2ATH820230609remote control car

FCC Statement 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: 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 experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

YING JIANG Technology Toys Hengxin Building material Opposite 324 National,Road, Lianshang Town, Chenghai District, Shantou, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2023-6-25 To whom it may concern: We,YING JIANG Technology Toys, hereby certify that the equipment for which authorization is sought FCC ID: 2ATH820230609is not “covered” equipment prohibited from receiving an equipment authorization pursuant to § 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, we are not identified on the Covered List (https://www.fcc.gov/supplychain/coveredlist ) as an entity producing “covered” equipment. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(b) and (d)(5) and (6). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Sincerely, Signature YU BIN LIN General manager YING JIANG Technology Toys 62_[model] CoveredEqu_2.911(d)(5)(i) and (ii)-U, V03

YING JIANG Technology Toys Add:Hengxin Building material Opposite 324 National,Road, Lianshang Town, Chenghai District, Shantou, China Date: 2023-6-25 FCC ID:2ATH820230609 Dear Sir/Madam, We,YING JIANG Technology ToysHereby declares the following statement for Federal Communications Commission, PCB board, circuit,structure and internal of these model(s) are the same, Only model number is different for these model: Product name: remote control car Model no.: MT4336/MT4339 , PT1939, YJ-003, YJ-005, YJ-006, YJ-007, YJ-009, YJ-010, YJ-011, YJ-012, YJ-013, YJ-014, YJ-015, YJ-016, YJ-017, YJ-018, YJ-019, YJ-020, YJ-021, YJ-022, YJ-023, YJ-024, YJ-004, YJ-004-1, YJ-004-2, YJ-038, YJ-039, YJ-040, YJ-041, YJ-042, YJ-043, YJ-044, YJ- 045, YJ-046, YJ-047, YJ-048, YJ-051, YJ-051-1, YJ-052-1, YJ-050, YJ-049, YJ-052, YJ-053-4, YJ- 053-3, YJ-053-2, YJ-053-1, YJ-053-5, YJ-057-1, YJ-058-1, YJ-058-2, YJ-059-1, YJ-059-2, YJ-060, YJ-061-1, YJ-061-2, YJ-062-1, YJ-062-2, YJ-062-3, YJ-062-4, YJ-062-5, YJ-062-6, YJ-062-7, YJ- 062-8, YJ-062-9, YJ-062-10, YJ-062-11, YJ-062-12, YJ-062-13, YJ-062-14, YJ-062-15, YJ-062-16, YJ-062-17, YJ-062-18, YJ-062-19, YJ-062-20, YJ-072-1, YJ-072-2, YJ-073-1, YJ-073-2, YJ-074, YJ-075-1, YJ-075-2, YJ-075-3, YJ-075-4, YJ-076-1, YJ-076-2, YJ-076-3, YJ-076-4, YJ-077, YJ-078- 1, YJ-079-1, YJ-078-4, YJ-078-3, YJ-078-2, YJ-079-2, YJ-079-3, YJ-079-4, YJ-080-1, YJ-080-2, YJ- 080-3, YJ-080-4, YJ-081-1, YJ-081-2, YJ-081-3, YJ-081-4, YJ-082-1, YJ-082-2, YJ-082-3, YJ-082-4, YJ-083-1, YJ-083-2, YJ-083-3, YJ-083-4, YJ-084, YJ-084-1, YJ-084-2, YJ-084-3, YJ-084-4 Sincerely, Name/Title： YU BIN LIN/General manager Company: YING JIANG Technology Toys Address: Hengxin Building material Opposite 324 National,Road, Lianshang Town, Chenghai District, Shantou, China Phone: 13715911170 YING JIANG Technology Toys Add:Hengxin Building material Opposite 324 National,Road, Lianshang Town, Chenghai District, Shantou, China Fax: 0754-87210646 E-Mail: [email protected]

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2023-6-25> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2ATH820230609MT4336/MT4339 For the product stated above, we request that the following information beheld confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： YU BIN LIN/General manager Company: YING JIANG Technology Toys Address: Hengxin Building material Opposite 324 National,Road, Lianshang Town, Chenghai District, Shantou, China Phone: 13715911170 Fax: 0754-87210646 E-Mail: [email protected]

