2A24F-XDKJHigh Speed Remote-controlled Car

FCC ID: 2A24F-XDKJ Shantou Xiangda Technology Limited Company Model Confirmation Letter We, (Shantou Xiangda Technology Limited Company) certify the product: High Speed Remote-controlled Car, models: XDKJ-001, XDKJ-002, XDKJ-003, XDKJ-004, XDKJ-005, XDKJ-006, XDKJ-007, XDKJ-008, XDKJ-009, XDKJ-010, XDKJ-011, XDKJ-012, XDKJ-013, XDKJ-014, XDKJ-015, XDKJ-016, XDKJ-017, XDKJ-018, XDKJ-019, XDKJ-020, XDKJ-021, XDKJ-022, XDKJ-023, XDKJ-024, XDKJ-025, XDKJ-026, XDKJ-027, XDKJ-028, XDKJ-029, XDKJ-030, XDKJ-031, XDKJ-032, XDKJ-033, XDKJ-034, XDKJ-035, XDKJ-036, XDKJ-037, XDKJ-038, XDKJ-039, XDKJ-040, XDKJ-041, XDKJ-042, XDKJ-043, XDKJ-044, XDKJ-045, XDKJ-046, XDKJ-047, XDKJ-048, XDKJ-049, XDKJ-050 Their electrical circuit design, layout, components used and internal wiring are identical, Only the name and outside-color is different. Signiture: Grantee Contact: wenbo chen Company Name: Shantou Xiangda Technology Limited Company Date: 2021-9-24

Shantou Xiangda Technology Limited Company Agent Authorization Company: Shantou Xiangda Technology Limited Company Address: Daping Industrial Estate, Jianyang Village, Lianxia Town, Chenghai District, Shantou City, Guangdong Province, China Product Name: High Speed Remote-controlled Car Model Number(s): XDKJ-001, XDKJ-002, XDKJ-003, XDKJ-004, XDKJ-005, XDKJ-006, XDKJ-007, XDKJ-008, XDKJ-009, XDKJ-010, XDKJ-011, XDKJ-012, XDKJ-013, XDKJ-014, XDKJ-015, XDKJ-016, XDKJ-017, XDKJ-018, XDKJ-019, XDKJ-020, XDKJ-021, XDKJ-022, XDKJ-023, XDKJ-024, XDKJ-025, XDKJ-026, XDKJ-027, XDKJ-028, XDKJ-029, XDKJ-030, XDKJ-031, XDKJ-032, XDKJ-033, XDKJ-034, XDKJ-035, XDKJ-036, XDKJ-037, XDKJ-038, XDKJ-039, XDKJ-040, XDKJ-041, XDKJ-042, XDKJ-043, XDKJ-044, XDKJ-045, XDKJ-046, XDKJ-047, XDKJ-048, XDKJ-049, XDKJ-050 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. Date: Sep. 24, 2021 Signature: Name:wen bo chen Title: manager Company: Shantou Xiangda Technology Limited Company

Shantou Xiangda Technology Limited Company Date: Sep. 24, 2021 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2A24F-XDKJ 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 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 pursuant to 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. Sincerely, Signature: Name: wen bo chen Title: manager

Label place Label size: 25*50 Label sample High Speed Remote-controlled Car Model: XDKJ-001 FCC ID: 2A24F-XDKJ 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.

