2AQ3A-SF270CR2422REMOTE

ShenzhenVanTopTechnology&InnovationCo.,Ltd. 506,BLDG4,PingshanminQiTechnologyPark,No.65LishanRoad,PingshanCommunity, TaoyuanStreet,NanshanDistrict,Shenzhen,China Tel:+86-755-84652162 Fax: +86-755-84652162 E-mail:[email protected] CFR47§2.911(d)(5)(i)AttestationLetter AttestationLetter Date:09/25/2023 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsCFR47§2.911(d)(5)(i)Filing FCCID:2AQ3A-SF270CR2422 ShenzhenVanTopTechnology&InnovationCo.,Ltd.certifiesthattheequipmentforwhich authorizationissought,isnot “covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. Sincerely, Signature: ContactPerson:DavyWong Title:ProjectManager

ShenzhenVanTopTechnology&InnovationCo.,Ltd. 506,BLDG4,PingshanminQiTechnologyPark,No.65LishanRoad,PingshanCommunity, TaoyuanStreet,NanshanDistrict,Shenzhen,China Tel:+86-755-84652162 Fax: +86-755-84652162 E-mail:[email protected] CFR47§2.911(d)(5)(ii)AttestationLetter AttestationLetter Date:09/25/2023 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsCFR47§2.911(d)(5)(ii)Filing FCCID:2AQ3A-SF270CR2422 ShenzhenVanTopTechnology&InnovationCo.,Ltd.certifiesthatasofthedateofthefilingof theapplication,theapplicantisnot identifiedontheCoveredListasanentityproducing “covered”equipment. Sincerely, Signature: ContactPerson:DavyWong Title:ProjectManager

U.S.AGENTLETTEROFATTESTATION Date:2023-09-25 FEDERALCOMMUNICATIONSCOMMISSION AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsCFR47§2.911(d)(7)Filing FCCID:2AQ3A-SF270CR2422 ShenzhenVanTopTechnology&InnovationCo.,Ltd.certifiesthat,asofthedateofthe filingoftheapplication,MARIANATRADINGINC.isourdesignatedU.S.agentfor serviceofprocessfortheabovereferencedFCCID.ShenzhenVanTopTechnology& InnovationCo.,Ltd.acceptstomaintainanagentfornolessthanoneyearafterthegrantee hasterminatedallmarketingandimportationortheconclusionofanyCommission-related proceedinginvolvingtheequipment. MARIANATRADINGINC.accepts,asofthedateofthefilingoftheapplication,the obligationofthedesignatedU.S.agentforserviceofprocessfortheabovereferencedFCC ID. DesignatedU.S.AgentInformation: Name:MARIANATRADINGINC. Address:15173Winesapdr.NorthPotomac,,MD20878UnitedStates FRN:0033598392 Tel.:(301)477-1900 Email:[email protected] Signedby(printedname):KaKiKarieLuk Signature: Applicant:ShenzhenVanTopTechnology&InnovationCo.,Ltd. Address:506,BLDG4,PingshanminQiTechnologyPark,No.65LishanRoad,Pingshan Community,TaoyuanStreet,NanshanDistrict,Shenzhen,China FRN:0027808500 Tel:+86-755-84652162 Email:[email protected] Signedby(printedname):DavyWong Signature:

ShenzhenVanTopTechnology&InnovationCo.,Ltd. 506,BLDG4,PingshanminQiTechnologyPark,No.65LishanRoad,PingshanCommunity, TaoyuanStreet,NanshanDistrict,Shenzhen,China Tel:+86-755-84652162 Fax: +86-755-84652162 E-mail:[email protected] FCCConfidentialAuthorization Date:2023-9-25 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:ConfidentialityRequestregardingapplicationforcertificationof FCCID:2AQ3A-SF270CR2422 InaccordancewithSections0.457and0.459oftheShenzhenVanTopTechnology& InnovationCo.,Ltd.herebyrequestslong-termconfidentialtreatmentofinformation accompanyingthisapplicationasoutlinedbelow: BlockDiagram Schematics OperationDescription Theabovematerialscontainproprietaryandconfidentialinformationnotcustomarily releasedtothepublic.Thepublicdisclosureofthesematerialsprovidesunjustified benefitstoitscompetitorsinthemarket. SincerelyYours, Signature: PrintedName:DavyWong Title:ProjectManager

