WIYS1F3001POS Terminal

CASTLES TECHNOLOGY CO., LTD. Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Date: March 11, 2024 Subject: Certifications concerning “covered” equipment pursuant to Part 2.911(d)(5)(i) and (ii) To whom it may concern, CASTLES TECHNOLOGY CO., LTD. certifies that the equipment FCC ID: WIYS1F3001 for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. CASTLES TECHNOLOGY CO., LTD. certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List ( as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, ________________________ Name: Evelyn Chen Title: Project Manager of Product Certification Team E-mail: [email protected]

CASTLES TECHNOLOGY CO., LTD. Date: March 11, 2024 Power of Attorney To whom it may concern, Please be notified that I, Evelyn Chen, have designated Jim Tsai in Sporton International Inc. as the person being responsible for this project and to sign the form 731 and other documentation. Any and all acts carried out by Jim Tsai in Sporton International Inc., on the matters of relating to all processes required in the FCC approval and any communication needed with the national authority, shall have the same legal authority as acts on our own behalf. We further certifies that neither the applicant nor any party to this application, as defined in 47 CFR Ch. 1.2002 (b), is subject to a denial to Federal benefits, that include FCC benefits, pursuant to section 5301 of the Anti-Drug Abuse Act of 1998, 21 U.S.C. 835(a). This authorization is limited to the product of as following: FCC ID: WIYS1F3001 If you have any acknowledgement and response, please send it to Sporton International Inc. directly. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely yours, Name: Evelyn Chen E-mail: [email protected]

CASTLES TECHNOLOGY CO., LTD. Date: March 19, 2024 Federal Communications Commission Office of Engineering and Technology Laboratory Division 7435 Oakland Mills Rd Columbia MD 21046-1609 Subject: Request for Confidentiality FCC ID: WIYS1F3001 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission’s rules (47CFR§§0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure indefinitely. ⚫ Schematic Diagram ⚫ Block Diagram ⚫ Part List ⚫ Operational Description Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. In additional to above mentioned documents, pursuant to Public Notice DA 04-1705 of the Commission’ s policy, in order to comply with the marketing regulations in 47 CFT §2.803 and the importation rules in 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices. We are requesting the commission to grant short-term confidentiality request on the following attachment(s) for 180 days after the grant as outlined in Public Notice DA 04-1705. ⚫ External Photos ⚫ Internal Photos ⚫ Test Setup Photos ⚫ User Manual It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Best Regards, ______________________ Name: Evelyn Chen E-mail: [email protected]

S1F3 - Label Location FCC ID: WIYS1F3001 Back of EUT

Test Laboratory: Sporton International Inc. SAR/HAC Testing Lab Date: 2024/3/6 System Check_Head_13MHz DUT: CLA13-1011 Communication System: CW; Frequency: 13 MHz;Duty Cycle: 1:1 Medium: HSL_13_240306 Medium parameters used: f = 13 MHz; σ = 0.757 S/m; ε r = 53.4; ρ = 1000 kg/m 3 Ambient Temperature：23.5 °C; Liquid Temperature：22.5 °C DASY5 Configuration: - Probe: EX3DV4 - SN3931; ConvF(18.48, 18.48, 18.48) @ 13 MHz; Calibrated: 2023/10/24 - Sensor-Surface: 1.4mm (Mechanical Surface Detection) - Electronics: DAE4 Sn1805; Calibrated: 2023/5/16 - Phantom: ELI V8.0 (20deg probe tilt); Type: QD OVA 004 Ax; Serial: 2055 - Measurement SW: DASY52, Version 52.10 (4);SEMCAD X Version 14.6.14 (7501) Pin=1000mW/Area Scan (81x81x1): Interpolated grid: dx=1.500 mm, dy=1.500 mm Maximum value of SAR (interpolated) = 0.779 W/kg Pin=1000mW/Zoom Scan (5x5x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 31.39 V/m; Power Drift = -0.02 dB Peak SAR (extrapolated) = 0.986 W/kg SAR(1 g) = 0.514 W/kg; SAR(10 g) = 0.319 W/kg Smallest distance from peaks to all points 3 dB below = 16 mm Ratio of SAR at M2 to SAR at M1 = 52.9% Maximum value of SAR (measured) = 0.771 W/kg 0 dB = 0.779 W/kg = -1.08 dBW/kg

