2AYHKYL-37REMOTE CONTROL

Mode switching key Function conversion Remote control car default function Forward - Backward - Turn Left - Turn Right 1.Click the mode switch key Forward - Backward - Drift Left - Drift Right 2.Click the mode switch key Automatic presentation Press mode button for 3 seconds to enter automatic demo mode (Press the function key once to restore the default mode) F requency band 2410 MHz ~ 2473 MHz Integrated Chipset RF2420 OSC 12MHz Channels 32CH Modulation GFSK Antenna 0dBi Antenna Type Internal Antenna FCC Warning Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interf erence in a residential in stallation. This equipment generates uses and ca n radiate radio frequency energy and, if not in stalled and used in accordance with the in structions, may cause harmful interf erence to radio communica tio ns. However, there is no guarantee that inter ference will not occur in a particular in stallation. If this equipment does cause harmful interf erence to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to corr ect the interference by one or more of the following measures: ‐‐ Reori ent or relocate the receiving antenna. ‐‐ Increase the separation between the equipment and receiver. ‐‐Connect the equipment into an outlet on a circuit different from that to which th e receiver is connected. ‐‐ Consult the dealer or an experienced radio/TV technician for help. This device complies with part 15 of the FCC Rules. Operation is subject to th e following two conditions: (1) This device may not ca use harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. The device has been evaluated to meet general RF exposure requirement.

LAKHANI BUSINESS INC DBA BEST LINK Agent Authorization Company: LAKHANI BUSINESS INC DBA BEST LINK Address: 7458 HARWIN DR. HOUSTON TEXAS 77036 USA Product Name: REMOTE CONTROL Model Number(s ): YL-37, 757-C334, 757-C337 Product Description: REMOTE CONTROL We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: Dec. 21, 2020 Name: Imran Lakhani Title: Officer Company: LAKHANI BUSINESS INC DBA BEST LINK

LAKHANI BUSINESS INC DBA BEST LINK Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Dec. 21, 2020 Subject; Request for Confidentiality FCC ID: 2AYHKYL-37 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: Imran Lakhani Title: Officer

Model Difference Declaration To Whom It May Concern, We, LAKHANI BUSINESS INC DBA BEST LINK（REMOTE CONTROL) Trademark:N/A; Model Number: YL-37, 757-C334, 757-C337; All model’s the function, software and electric circuit are the same, only with a product model named different.Test s ample model: YL-37 for commercial purpose. Please contact me if you have any question. Name: Imran Lakhani Date: Dec. 21, 2020 Title: Officer Signature of applicant:

Annex A External Photos Report No.: HK2011093755-E Page 1 of 4 Report No.: HK2011093755-E Page 2 of 4 Report No.: HK2011093755-E Page 3 of 4 Report No.: HK2011093755-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: 2AYHKYL-37

Annex B Internal Photos Report No.: HK2011093755-E Page 1 of 3 Report No.: HK2011093755-E Page 2 of 3 2.4G Antenna Report No.: HK2011093755-E Page 3 of 3

FCC RF Exposure EUT Description: REMOTE CONTROL Model No.: YL-37 FCC ID: 2AYHKYL-37 1. Limits According to KDB 447498 D01 General RF Exposure Guidance v06 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: Result=P/D*√F F= the RF channel transmit frequency in GHz P=Maximum turn‐up power in mw D=Min. test separation distance in mm 2. Test Result of RF Exposure Evaluation BT Frequency (MHz) Output power （dBm） Tune Up Power （dBm） Max Tune Up power dBm/mW Min test separati on distance mm Result Limit (mW/cm 2 ) S A R Te s t Exclusion 2473 -1.177 -1±1 0/1.00 5 0.315 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2011093755-E, antenna gain=0dBi Per KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine RF Exposure test exclusion. The test exclusion threshold is 0.315 which is<= 3, RF Exposure testing is not required. Note: Exclusion Thresholds Results=[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f (GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

Page 1 of 44 Report No.: HK2011093755-E TEST REPORT FCC PART 15 SUBPART C 15.247 Test report On Behalf of LAKHANI BUSINESS INC DBA BEST LINK For REMOTE CONTROL Model No.: YL-37, 757-C334, 757-C337 FCC ID: 2AYHKYL-37 Prepared for : LAKHANI BUSINESS INC DBA BEST LINK 7458 HARWIN DR. HOUSTON TEXAS 77036 USA 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: Dec. 03, 2020 ~ Dec. 10, 2020 Date of Report: Dec. 10, 2020 Report Number: HK2011093755-E Page 2 of 44 Report No.: HK2011093755-E TEST RESULT CERTIFICATION Applicant’s name .................... : LAKHANI BUSINESS INC DBA BEST LINK Address .................................... : 7458 HARWIN DR. HOUSTON TEXAS 77036 USA Manufacture's Name ............... : LAKHANI BUSINESS INC DBA BEST LINK Address .................................... : 7458 HARWIN DR. HOUSTON TEXAS 77036 USA Product description Trade Mark: N/A Product name ............................. : REMOTE CONTROL Model and/or type reference ... : YL-37, 757-C334, 757-C337 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 ................ : Dec. 03, 2020 ~ Dec. 10, 2020 Date of Issue ............................................. : Dec. 10, 2020 Test Result ................................................. : Pass Prepared by: Project Engineer Reviewed by: Project Supervisor Approved by: Technical Director Page 3 of 44 Report No.: HK2011093755-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 ........................................................................................................ 18 5.3.1 Applied procedures / Limit ............................................................................................................... 18 5.3.2 Test setup ........................................................................................................................................ 18 5.3.3 Test Result ....................................................................................................................................... 20 5.4 MAXIMUM OUTPUT POWER MEASUREMENT ................................................................................................. 27 5.4.1 Limit ................................................................................................................................................. 27 5.4.2 Test procedure ............................................................................................................................…

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Test Model:YL-37 Radiated Emission Conducted Emission