2ANCG-WTM1C10WTM1C10

ISSUE DATE: 2023-5-31 Revision No.: 0.1 Specification No: WTM1C10 Page: 1 of 10 MODEL NO：WTM1C10 Transmitter of WPC QI BPP Product name : WTM1C10 ENGINEERING SPECIFICATION SHEET 合興 Purpose: This specification document represents the design criteria of the product identified herein, for the approval of the designated recipient (customer). Prior to production and delivery of this product by CWT, the customer shall endorse its approval of this specification document, upon review of the detailed information provided herein. The customer’s endorsement (approval) verifies that the product description is determined to be fully compliant to the customer’s design requirements. If one or more samples are included with this specification, the customer’s endorsement (approval) further verifies that the product has been tested by the customer, for which the product satisfactorily meets all aesthetic, mechanical, electrical, and operating requirements for its intended usage with the customer’s suitable indoor equipment or applications. To Approve: An authorized employee or agent of the customer shall endorse approval of this specification. Please sign & date this cover-page, and initial each subsequent page in the lower left corner to signify all sections have been read and found to be acceptable. A completed, original copy (signed, dated, initialed) of this specification must be returned to CWT to record the approved customer design. The customer shall keep one or more copies for its records. Upon receipt, CWT shall manufacture the product to the approved customer design. If design revisions are otherwise required, a revised specification and/or modified samples shall be provided by CWT for the endorsement (approval) by the customer. Approved Issued Checked Planned Leo Chen Dylan Ou Customer Signed Channel Well Technology Co., Ltd. ISSUE DATE: 2023-5-31 Revision No.: 0.1 Specification No: WTM1C10 Page: 2 of 10 MODEL NO：WTM1C10 Transmitter of WPC QI BPP Product name : WTM1C10 ENGINEERING SPECIFICATION SHEET SPEC. Revision History Date Revision No. Change Information Previous version Current version 20230531 0.1 Advance ISSUE DATE: 2023-5-31 Revision No.: 0.1 Specification No: WTM1C10 Page: 3 of 10 MODEL NO：WTM1C10 Transmitter of WPC QI BPP Product name : WTM1C10 ENGINEERING SPECIFICATION SHEET TABLE OF CONTENTS 1 SCOPE ............................................................................................................................................... 4 1.1 GENERAL DESCRIPTION ................................................................................................................ 4 2 ELECTRICAL SPECIFICATION .................................................................................................. 5 2.1 DESIGN STANDARDS ..................................................................................................................... 5 2.2 INPUT REQUIREMENT ................................................................................................................... 5 2.3 OUTPUT REQUIREMENT ................................................................................................................ 5 2.4 NO LOAD CONSUMPTION .............................................................................................................. 5 2.5 EFFICIENCY .................................................................................................................................. 5 2.6 FREQUENCY ................................................................................................................................. 6 2.7 INTERFACE SURFACE .................................................................................................................... 6 2.7.1 Distance .............................................................................................................................. 6 2.7.2 Without metal ...................................................................................................................... 6 2.8 LED INDICATE .............................................................................................................................. 6 3 ENVIRONMENTAL SPECIFICATION ........................................................................................ 7 3.1 COOLING ...................................................................................................................................... 7 3.2 TEMPERATURE ............................................................................................................................. 7 3.3 HUMIDITY .................................................................................................................................... 7 3.4 CALCULATED MEAN TIME BETWEEN FAILURES (MTBF) ................................................................. 7 3.5 WEIGHT ....................................................................................................................................... 7 4 REGULATORY COMPLIANCE .................................................................................................... 7 4.1 EMC SPECIFICATION .................................................................................................................... 8 4.1.1 FCC requirements ............................................................................................................... 8 4.1.2 CISPR requirements ............................................................................................................ 8 4.2 AGENCIES CERTIFICATIONS .......................................................................................................... 8 4.2.1 Product safety compliance .................................................................................................. 8 5 MECHANICAL ................................................................................................................................ 8 ISSUE DATE: 2023-5-31 Revision No.:…

