2BEWX-TTFM-11Smart Tag

Zhejiang Lingzhu Technology Co., Ltd. Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Date: June 19, 2024 Subject: Certifications concerning “covered” equipment pursuant to Part 2.911(d)(5)(i) and (ii) To whom it may concern, Zhejiang Lingzhu Technology Co., Ltd. certifies that the equipment FCC ID: 2BEWX-TTFM-11 for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Zhejiang Lingzhu 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: Linyun Li E-mail: [email protected]

Zhejiang Lingzhu Technology Co., Ltd. Room 302,No 1 Building Huace Center,Xihu District, Hangzhou City, Zhejiang Province, China TEL：0571-86581786 Rev 1/26/2023 Zhejiang Lingzhu Technology Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 06-19-2024 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2BEWX-TTFM-11 Applicant FRN: 0034841213 Zhejiang Lingzhu Technology Co., Ltd. certifies that, as of the date of the filing of the application, Tuya Smart Inc.is our designated U.S. agent for service of process for the above referenced FCC ID. Zhejiang Lingzhu Technology Co., Ltd. accepts 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. Tuya Smart Inc. accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Name: Tuya Smart Inc. U.S. Agent FRN: 0034102913 Address: 160 Greentree Drive, Suite 101,Dover,DELAWARE,19904 Contact Person: Jingchao Wang Tel.: 818-699-5031 Email: [email protected] Sincerely, Zhejiang Lingzhu Technology Co., Ltd. Tuya Smart Inc. Linyun Li Jingchao Wang LINZOO LINZOO LINZOO LINZOO

Zhejiang Lingzhu Technology Co., Ltd. Date: June 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: 2BEWX-TTFM-11 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission’s rules (47 CFR §§ 0.457, 0.459), we are requesting confidentiality for exhibits filed with the commission supporting the application of equipment authorization for those items referenced above. Applicant requests the Commission to withhold indefinitely from public disclosure the following attachments under Long-Term Confidentiality.  Schematic Diagrams  Block Diagrams  Operational Description  Tune-up Procedure The above listed documents contain detailed system and equipment descriptions that are proprietary and confidential information under applicant trade secret protection. Public disclosure of above documents would be harmful to our company and would provide competitors an unfair advantage. This information is not made publicly available even after commercial release of the device. In additional to the 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 CFR §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 request the commission to grant short-term confidentiality request on the following attachments 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 correspondence during certification review process cannot be granted as confidential documents and that information will be available for public review once the grant of equipment authorization is issued. Sincerely, Name: Linyun Li E-mail: [email protected]

Zhejiang Lingzhu Technology Co., Ltd. Date: June 19, 2024 To whom it may concern, Please be notified that I, Linyun Li, have designated Jim Tsai of Sporton International Inc. as the persons being responsible for this project and to sign the form 731 and other documentation. Any and all acts carried out in their professional capacity by Jim Tsai of Sporton International Inc. in connection with all processes required for FCC approval and any communication needed with the national authority, shall have the same legal authority as acts on our own behalf. We further certify 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. 862. This authorization is limited to the following product, and shall remain in place until completion of the certification, or until revoked, whichever is earlier: FCC ID: 2BEWX-TTFM-11 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 don’t hesitate to contact me. Sincerely yours, Name: Linyun Li E-mail: [email protected]

