2AQ3A-SG500CR2422REMOTE

Shenzhen VanTop Technology & Innovation Co., Ltd. 506, BLDG 4, MinQi Technology Park, No. 65 Lishan Road, Pingshan Community,Taoyuan Street, Nanshan District, Shenzhen, China Tel: +86-755-84652162 Fax: +86-755-84652162 E-mail: [email protected] Attestation Letter Date: 2023-03-29 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Our product: REMOTE; Model: DR-SG500C, DR-SG500E, DR-SG500F, FCC ID: 2AQ3A-SG500CR2422; For marketing purpose, this product only support 2.4G FHSS(2405-2478MHz), The other bands were disabled by manufacturer though software, the end user has no capability to activate it. We confirm that all information above is true, and we’ll be responsible for all the consequences. Please contact me if you have any question. Sincerely Yours, Sincerely Yours, Signature: Printed Name: Davy Wong Title: Product Director

ShenzhenVanTopTechnology&InnovationCo.,Ltd. 506,BLDG4,MinQiTechnologyPark,No.65LishanRoad,PingshanCommunity,Taoyuan Street,NanshanDistrict,Shenzhen,China Tel:+86-755-84652162 Fax:+86-755-84652162 E-mail:[email protected] CFR47§2.911(d)(5)(i)AttestationLetter AttestationLetter Date:03/29/2023 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsCFR47§2.911(d)(5)(i)Filing FCCID:2AQ3A-SG500CR2422 ShenzhenVanTopTechnology&InnovationCo.,Ltd.certifiesthattheequipmentforwhich authorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipment authorizationpursuanttosection2.903oftheFCCrules. Sincerely, Signature ContactPerson:DavyWong Title:ProductDirector CompanyName&Address:ShenzhenVanTopTechnology&InnovationCo.,Ltd. 506,BLDG4,MinQiTechnologyPark,No.65LishanRoad,PingshanCommunity,Taoyuan Street,NanshanDistrict,Shenzhen,China

ShenzhenVanTopTechnology&InnovationCo.,Ltd. 506,BLDG4,MinQiTechnologyPark,No.65LishanRoad,PingshanCommunity,Taoyuan Street,NanshanDistrict,Shenzhen,China Tel:+86-755-84652162 Fax:+86-755-84652162 E-mail:[email protected] CFR47§2.911(d)(5)(ii)AttestationLetter AttestationLetter Date:03/29/2023 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsCFR47§2.911(d)(5)(ii)Filing FCCID:2AQ3A-SG500CR2422 ShenzhenVanTopTechnology&InnovationCo.,Ltd.certifiesthatasofthedateofthefilingof theapplication,theapplicantisnotidentifiedontheCoveredListasanentityproducing “covered”equipment. Sincerely, Signature ContactPerson:DavyWong Title:ProductDirector CompanyName&Address:ShenzhenVanTopTechnology&InnovationCo.,Ltd. 506,BLDG4,MinQiTechnologyPark,No.65LishanRoad,PingshanCommunity,Taoyuan Street,NanshanDistrict,Shenzhen,China

U.S.AGENTLETTEROFATTESTATION Date:2023-03-29 FEDERALCOMMUNICATIONSCOMMISSION AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsCFR47§2.911(d)(7)Filing FCCID:2AQ3A-SG500CR2422 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,MinQiTechnologyPark,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,MinQiTechnologyPark,No.65LishanRoad,PingshanCommunity,Taoyuan Street,NanshanDistrict,Shenzhen,China Tel:+86-755-84652162 Fax:+86-755-84652162 E-mail:[email protected] QA-FR-170-B7/29/2014 FCCAuthorization Date:2023-03-29 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:AgentAuthorization Towhomitmayconcern: WeShenzhenVanTopTechnology&InnovationCo.,Ltd.,theundersigned,hereby authorizesShenzhenAccurateTechnologyCo.,Ltd.toactonitsbehalfinallmatters relatingtoapplicationforEquipmentauthorization,includingthesigningofall documentsrelatingtothesematters.AllactscarriedoutbyShenzhenAccurate TechnologyCo.,Ltd.onourbehalfshallhavethesameeffectasourownaction. We,theundersigned,herebycertifythatwearenotsubjecttoadenialoffederalbenefits, thatincludesFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988, 21U.S.C.862. Thisauthorizationisvaliduntilfurtherwrittennoticefromtheapplicant. SincerelyYours, Signature: PrintedName:DavyWong Title:ProductDirector