Test Laboratory: Sporton International Inc. SAR/HAC Testing Lab Date: 2024/3/6 #01_NFC_Top Side_0mm_13.56MHz Communication System: NFC; Frequency: 13.56 MHz;Duty Cycle: 1:1 Medium: HSL_13_240306 Medium parameters used: f = 14 MHz; σ = 0.748 S/m; ε r = 53.4; ρ = 1000 kg/m 3 Ambient Temperature：23.5 °C; Liquid Temperature：22.5 °C DASY5 Configuration: - Probe: EX3DV4 - SN3931; ConvF(18.48, 18.48, 18.48) @ 13.56 MHz; Calibrated: 2023/10/24 - Sensor-Surface: 1.4mm (Mechanical Surface Detection) - Electronics: DAE4 Sn1805; Calibrated: 2023/5/16 - Phantom: ELI V8.0 (20deg probe tilt); Type: QD OVA 004 Ax; Serial: 2055 - Measurement SW: DASY52, Version 52.10 (4);SEMCAD X Version 14.6.14 (7501) Area Scan (81x81x1): Interpolated grid: dx=1.500 mm, dy=1.500 mm Maximum value of SAR (interpolated) = 0.0290 W/kg Zoom Scan (5x5x7)/Cube 0: Measurement grid: dx=8mm, dy=8mm, dz=5mm Reference Value = 5.933 V/m; Power Drift = -0.04 dB Peak SAR (extrapolated) = 0.0640 W/kg SAR(1 g) = 0.018 W/kg; SAR(10 g) = 0.00796 W/kg Smallest distance from peaks to all points 3 dB below: Larger than measurement grid (> 16 mm) Ratio of SAR at M2 to SAR at M1 = 39.9% Maximum value of SAR (measured) = 0.0394 W/kg 0 dB = 0.0394 W/kg = -14.05 dBW/kg

TEL : 886-3-327-3456 Page 1 of 20 FAX : 886-3-328-4978 Issued Date : Mar. 18, 2024 Template version: 240125 FCC SAR TEST REPORT Report No. : FA422130 FCC SAR TEST REPORT FCC ID : WIYS1F3001 Equipment : POS Terminal Brand Name : Model Name : S1F3 Applicant : CASTLES TECHNOLOGY CO., LTD. 6F, NO. 207-5, SEC. 3, BEIXIN RD., XINDIAN DISTRICT, NEW TAIPEI CITY 231030, TAIWAN (R.O.C) Manufacturer : CASTLES TECHNOLOGY CO., LTD. 6F, NO. 207-5, SEC. 3, BEIXIN RD., XINDIAN DISTRICT, NEW TAIPEI CITY 231030, TAIWAN (R.O.C) Standard : FCC 47 CFR Part 2 (2.1093) The product was received on Mar. 05, 2024 and testing was started from Mar. 06, 2024 and completed on Mar. 06, 2024. We, SPORTON INTERNATIONAL INC., would like to declare that the tested sample provide by manufacturer and the test data has been evaluated in accordance with the test procedures given in 47 CFR Part 2.1093 and FCC KDB and has been pass the FCC requirement. The test results in this report apply exclusively to the tested model / sample. Without written approval of SPORTON INTERNATIONAL INC. Laboratory, the test report shall not be reproduced except in full. Sporton International Inc. Wensan Laboratory No.58, Aly. 75, Ln. 564, Wenhua 3rd, Rd., Guishan Dist., Taoyuan City 333010, Taiwan Approved by: Cona Huang / Deputy Manager TEL : 886-3-327-3456 Page 2 of 20 FAX : 886-3-328-4978 Issued Date : Mar. 18, 2024 Template version: 240125 FCC SAR TEST REPORT Report No. : FA422130 Table of Contents 1. Statement of Compliance ............................................................................................................................................. 4 2. Guidance Applied .......................................................................................................................................................... 4 3. Equipment Under Test (EUT) Information ................................................................................................................... 4 3.1 General Information ............................................................................................................................................... 4 4. RF Exposure Limits....................................................................................................................................................... 5 4.1 Uncontrolled Environment ...................................................................................................................................... 5 4.2 Controlled Environment .......................................................................................................................................... 5 5. Specific Absorption Rate (SAR) ................................................................................................................................... 6 5.1 Introduction ............................................................................................................................................................ 6 5.2 SAR Definition ........................................................................................................................................................ 6 6. System Description and Setup .................................................................................................................................... 7 6.1 Test Site Location ................................................................................................................................................... 7 6.2 E-Field Probe ......................................................................................................................................................... 8 6.3 Data Acquisition Electronics (DAE) ........................................................................................................................ 8 6.4 Phantom ................................................................................................................................................................. 9 6.5 Device Holder........................................................................................................................................................10 7. Measurement Procedures ...........................................................................................................................................11 7.1 Spatial Peak SAR Evaluation ................................................................................................................................ 11 7.2 Power Reference Measurement............................................................................................................................12 7.3 Area Scan .............................................................................................................................................................12 7.4 Zoom Scan ............................................................................................................................................................13 7.5 Volume Scan Procedures ......................................................................................................................................13 7.6 Power Drift Monitoring ...........................................................................................................................................13 8. Test Equipment List .....................................................................................................................................................14 9. System Verification ......................................................................................................................................................15 9.1 Tissue Verification .................................................................................................................................................15 9.2 System Performance Check Results .........................................................................…