YING JIANG Technology Toys Hengxin Building material Opposite 324 National,Road, Lianshang Town, Chenghai District, Shantou, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2023-6-25 To whom it may concern: We,YING JIANG Technology Toysthe undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2ATH820230609including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. By signing this application form, we agree to Eurofins’ current valid General Terms and Conditions (AGB),Testing and Certification Regulations (PZO) which can be viewed onfollowing website www.eurofins.de/ee or retrieved on request. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title ： YU BIN LIN/General manager Company: YING JIANG Technology Toys Address: Hengxin Building material Opposite 324 National,Road, Lianshang Town, Chenghai District, Shantou, China Phone: 13715911170 Fax: 0754-87210646 E-Mail: [email protected]

FCC ID: 2ATH820230609 TB-RF-074-1.0 Appendix III EUT External Photographs Photo 1 Appearance of EUT Photo 2 Appearance of EUT EUT FCC ID: 2ATH820230609 TB-RF-074-1.0 Photo 3 Appearance of EUT Photo 4 Appearance of EUT FCC ID: 2ATH820230609 TB-RF-074-1.0 Photo 5 Appearance of EUT Photo 6 Appearance of EUT FCC ID: 2ATH820230609 TB-RF-074-1.0 Photo 7 Appearance of EUT

FCC ID:2ATH820230609 TB-RF-074-1.0 Appendix IID Label remote control car FCC ID:2ATH820230609 Model:MT4336/MT4339 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. 2. This device must accept any interference received, including interference that may cause undesired operation. FCC ID: 2ATH820230609 TB-RF-074-1.0 Appendix II ID Label Location Size for the label: 20mm X 10mm

FCC ID: 2ATH820230609 TB-RF-074-1.0 Appendix IV EUT Internal Photographs Photo 8 Internal of EUT Photo 9 Internal of EUT Spring Antenna FCC ID: 2ATH820230609 TB-RF-074-1.0 Photo 10 Internal of EUT Photo 11 Appearance of PCB FCC ID: 2ATH820230609 TB-RF-074-1.0 Photo 12 Appearance of PCB

