2AUARTKD200Automotive Bluetooth Diagnostic Device

D200

ThinkcarTechInc. * theapplicantmustdesignateacontactlocatedintheUnitedStatesforpurposesofactingasthe applicant’sagentforserviceofprocess,regardlessofwhethertheapplicantisadomesticorforeign entity.AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforserviceofprocess. U.S.AgentDesignationforServiceofProcess- CertificationAttestationLetter 4/16/2026 ATTN.:ReviewingEngineer FCCID:2AUARTKD200 Persection2.911(d)(7)oftheFCCrules,THINKCARTECHCO.,LTD.(“theapplicant”)certifies thattheequipmentforwhichauthorizationissoughtisdesignatedtothefollowingU.S.agent* forserviceofprocess: CompanyName:ThinkcarTechInc. CompanyAddress:720SRochesterAveUnitB,Ontario,CA91761,UnitedStates Agentcontactname/Title:WinterZhao AgentEmailAddress:[email protected] TelNo.:(183)369-22766 FRNNo.:0029099298 Theabovecontactpersonacceptstheobligationforserviceofprocess. Theapplicantacceptstomaintainanagentfornolessthanoneyearafterthegranteehas terminatedallmarketingandimportationortheconclusionofanyCommission-related proceedinginvolvingtheequipment. ApplicantSigned:AgentSigned(ifdifferenttoApplicant): Signed:Signed: Printedname:JinyuanTangPrintedname:WinterZhao Title:ManagerTitle:Manager CompanyName:THINKCARTECHCO.,LTD.CompanyName:ThinkcarTechInc. Date:4/16/2026Date:4/16/2026

THINKCAR TECH CO., LTD. 2026.04.11 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 (FCC ID:2AUARTKD200) Ref: Attestation Statements Part 2.911(d)(5)(i) Filing [THINKCAR TECH CO., LTD.] (“the applicant”) 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. Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing [THINKCAR TECH CO., LTD.] (“the applicant”) 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. Ref: Per KDB 986446 D01 v03 section B, 2a, [THINKCAR TECH CO., LTD.] certifies that the equipment for this application does not contain Kaspersky cybersecurity or anti-virus software. Sincerely, Jiankuai Li

2026.04.11 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize SHENZHEN STS TEST SERVICES CO.,LTD./ A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District,Bao’an District, Shenzhen, Guang Dong, China/Jiankuai Li(Name of Agent company name and address, Name of Agent) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. This appointment is valid until further December 31, 2026. Name: Jiankuai Li Title: PM E-mail:[email protected] Name: Jinyuan Tang Title: Manager E-mail: [email protected] Company: THINKCAR TECH CO., LTD. Signature:

THINKCAR TECH CO., LTD. 2026.04.11 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Automotive Bluetooth Diagnostic Device / D200/ FCC ID:2AUARTKD200) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the •Schematics •Block diagram •Operation description required to be submitted with this application be permanently withheld from public review. These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Please contact me if there is any information you may need. Sincerely, Jiankuai Li

THINKCAR TECH CO., LTD. 2026.04.11 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Short Term Confidentiality Request For (Automotive Bluetooth Diagnostic Device / D200 / FCC ID:2AUARTKD200) To Whom It May Concern: In accordance with sections 0.457 and 0.459 of CFR 47, < THINKCAR TECH CO., LTD. >. requests short-term Confidentiality of following sections of this application for a period of 180 days after grant is issued. Internal photos These documents contain detailed system and equipment descriptions and related information about the product, which < THINKCAR TECH CO., LTD.> considers to be proprietary, confidential, and a custom design and otherwise, would not release to the general public. Since this design is a basis from which future technological products will evolve, < THINKCAR TECH CO., LTD.> feels that this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give our competitors an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Jiankuai Li

Page 1 of 3 Report No.: STS2603242 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: D200 Photo 1 Photo 2 Page 2 of 3 Report No.: STS2603242 Photo 3 Photo 4 Page 3 of 3 Report No.: STS2603242 Photo 5 Photo 6