ANT

Project No.: ZKT-2109154905 Page 1 of 29 FCC TEST REPORT FCC ID: 2A24F-XDKJ Report Number. ................................ : ZKT-2109154905 Date of Test ................................................. : Sep. 02, 2021 -- Sep. 16, 2021 Date of issue .................................... : Sep. 16, 2021 Total number of pages ...................... 29 Test Result ..................................... : PASS Testing Laboratory. ........................... : Shenzhen ZKT Technology Co., Ltd. Address .......................................... : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Applicant's name ............................ : Shantou Xiangda Technology Limited Company Address .......................................... : Daping Industrial Estate, Jianyang Village, Lianxia Town, Chenghai District, Shantou City, Guangdong Province, China Manufacturer's name ..................... : Shantou Xiangda Technology Limited Company Address .......................................... : Daping Industrial Estate, Jianyang Village, Lianxia Town, Chenghai District, Shantou City, Guangdong Province, China Test specification: Standard ........................................... : FCC CFR Title 47 Part 15 Subpart C Section 15.249 ANSI C63.10:2013 Test procedure ................................. : / Non-standard test method ............. : N/A Test Report Form No. .................... : TRF-EL-111_V0 Test Report Form(s) Originator .... : ZKT Testing Master TRF .................................... : Dated: 2020-01-06 This device described above has been tested by ZKT, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of ZKT, this document may be altered or revised by ZKT, personal only, and shall be noted in the revision of the document. Product name ................................... : High Speed Remote-controlled Car Trademark ...................................... : / Project No.: ZKT-2109154905 Page 2 of 29 Model/Type reference ...................... : XDKJ-001, XDKJ-002, XDKJ-003, XDKJ-004, XDKJ-005, XDKJ-006, XDKJ-007, XDKJ-008, XDKJ-009, XDKJ-010, XDKJ-011, XDKJ-012, XDKJ-013, XDKJ-014, XDKJ-015, XDKJ-016, XDKJ-017, XDKJ-018, XDKJ-019, XDKJ-020, XDKJ-021, XDKJ-022, XDKJ-023, XDKJ-024, XDKJ-025, XDKJ-026, XDKJ-027, XDKJ-028, XDKJ-029, XDKJ-030, XDKJ-031, XDKJ-032, XDKJ-033, XDKJ-034, XDKJ-035, XDKJ-036, XDKJ-037, XDKJ-038, XDKJ-039, XDKJ-040, XDKJ-041, XDKJ-042, XDKJ-043, XDKJ-044, XDKJ-045, XDKJ-046, XDKJ-047, XDKJ-048, XDKJ-049, XDKJ-050 Ratings ............................................. : DC 4.5V Testing procedure and testing location: Testing Laboratory ................................... : Shenzhen ZKT Technology Co., Ltd. Address ...................................................... : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Tested by (name + signature) .................... : Reviewer (name + signature) ..................... : Approved (name + signature) .................... : Alen He Joe Liu Lake Xie Project No.: ZKT-2109154905 Page 3 of 29 Table of Contents Page 1.VERSION5 2.1SUMMARY OF TEST RESULTS 6 2.1 TEST FACILITY 7 2.2 MEASUREMENT UNCERTAINTY 7 3.GENERAL INFORMATION8 3.1 GENERAL DESCRIPTION OF EUT8 3.2 DESCRIPTION OF TEST MODES9 3.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED9 3.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE)9 3.5 EQUIPMENTS LIST FOR ALL TEST ITEMS10 4.EMC EMISSION TEST11 4.1 CONDUCTED EMISSION MEASUREMENT11 4.1.1 POWER LINE CONDUCTED EMISSION LIMITS 11 4.1.2 TEST PROCEDURE 11 4.1.3 DEVIATION FROM TEST STANDARD 11 4.1.4 TEST SETUP 12 4.1.5 EUT OPERATING CONDITIONS 12 4.1.6 TEST RESULTS 12 4.2 RADIATED EMISSION MEASUREMENT 13 4.2.1 RADIATED EMISSION LIMITS 13 4.2.2 TEST PROCEDURE 14 4.2.3 DEVIATION FROM TEST STANDARD 14 4.2.4 TEST SETUP 14 4.2.5 EUT OPERATING CONDITIONS 15 5.BANDWIDTH OF FREQUENCY BAND EDGE21 5.1 TEST REQUIREMENT: 21 5.2 TEST PROCEDURE 21 5.3 DEVIATION FROM TEST STANDARD 22 5.4 TEST SETUP 22 5.5 EUT OPERATING CONDITIONS 22 5.6 TEST RESULT 23 6.CHANNEL BANDWIDTH24 6.1 APPLIED PROCEDURES / LIMIT 24 6.2 TEST PROCEDURE 24 6.3 DEVIATION FROM STANDARD 24 6.4 TEST SETUP 24 Project No.: ZKT-2109154905 Page 4 of 29 Table of Contents Page 6.5 EUT OPERATION CONDITIONS 24 6.6 TEST RESULTS 25 7.ANTENNA REQUIREMENT 27 8. TEST SETUP PHOTO 28 9. EUT CONSTRUCTIONAL DETAILS 29 Project No.: ZKT-2109154905 Page 5 of 29 1.VERSION Report No. Version Description Approved ZKT-2109154905 Rev.01 Initial issue of report Sep. 16, 2021 Project No.: ZKT-2109154905 Page 6 of 29 2.1SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.249) , Subpart C Standard Section Test Item Judgment Remark FCC part 15.203 Antenna requirement PASS FCC part 15.207 AC Power Line Conducted Emi sion N/A FCC part 15.249 Fundamental &Radiated Spurious Emission Measurement PASS FCC part 15.215(c) 20dB Channel Bandwidth PASS FCC part 15.205 Band Edge PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report Project No.: ZKT-2109154905 Page 7 of 29 2.1 TEST FACILITY Shenzhen ZKT Technology Co., Ltd. Add. : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China FCC Test Firm Registration Number: 692225 Designation Number: CN1299 IC Registered No.: 27033 2.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U，where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2，providing a level of confidence of approximately 95 %。 No. Item Uncertainty 1 Conducted Emission Test ±1.38dB 2 RF power conducted ±0.16dB 3 Spurious emissions conducted ±0.21dB 4 All emissions radiated(<1…

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