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Applicant Declaration QSF27-14-04 Rev 1.0 Rev. Feb 6, 2023 Page 1 of 1 Original Issue: Jan. 4, 2021 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name CoreStar Co., Ltd Address No. 16-3, Shunping 1st St., Xitun Dist., Taichung City, 40754, Taiwan Grantee Code 2ANCG FCC ID 2ANCG-WTM1C10 Authorized Contact Name Daniel Lin Contact Email [email protected] Contact Phone +886-4-2295-0350 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. b) in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for: (1) labeling the equipment with the exact FCC ID as specified in this application, (2) compliance statement labeling pursuant to the applicable rules, (3) compliance of the equipment with the applicable technical rules, c) if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCC’s technical requirements. d) in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. e) in accordance with ISO 17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements. (1) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2) the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. (3) the Applicant shall, upon request by SGS, at the Applicant’s expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) neither the Applicant nor any party to the application is subject to a denial of Federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a “party” for these purposes. g) the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Link to the Covered List: Covered List CoreStar 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. CoreStar 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, established pursuant to §1.50002, as an entity producing “covered” equipment. Applicant Signature: Date: 2023/6/8 Print Name: Daniel Lin Title: - *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

CoreStar Co., Ltd Cover Letter‐Wireless Charger Approval FCC ID: 2ANCG-WTM1C10 Date: 2023/6/8 To whom it may concern: There’s a WTM1C10, that would like to have your authorization as an Inductive wireless power transfer applications approval. The specific product as below, WTM1C10, with its designed features and specified description, meets special requirements for KDB 680106 D01 section 5.2 requirements. Company: CoreStar Co., Ltd Product Name: WTM1C10 Model Number: WTM1C10 FCC ID: 2ANCG-WTM1C10 KDB 680106 D01 Section 5.b) Requirements: Product Technical Specification： Result: (1) Power transfer frequency is less than 1 MHz. 113.3-148.2kHz Complied (2) Output power from each primary coil is less than or equal to 15 watts. 10Watts Complied (3) The transfer system includes only single primary and secondary coils. This includes charging systems that may have multiple primary coils and clients that are able to detect and allow coupling only between individual pairs of coils. Only single primary coils Complied (4) Client device is placed directly in contact with the transmitter. The WPT client device is placed in direct contact with the WPT source. Complied (5) Mobile exposure conditions only (portable exposure conditions are not covered by this exclusion). Mobile exposure condition Complied (6) The aggregate H-field strengths at 15 cm surrounding the device and 20 cm above the top surface from all simultaneous transmitting coils are demonstrated to be less than 50% of the MPE limit. Refer to MPE report GZCR230600054502 Complied Sincerely, Name (Printed): Daniel Lin Title: - Signature: On behalf of Company: CoreStar Co., Ltd

SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-02 Rev 1.1 Page: 1 of 4 Appendix External Photos for GZCR2306000545AT SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-02 Rev 1.1 Page: 2 of 4 EUT Constructional Details (EUT Photos) WPC ANT SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-02 Rev 1.1 Page: 3 of 4 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-02 Rev 1.1 Page: 4 of 4

WTM1C10 FCC ID貼標位置 FCC ID :2ANCG- WTM1C10 IC ID :22282- WTM1C10 WTM1C10

SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-03 Rev 1.1 Page: 1 of 2 Appendix Internal Photos for GZCR2306000545AT SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-03 Rev 1.1 Page: 2 of 2 EUT Constructional Details (EUT Photos)

SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR230600054502 Page: 1 of 13 FCC ID: 2ANCG-WTM1C10 Ricky Liu Manager TEST REPORT Application No.: GZCR2306000545AT Applicant:CoreStar Co., Ltd Address of Applicant:No.16-3, Shunping 1st St,Xitun Dist., Taichung City 40754, Taiwan, China Manufacturer:CHANNEL WELL TECHNOLOGY CO., LTD Address of Manufacturer:No.222, Sec. 2, Nankan Rd., Lujhu, Dist., Taoyuan City 338, Taiwan, China Factory:Techitory Co., Ltd Address of Factory:No. 267-1, Sec. 1, Shenlin Rd., Daya Dist, Taichung City, Taiwan, China Postal Code 428 Equipment Under Test (EUT): EUT Name:WTM1C10 Model No.: WTM1C10 Standard(s) : 47 CFR Part 1.1310 KDB 680106 D01 Date of Receipt: 2023-06-05 Date of Test: 2023-06-13 to 2023-06-25 Date of Issue: 2023-07-03 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR230600054502 Page: 2 of 13 Revision Record VersionReport No.DateRemark 01GZCR2306000545022023-07-03Original Authorized for issue by: Kevin Zhang/Project Engineer Vico Cui/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR230600054502 Page: 3 of 13 2Test Summary Radio Spectrum Matter Part ItemStandardMethodRequirementResult Magnetic field strength 47 CFR Part 1.1310 KDB 680106 D01 47 CFR Part 1.1310 & KDB 680106 D01 Pass Note: E.U.T./EUT means Equipment Under Test. Pass means the test result passed the test standard requirement, please find the detailed decision rule in the report relative section. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR230600054502 Page: 4 of 13 3Contents Page 1Cover Page...............................................................................................................................................1 2Test Summary..........................................................................................................................................3 3Contents....................................................................................................................................................4 4General Information.................................................................................................................................5 4.1Details of E.U.T.................................................................................................................................5 4.2Description of Support Units..............................................................................................................5 4.3Measurement Uncertainty.................................................................................................................5 4.4Test Location.....................................................................................................................................5 4.5Test Facility.......................................................................................................................................6 4.6Deviation from Standards..................................................................................................................6 4.7Abnormalities from Standard Conditions...........................................................................................6 5Equipment List.........................................................................................................................................7 6Radio Spectrum Matter Test Results.....................................................................................................8 6.1Magnetic field strength......................................................................................................................8 6.1.1E.U.T. Operation...........................................................................................................................8 6.1.2Test Mode Description..................................................................................................................9 6.1.3Test Setup Diagram......................................................................................................................9 6.1.4Measurement Procedure and Data............................................................................................10 7Test Setup Photo....................................................................................................................................12 8EUT Constructional Details (EUT Photos)...........................................................................................13 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR230600054502 Page: 5 of 13 4General Information 4.1Details of E.U.T. Power supply:DC 9 V Test Voltage:AC 120 V, 60 Hz powered by AC/DC adapter refer to section 4.2 Cable(s):DC input cables Micro USB input ports Operation frequency:113.3kHz to 148.159kHz Modulation type:Load modulation Antenna type:Loop Antenna 4.2Description of Support Units DescriptionManufacturerModel No.Serial No. Mobile PhoneSAMSUNG SM-G9508R28K110W9JV AC/DC Adapter/ Model:HW- 110600C02; Inupt:AC 100-240V,1.8A Max.50/60Hz; Output:DC 5V/2A, 10V/4A, 11V/6A Max. JL28L4NBM03275 Wireless changing resistor load /5W/7.5W/10W/15W/ 4.3Measurement Uncertainty Test ItemMeasurement Uncertainty Magnetic field strengthMF:U=0.13dB,EF:U=0.4dB 4.4Test Location All tests were performed at: SGS-CSTC Standards Technical Services Co., Ltd., Guangzhou Branch EMC Laboratory, 198 Kezhu Road, Scientech Park, Guangzhou Economic & Technology Development District, Guangzhou, China 510663 Tel: +86 20 82155555Fax: +86 20 82075059 No tests were sub-contracted. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR230600054502 Page: 6 of 13 4.5Test Fac…