Label 2CM*3CM HVIN: D200 FCC ID: 2AUARTKD200 IC: 26415-TKD200

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. MPE Report Report No.:STS2603242H03 Issued for THINKCAR TECH CO., LTD. 2606, building 4, phase II, TiananYungu, Gangtou community, Bantian, Longgang District, Shenzhen, China Product Name: Automotive Bluetooth Diagnostic Device Brand Name: THINKCAR, MUCAR Model Name: D200 Series Model(s): N/A FCC ID: 2AUARTKD200 Test Standards: FCC 47CFR §2.1091 Page 2 of 9 Report No.: STS2603242H03 TEST REPORT Applicant’s Name ................. : THINKCAR TECH CO., LTD. Address ................................. : 2606, building 4, phase II, TiananYungu, Gangtou community, Bantian, Longgang District, Shenzhen, China Manufacturer's Name ........... : THINKCAR TECH CO., LTD. Address ................................. : 2606, building 4, phase II, TiananYungu, Gangtou community, Bantian, Longgang District, Shenzhen, China Product Description Product Name ........................ : Automotive Bluetooth Diagnostic Device Brand ................................... : THINKCAR, MUCAR Model Number ....................... : .. : D200 Series Model(s) ...................... : N/A Standards ............................. : FCC 47CFR §2.1091 447498 D04 Interim General RF Exposure Guidance v01 The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test ........................................... : Date of receipt of test item ...................... : 31 Mar. 2026 Date (s) of performance of tests ............. : 31 Mar. 2026 ~ 29 Apr. 2026 Date of Issue .......................................... : 29 Apr. 2026 Test Result .............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 9 Report No.: STS2603242H03 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 5 2. FCC 47CFR §2.1091 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 TEST RESULT 9 Page 4 of 9 Report No.: STS2603242H03 Revision History Rev. Issue Date Report No. Effect Page Contents 00 29 Apr. 2026 STS2603242H03 ALL Initial Issue Page 5 of 9 Report No.: STS2603242H03 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name Automotive Bluetooth Diagnostic Device Brand THINKCAR, MUCAR Model Name D200 Series Model(s) N/A Model Difference N/A Product Description The EUT is Automotive Bluetooth Diagnostic Device Operation Frequency: BT / BLE: 2402~2480 MHz Modulation Type: BT BR(1Mbps): GFSK BT EDR(2Mbps): π/4-DQPSK BT EDR(3Mbps): 8DPSK BLE: GFSK Antenna gain: 0dBi Antenna Designation: PCB Power Rating Input: DC 9-18V 100mA Adapter N/A Battery N/A Hardware Version V1.0 Software Version V1.0 1.2 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 Page 6 of 9 Report No.: STS2603242H03 2. FCC 47CFR §2.1091 REQUIREMENT 2.1 TEST STANDARDS Follow the maximum permissible exposure (MPE) limits specified in 447498 D04 Interim General Radio Frequency Exposure Guidelines v01. The gain of the antenna used in the product was extracted from the supplied antenna data sheet and the maximum total power input to the antenna was also measured. Calculate the distance from the product to the MPE limit by the formula. 2.2 LIMIT For single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph (b)(2) of this section): A single RF source is exempt if: (A) The available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption may not be used in conjunction with other exemption criteria other than those in paragraph (b)(3)(ii)(A) of Part 1.1307. Medical implant devices may only use this exemption and that in paragraph (b)(3)(ii)(A); (B) Or the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold Pth (mW) described in the following formula. This method shall only be used at separation distances (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by: Page 7 of 9 Report No.: STS2603242H03 (C) Or using below table and the minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. For the exemption in Table 1 to apply, R must be at least λ/2π, where λ is the free-space operating wavelength in meters. If the ERP of a single RF source is not easily obtained, then the available maximum time-averaged power may be used in lieu of ERP if the physical dimensions of the radiating structure(s) do not exceed the electrical length of λ/4 or if the antenna gain is less than that of a half-wave dipole (1.64 linear value). RF Source frequency (MHz) Threshold ERP(watts) 0.3-1.34 1,920 R 2 . 1.34-30 3,450 R 2 /f 2 . 30-300 3.83 R 2 . 300-1,500 0.0128 R 2 f. 1,500-100,000 19.2R 2 . Page 8 of 9 Report No.: STS2603242H03 For multiple RF sources: Multiple RF sources are exempt if: (A) The available maximum time-averaged power of each source is no more than 1 mW and there is a separation distance of two centimeters between any portion of a radiating structure operating and the nearest portion of any other radiating structure in the same device, except if the sum of multiple sources is less than 1 mW during the time-averaging period, in which case they may be treated as…