ShenzhenVanTopTechnology&InnovationCo.,Ltd. 506,BLDG4,PingshanminQiTechnologyPark,No.65LishanRoad,PingshanCommunity, TaoyuanStreet,NanshanDistrict,Shenzhen,China Tel:+86-755-84652162 Fax:+86-755-84652162 E-mail:[email protected] QA-FR-170-B7/29/2014 FCCAuthorization Date:2023-09-25 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:AgentAuthorization Towhomitmayconcern: WeShenzhenVanTopTechnology&InnovationCo.,Ltd.,theundersigned,hereby authorizesChinaCertificationICTCo.,Ltd(Dongguan)toactonitsbehalfinallmatters relatingtoapplicationforEquipmentauthorization,includingthesigningofall documentsrelatingtothesematters.AllactscarriedoutbyChinaCertificationICTCo., Ltd(Dongguan),Ltd.onourbehalfshallhavethesameeffectasourownaction. We,theundersigned,herebycertifythatwearenotsubjecttoadenialoffederalbenefits, thatincludesFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988, 21U.S.C.862. Thisauthorizationisvaliduntilfurtherwrittennoticefromtheapplicant. SincerelyYours, Signature: PrintedName:DavyWong Title:ProjectManager

ShenzhenVanTopTechnology&InnovationCo.,Ltd. 506,BLDG4,PingshanminQiTechnologyPark,No.65LishanRoad,Pingshan Community,TaoyuanStreet,NanshanDistrict,Shenzhen,China Tel:+86-755-84652162 Fax:+86-755-84652162 E-mail:[email protected] Date:2023-09-25 SimilarityDeclaration FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 DearSirorMadam, We,ShenzhenVanTopTechnology&InnovationCo.,Ltd.herebydeclarethatwe haveaproductnamedasREMOTE,FCCID:2AQ3A-SF270CR2422, themodels:DR-SF270C,DR-SF170C,AF-KT10B,AF-KT20B.Allofthemodelsare thesameexceptmodelname. Weconfirmthatallinformationaboveistrue,andwe’llberesponsibleforallthe consequences.Pleasecontactmeifyouhaveanyquestion. SincerelyYours, Signature: PrintedName:DavyWong Title:ProjectManager

China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-EXP Page 1 of 5 EUT EXTERNAL PHOTOGRAPHS China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-EXP Page 2 of 5 China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-EXP Page 3 of 5 China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-EXP Page 4 of 5 China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-EXP Page 5 of 5

China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-INP Page 1 of 6 EUT INTERNAL PHOTOGRAPHS China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-INP Page 2 of 6 China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-INP Page 3 of 6 China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-INP Page 4 of 6 China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-INP Page 5 of 6 China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-INP Page 6 of 6 ANT

China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-00 Page 30 of 32 5. RF EXPOSURE EVALUATION 5.1.1 Applicable Standard FCC §1.1307(b)(3)(i)(A) a single RF source is exempt RF device (from the requirement to show data demonstrating compliance to RF exposure limits, as previously mentioned) if the available maximum time-averaged power is no more than 1 mW, regardless of separation distance. 5.1.2 Procedure According to 447498 D04 Interim General RF Exposure Guidance v01, clause 2.1.2- 1-mW Test Exemption: Per §1.1307(b)(3)(i)(A), a single RF source is exempt RF device (from the requirement to show data demonstrating compliance to RF exposure limits, as previously mentioned) if the available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption applies to all operating configurations and exposure conditions, for the frequency range 100 kHz to 100 GHz, regardless of fixed, mobile, or portable device exposure conditions. This is a standalone exemption, and it cannot be applied in conjunction with any other test exemption. 5.1.3 Measurement Result Frequency (MHz) Maximum Power 1-mW Test Exemption dBm mW 2440-2475 -1.91 0.64 Compliant Note: 1. This device maximum E-Field level is 95.38dBμV/m at 3m, so the EIRP power is 0.18dBm, Antenna Gain is 2.09dBi, so the Maximum Conduct Power is –1.91dBm and ERP is -1.97dBm. 2. EIRP(dBm)=Field Strength of Fundamental(dBuV/m)-95.2 (dB), Maximum Conduct Power (dBm)= EIRP(dBm)- Antenna Gain(dBi) Result: Compliant. RF Exposure is exemption.