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SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR230600054501 Page: 1 of 30 FCC ID: 2ANCG-WTM1C10 Ricky Liu Manager TEST REPORT Application No.: GZCR2306000545AT Applicant:CoreStar Co., Ltd Address of Applicant:No.16-3, Shunping 1st St,Xitun Dist., Taichung City 40754, Taiwan, China Manufacturer:CHANNEL WELL TECHNOLOGY CO., LTD Address of Manufacturer:No.222, Sec. 2, Nankan Rd., Lujhu, Dist., Taoyuan City 338, Taiwan, China Factory:Techitory Co., Ltd Address of Factory:No. 267-1, Sec. 1, Shenlin Rd., Daya Dist, Taichung City, Taiwan, China Postal Code 428 Equipment Under Test (EUT): EUT Name:WTM1C10 Model No.: WTM1C10 Standard(s) : 47 CFR Part 15, Subpart C Date of Receipt: 2023-06-05 Date of Test: 2023-06-13 to 2023-06-25 Date of Issue: 2023-07-03 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR230600054501 Page: 2 of 30 Revision Record VersionReport No.DateRemark 01GZCR2306000545012023-07-03Original Authorized for issue by: Kevin Zhang/Project Engineer Vico Cui/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR230600054501 Page: 3 of 30 2Test Summary Radio Spectrum Technical Requirement ItemStandardMethodRequirementResult Antenna Requirement 47 CFR Part 15, Subpart C N/A 47 CFR Part 15, Subpart C 15.203 Pass Radio Spectrum Matter Part ItemStandardMethodRequirementResult 20dB Bandwidth ANSI C63.10 (2013) Section 6.9.2 47 CFR Part 15, Subpart C 15.215 Pass Conducted Emissions at AC Mains Power Port (150kHz-30MHz) ANSI C63.10 (2013) Section 6.2 47 CFR Part 15, Subpart C 15.207 Pass Restricted Bands ANSI C63.10 (2013) Section 6.10.5 47 CFR Part 15, Subpart C 15.205 Pass Radiated Emissions (9kHz-30MHz) ANSI C63.10 (2013) Section 6.4 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Emissions (30MHz-1GHz) 47 CFR Part 15, Subpart C ANSI C63.10 (2013) Section 6.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Note: E.U.T./EUT means Equipment Under Test. Pass means the test result passed the test standard requirement, please find the detailed decision rule in the report relative section. SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-TRF-01 Rev 1.1 Report No.: GZCR230600054501 Page: 4 of 30 3Contents Page 1Cover Page...............................................................................................................................................1 2Test Summary..........................................................................................................................................3 3Contents....................................................................................................................................................4 4General Information.................................................................................................................................6 4.1Details of E.U.T.................................................................................................................................6 4.2Description of Support Units..............................................................................................................6 4.3Measurement Uncertainty.................................................................................................................6 4.4Test Location.....................................................................................................................................6 4.5Test Facility.......................................................................................................................................7 4.6Deviation from Standards..................................................................................................................7 4.7Abnormalities from Standard Conditions...........................................................................................7 5Equipment List.........................................................................................................................................8 6Radio Spectrum Technical Requirement.............................................................................................10 6.1Antenna Requirement......................................................................................................................10 6.1.1Test Requirement:.......................................................................................................................10 6.1.2Conclusion..................................................................................................................................10 7Radio Spectrum Matter Test Results...................................................................................................11 7.120dB Bandwidth..............................................................................................................................11 7.1.1E.U.T. Operation.........................................................................................................................11 7.1.2Test Mode Description................................................................................................................11 7.1.3Test Setup Diagram....................................................................................................................11 7.1.4Measurement Procedure and Data............................................................................................11 7.2Conducted Emissions at AC Mains Power Port (150kHz-30MHz)..................................................13 7.2.1E.U.T. Operation.........................................................................................................................13 7.2.2Test Mode Description..........................................................................................…

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SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-04 Rev 1.1 Page: 1 of 4 Appendix Test Setup Photo for GZCR230600054501 Test Model No.: WTM1C10 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-04 Rev 1.1 Page: 2 of 4 Test Setup Photo Conducted Emissions at AC Mains Power Port (150kHz-30MHz) SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-04 Rev 1.1 Page: 3 of 4 Radiated Emissions (9kHz-30MHz) SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-04 Rev 1.1 Page: 4 of 4 Radiated Emissions (30MHz-1GHz)

SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-04 Rev 1.1 Page: 1 of 4 Appendix Test Setup Photo for GZCR230600054502 Test Model No.: WTM1C10 SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-04 Rev 1.1 Page: 2 of 4 Test Setup Photo Magnetic field strength Front Bear 15cm 15cm SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-04 Rev 1.1 Page: 3 of 4 Top Left 15cm 15cm SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch EMC-ARF-04 Rev 1.1 Page: 4 of 4 Right 15cm