Text truncated - open the document above for the full version.

THINKCAR TECH CO., LTD. Prepared Checked Approved Eric Han Guojintao Zenghongqiao PCB Antenna Specification Revision History: 2025.9.1 Rev.A0 1. MODEL No.：D200 ANT 2. Applications This antenna is designed for Bluetooth. 3. Electrical Characteristics Frequency Band：2400MHz～2500MHz Polarization *Gain : Max peak gain: 0 dBi Impedance：50Ω Material: Copper foil THINKCAR TECH CO., LTD. Prepared Checked Approved Eric Han Guojintao Zenghongqiao 4. Chamber System Info. Chamber System: KSS Compact Chamber [Fig.1] Shield Box [Fig.2] DUT JIG(Quiet Zone 20Cm) [Fig.3] Horn Antenna THINKCAR TECH CO., LTD. Prepared Checked Approved Eric Han Guojintao Zenghongqiao 5. Typical Free Space Radiation Pattern 3D Radiation Pattern THINKCAR TECH CO., LTD. Prepared Checked Approved Eric Han Guojintao Zenghongqiao Radiation pattern@2402MHz Total Peak Gain:-0.09dBi Radiation pattern@2440MHz Total Peak Gain:0dBi THINKCAR TECH CO., LTD. Prepared Checked Approved Eric Han Guojintao Zenghongqiao Radiation pattern@2480MHz Total Peak Gain:-0.05dBi 6. Antenna Dimension

