2BEXWWL7002Electronic Ring Lock

Date: 2025-10-07 FCC ID: 2BEXWWL7002 To the attention of Federal Communications Commission Authorization and Evaluation Division Attestation Statements Attestation Statements Part 2.911(d)(5)(i) Filing SINOX COMPANY LTD. 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. Attestation Statements Part 2.911(d)(5)(ii) Filing SINOX COMPANY LTD. 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. Sincerely yours, ----------------------------------------------- Howard Chang, Quality Assurance Engineer SINOX COMPANY LTD. Tel: +886-2-2221-6258 Ext.1525 E-mail: [email protected]

Certification designating a U.S. Agent for service of process: As required by section 2.911(d)(7), the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. In either scenario, the designation of the U.S. agent for service of process should be provided as an attachment to the equipment authorization application. The applicant must provide a written certification, which must: i. Be signed by both the applicant and designated agent for service of process, if the agent is different from the applicant. ii. Acknowledge the applicant’s consent and the designated agent’s obligation to accept service of process. iii. Provide a physical U.S. address and email for the designated agent. iv. Acknowledge the applicant’s acceptance to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Unofficial information provided by FCC personnel on February 14, 2023, via the monthly call with the TCB Council: The Agent for Process of Service:  cannot be a TCB or affiliated with a TCB (e.g. could not be a person who works for a TCB or a company that owns or is owned by the TCB)  cannot be a [FCC recognised] Lab or affiliated with a test lab (e.g. could not be a person who works for a Lab or a company that owns or is owned by the Lab)  Agent can be Individual Entity or a Company Entity  Agent Entity must be located in US, US address/phone  Entity acting as Agent must have FRN (best practice, put FRN on Agent Letter)  Agent letter does not have to be FCC ID specific, can be general Agent for Grantee For devices being marketed or for which marketing has ceased for less than 1 year, if the Agent for Process of Service changes, then for every TC Number the TCB must request the FCC to put application into Audit Mode and Agent Letter needs to be updated (superseded). NOTE: The U.S. Agent for Service of Process should not be confused with the authorized agent used for signing the 731 form, other cover letters within the application, and/or the agent who may interface with the TCB. U.S. Agent Designation for Service of Process ATTENTION: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA REGARDING: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: Approve-IT, Inc. Contact Name: Nathan Grinager Street Address: 8011 34 th Ave South, Suite 342 City/Province/Zip: Bloomington, MN 55425 Telephone No: 651-247-1678 Email: [email protected] FRN #: 0027533835 This letter is to confirm that we (“the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature: Date: October 20, 2025 Signed by (Printed Name/Title): Nathan Grinager / Co-President The Applicant confirms its explicit consent and acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: SINOX COMPANY LTD. FRN: 0034851584 FCC ID: 2BEXWWL7002 Contact Name: Mr. Howard Chang Street Address: 3F, No. 2, Lane 93, Chien-1 Rd., Chung-Ho Dist., City/Province/Zip: New Taipei City, 235602 Taiwan Telephone No: +886-2-2221-6258 Ext.1525 Email: [email protected] Applicant Signature: Date:10/07/2025 Signed by (Printed Name/Title): Mr. Howard Chang / Quality Assurance Engineer

Date: 2025-10-07 FCC ID: 2BEXWWL7002 To the attention of Federal Communications Commission Authorization and Evaluation Division Permanent Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, the Applicant hereby requests confidential treatment of information accompanying this Application as outlined below: Schematics Block Diagram Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457, disclosure of this Application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely yours, ----------------------------------- Howard Chang, Quality Assurance Engineer SINOX COMPANY LTD. Tel: +886-2-2221-6258 Ext.1525 E-mail: [email protected]

Date: 2025-10-07 FCC ID: 2BEXWWL7002 To the attention of Federal Communications Commission Authorization and Evaluation Division Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we request short-term confidential treatment for the following information until (180 days after the Grant Date of Equipment Authorization) in order to ensure sensitive business information remains confidential until the actual marketing of the device: External photos Test Setup photos User’s manual Internal Photos Sincerely yours, ----------------------------------- Howard Chang, Quality Assurance Engineer SINOX COMPANY LTD. Tel: +886-2-2221-6258 Ext.1525 E-mail: [email protected]