Shenzhen Toby Technology Co., Ltd. Report No.: TBR-C-202306-0099-3 Page: 1 of 4 TB-RF-075-1.0 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 Maximum Permissible Exposure Evaluation FCC ID:2ATH820230609 1. Client Information Applicant : YING JIANG Technology Toys Address : Hengxin Building material Opposite 324 National Road, Lianshang Town, Chenghai District, Shantou City, China Manufacturer : YING JIANG Technology Toys Address : Hengxin Building material Opposite 324 National Road, Lianshang Town, Chenghai District, Shantou City, China 2. General Description of EUT EUT Name : remote control car Model(s) No. : Please Refer To Page 2 Product Description : Operation Frequency: 27.145MHz Antenna Gain: 0dBi Spring Antenna Power Supply : DC 1.5V by AA battery*2 Software Version : V.0 Hardware Version : V.0 Remark: The antenna gain provided by the applicant, the adapter and verified for the RF conduction test and adapter provided by TOBY test lab. Note: More test information about the EUT please refer the RF Test Report. Report No.: TBR-C-202306-0099-3 Page: 2 of 4 TB-RF-075-1.0 Model list MT4336/MT4339,PT1939, YJ-003, YJ-005, YJ-006, YJ-007, YJ-009, YJ-010, YJ-011, YJ-012, YJ-013, YJ-014, YJ-015, YJ-016, YJ-017, YJ-018, YJ-019, YJ-020, YJ-021, YJ-022, YJ-023, YJ-024, YJ-004, YJ-004-1, YJ-004-2, YJ-038, YJ-039, YJ-040, YJ-041, YJ-042, YJ-043, YJ-044, YJ-045, YJ-046, YJ-047, YJ-048, YJ-051, YJ-051-1, YJ-052-1, YJ-050, YJ-049, YJ-052, YJ-053-4, YJ-053-3, YJ-053-2, YJ-053-1, YJ-053-5, YJ-057-1, YJ-058-1, YJ-058-2, YJ-059-1, YJ-059-2, YJ-060, YJ-061-1, YJ-061-2, YJ-062-1, YJ-062-2, YJ-062-3, YJ-062-4, YJ-062-5, YJ-062-6, YJ-062-7, YJ-062-8, YJ-062-9, YJ-062-10, YJ-062-11, YJ-062-12, YJ-062-13, YJ-062-14, YJ-062-15, YJ-062-16, YJ-062-17, YJ-062-18, YJ-062-19, YJ-062-20, YJ-072-1, YJ-072-2, YJ-073-1, YJ-073-2, YJ-074, YJ-075-1, YJ-075-2, YJ-075-3, YJ-075-4, YJ-076-1, YJ-076-2, YJ-076-3, YJ-076-4, YJ-077, YJ-078-1, YJ-079-1, YJ-078-4, YJ-078-3, YJ-078-2, YJ-079-2, YJ-079-3, YJ-079-4, YJ-080-1, YJ-080-2, YJ-080-3, YJ-080-4, YJ-081-1, YJ-081-2, YJ-081-3, YJ-081-4, YJ-082-1, YJ-082-2, YJ-082-3, YJ-082-4, YJ-083-1, YJ-083-2, YJ-083-3, YJ-083-4, YJ-084, YJ-084-1, YJ-084-2, YJ-084-3, YJ-084-4 Model Difference: All PCB boards and circuit diagrams are the same, the only difference is that model names. Report No.: TBR-C-202306-0099-3 Page: 3 of 4 TB-RF-075-1.0 The RF Exposure Evaluation for FCC: SAR Test Exclusion Calculations FCC: According to 447498 D04 Interim General RF Exposure Guidance v01. The SAR-based exemption formula of § 1.1307(b)(3)(i)(B), repeated here as Formula (B.2), applies for single fixed, mobile, and portable RF sources with available maximum time-averaged power or effective radiated power (ERP), whichever is greater, of less than or equal to the threshold P th (mW). This method shall only be used at separation distances from 0.5 cm to 40 cm and at frequencies from 0.3 GHz to 6 GHz (inclusive). P th is given by Formula (B.2). and f is in GHz, d is the separation distance (cm), and ERP 20cm is per Formula (B.1). The example values shown in Table B.2 are for illustration only. Table B.2—Example Power Thresholds (mW) Report No.: TBR-C-202306-0099-3 Page: 4 of 4 TB-RF-075-1.0 Calculations 1. Antenna Gain: Spring Antenna: 0dBi. 2. EUT Operation Condition: Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. 3. Exposure Evaluation: Equation from page 18 of OET Bulletin 65, Edition 97-01 S=(PG)/4πR 2 Where S: power density P: power input to the antenna G: power gain of the antenna in the direction of interest relative to an isotropic radiator. R: distance to the center of radiation of the antenna 4. Test Result: EIRP=E-104.8+20logD=64.97-104.8+20log3 = -30.29dBm Frequency (MHz) Measured Power (dBm) Tune up Tolerance ± (dB) Output power (Max. Turn-up Procedure) (mW) Limit (mW) 27.145 -30.29 -30±1 0.001 39 Note: At separation distance of ≤5 mm 5. Conclusion: The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF Exposure of mobile device. -----END OF REPORT-----

产品规格书 PRODUCT SPECIFICATION No：ZH20230603001 Version: 01 Page: 1/1 制造商：汕头市卓煌五金有限公司 Manufacturer Shantou Zhuohuang Hardware Co., Ltd 地址：汕头市澄海区广益街道北陇工业区 Address Beilong Industrial Zone, Guangyi Street, Chenghai District, Shantou City，Guangdong，China 材料 Materials 详见绕线规格表 Refer to specification for detalls 使用机台 Machine 西田弹簧机 Nishida spring machine 品号 ITEM X0.7*W4.5*C2050 品名 Description 环保发射软管天线 Hose Antena 天线规格书 Antenna Specification information: 一、外形尺寸（mm）/SIZE Example 1Example 2 Example 3Example 4 Rcmark： 1：天线总长度为2050MM 1：The total length of the antenna is 2050MM 2：涂刷环保胶水2：Brush glue 3：粘环保胶水3：stick with the glue 一、天线增益（dBi）/Gain 频率范围Frequency Range（MHz） 天线增益Gain(Dbi) max 20MHz-40MHz0 天线测试图谱Antenna Test Result HorzontalVertical 版本/Version修改内容/Details修改日/Date备注/Remarks 01Firstissue20230603 确认栏/Approval 此规格图请客户确认签回，将作为客户图面保管 Please confirm the customer sign back,will bekept 制作确认 客户 确认