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Radio Test Report Report No.:STS2603242W06 Issued for THINKCAR TECH CO., LTD. 2606, building 4, phase II, TiananYungu, Gangtou community, Bantian, Longgang District, Shenzhen, China Product Name: Automotive Bluetooth Diagnostic Device Brand Name: THINKCAR, MUCAR Model Name: D200 Series Model(s): N/A FCC ID: 2AUARTKD200 Test Standards: FCC Part15.247 Page 2 of 81 Report No.: STS2603242W06 TEST REPORT Applicant’s Name ................. : THINKCAR TECH CO., LTD. Address ................................. : 2606, building 4, phase II, TiananYungu, Gangtou community, Bantian, Longgang District, Shenzhen, China Manufacturer's Name .......... : THINKCAR TECH CO., LTD. Address ................................. : 2606, building 4, phase II, TiananYungu, Gangtou community, Bantian, Longgang District, Shenzhen, China Product Description Product Name ....................... : Automotive Bluetooth Diagnostic Device Brand Name .......................... : THINKCAR, MUCAR Model Name .......................... : ... : D200 Series Model(s) .................... : N/A Test Standards ..................... : FCC Part15.247 Test Procedure ...................... : ANSI C63.10-2020 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the IC requirements. And it is applicable only to the tested sample identified in the report. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test ........................................... : Date of receipt of test item ..................... : 31 Mar. 2026 Date (s) of performance of tests ............. : 31 Mar. 2026 ~ 29 Apr. 2026 Date of Issue .......................................... : 29 Apr. 2026 Test Result.............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 81 Report No.: STS2603242W06 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 9 2.3 TEST SOFTWARE AND POWER LEVEL 10 2.4 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 10 2.5 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 11 2.6 EQUIPMENTS LIST 12 3. EMC EMISSION TEST 13 3.1 CONDUCTED EMISSION MEASUREMENT 13 3.2 TEST PROCEDURE 14 3.3 TEST SETUP 14 3.4 EUT OPERATING CONDITIONS 14 3.5 TEST RESULTS 14 4. RADIATED EMISSION MEASUREMENT 15 4.1 RADIATED EMISSION LIMITS 15 4.2 TEST PROCEDURE 17 4.3 TEST SETUP 18 4.4 EUT OPERATING CONDITIONS 19 4.5 FIELD STRENGTH CALCULATION 19 4.6 TEST RESULTS 20 5. DUTY CYCLE 47 5.1 TEST STANDARD 47 5.2 TEST PROCEDURE 47 5.3 DEVIATION FROM STANDARD 47 5.4 TEST SETUP 47 5.6 TEST RESULTS 47 6. CONDUCTED SPURIOUS & BAND EDGE EMISSION 48 6.1 LIMIT 48 6.2 TEST PROCEDURE 48 6.3 TEST SETUP 48 Page 4 of 81 Report No.: STS2603242W06 Table of Contents Page 6.4 EUT OPERATION CONDITIONS 48 6.5 TEST RESULTS 48 7. POWER SPECTRAL DENSITY TEST 49 7.1 LIMIT 49 7.2 TEST PROCEDURE 49 7.3 TEST SETUP 49 7.4 EUT OPERATION CONDITIONS 49 7.5 TEST RESULTS 49 8. BANDWIDTH TEST 50 8.1 LIMIT 50 8.2 TEST PROCEDURE 50 8.3 TEST SETUP 50 8.4 EUT OPERATION CONDITIONS 50 8.5 TEST RESULTS 50 9. PEAK OUTPUT POWER TEST 51 9.1 LIMIT 51 9.2 TEST PROCEDURE 51 9.3 TEST SETUP 51 9.4 EUT OPERATION CONDITIONS 51 9.5 TEST RESULTS 51 10. ANTENNA REQUIREMENT 52 10.1 STANDARD REQUIREMENT 52 10.2 EUT ANTENNA 52 APPENDIX 1-TEST DATA 53 DUTY CYCLE 53 MAXIMUM PEAK CONDUCTED OUTPUT POWER 57 -6DB BANDWIDTH 61 MAXIMUM POWER SPECTRAL DENSITY LEVEL 65 BAND EDGE 69 CONDUCTED RF SPURIOUS EMISSION 74 APPENDIX 2- EUT TEST PHOTO 81 Page 5 of 81 Report No.: STS2603242W06 Revision History Rev. Issue Date Report No. Effect Page Contents 00 29 Apr. 2026 STS2603242W06 ALL Initial Issue Page 6 of 81 Report No.: STS2603242W06 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission N/A -- 15.247 (a)(2) 6dB Bandwidth PASS -- 15.247 (b)(3) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247 (d) Conducted Spurious & Band Edge Emission PASS -- 15.247 (e) Power Spectral Density PASS -- 15.205 Restricted bands of operation PASS -- Part 15.247(d)/ Part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- Note: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2020. Page 7 of 81 Report No.: STS2603242W06 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 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 RF output power, conducted ±0.751dB 2 Unwanted Emissions, conducted ±2.888dB 3 All emissions, radiated 9K-30MHz ±2.48dB 4 All emissions, radiated 30M-1GHz ±2.52dB 5 All emissions, radiated 1G-18GHz ±3.48dB 6 All emissions, radiated>18GHz ±4.18dB 7 Conducted Emission (9KHz-150KHz) ±2.48dB 8 Conducted Emission (150KHz-30MHz) ±2.52dB 9 Occupied Channel Bandwidth ±3.6% 10 Power Spectral Density, conducted ±1.214dB 11 Duty Cycle ±3.2% Page 8 of 81 Report No.:…

Text truncated - open the document above for the full version.

Page 1 of 2 FCC ID: 2AUARTKD200 Setup photo RF Conduction RE (30 MHz-1GHz) Page 2 of 2 FCC ID: 2AUARTKD200 RE (1-18GHz) RE (Above 18GHz)