Dongguan Lixinwei Electronics Co., Ltd Antenna Specification for Approval Customer Name： Ke yu Address： Product Name: 2.4GHZ copper tube antenna Part NO.: C113H-BT450-90R Write By： Zhou Min Issued Date: 2021-12-13 Customer: R&D Dept usiness Dept Approved By Supplier R&D Dept Engineer Dept Approval Ni Sheng Zhang Ming xiong Product Specification A. Electrical Characteristics Frequency 2400MHz ~2500MHz VSWR <2.0 Efficiency >75% Impedance 50 Ohm Polarization Line Gain 2.09DBi B. Material & Mechanical Characteristics Material of Radiator Cu Cable Type 1.13 grey Connector Type : NO Dimension C. Environmental Operation Temperature - 30 °C ~ + 80 °C Storage Temperature - 30 °C ~ + 85 °C Test Equipment & Conditions 1． Network Analyzers : Agilent 8753D 5071B 2． Communications Test Set: Agilent E5515C 3． 3D Chamber Test System Effiency &Gain Freq Effi Gain (MHz) (%%) (dBi) 2400 76.45 2.02 2410 74.46 2.06 2420 74.58 2.01 2430 72.59 2.06 2440 66.69 2.03 2450 72.16 2.03 2460 71.67 2.09 2470 72.96 2.00 2480 72.45 2.00 2490 68.43 2.05 2500 76.68 2.09 S11 Radiation Pattern: XYXZ YZ 2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500

TEST REPORT Applicant: Shenzhen VanTop Technology & Innovation Co., Ltd. Address: 506,BLDG 4,Pingshan minQi Technology Park, No. 65 Lishan Road, Pingshan Community,Taoyuan Street, Nanshan District, Shenzhen, China FCC ID: 2AQ3A-SF270CR2422 Product Name: REMOTE Standard(s): 47 CFR Part 15, Subpart C(15.249) ANSI C63.10-2013 The above equipment has been tested and found compliant with the requirement of the relative standards by China Certification ICT Co., Ltd (Dongguan) Report Number: CR230741597-00 Date Of Issue: 2023/9/26 Reviewed By: Calvin Chen Title: RF Engineer Approved By: Sun Zhong Title: Manager Test Laboratory: China Certification ICT Co., Ltd (Dongguan) No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China Tel: +86-769-82016888 China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-00 Page 2 of 32 Test Facility The Test site used by China Certification ICT Co., Ltd (Dongguan) to collect test data is located on the No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China. The lab has been recognized as the FCC accredited lab under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 442868, the FCC Designation No. : CN1314. The lab has been recognized by Innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements, the CAB identifier: CN0123. Declarations China Certification ICT Co., Ltd (Dongguan) is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with a triangle symbol “▲”. Customer model name, addresses, names, trademarks etc. are not considered data. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report cannot be reproduced except in full, without prior written approval of the Company. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. This report may contain data that are not covered by the accreditation scope and shall be marked with an asterisk “★”. China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-00 Page 3 of 32 CONTENTS TEST FACILITY .......................................................................................................................................... 2 DECLARATIONS .......................................................................................................................................... 2 DOCUMENT REVISION HISTORY .......................................................................................... 5 1. GENERAL INFORMATION .................................................................................................... 6 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................... 6 1.2 DESCRIPTION OF TEST CONFIGURATION ........................................................................................... 7 1.2.2 Support Equipment List and Details .............................................................................................................. 7 1.2.3 Support Cable List and Details ...................................................................................................................... 7 1.2.4 Block Diagram of Test Setup ......................................................................................................................... 7 1.3 MEASUREMENT UNCERTAINTY .......................................................................................................... 9 2. SUMMARY OF TEST RESULTS .......................................................................................... 10 3. REQUIREMENTS AND TEST PROCEDURES .................................................................. 11 3.1 AC LINE CONDUCTED EMISSIONS .................................................................................................... 11 3.1.1 Applicable Standard ..................................................................................................................................... 11 3.1.2 EUT Setup.................................................................................................................................................... 12 3.1.3 EMI Test Receiver Setup ............................................................................................................................. 12 3.1.4 Test Procedure ............................................................................................................................................. 13 3.1.5 Corrected Amplitude & Margin Calculation ................................................................................................ 13 3.2 RADIATED EMISSIONS ....................................................................................................................... 14 3.2.1 Applicable Standard ..................................................................................................................................... 14 3.2.2 EUT Setup.................................................................................................................................................... 14 3.2.3 EMI Test Receiver & Spectrum Analyzer Setup ......................................................................................... 15 3.2.4 Test Procedure ............................................................................................................................................. 15 3.2.5 Corrected Amplitude & Margin Calculation ................................................................................................ 16 3.3 20 DB EMISSION BANDWIDTH ........................................................................................................... 17 3.3.1 Applicable Standard .................................................................…

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China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-00-TSP TEST SETUP PHOTOGRAPHS Conducted Emissions Front View Conducted Emissions Side View China Certification ICT Co., Ltd (Dongguan) Report No.: CR230741597-00-TSP Radiated Emission Below 1GHz View Radiated Emission Above 1GHz View