Sporton International Inc. (Kunshan) Page Number : 1 of 6 TEL : +86-512-57900158 Report Issued Date : May 30, 2024 FCC ID : 2BEWX-TTFM-11 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA442311 RF Exposure Evaluation Report APPLICANT : Zhejiang Lingzhu Technology Co., Ltd. EQUIPMENT : Smart Tag MODEL NAME : TTFM-11 FCC ID : 2BEWX-TTFM-11 STANDARD : 47 CFR PART 2.1093 FCC KDB 447498 D01 v06 The product evaluation date was started from May 28, 2024 and completed on May 28, 2024. We, Sporton International Inc. (Kunshan), would like to declare that the device has been evaluated in accordance with 47 CFR Part 2.1093 and FCC KDB 447498 D01 v06, and pass the limit. Without written approval of Sporton International Inc. (Kunshan), the test report shall not be reproduced except in full. Approved by: Si Zhang 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 6 TEL : +86-512-57900158 Report Issued Date : May 30, 2024 FCC ID : 2BEWX-TTFM-11 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA442311 Table of Contents 1. ADMINISTRATION DATA ........................................................................................................................... 4 1.1. Testing Laboratory ............................................................................................................................. 4 2. DESCRIPTION OF EQUIPMENT UNDER TEST (EUT) ............................................................................. 5 3. MAXIMUM RF TUNE UP POWER AMONG PRODUCTION UNITS .......................................................... 6 4. RF EXPOSURE EVALUATION ................................................................................................................... 6 Sporton International Inc. (Kunshan) Page Number : 3 of 6 TEL : +86-512-57900158 Report Issued Date : May 30, 2024 FCC ID : 2BEWX-TTFM-11 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA442311 Revision History REPORT NO. VERSION DESCRIPTION ISSUED DATE FA442311 Rev. 01 Initial issue of report May 30, 2024 Sporton International Inc. (Kunshan) Page Number : 4 of 6 TEL : +86-512-57900158 Report Issued Date : May 30, 2024 FCC ID : 2BEWX-TTFM-11 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA442311 1. Administration Data 1.1. Testing Laboratory Sporton International Inc. (Kunshan) is accredited to ISO/IEC 17025:2017 by American Association for Laboratory Accreditation with Certificate Number 5145.02. Testing Laboratory Test Firm Sporton International Inc. (Kunshan) Test Site Location No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300 People’s Republic of China TEL : +86-512-57900158 Test Site No. Sporton Site No. FCC Designation No. FCC Test Firm Registration No. SAR01-KS CN1257 314309 Applicant Company Name Zhejiang Lingzhu Technology Co., Ltd. Address Room 302, No 1 Building Huace Center, Xihu District, Hangzhou City, Zhejiang Province, China Manufacturer Company Name Zhejiang Lingzhu Technology Co., Ltd. Address Room 302, No 1 Building Huace Center, Xihu District, Hangzhou City, Zhejiang Province, China Sporton International Inc. (Kunshan) Page Number : 5 of 6 TEL : +86-512-57900158 Report Issued Date : May 30, 2024 FCC ID : 2BEWX-TTFM-11 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA442311 2. Description of Equipment Under Test (EUT) Product Feature & Specification EUT Type Smart Tag Model Name TTFM-11 FCC ID 2BEWX-TTFM-11 Wireless Technology and Frequency Range Bluetooth: 2402 MHz ~ 2480 MHz Mode Bluetooth LE : GFSK Antenna Type Bluetooth: PCB Antenna Antenna Gain Bluetooth: -0.44 dBi HW Version V1.0.0 EUT Stage Production Unit Remark: 1. The above EUT's information was declared by manufacturer. Please refer to the specifications or user's manual for more detailed description. Comments and Explanations: 1. The declared of product specification for EUT presented in the report are provided by the manufacturer, and the manufacturer takes all the responsibilities for the accuracy of product specification. 2. The maximum RF output tune up power, antenna gain also the safe distance used for evaluate RF exposure were declared by manufacturer. Sporton International Inc. (Kunshan) Page Number : 6 of 6 TEL : +86-512-57900158 Report Issued Date : May 30, 2024 FCC ID : 2BEWX-TTFM-11 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA442311 3. Maximum RF Tune Up power among production units <Bluetooth> Mode Maximum Average Power (dBm) Bluetooth LE 1.0 4. RF Exposure Evaluation Mode Maximum Average Power (dBm) Bluetooth LE 1.0 Note: 1. Per KDB 447498 D01v06 the 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR  f(GHz) is the RF channel transmit frequency in GHz  Power and distance are rounded to the nearest mW and mm before calculation  The result is rounded to one decimal place for comparison Bluetooth Max Power (dBm) Separation Distance (mm) Frequency (GHz) exclusion thresholds 1.0 < 5 2.48 0.4 Conclusion: Per KDB 447498 D01v06, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. The test exclusion threshold is 0.4 which is ≤ 3.0 for 1-g SAR, 1-g SAR and extremity SAR testing is not required, and complied with Specific Absorption Rate (SAR) for general population/uncontrolled exposure limits (1.6 W/kg for 1g SAR) specified in FCC 47 CFR part 2 (2.1093). ------THE END------