Date: 2025-10-07 FCC ID: 2BEXWWL7002 AUTHORIZATION LETTER To Whom It May Concern: SINOX COMPANY LTD. hereby authorizes Emerald Chen / Specialist of Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch (“BV CPS Taoyuan”), to act on its behalf in all matters relating to the Federal Communication Commission (“FCC”) application for equipment authorization in connection with the FCC ID listed above, including signing of all documents relating to these matters. Any and all acts carried out by Emerald Chen / Specialist of BV CPS Taoyuan on SINOX COMPANY LTD.’s behalf, within the scope of the powers granted herein, shall have the same effect as acts of its own. If you have any questions regarding the authorization, please don’t hesitate to contact us. Sincerely yours, ----------------------------------------------- Howard Chang, Quality Assurance Engineer SINOX COMPANY LTD. Tel: +886-2-2221-6258 Ext.1525 E-mail: [email protected]

WL7002 WL70xx Label and label location FCC ID: 2BEXWWL7002

Report No.: MFABTX-WTW-P25040556 Page No. 1 / 8 Report Format Version: 7.1.0 RF EXPOSURE REPORT CERTIFICATE OF CONFORMITY FCC Rule Part: FCC Part 2 (Section 2.1091) Report No.: MFABTX-WTW-P25040556 FCC ID: 2BEXWWL7002 Product: Electronic Ring Lock Brand: SINOX Model No.: WL7002 Series Model: WL70XX (XX stands for: 00~99) Received Date: 2025/4/24 Test Date: 2025/9/5 Issued Date: 2025/9/25 Applicant: SINOX COMPANY LTD. Address: 3F, No. 2, Lane 93, Chien-I Rd., Chung-Ho Dist., New Taipei City, 235602, Taiwan Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Lin Kou Laboratories Lab Address: No. 47-2, 14th Ling, Chia Pau Vil., Lin Kou Dist., New Taipei City, Taiwan Test Location: No. 19, Hwa Ya 2nd Rd., Wen Hwa Vil., Kwei Shan Dist., Taoyuan City 33383, Taiwan FCC Registration / Designation Number: 788550 / TW0003 Approved by: , Date: 2025/9/25 Jeremy Lin / Project Engineer This test report consists of 8 pages in total. It may be duplicated completely for legal use with the approval of the applicant. It should not be reproduced except in full, without the written approval of our laboratory. The test results in the report only apply to the tested sample. The test results in this report are traceable to the national or international standards. Prepared by : Gina Liu / Specialist This report is governed by, and incorporates by reference, the Conditions of Testing as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our- business/cps/about-us/terms-conditions/ and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. Statements of conformity are based on simple acceptance criteria without taking measurement uncertainty into account, unless otherwise requested in writing. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Report No.: MFABTX-WTW-P25040556 Page No. 2 / 8 Report Format Version: 7.1.0 Table of Contents Release Control Record ....................................................................................................................................................... 3 1 Certificate .................................................................................................................................................................... 4 2 Applicable RF Exposure Limit .................................................................................................................................. 5 3 Test Results ................................................................................................................................................................ 7 4 Conclusion .................................................................................................................................................................. 7 5 Information of the Testing Laboratories .................................................................................................................. 8 Report No.: MFABTX-WTW-P25040556 Page No. 3 / 8 Report Format Version: 7.1.0 Release Control Record Issue No. Description Date Issued MFABTX-WTW-P25040556 Original release. 2025/9/25 Report No.: MFABTX-WTW-P25040556 Page No. 4 / 8 Report Format Version: 7.1.0 1 Certificate Product: Electronic Ring Lock Brand: SINOX Test Model: WL7002 Series Model: WL70XX (XX stands for: 00~99) Sample Status: Engineering sample Applicant: SINOX COMPANY LTD. Test Date: 2025/9/5 FCC Rule Part: FCC Part 2 (Section 2.1091) Standard: KDB 447498 D04 Interim General RF Exposure Guidance v01 The above equipment has been tested by Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch, and found compliance with the requirement of the above standards. The test record, data evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts of the measurements of the sample’s RF characteristics under the conditions specified in this report. Report No.: MFABTX-WTW-P25040556 Page No. 5 / 8 Report Format Version: 7.1.0 2 Applicable RF Exposure Limit § 1.1310 Radiofrequency radiation exposure limits. (a) Specific absorption rate (SAR) shall be used to evaluate the environmental impact of human exposure to radiofrequency (RF) radiation as specified in § 1.1307(b) of this part within the frequency range of 100 kHz to 6 GHz (inclusive). (b) The SAR limits for occupational/controlled exposure are 0.4 W/kg, as averaged over the whole body, and a peak spatial-average SAR of 8 W/kg, averaged over any 1 gram of tissue (defined as a tissue volume in the shape of a cube). Exceptions are the parts of the human body treated as extremities, such as hands, wrists, feet, ankles, and pinnae, where the peak spatial-average SAR limit for occupational/controlled exposure is 20 W/kg, averaged over any 10 grams of tissue (defined as a tissue volume in the shape of a cube). Exposure may be averaged over a …