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SP6672A NFC Smith Antenna Type: Loop

Sporton International Inc.(Kunshan) Page Number : 1 of 21 TEL : +86-512-57900158 Report Issued Date : Mar. 15, 2024 FCC ID: WIYS1F3001 Report Version : Rev. 01 Report Template No.: BU5-FR15CNFC Version 2.0 FCC RF Test Report Report No. : FR422301 FCC RF Test Report APPLICANT : CASTLES TECHNOLOGY CO., LTD. EQUIPMENT : POS Terminal BRAND NAME : MODEL NAME : S1F3 FCC ID : WIYS1F3001 STANDARD : FCC Part 15 Subpart C §15.225 CLASSIFICATION : (DXX) Low Power Communication Device Transmitter TEST DATE(S) : Feb. 28, 2024 ~ Mar. 04, 2024 We, Sporton International Inc. (Kunshan), would like to declare that the tested sample has been evaluated in accordance with the test procedures and has been in compliance with the applicable technical standards. The test results in this report apply exclusively to the tested model / sample. Without written approval of Sporton International Inc. (Kunshan), the test report shall not be reproduced except in full. Approved by: Jason Jia Sporton International Inc. (Kunshan) No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300 People’s Republic of China Sporton International Inc.(Kunshan) Page Number : 2 of 21 TEL : +86-512-57900158 Report Issued Date : Mar. 15, 2024 FCC ID: WIYS1F3001 Report Version : Rev. 01 Report Template No.: BU5-FR15CNFC Version 2.0 FCC RF Test Report Report No. : FR422301 TABLE OF CONTENTS TABLE OF CONTENTS ............................................................................................................................................... 2 REVISION HISTORY .................................................................................................................................................... 3 SUMMARY OF THE TEST RESULT ........................................................................................................................... 4 1. GENERAL DESCRIPTION ...................................................................................................................................... 5 1.1 Applicant ......................................................................................................................................................................... 5 1.2 Manufacturer .................................................................................................................................................................. 5 1.3 Product Feature of Equipment Under Test ..................................................................................................................... 5 1.4 Product Specification of Equipment Under Test ............................................................................................................. 5 1.5 Modification of EUT ........................................................................................................................................................ 6 1.6 Testing Location ............................................................................................................................................................. 6 1.7 Test Software ................................................................................................................................................................. 6 1.8 Applicable Standards...................................................................................................................................................... 6 2. TEST CONFIGURATION OF EQUIPMENT UNDER TEST .................................................................................... 7 2.1 Descriptions of Test Mode .............................................................................................................................................. 7 2.2 Connection Diagram of Test System .............................................................................................................................. 8 2.3 Table for Supporting Units .............................................................................................................................................. 9 2.4 EUT Operation Test Setup ............................................................................................................................................. 9 3. TEST RESULTS ..................................................................................................................................................... 10 3.1 AC Power Line Conducted Emissions Measurement ................................................................................................... 10 3.2 20dB and 99% OBW Spectrum Bandwidth Measurement ............................................................................................ 12 3.3 Frequency Stability Measurement ................................................................................................................................ 13 3.4 Field Strength of Fundamental Emissions and Mask Measurement ............................................................................. 14 3.5 Radiated Emissions Measurement ............................................................................................................................... 16 3.6 Antenna Requirements ................................................................................................................................................. 19 4. LIST OF MEASURING EQUIPMENT .................................................................................................................... 20 5. UNCERTAINTY OF EVALUATION ....................................................................................................................... 21 APPENDIX A. TEST RESULTS OF CONDUCTED EMISSION TEST APPENDIX B. TEST RESULTS OF CONDUCTED TEST ITEMS B1. Test Result of 20dB Spectrum Bandwidth B2. Test Result of Frequency Stability APPENDIX C. TEST RESULTS OF RADIATED TEST ITEMS C1. Test Result of Field Strength of Fundamental Emissions C2. Results …

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