Shenzhen Toby Technology Co., Ltd. Report No.: TBR-C-202306-0099-2 Page: 1 of 28 TB-RF-074-1.0 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 FCC Radio Test Report FCC ID:2ATH820230609 Original Grant Report No. : TBR-C-202306-0099-2 Applicant : YING JIANG Technology Toys Equipment Under Test (EUT) EUT Name : remote control car Model No. : MT4336/MT4339 Series Model No. : Please Refer To Page 6 Brand Name : ----- Sample ID : 202306-0099-2-#1 & 202306-0099-2-#2 Receipt Date : 2023-06-14 Test Date : 2023-06-14 to 2023-06-25 Issue Date : 2023-06-25 Standards : FCC Part 15, Subpart C(15.227) Test Method : ANSI C63.10: 2013 Conclusions : PASS In the configuration tested, the EUT complied with the standards specified above. Test/Witness Engineer : Camille Li Engineer Supervisor : Ivan Su Engineer Manager : Ray Lai This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in the report. Report No.: TBR-C-202306-0099-2 Page: 2 of 28 TB-RF-075-1.0 Contents CONTENTS ............................................................................................................................................. 2 1. GENERAL INFORMATION ABOUT EUT.............................................................................. 5 1.1 Client Information ................................................................................................................. 5 1.2 General Description of EUT (Equipment Under Test) ................................................... 5 1.3 Block Diagram Showing the Configuration of System Tested ...................................... 7 1.4 Description of Support Units .............................................................................................. 7 1.5 Description of Test Mode .................................................................................................... 8 1.6 Description of Test Software Setting ................................................................................ 9 1.7 Measurement Uncertainty .................................................................................................. 9 1.8 Test Facility ......................................................................................................................... 10 2. TEST SUMMARY ..................................................................................................................... 11 3. TEST SOFTWARE ................................................................................................................... 11 4. TEST EQUIPMENT .................................................................................................................. 12 5. CONDUCTED EMISSION TEST ........................................................................................... 14 5.1 Test Standard and Limit .................................................................................................... 14 5.2 Test Setup ........................................................................................................................... 14 5.3 Test Procedure ................................................................................................................... 15 5.4 Deviation From Test Standard ......................................................................................... 15 5.5 EUT Operating Mode ........................................................................................................ 15 5.6 Test Data ............................................................................................................................. 15 6. RADIATED EMISSION TEST ................................................................................................ 16 6.1 Test Standard and Limit .................................................................................................... 16 6.2 Test Setup ........................................................................................................................... 18 6.3 Test Procedure ................................................................................................................... 19 6.4 Deviation From Test Standard ......................................................................................... 19 6.5 EUT Operating Condition ................................................................................................. 19 6.6 Test Data ............................................................................................................................. 19 7. BANDWIDTH MEASUREMENT ............................................................................................ 20 7.1 Test Standard and Limit .................................................................................................... 20 7.2 Test Setup ........................................................................................................................... 20 7.3 Test Procedure ................................................................................................................... 20 7.4 Deviation From Test Standard ......................................................................................... 20 7.5 EUT Operating Condition ................................................................................................. 20 Report No.: TBR-C-202306-0099-2 Page: 3 of 28 TB-RF-075-1.0 7.6 Test Data ............................................................................................................................. 20 8. ANTENNA REQUIREMENT ................................................................................................... 21 8.1 Standard Requirement ..........…

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FCC ID: 2ATH820230609 TB-RF-074-1.0 Appendix V EUT Test Photographs Photo of Setup for Radiated Emission (9KHz-30MHz) Photo of Setup for Radiated Emission (Below 1 GHz) -----END OF REPORT-----