2ATYG-SH198333687BRemote control car series

WANG YONGFENG Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Aug. 13, 2020 Subject; Request for Confidentiality FCC ID: 2ATYG-SH198333687B 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 Parts List Operational Description Tune-up Procedure 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. Sincerely, Signature: Name: YONGFENG WANG Title: Manager

Model Difference Declaration To Whom It May Concern, We, WANG YONGFENG(Remote control car series) Trademark:N/A; Model Number: 336-87J, 36-86J, 336-88J, 336-89J, 336-90J, 336-73T, 336-74T, 336-63T, 336-70K, 336-71K, 336-68K, 336-69K, 336-73K, 336-74K, 336-80J, 336-81J, 336-82J , 336-83J, 336-85J, 336-91J, 336-92J, 336-93J, 336-94J, 336-95J, 336-96J, 336-97J, 336-98J, 336-99J, 336-129T, 336-130T, 336-56K, 336-57K, GHD249585, GHD249586, GHD249583, GHD249584, GHD357037, GHD357038, GHD357039, GHD357040, GHD357260; All model’s the function, s oftware and electric circuit are the same, only with a product color and model named different for commercial purpose. Test sample model: 336-87J . Please contact me if you have any question. Name: YONGFENG WANG Date: Aug. 13, 2020 Title: Manager Signature of applicant:

Annex A External Photos Report No.: HK2007292046-E Page 1 of 4 Report No.: HK2007292046-E Page 2 of 4 Report No.: HK2007292046-E Page 3 of 4 Report No.: HK2007292046-E Page 4 of 4

FCC ID LABEL: Ca. 5mm x 10mm Include in manual: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Label Location FCC ID: 2AT YG-SH198333687B

Annex B Internal Photos Report No.: HK2007292046-E Page 1 of 3 Report No.: HK2007292046-E Page 2 of 3 2.4G TX Antenna Report No.: HK2007292046-E Page 3 of 3

MPE ESTIMATION FCC ID: 2AWRU-AISRT301 1, Limit for General Population/ Uncontrolled Exposures Frequency Power density (mW/ cm 2 ) Averaging time(minutes) 300MHz----1.5GHz F/1500 30 1.5GHz---100GHz 1.0 30 Note: F= Frequency in MHz 2, Estimation Result 2.4G WIFI Mode Frequency (MHz) Max PK Output power(dBm) Tune Up Power(dBm) Max Tune Up power(mW) Antenna Gain(dBi) Antenna Gain (linear) MPE ( mW/cm²) WiFi 2462 -3.828 -3±1(-2) 0.63 0 1.0000 0.000125 Note: Note: The estimation distance is 20cm Note: PK Output power= conducted power. Conducted power see the test report HK2007292046-E, antenna gain=0dBi when the minimum test separation distance is >20 cm, a distance of 20 cm is applied to determine RF Exposure test exclusion. The test exclusion threshold is 0.000125 mW/cm² which is< 1.0mW/cm², RF Exposure testing is not required. -------The End-------

Page 1 of 43 Report No.: HK2007292046-E TEST REPORT FCC PART 15 SUBPART C 15.247 Test report On Behalf of WANG YONGFENG For Remote control car series Model No.: 336-87J, Please refer to page 8 for Serial models FCC ID: 2ATYG-SH198333687B Prepared for : WANG YONGFENG LIANXIA TOWN LIANFENG ROAD MIDDLE, CHENGHAI DISTRICT, SHANTOU, China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China Date of Test: Jul. 28, 2020 ~ Aug. 04, 2020 Date of Report: Aug. 04, 2020 Report Number: HK2007292046-E Page 2 of 43 Report No.: HK2007292046-E TEST RESULT CERTIFICATION Applicant’s name .................... : WANG YONGFENG Address .................................... : LIANXIA TOWN LIANFENG ROAD MIDDLE, CHENGHAI DISTRICT, SHANTOU, China Manufacture's Name ............... : WANG YONGFENG Address .................................... : LIANXIA TOWN LIANFENG ROAD MIDDLE, CHENGHAI DISTRICT, SHANTOU, China Product description Trade Mark: N/A Product name ............................. : Remote control car series Model and/or type reference ... : 336-87J, Please refer to page 8 for Serial models Standards ................................ : 47 CFR FCC Part 15 Subpart C 15.247 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ............................................... : Date (s) of performance of tests ................ : Jul. 28, 2020 ~ Aug. 04, 2020 Date of Issue ............................................. : Aug. 04, 2020 Test Result ................................................. : Pass Prepared by: Project Engineer Reviewed by: Project Supervisor Approved by: Technical Director Page 3 of 43 Report No.: HK2007292046-E Contents Page CONTENTS .............................................................................................................................................................. 3 1 TEST SUMMARY ............................................................................................................................................ 6 1.1 TEST DESCRIPTION ...................................................................................................................................... 6 1.2 MEASUREMENT UNCERTAINTY ...................................................................................................................... 7 2 TEST FACILITY ............................................................................................................................................... 8 3 GENERAL INFORMATION ............................................................................................................................. 8 3.1 GENERAL DESCRIPTION OF EUT .................................................................................................................. 8 3.2 DESCRIPTION OF TEST CONDITIONS ............................................................................................................ 10 3.3 DESCRIPTION OF TEST SETUP ........................................................................................................... 10 4 EQUIPMENTS LIST FOR ALL TEST ITEMS ............................................................................................... 11 5 TEST RESULT .............................................................................................................................................. 13 5.1 ANTENNA REQUIREMENT ............................................................................................................................ 13 5.1.1 Standard requirement ...................................................................................................................... 13 5.1.2 EUT Antenna ................................................................................................................................... 13 5.2 CONDUCTION EMISSIONS MEASUREMENT ................................................................................................... 14 5.2.1 Applied procedures / Limit ............................................................................................................... 14 5.2.2 Test procedure ................................................................................................................................. 14 5.2.3 Test setup ........................................................................................................................................ 15 5.2.4 Test results ...................................................................................................................................... 16 5.3 RADIATED EMISSIONS MEASUREMENT ........................................................................................................ 17 5.3.1 Applied procedures / Limit ............................................................................................................... 17 5.3.2 Test setup ........................................................................................................................................ 17 5.3.3 Test Result ....................................................................................................................................... 19 5.4 MAXIMUM OUTPUT POWER MEASUREMENT ................................................................................................. 26 5.4.1 Limit ................................................................................................................................................. 26 5.4.2 Test procedure ...........................................…

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Test Model：336-87J Radiated Emission