2AZ9W-WR01-01CHWR01-01CH

1/1 US Agent for Service of ProcessLETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: THREE STONES MEDIA LLC FRN: 0033401761 Contact Name: Sijie Zhang Address: 1200 Broadway St. APT 329, Los Angeles, CA90015 Telephone No: +1 267 909 3692 Email: [email protected] Applicant: Company name: Ningbo Deyi Smart Home Co., Ltd Product Description: WR01-01CH Grantee code: 2AZ9W FCC ID: 2AZ9W-WR01-01CH FRN: 0031020720 Contact Name: Jack sun Address: 101-102, Building 2, No.341, Wuli Plate, Jiaochuan Street, Zhenhai District, Ningbo city, Zhejiang Province, China Telephone No: 0755-61156566 Email: [email protected] [Ningbo Deyi Smart Home Co., Ltd] certifies that, as of the date of this filing of the application with the TCB, [THREE STONES MEDIA LLC] is our designated US agent for service of process for the above referenced FCC ID. [Ningbo Deyi Smart Home 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 equipment. [THREE STONES MEDIA LLC] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicantis aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. 1/1 Date: 25/03/2024 Applicant’s Name: Jack sun US Agent’s Name: Sijie Zhang Title:manager Title: President Signature Signature

C5266091_X24_Ed.2 1/1 “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: Ningbo Deyi Smart Home Co., Ltd Grantee code: 2AZ9W FCC ID: 2AZ9W-WR01-01CH Contact Name: Jack sun Address: 101-102, Building 2, No.341, Wuli Plate, Jiaochuan Street, Zhenhai District, Ningbo city, Zhejiang Province, China Telephone No: 0755-61156566 Fax No: 0755-3699 5506 Email: [email protected] FRN: 0031020720 i. [Ningbo Deyi Smart Home 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. The applicant must sign this certification. ii. [Ningbo Deyi Smart Home Co., Ltd] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. Theapplicantmustsignthiscertification. Ningbo Deyi Smart Home Co., Ltd certifies that, as of the date of the filing of theapplication, the applicant is notidentified on the Covered List as an entity producing “covered”equipment. Date: 28/03/2024 Applicant’s Name: Jack sun Title: General Manager Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

Ningbo Deyi Smart Home Co., Ltd Family models declaration letter. 3/25/2024 We Company: Ningbo Deyi Smart Home Co., Ltd Address: 101-102, Building 2, No.341, Wuli Plate, Jiaochuan Street, Zhenhai District, Ningbo city, Zhejiang Province, China Product: WR01-01CH Model Name: WR01-01CH Family Model: WR01-05CH FCC ID: 2AZ9W-WR01-01CH All the model are the same circuit and RF module, except the model names. We (Ningbo Deyi Smart Home Co., Ltd) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.), same mechanical structure and design (including product enclosure, materials, etc.), the only difference is theAll the model are the same circuit and RF module, except the model names. Thanks Sincerely, Signature [Name] Jack sun [Title] Gernal manager [email protected]

C5266091_X8_Ed.1 1/1 Letter of Authorization < Ningbo Deyi Smart Home Co., Ltd > Company: Ningbo Deyi Smart Home Co., Ltd Address: 101-102, Building 2, No.341, Wuli Plate, Jiaochuan Street, Zhenhai District, Ningbo city, Zhejiang Province, China Product Name: WR01-01CH Model Number: WR01-01CH, WR01-05CH FCC Identifier: 2AZ9W-WR01-01CH We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Jack sun Date: 25/03/2024 Title: Manager Signature of applicant:

C5266091_X10_Ed.2 1/1 < Ningbo Deyi Smart Home Co., Ltd > Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 25/03/2024 Subject: Request for Confidentiality FCC ID: 2AZ9W-WR01-01CH To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location Attestation Statement External Photos Block Diagram Schematics Test Report Test Setup Photos User’s Manual NOTE 1 Internal Photos NOTE 1 Parts List / Tune Up / BOM List RF Exposure Info Operational Description Cover Letter(s) FCC Software Security Requirements for UNII devices NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. 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 case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of _180_ days from the date of the Grant of Equipment Authorization and prior to marketing. C5266091_X10_Ed.2 1/1 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. Sincerely, Signature: Name: Jack sun Title: Manager

