2AQMU-HC752RC DRONE

HUACAI KEYI INDUSTRY COMMERCE CO.,LTD. Covered Equipment Certification Attestation Letter 6/21/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2AQMU-HC752 HUACAI KEYI INDUSTRY COMMERCE CO.,LTD. certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. HUACAI KEYI INDUSTRY COMMERCE CO.,LTD. certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Signed: Printed name: Andy Rui Title: manager Company Name: HUACAI KEYI INDUSTRY COMMERCE CO.,LTD. Date: 6/21/2023

HUACAI KEYI INDUSTRY COMMERCE CO.,LTD. * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 6/21/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2AQMU-HC752 FRN of applicant: 0027700749 Per section 2.911(d)(7) of the FCC rules, HUACAI KEYI INDUSTRY COMMERCE CO.,LTD. certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: Baihetian Innovative Solutions FCC Registration Number(FRN): 0033401605 Physical U.S. Company Address: 6837 Chase Rd, Dearborn, MI 48126, USA Contact Person: Kenneth Young Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed: Signed: Printed name: Andy Rui Title: manager Company Name: HUACAI KEYI INDUSTRY COMMERCE CO.,LTD. Date: 6/21/2023 Agent Signed (if different to Applicant): Signed: Printed name: Kenneth Young Title: Manager Company Name: Baihetian Innovative Solutions Date: 6/21/2023

DATE : 2023-06-21 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Jason Wu of Global United Technology Services Co., Ltd.and No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with HUACAI KEYI INDUSTRY COMMERCE CO.,LTD.and The North of the Middle Section of Guangyi Road, Chenghai, Shantou, China Signature: Name: Andy Rui Title: manager Company: HUACAI KEYI INDUSTRY COMMERCE CO.,LTD.

HUACAI KEYI INDUSTRY COMMERCE CO.,LTD. DATE : 2023-06-21 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AQMU-HC752 Product Name: RC DRONE Request for Confidentiality To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuantto KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Signature: Name: Andy Rui Title: manager

Differences Declaration To whom concern, We company HUACAI KEYI INDUSTRY COMMERCE CO.,LTD. hereby declares: The product models SMPTC-90033, SMPTC-90041, 6182-2BGA, 6182-2BGAA, 6182-4RF, HC612, HC613, HC615, HC616, HC617, HC622, HC623, HC631, HC632, HC632W, HC635, HC650, HC653, HC657, HC657S, HC658, HC670, HC671, HC672, HC673, HC675, HC676, HC676W, HC676S, HC677, HC690, HC691, HC692, HC693, HC695, HC696, HC697, HC698, HC699, HC700, HC701, HC702, HC706, HC707, HC708, HC709, HC710, HC711, HC715, HC720, HC721, HC722, HC723, HC725, HC726, HC727, HC728, HC729, HC730, HC819, HC733, HC735, HC752, HC753, HC755, HC758, HC759, HC760, HC762, HC763, HC765, HC766, HC767, HC768, HC769, HC770, HC771, HC772, HC773, HC765, HC766, HC767, HC768, HC769, HC770, HC771, HC772, HC773, HC779, HC780, HC781, HC782, HC783, HC785, HC786, HC787, HC788, HC789, HC790 are identical in the same PCB layout, interior structure and electrical circuits, The differences are appearance color and model name for commercial purpose. Authorized signature: Date: 2023-06-21

Test Model No.: HC752

Test Model No.: HC752

FCC ID: 2AQMU-HC752 RF Exposure evaluation According to 447498 D04 Interim General RF Exposure Guidance v01 eirp = pt x gt = (EXd) 2 /30 where: pt = transmitter output power in watts, gt = numeric gain of the transmitting antenna (unitless), E = electric field strength in V/m, --- 10 ((dBuV/m)/20) /10 6 d = measurement distance in meters (m)---3m Sopt = (EXd) 2 /30 x gt Frequency(MHz) Field Strength (dBuv/m) antenna gain(dBi) numeric gain calc. Pt (mW) erp(mW) limit (mW) min. distance (cm) 2440.00 81.74 0.17 1.04 0.04 0.03 2.75 0.50 WORSE CASE 0.04mW<2.75mW Then SAR evaluation is not required