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Application Note AN043 Small Size 2.4 GHz PCB antenna By Audun Andersen 1 KEYWORDS • CC25xx • CC24xx • CC2480 • PCB antenna • USB dongle • 2.4 GHz • Inverted F Antenna 2 INTRODUCTION The PCB antenna used on the CC2511 USB dongle reference design is described in this application note. Even if the antenna presented is for a USB dongle design it can be used in all 2.4 GHz designs, especially where small space is required for the antenna. This application note describes the antenna dimensions, the RF performance and considerations for complying with regulatory limits when using this design. The suggested antenna design requires no more than 15.2 x 5.7 mm of space and ensures a VSWR ratio of less than 2 across the 2.4 GHz ISM band when connected to a 50 ohm source. Figure 1: CC2511 USB Dongle SWRA117D Page 1 of 21 Application Note AN043 Table of Contents 1 KEYWORDS...................................................................................................................1 2 INTRODUCTION.............................................................................................................1 3 ABBREVIATIONS...........................................................................................................2 4 ANTENNA DESIGN........................................................................................................3 4.1 DESIGN GOALS..........................................................................................................3 4.2 SIMULATION...............................................................................................................3 4.3 LAYOUT AND IMPLEMENTATION...................................................................................4 5 TEST RESULTS.............................................................................................................5 5.1 REFLECTION..............................................................................................................5 5.2 RADIATION PATTERN..................................................................................................7 5.3 OUTPUT POWER......................................................................................................15 5.4 SPURIOUS EMISSION AND HARMONICS......................................................................17 6 CONCLUSION ..............................................................................................................20 7 GENERAL INFORMATION..........................................................................................21 7.1 DOCUMENT HISTORY................................................................................................21 3 ABBREVIATIONS CAD Computer Aided Design CC24xx CC2400, CC2420, CC2430 and CC2431 CC25xx CC2500, CC2510, CC2511, CC2550 and CC2520 CC2480 Z-Accel ZigBee Processor IFA Inverted F Antenna ISM Industrial, Scientific and Medical LOS Line Of Sight PCB Printed Circuit Board PER Packet Error Rate VSWR Voltage Standing Wave Ratio SWRA117D Page 2 of 21 Application Note AN043 4 ANTENNA DESIGN The PCB antenna on the CC2511 USB dongle reference design is a meandered Inverted F Antenna (IFA). The IFA was designed to match an impedance of 50 ohm at 2.45 GHz. Thus no additional matching components are necessary. 4.1 Design Goals The reflection at the feed point of the antenna determines how much of the applied power is delivered to the antenna. A reflection of less than -10 dB across the 2.4 GHz ISM band, when connected to a 50 ohm source, was a design goal. Reflection of less than -10 dB, or VSWR less than 2, ensures that more than 90% of the available power is delivered to the antenna. Bandwidth is in this document defined as the frequency band where more than 90% of the available power is delivered to the antenna. Another design goal was to fit the size of the PCB antenna on a USB dongle and to obtain good performance also when the dongle is connected to a computer. 4.2 Simulation IE3D from Zeland, which is an electromagnetic simulation tool, was used to design the antenna. The accuracy of the simulation is controlled by the mesh. An increase of the mesh increases the simulation time. Thus, for initial simulations mesh = 1 should be used. When a fairly good result is achieved a higher mesh should be used to obtain more accurate results. Comparison of simulation and measurement results shows that the measured reflection is between the result obtained with mesh = 5 and mesh = 1; see Figure 2 for details. Figure 2: Comparison of Simulation and Measurements Results SWRA117D Page 3 of 21 Application Note AN043 4.3 Layout and Implementation Small changes of the antenna dimensions may have large impact on the performance. Therefore it is strongly recommended to make an exact copy of the reference design to achieve optimum performance. The easiest way to implement the antenna is to import the gerber or DXF file showing the antenna layout. These files are named IFA_USB.spl and IFA_USB.dxf respectively and are included in the CC2511 USB dongle reference design available from http://www.ti.com\lpw. The imported file can be used as a template when drawing the antenna. By using this procedure it should be possible to make an exact copy. If the PCB CAD tool being used does not support import of DXF or gerber files, Figure 3 and Table 1 should be used to ensure correct implementation. It is recommended to generate a gerber file for comparison with IFA_USB.spl when making a manual implementation. Most gerber viewers have the possibility to import several gerber files at the same time. Thus by placing the gerber file, showing the manually implemented antenna, on top of IFA_USB.spl it is easy to verify that the antenna is correctly implemented. It is also recommended to use the same thickness and type of PCB material as used in the reference design. Information about the PCB can be found in a separate readme file included in the reference design. To compensate for a thicker/thinner P…