Model: WR01-01CH 433.92MHz Battery: AAA FCC ID:2AZ9W-WR01-01CH Made in China. Ningbo Deyi Smart Home Co.Ltd A-02 27mm 24mm

FCC ID:2AZ9W-WR01-01CH Maximum Permissible Exposure (MPE) According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b) and KDB447498 D01 General RF Exposure Guidance v06. Limits for Maximum Permissible Exposure (MPE) MPE Calculation Method E (V/m) ＝ d GP**30 Power Density: Pd (W/m²) ＝ 377 2 E E ＝ Electric field (V/m) P ＝ Average RF output power (W) G ＝ EUT Antenna numeric gain (numeric) d ＝ Separation distance between radiator and human body (m) The formula can be changed to Pd ＝ 2 *377 **30 D GP From the EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained. Measurement Result Operation Frequency: 433.925MHz Antenna Type: PCB Antenna Antenna gain: -3dBi, R=20cm mW=10^(dBm/10) Transmit power Frequency (MHz) Max Output power (dBuV/m) EIRP power (dBm) EIRP power (mW) 433.925 82.22 -13.04 0.0033 EIRP=E-104.8+20log(D) Maximum Permissible Exposure: Channel Freq. (MHz) modulation EIRP power (dBm) EIRP power (mW) Tune-up power (dBm) Max tune-up power (dBm) Evaluation result (mW/cm2) Power density Limits (mW/cm2 ) 433.925 FSK -13.04 0.0033 -13±1 -12 0.000013 0.29 Conclusion: For the max result : 0.000013≤ 0.29 for Max Power Density, No RF exposure evaluation is required. Signature: Date: 2024-03-28 NAME AND TITLE (Please print or type): alex li/Manager COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen P.R. China.