ShenzhenVanTopTechnology&InnovationCo.,Ltd. 506,BLDG4,MinQiTechnologyPark,No.65LishanRoad,PingshanCommunity,Taoyuan Street,NanshanDistrict,Shenzhen,China Tel:+86-755-84652162 Fax:+86-755-84652162 E-mail:[email protected] FCCConfidentialAuthorization Date:2023-03-29 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:ConfidentialityRequestregardingapplicationforcertificationof FCCID:2AQ3A-SG500CR2422 InaccordancewithSections0.457and0.459oftheShenzhenVanTopTechnology& InnovationCo.,Ltd.herebyrequestslong-termconfidentialtreatmentofinformation accompanyingthisapplicationasoutlinedbelow: BlockDiagram Schematics OperationDescription Theabovematerialscontainproprietaryandconfidentialinformationnotcustomarily releasedtothepublic.Thepublicdisclosureofthesematerialsprovidesunjustified benefitstoitscompetitorsinthemarket. SincerelyYours, Signature: PrintedName:DavyWong Title:ProductDirector

ShenzhenVanTopTechnology&InnovationCo.,Ltd. 506,BLDG4,MinQiTechnologyPark,No.65LishanRoad,PingshanCommunity,Taoyuan Street,NanshanDistrict,Shenzhen,China Tel:+86-755-84652162 Fax:+86-755-84652162 E-mail:[email protected] Date:2023-03-29 SimilarityDeclaration FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 DearSirorMadam, We,ShenzhenVanTopTechnology&InnovationCo.,Ltd.herebydeclarethatwe haveaproductnamedasREMOTE,FCCID:2AQ3A-SG500CR2422, themodels:DR-SG500C,DR-SG500E,DR-SG500F.Allofthemodelsarethesame exceptmodelname. Weconfirmthatallinformationaboveistrue,andwe’llberesponsibleforallthe consequences.Pleasecontactmeifyouhaveanyquestion. SincerelyYours, Signature: PrintedName:DavyWong Title:ProductDirector

Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AQ3A-SG500CR2422 External Photos Page 1 of 4 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AQ3A-SG500CR2422 External Photos Page 2 of 4 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AQ3A-SG500CR2422 External Photos Page 3 of 4 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AQ3A-SG500CR2422 External Photos Page 4 of 4

Shenzhen Accurate Technology Co., Ltd. Project No.: RA230110-01784E-RF LABEL AND LOCATION Page 1 of 1 FCC ID LABEL AND LOCATION FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Shenzhen Accurate Technology Co., Ltd. FCC ID : 2AQ3A-SG500CR2422 Internal Photos Page 1 of 11 Shenzhen Accurate Technology Co., Ltd. FCC ID : 2AQ3A-SG500CR2422 Internal Photos Page 2 of 11 Shenzhen Accurate Technology Co., Ltd. FCC ID : 2AQ3A-SG500CR2422 Internal Photos Page 3 of 11 Shenzhen Accurate Technology Co., Ltd. FCC ID : 2AQ3A-SG500CR2422 Internal Photos Page 4 of 11 Shenzhen Accurate Technology Co., Ltd. FCC ID : 2AQ3A-SG500CR2422 Internal Photos Page 5 of 11 Shenzhen Accurate Technology Co., Ltd. FCC ID : 2AQ3A-SG500CR2422 Internal Photos Page 6 of 11 Shenzhen Accurate Technology Co., Ltd. FCC ID : 2AQ3A-SG500CR2422 Internal Photos Page 7 of 11 Shenzhen Accurate Technology Co., Ltd. FCC ID : 2AQ3A-SG500CR2422 Internal Photos Page 8 of 11 Shenzhen Accurate Technology Co., Ltd. FCC ID : 2AQ3A-SG500CR2422 Internal Photos Page 9 of 11 Shenzhen Accurate Technology Co., Ltd. FCC ID : 2AQ3A-SG500CR2422 Internal Photos Page 10 of 11 Shenzhen Accurate Technology Co., Ltd. FCC ID : 2AQ3A-SG500CR2422 Internal Photos Page 11 of 11 Antenna

Shenzhen Accurate Technology Co., Ltd. Report No.: RA230110-01784E-RF-00 Version 29: 2021-11-09 Page 11 of 38 FCC-FHSS FCC§15.247 (i), §1.1307 (b)(1)&§2.1093 – RF EXPOSURE Applicable Standard According to FCC §2.1093 and §1.1307(b)(1), systems operating under the provisions of this sectionshall be operated in a manner that ensure that the public is not exposed to radio frequency energylevel in excess of the Commission’s guideline. According to KDB 447498 D01 General RF Exposure Guidance 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 1. f(GHz) is the RF channel transmit frequency in GHz. 2. Power and distance are rounded to the nearest mW and mm before calculation. 3. The result is rounded to one decimal place for comparison. 4. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR testExclusion. Measurement Result For worst case: Frequency (MHz) Tune-up power (dBm) Tune-up power (mW) Distance (mm) Calculated value Threshold (1-g SAR) SAR Test Exclusion 2478 8.0 6.31 5.0 1.99 3.0 Yes Result: No SAR test is required