Global United Technology Services Co., Ltd. Report No.: GTS2023060245F01 Authorized Signature: Robinson Luo Laboratory Manager This 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 compiler and approver. Page 1 of 32 TEST REPORT Applicant: HUACAI KEYI INDUSTRY COMMERCE CO.,LTD. Address of Applicant: The North of the Middle Section of Guangyi Road, Chenghai, Shantou, China Manufacturer: HUACAI KEYI INDUSTRY COMMERCE CO.,LTD. Address of Manufacturer: The North of the Middle Section of Guangyi Road, Chenghai, Shantou, China Equipment Under Test (EUT) Product Name: RC DRONE Model No.: See section 5.1 FCC ID: 2AQMU-HC752 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.249 Date of sample receipt: June 12, 2023 Date of Test: June 13-21, 2023 Date of report issued: June 21, 2023 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: GTS2023060245F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 32 2 Version Version No. Date Description 00 June 21, 2023 Original Prepared By: Date: June 21, 2023 Project Engineer Check By: Date: June 21, 2023 Reviewer Report No.: GTS2023060245F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 32 3 Contents Page 1 COVER PAGE ............................................................................................................................................ 1 2 VERSION .................................................................................................................................................. 2 3 CONTENTS .............................................................................................................................................. 3 4 TEST SUMMARY ..................................................................................................................................... 4 4.1 MEASUREMENT UNCERTAINTY ............................................................................................................ 4 5 GENERAL INFORMATION ...................................................................................................................... 5 5.1 GENERAL DESCRIPTION OF EUT ......................................................................................................... 5 5.2 TEST MODE ........................................................................................................................................ 7 5.3 DESCRIPTION OF SUPPORT UNITS ....................................................................................................... 7 5.4 DEVIATION FROM STANDARDS ............................................................................................................. 7 5.5 ABNORMALITIES FROM STANDARD CONDITIONS ................................................................................... 7 5.6 TEST FACILITY .................................................................................................................................... 7 5.7 TEST LOCATION ................................................................................................................................. 7 5.8 ADDITIONAL INSTRUCTIONS ................................................................................................................. 7 6 TEST INSTRUMENTS LIST ..................................................................................................................... 8 7 TEST RESULTS AND MEASUREMENT DATA .................................................................................... 10 7.1 ANTENNA REQUIREMENT ................................................................................................................... 10 7.2 RADIATED EMISSION METHOD ........................................................................................................... 11 7.2.1 Field Strength of The Fundamental Signal ................................................................................ 13 7.2.2 Spurious emissions .................................................................................................................... 14 7.2.3 Bandedge emissions.................................................................................................................. 26 7.3 20DB OCCUPY BANDWIDTH .............................................................................................................. 30 8 TEST SETUP PHOTO ............................................................................................................................ 32 9 EUT CONSTRUCTIONAL DETAILS ..................................................................................................... 32 Report No.: GTS2023060245F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 4 of 32 4 Test Summary Test Item Section in CFR 47 Result Antenna requirement 15.203 Pass AC Power Line Conducted Emission 15.207 N/A Field strength of the fundamental signal 15.249 (a) Pass Spurious emissions 15.249 (a) (d)/15.209 Pass Band edge 15.249 (d)/15.205 Pass 20dB Occupied Bandwidth 15.215 (c) Pass Remarks: 1. Test according to ANSI C63.10:2013. 2. Pass: The EUT complies with the essenti…

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深圳市利信辉电子有限公司 天线规格承认书 Antenna Specification for Approval 客户名称 CustomerName 产品名称： ProductName ：2.4G天线 全长35mm 客户型号： ProductName: 产品料号： PartNO.: C10 -35-2.5 制表： WriteBy： 敏 日期： IssuedDate: 客 户: 工程R&D Dept采购Business Dept承认 Approved By 利 信 辉 研发R&D Dept 工程 Engineer Dept 审核 Approval ： O 9625 机 瞄 ㄩ C H E C K I N G 錨 璃 晤 瘍 ㄩ P A R T N O . 錨 璃 靡 備 ㄩ P A R T T I T L E D A T E   ㄩ 掀 瞰 ㄩ 等 弇 ㄩ S C A L MATER IAL 第 蹋ㄩ DRWING 秶芞 ㄩ E U N I T I N V E R . 唳 棒 ㄩ 鼎 茼 妀  靡 ㄩ S U P P L I E R C F M    趼 揭 杅 載 蜊 囀  梓 暮 Product Specification A.Electrical Characteristics Frequency 2400MHz ~2500MHz VSWR <3.0 Efficiency >30% Impedance 50 Ohm Polarization Line Gain 0.17 dBi B.Material & Mechanical Characteristics Material of Radiator Cu Cable Type 1.0 19P 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 Effiency &Gain 2.40 -0.00 2.440 -0.11 2.48 -0.13 Radiation Pattern:

Test Model No.: HC752 Radiated Emission