenna type: CHIP Antenna, Test Frequency: 2400-2500MHz Peak gain: (dBi) 0.8 2. Dimension and Terminal Configuration 3. Radiation 2400 MHz