Dongguan Lixinwei Electronics Co., Ltd Antenna Specification for Approval Customer Name： Guangdong Shiji Technology Co., Ltd address： Address: No. 2 (5), Sanlian Longtan Area, Lianshang Town, Liannan Industrial Zone, Chenghai District, Shantou City Product Name: 2.4G antenna . 产品料号： Part NO.: C113H-IPXSG.T2401-360 . 制 表： Write By： Zhou Min . 日 期： Issued Date: 2022-12-1 . customer R&D Dept Business Dept Approved By supplier R&D Dept Engineer Dept Approval Product Specification A. Electrical Characteristics Frequency 2400MHz ~2500MHz VSWR <2.0 Efficiency >77.98% Impedance 50 Ohm Polarization Line B. Material & Mechanical Characteristics Material of Radiator Cu Cable Type 1.13 black Connector Type : IPEX1 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 Gain 2.29DBi Effiency &Gain Freq Effi Gain (MHz) (%%) (dBi) 2400 65.43 1.92 2410 64.45 1.95 2420 64.35 1.93 2430 62.37 1.96 2440 56.26 2.23 2450 66.40 2.23 2460 66.63 2.29 2470 62.74 1.96 2480 62.40 1.98 2490 58.31 1.95 2500 57.47 1.99 S11 Radiation Pattern: 2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500

★ Note: This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “ ”. Shenzhen Accurate Technology Co., Ltd. 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 an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. 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. Shenzhen Accurate Technology Co., Ltd. 1/F., Building A, Changyuan New Material Port, Science & Industry Park, Nanshan District, Shenzhen, Guangdong, P.R. China Tel: +86 755-26503290 Fax: +86 755-26503396 Web: www.atc-lab.com Version 29: 2021-11-09 Page 1 of 38 FCC-FHSS TEST REPORT Applicant Name : Shenzhen VanTop Technology & Innovation Co., Ltd. Address : 506, BLDG 4, MinQi Technology Park, No. 65 Lishan Road, Pingshan Community,Taoyuan Street, Nanshan District, Shenzhen, China Report Number : RA230110-01784E-RF-00 FCC ID: 2AQ3A-SG500CR2422 Test Standard (s) FCC PART 15.247 Sample Description Product Type: REMOTE Model No.: DR-SG500C Multiple Model(s) No.: DR-SG500E, DR-SG500F Trade Mark: N/A Date Received: 2023/01/10 Report Date: 2023/03/31 Test Result: Pass* * In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Nick Fang Candy Li EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: RA230110-01784E-RF-00 Version 29: 2021-11-09 Page 2 of 38 FCC-FHSS TABLE OF CONTENTS DOCUMENT REVISION HISTORY ......................................................................................................................... 4 GENERAL INFORMATION ....................................................................................................................................... 5 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 5 OBJECTIVE ................................................................................................................................................................... 5 TEST METHODOLOGY .................................................................................................................................................. 5 MEASUREMENT UNCERTAINTY .................................................................................................................................... 6 TEST FACILITY ............................................................................................................................................................. 6 SYSTEM TEST CONFIGURATION .......................................................................................................................... 7 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 7 EUT EXERCISE SOFTWARE .......................................................................................................................................... 7 SPECIAL ACCESSORIES ................................................................................................................................................. 7 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 9 TEST EQUIPMENT LIST ......................................................................................................................................... 10 FCC§15.247 (I), §1.1307 (B)(1)&§2.1093 – RF EXPOSURE ....................................................................................... 11 APPLICABLE STANDARD ............................................................................................................................................ 11 FCC §15.203 – ANTENNA REQUIREMENT .......................................................................................................... 12 APPLICABLE STANDARD ............................................................................................................................................ 12 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 12 FCC §15.205, §15.209 & §15.247(D) – RADIATED EMISSIONS .......................................................................... 13 APPLICABLE STANDARD ............................................................................................................................................ 13 EUT SETUP ................................................................................................................................................................ 13 EMI TEST RECEIVER & SPECTRUM ANALYZER SETUP .............................................................................................. 14 TEST PROCEDURE ...................................................................................................................................................... 14 CORRECTED FACTOR & MARGIN CALCULATION ....................................................................................................... 14 TEST DATA ................................................................................................................................................................ 14 FCC §15.247(A) (1)-CHANNEL SEPARATION TEST ............................…

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Shenzhen Accurate Technology Co., Ltd. Project No.: RA230110-01784E-RF Test Photos Page 1 of 1 Photo of Radiated Emission Measurement (Below 1G) Photo of Radiated Emission Measurement (Above 1G)