2AYHK-3688K25AREMOTE CONTROL

Single point press Remote control car default function Forward - Backward - Turn Left - Turn Right Multiple presses Drift Forward Left - Drift Forward Right - Drift Backward Right Frequency band 27.100MHz~27.200MHz Operation frequency 27.145MHz OSC 27.145MHz Channels 1MHz Modulation ASK Antenna 3dBi 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 interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient 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 the receiver is ‐‐ connected. Consult the dealer or an experienc‐‐ed radio/TV technician for help. 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. 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 United States Product Name: REMOTE CONTROL Model Number(s): 3688-K25A, 757-4WD17, 757-5004, 757-C334, 757-C337, 3688-C5A, 3688-G92A, 3688-G93A, 3688-G94A, 3688-S36A, 3688-K1A, 3688-K12A, 3688-K13A, 3688-R1, FC118 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: Jan. 15, 2021 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: Jan. 15, 2021 Subject; Request for Confidentiality FCC ID: 2AYHK-3688K25A 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 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: 3688-K25A, 757-4WD17, 757-5004, 757-C334, 757-C337, 3688-C5A, 3688-G92A, 3688-G93A, 3688-G94A, 3688-S36A, 3688-K1A, 3688-K12A, 3688-K13A, 3688-R1, FC118;All model’s the function, software and electric circuit are the same, only with a product model named different for commercial purpose. Test sample model: 3688-K25A. Please contact me if you have any question. Name: Imran Lakhani Date: Jan. 15, 2021 Title: Officer Signature of applicant:

Annex A External Photos Report No.: HK2011093326‐E Page 1 of 3 Report No.: HK2011093326‐E Page 2 of 3 Report No.: HK2011093326‐E Page 3 of 3

FCC ID LABEL: FCC ID: 2AYHK-3688K25A Label Location

Annex B Internal Photo Report No.:HK2011093326-E Page 1 of 3 Antenna Report No.:HK2011093326-E Page 2 of 3 Antenna Report No.:HK2011093326-E Page 3 of 3

Report No.: HK2011093326-E Page 1 of 20 FCC TEST REPORT Test report On Behalf of LAKHANI BUSINESS INC DBA BEST LINK For REMOTE CONTROL Model No.: 3688-K25A, 757-4WD17, 757-5004, 757-C334, 757-C337, 3688-C5A, 3688-G92A, 3688-G93A, 3688-G94A, 3688-S36A, 3688-K1A, 3688-K12A, 3688-K13A, 3688-R1, FC118 FCC ID: 2AYHK-3688K25A Prepared for : LAKHANI BUSINESS INC DBA BEST LINK 7458 HARWIN DR. HOUSTON, Texas 77036 United States 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: Nov. 09, 2020 ~ Jan. 15, 2021 Date of Report: Jan. 15, 2021 Report Number: HK2011093326-E Report No.: HK2011093326-E Page 2 of 20 TEST RESULT CERTIFICATION Applicant’s name .................. : LAKHANI BUSINESS INC DBA BEST LINK Address .................................. : 7458 HARWIN DR. HOUSTON, Texas 77036 United States Manufacture's Name ............. : LAKHANI BUSINESS INC DBA BEST LINK Address .................................. : 7458 HARWIN DR. HOUSTON, Texas 77036 United States Product description Trade Mark: N/A Product name ............................ : REMOTE CONTROL Model and/or type reference . : 3688-K25A, 757-4WD17, 757-5004, 757-C334, 757-C337, 3688-C5A, 3688-G92A, 3688-G93A, 3688-G94A, 3688-S36A, 3688-K1A, 3688-K12A, 3688-K13A, 3688-R1, FC118 Standards .............................. : 47 CFR Part15, Subpart C 15.227 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 ............. : Nov. 09, 2020 ~ Jan. 15, 2021 Date of Issue ........................................... : Jan. 15, 2021 Test Result ............................................... : Pass Testing Engineer : (Gary Qian) Technical Manager : (Eden Hu) Authorized Signatory : (Jason Zhou) Report No.: HK2011093326-E Page 3 of 20 TABLE OF CONTENTS 1. Test Result Summary ............................................................................... 5 1.1. TEST FACILITY .................................................................................................................................. 5 1.2. MEASUREMENT UNCERTAINTY ..................................................................................................... 5 2. EUT Description ........................................................................................ 6 3. Genera Information ................................................................................... 7 3.1. TEST ENVIRONMENT AND MODE ............................................................................................................. 7 3.2. DESCRIPTION OF SUPPORT UNITS .......................................................................................................... 7 4. Test Results and Measurement Data ...................................................... 8 4.1. ANTENNA REQUIREMENT ....................................................................................................................... 8 4.2. CONDUCTED EMISSION .......................................................................................................................... 9 4.3. RADIATED EMISSION MEASUREMENT.................................................................................................... 11 4.4. OCCUPIED BANDWIDTH ........................................................................................................................ 17 Appendix A: Photographs of Test Setup .................................................... 19 Appendix B: PHOTOS OF THE EUT ............................................................ 20 Report No.: HK2011093326-E Page 4 of 20 ** Modifited History ** Revison Description Issued Data Remark Revsion 1.0 Initial Test Report Release Jan. 15, 2021 Jason Zhou Report No.: HK2011093326-E Page 5 of 20 1. Test Result Summary Requirement CFR 47 Section Result Conduction Emission, 0.15MHz to 30MHz §15.207 N/A Radiation Emission §15.227, §15.205, §15.209 PASS Occupied Bandwidth §15.215 PASS Antenna requirement §15.203 PASS Note: 1. PASS: Test item meets the requirement. 2. Fail: Test item does not meet the requirement. 3. N/A: Test case does not apply to the test object. 4. The test result judgment is decided by the limit of test standard. 1.1. TEST FACILITY Te s t F i r m : Shenzhen HUAK Testing Technology Co., Ltd. Address : 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China FCC designation number : CN1229 test firm registration number : 616276 1.2. MEASUREMENT UNCERTAINTY Measurement Uncertainty Conducted Emission Expanded Uncertainty =2.71dB, k=2 Radiated emission expanded uncertainty(9kHz-30MHz) = 4.26dB, k=2 Radiated emission expanded uncertainty(30MHz-1000MHz)= 3.90dB, k=2 Radiated emission expanded uncertainty(Above 1GHz) = 4.28dB, k=2 Report No.: HK2011093326-E Page 6 of 20 2. EUT Description Equipment REMOTE CONTROL Model Name 3688-K25A Serial No 757-4WD17,757-5004,757-C334,757-C337,3688-C5A, 3688-G92A,3688-G93A,3688-G94A,3688-S36A,3688-K1A, 3688-K12A,3688-K13A,3688-R1,FC118 Model Difference All model’s the function, software and electric circuit are the same, only with a product model named different for commercial purpose. Test sample model: 3688-K25A. FCC ID 2AYHK-3688K25A Antenna Type External Antenna Antenna Gain 3dBi Operation frequency 27.145MHz Modulation Type ASK Power Source DC 3V from Battery Power Rating DC 3V from Battery Report No.: HK2011093326-E Page 7 of 20 3. Genera Information 3.1. Test Environment and Mode Op…

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Radiated Emissions