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Report No.: RFABTX-WTW-P25040556 Page No. 1 / 43 Report Format Version: 7.2.0 TEST REPORT CERTIFICATE OF CONFORMITY Standard: 47 CFR FCC Part 15, Subpart C (Section 15.247) Report No.: RFABTX-WTW-P25040556 FCC ID: 2BEXWWL7002 Product: Electronic Ring Lock Brand: SINOX Model No.: WL7002 Series Model: WL70XX (XX stands for: 00~99) Received Date: 2025/4/24 Test Date: 2025/8/28 ~ 2025/9/5 Issued Date: 2025/9/25 Applicant: SINOX COMPANY LTD. Address: 3F, No. 2, Lane 93, Chien-I Rd., Chung-Ho Dist., New Taipei City, 235602, Taiwan Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Lin Kou Laboratories Lab Address: No. 47-2, 14th Ling, Chia Pau Vil., Lin Kou Dist., New Taipei City, Taiwan Test Location: No. 19, Hwa Ya 2nd Rd., Wen Hwa Vil., Kwei Shan Dist., Taoyuan City 33383, Taiwan FCC Registration / Designation Number: 788550 / TW0003 Approved by: , Date: 2025/9/25 Jeremy Lin / Project Engineer This test report consists of 43 pages in total. It may be duplicated completely for legal use with the approval of the applicant. It should not be reproduced except in full, without the written approval of our laboratory. The test results in the report only apply to the tested sample. The test results in this report are traceable to the national or international standards. Prepared by : Gina Liu / Specialist This report is governed by, and incorporates by reference, the Conditions of Testing as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our- business/cps/about-us/terms-conditions/ and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. Statements of conformity are based on simple acceptance criteria without taking measurement uncertainty into account, unless otherwise requested in writing. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Report No.: RFABTX-WTW-P25040556 Page No. 2 / 43 Report Format Version: 7.2.0 Table of Contents Release Control Record ....................................................................................................................................................... 4 1 Certificate .................................................................................................................................................................... 5 2 Summary of Test Results .......................................................................................................................................... 6 2.1 Measurement Uncertainty ........................................................................................................................................ 6 2.2 Supplementary Information ...................................................................................................................................... 6 3 General Information ................................................................................................................................................... 7 3.1 General Description .................................................................................................................................................. 7 3.2 Antenna Description of EUT ..................................................................................................................................... 7 3.3 Channel List .............................................................................................................................................................. 8 3.4 Test Mode Applicability and Tested Channel Detail .................................................................................................. 8 3.5 Duty Cycle of Test Signal .......................................................................................................................................... 9 3.6 Test Program Used and Operation Descriptions .................................................................................................... 10 3.7 Connection Diagram of EUT and Peripheral Devices ............................................................................................ 10 3.8 Configuration of Peripheral Devices and Cable Connections ................................................................................ 10 4 Test Instruments ...................................................................................................................................................... 11 4.1 RF Output Power .................................................................................................................................................... 11 4.2 Power Spectral Density .......................................................................................................................................... 11 4.3 6 dB Bandwidth ...............................................................................................…

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