Zhejiang Lingzhu Technology Co., Ltd. Antenna Specification Manufacture：TUYA Product Name：TTFM-11 Antenna Antenna Type：PCB Test Date：2024.4.24 Tested by： Approved by： Zhejiang Lingzhu Technology Co., Ltd. Content 1.General Description ................................................................................. 1 2.Test Configurations .................................................................................. 2 2.1 Test Environment ............................................................................ 2 2.2 Test Equipment ............................................................................... 2 2.3 Test Principle ................................................................................... 2 3.Test Results .............................................................................................. 3 3.1 Gain and Efficiency.......................................................................... 3 3.2 Radiation Pattern ............................................................................ 4 Zhejiang Lingzhu Technology Co., Ltd. 1 1.General Description Manufacturer Zhejiang Lingzhu Technology Co., Ltd. Address Room 302,No 1 Building Huace Center,Xihu District, Ha ngzhou City, Zhejiang Province,China Test Location Room 302,No 1 Building Huace Center,Xihu District, Ha ngzhou City, Zhejiang Province,China Product Name TTFM-11 Antenna Product model TTFM-11 Antenna Antenna Type PCB Antenna Test Items Gain; Efficiency; Radiation Pattern Test Frequency 2400-2500MHz Instrument Calibration Date 2024.01.05 Software Version V1.0 Test Standard ANSI/IEEE Std 149-1979 Zhejiang Lingzhu Technology Co., Ltd. 2 2.Test Configurations 2.1 Test Environment Temperature (°C) 25 Humidity (%RH) 60 Atmospheric Pressure (kPa) 100.5 2.2 Test Equipment Test System TEM 24 Multi-probe Microwave Chamber Test Instrument Agilent E5071B 2.3 Test Principle Zhejiang Lingzhu Technology Co., Ltd. 3 3.Test Results 3.1 Gain and Efficiency Frequency (MHz) Peak Gain (dBi) Efficiency (%) 2400 -0.44 28.18 2410 -0.75 29.92 2420 -0.45 29.72 2430 -0.82 28.97 2440 -1.19 24.6 2450 -2.01 25.7 2460 -1.32 24.83 2470 -1.79 24.55 2480 -1.78 22.54 2490 -2.33 20.99 2500 -2.3 18.97 Zhejiang Lingzhu Technology Co., Ltd. 4 3.2 Radiation Pattern Phi 0 2D Phi 90 2D Theta 90 2D Zhejiang Lingzhu Technology Co., Ltd. 5 2400MHz 3D 2450MHz 3D 2500MHz 3D

Sporton International Inc. (Kunshan) Page Number : 1 of 37 TEL : +86-512-57900158 Report Issued Date : Jun. 13, 2024 FCC ID: 2BEWX-TTFM-11 Report Version : Rev. 01 Report Template No.: BU5-FR15CBLE Version 2.0 FCC RF Test Report Report No. : FR442311 FCC RF Test Report APPLICANT : Zhejiang Lingzhu Technology Co., Ltd. EQUIPMENT : Smart Tag MODEL NAME : TTFM-11 FCC ID : 2BEWX-TTFM-11 STANDARD : FCC Part 15 Subpart C §15.247 CLASSIFICATION : (DTS) Digital Transmission System TEST DATE(S) : May 11, 2024 ~ May 16, 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 37 TEL : +86-512-57900158 Report Issued Date : Jun. 13, 2024 FCC ID: 2BEWX-TTFM-11 Report Version : Rev. 01 Report Template No.: BU5-FR15CBLE Version 2.0 FCC RF Test Report Report No. : FR442311 TABLE OF CONTENTS REVISION HISTORY .......................................................................................................................................... 3 SUMMARY OF 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 Carrier Frequency Channel ............................................................................................................... 7 2.2 Test Mode .......................................................................................................................................... 8 2.3 Connection Diagram of Test System ................................................................................................. 9 2.4 EUT Operation Test Setup ................................................................................................................ 9 2.5 Measurement Results Explanation Example ..................................................................................... 9 3 TEST RESULT .......................................................................................................................................... 10 3.1 6dB Bandwidth Measurement ......................................................................................................... 10 3.2 Output Power Measurement ............................................................................................................ 14 3.3 Power Spectral Density Measurement ............................................................................................ 15 3.4 Conducted Band Edges and Spurious Emission Measurement ..................................................... 22 3.5 Radiated Band Edges and Spurious Emission Measurement ........................................................ 31 3.6 Antenna Requirements .................................................................................................................... 35 4 LIST OF MEASURING EQUIPMENT ........................................................................................................ 36 5 MEASUREMENT UNCERTAINTY ............................................................................................................ 37 APPENDIX A. CONDUCTED TEST RESULTS APPENDIX B. RADIATED SPURIOUS EMISSION APPENDIX C. DUTY CYCLE PLOTS APPENDIX D. SETUP PHOTOGRAPHS Sporton International Inc. (Kunshan) Page Number : 3 of 37 TEL : +86-512-57900158 Report Issued Date : Jun. 13, 2024 FCC ID: 2BEWX-TTFM-11 Report Version : Rev. 01 Report Template No.: BU5-FR15CBLE Version 2.0 FCC RF Test Report Report No. : FR442311 REVISION HISTORY REPORT NO. VERSION DESCRIPTION ISSUED DATE FR442311 Rev. 01 Initial issue of report Jun. 13, 2024 Sporton International Inc. (Kunshan) Page Number : 4 of 37 TEL : +86-512-57900158 Report Issued Date : Jun. 13, 2024 FCC ID: 2BEWX-TTFM-11 Report Version : Rev. 01 Report Template No.: BU5-FR15CBLE Version 2.0 FCC RF Test Report Report No. : FR442311 SUMMARY OF TEST RESULT Report Section FCC Rule Description Limit Result Remark 3.1 15.247(a)(2) 6dB Bandwidth ≥ 0.5MHz Pass - 3.1 - 99% Bandwidth - Report only - 3.2 15.247(b)(…

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