Manufacturer's Name :Ningbo Deyi Smart Home Co., Ltd Gain:-3dBi

Report No.: S24012605408001 ` Page 1 of 29 RADIO TEST REPORT FCC ID: 2AZ9W-WR01-01CH Product: WR01-01CH Trade Mark: N/A Model No.: WR01-01CH Family Model: WR01-05CH Report No.: S24012605408001 Issue Date: Mar 06, 2024 Prepared for Ningbo Deyi Smart Home Co., Ltd 101-102, Building 2, No.341, Wuli Plate, Jiaochuan Street, Zhenhai District, Ningbo city, Zhejiang Province, China Prepared by Shenzhen NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen 518126 P.R. China Tel. 400-800-6106, 0755-2320 0050, 0755-2320 0090 Website: http://www.ntek.org.cn Report No.: S24012605408001 ` Page 2 of 29 Table of Contents Page 1. TEST RESULT CERTIFICATION 4 2. SUMMARY OF TEST RESULTS 5 3.FACILITIES AND ACCREDITATIONS 6 3.1 FACILITIES 6 3.2 LABORATORY ACCREDITATIONS AND LISTINGS 6 3.3 MEASUREMENT UNCERTAINTY 6 4.GENERAL DESCRIPTION OF EUT 7 5. DESCRIPTION OF TEST MODES 9 6.SETUP OF EQUIPMENT UNDER TEST 10 6.1BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM 10 6.2 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 11 6.3EQUIPMENTS LIST FOR ALL TEST ITEMS 12 7.ANTENNA REQUIREMENT 14 7.1 STANDARD REQUIREMENT 14 7.2 EUT ANTENNA 14 8. CONDUCTED EMISSION MEASUREMENT 15 8.1 APPLICABLE STANDARD 15 8.2 CONFORMANCE LIMIT 15 8.3 MEASURING INSTRUMENTS 15 8.4 TEST CONFIGURATION 15 8.5TEST PROCEDURE 15 8.6TEST RESULTS 16 9. RADIATED EMISSION MEASUREMENT 17 9.1APPLICABLE STANDARD 17 9.2RADIATED EMISSION LIMITS( FCC 15.209 ) 17 9.3 TEST PROCEDURE 19 9.4 TEST SETUP 21 9.5 TEST RESULTS 22 10. BANDWIDTH TEST 27 10.1 TEST PROCEDURE 27 10.2 DEVIATION FROM STANDARD 27 10.3 TEST SETUP 27 Report No.: S24012605408001 ` Page 3 of 29 Table of Contents Page 10.4 TEST RESULTS 28 11. TRANSMITTER TIMEOUT 29 11.1 REQUIREMENTS 29 Report No.: S24012605408001 ` Page 4 of 29 1. TEST RESULT CERTIFICATION Applicant’s name ......................... : Ningbo Deyi Smart Home Co., Ltd Address ....................................... : 101-102, Building 2, No.341, Wuli Plate, Jiaochuan Street, Zhenhai District, Ningbo city, Zhejiang Province, China Manufacturer's Name .................. : Ningbo Deyi Smart Home Co., Ltd Address ....................................... : 101-102, Building 2, No.341, Wuli Plate, Jiaochuan Street, Zhenhai District, Ningbo city, Zhejiang Province, China Product description Product name .............................. : WR01-01CH Trademark ................................. : N/A Model and/or type reference ..... : WR01-01CH Family Model ............................... : WR01-05CH Test Sample Number ................. : S240126054009 Date of Test .................................... : Jan 26, 2024 ~ Mar 06, 2024 Measurement Procedure Used: APPLICABLE STANDARDS APPLICABLE STANDARD/TEST PROCEDURE TEST RESULT FCC 47 CFR Part 15, Subpart C ANSI C63.10-2013 Complied This device described above has been tested by Shenzhen NTEK Testing Technology Co., Ltd., and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of Shenzhen NTEK Testing Technology Co., Ltd., this document may be altered or revised by Shenzhen NTEK Testing Technology Co., Ltd., personnel only, and shall be noted in the revision of the document. The test results of this report relate only to the tested sample identified in this report. Prepared By : Reviewed By : Approved By : Mukzi Lee (Project Engineer) Aaron Cheng (Supervisor) Alex Li (Manager) Report No.: S24012605408001 ` Page 5 of 29 2. SUMMARY OF TEST RESULTS FCC Part15 (15.231), Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission N/A 15.203 Antenna Requirement Pass 15.231(b) 15.209 15.205 Radiated Spurious Emission Pass 15.231(c) Occupied Bandwidth Pass 15.231(a)(1) Transmitter Timeout Pass NOTE: (1) ” N/A” denotes test is not applicable in this Test Report. (2) The EUT is using a new battery Report No.: S24012605408001 ` Page 6 of 29 3.FACILITIES AND ACCREDITATIONS 3.1 FACILITIES All measurement facilities used to collect the measurement data are located at 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street, Bao’an District, Shenzhen 518126 P.R. China The sites are constructed in conformance with the requirements of ANSI C63.7, ANSI C63.10 and CISPR Publication 22. 3.2 LABORATORY ACCREDITATIONS AND LISTINGS Site Description CNAS-Lab. : The Certificate Registration Number is L5516. IC-Registration The Certificate Registration Number is 9270A. CABidentifier:CN0074 FCC- Accredited Test Firm Registration Number:463705. Designation Number: CN1184 A2LA-Lab. The Certificate Registration Number is 4298.01 Name of Firm : ShenzhenNTEK Testing Technology Co., Ltd. Site Location : 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street, Bao’an District, Shenzhen 518126 P.R. China. 3.3 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y±U, where expended uncertainty U is based on astandard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95%. No. Item Uncertainty 1 Conducted Emission Test ±2.80dB 2 RF power,conducted ±0.16dB 3 Spurious emissions,conducted ±0.21dB 4 All emissions,radiated(30MHz~1GHz) ±2.64dB 5 All emissions,radiated(1GHz~6GHz) ±2.40dB 6 All emissions,radiated(＞6GHz) ±2.52dB 7 Temperature ±0.5°C 8 Humidity ±2% 9 All emissions, radiated(9KHz~30MHz) ±6dB Report No.: S24012605408001 ` Page 7 of 29 4.GENERAL DESCRIPTION OF EUT Equipment WR01-01CH Trade Name N/A Model Name WR01-01CH Family Model WR01-05CH Model Difference All the model are the same circuit and RF module, except the model names. Product Description The EUT is a WR01-01CH Operation Frequency: 433.925MHz Modulation Type: FSK Number Of Channel 1CH Antenna Designation: PCB Antenna Antenna Gain: -3dBi Based on the application, features, or specification exhibite…

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