FCC ID: 2A3NOT230203 Guest Paging System

Label Location Confirm the use of real appearance photos as references Label size: L: 6.03 cm*W: 4.03 cm

Attestation Statement. Old Code: C5266091 24 New Code: 00015544 Ed.3 Change reason: FRN is added to the Applicant information section. ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD TO:

Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules for covered telecommunications equipment and video surveillance equipment produced by entities identified on the Commissions Covered List1, 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) that prohibit equipment authorization Room 2101, 21st Floor of B Block, Silicon Valley Plaza,82 Culture Street,Jinshui 2A3NO 2A3NOT230203 0031620636 Applicant Company name: ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Grantee code:

FCC ID:

FRN:

Contact Name: Weidong Shen Address:

District Telephone No: 63262209 Fax No:

Email:

i. [email protected] ii.

[ZHENGZHOU YSAIR TECHNOLOGY 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.

[ZHENGZHOU YSAIR TECHNOLOGY 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. The applicant must sign this certification.

[ZHENGZHOU YSAIR TECHNOLOGY 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 as an entity producing covered equipment . Date: 2026/09/03 Applicants Name: Weidong Shen Title: General Manager Signature 1 The Commissions Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commissions 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 1/1

ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Subject: Request for Confidentiality FCC ID: 2A3NOT230203 To Whom It May Concern, C5266091_X10_Ed.2 Date: 2026-09-04 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 ID Label/Location Attestation Statement External Photos Block Diagram Schematics Test Report Test Setup Photos Users Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) SDR Software / Security Info Long-Term Confidentiality Short-Term Confidentiality NOTE 2 No No No No No NOTE 1 NOTE 1 No No No No No No No No 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. 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. 1/1 C5266091_X10_Ed.2 Sincerely, Name: Weidong Shen Title: General Manager 2026.09.04 1/1

ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Device Company name Grantee code FCC ID FRN Contact name Address Guest Paging System ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD 2A3NO 2A3NOT230203 0031620636 Weidong Shen Room 2101, 21st Floor of B Block, Silicon Valley Plaza,82 Culture Street,Jinshui District Telephone number 63262209 E-mail [email protected] Chipset/module information FT60F122A-RB, CMT2110A-ESR Operating System (if applicable) Storage Capacity (hard drive or other permanent memory storage, if applicable) N/A N/A Item 1. The device is able to install software/program installation?

Yes, go to Item 2. No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky cybersecurity or anti-virus software. Item 2. Technical Requirements for Kaspersky Cybersecurity Software:

1 General Requirements (For all Devices) Yes / No or N/A Comments Internet connection for activation and updates (For all Operating Systems) Elija un elemento. Code 00018768 Ed. 1

General Requirements (For Windows Devices) Yes / No or N/A Comments 1 Storage: 1500 MB free space on the hard drive 2 Operating System:

Microsoft Windows 8, 8.1, 10 & 11 Home / Pro / Enterprise Microsoft Windows 7 Starter / Home Basic & Premium / Professional /

Ultimate SP1 or higher 3 Processor: 1 GHz or higher (x86 or x64) 4 Memory (RAM)1 GB (32-bit) or 2 GB (64-bit) 5 Screen Resolution: Minimum resolution of 1024 x 768 Elija un elemento. Elija un elemento. Elija un elemento. Elija un elemento. Elija un elemento.

General Requirements (For macOS devices) Yes / No or N/A Comments 1 Operating System macOS 13 14 2 Memory (RAM)4 GB 3 Storage: 3455 MB free space on the hard drive Elija un elemento. Elija un elemento. Elija un elemento.

General Requirements (For Android Devices) Yes / No or N/A Comments 1 Storage: 150 MB free space 2 Operating System: Android 10 14 3 Screen Resolution: Minimum resolution of 320 x 480 Elija un elemento. Elija un elemento. Elija un elemento. 2

General Requirements (for iOS devices) Yes / No or N/A Comments 1 Storage: 150 MB free space 2 Operating System: iOS 17 Elija un elemento. Elija un elemento.

General Requirements (For Linux system) Yes / No or N/A Comments 1 Hard drive: 1 GB of free space N/A 2 CPU: Intel Pentium 1 GHz or higher 3 RAM: 1 GB 4 Minimum software requirements:

AlmaLinux OS 8 or later;

AlterOS 7.5 or later;

Astra Linux Common Edition 2.12 or later;

CentOS 6.7 or later;

Debian GNU/Linux 10.0 or later;

EulerOS 2.0 or later;

Oracle Linux 7.3 or later ;

Red Hat Enterprise Linux 6.7 or later ;

Rocky Linux 8.5 or later ;

SUSE Linux Enterprise Server 12.5 or later;

Ubuntu 12.04 or later ;

Uncom OS Home / Business / Education / Enterprise 2.2 or later;

ALT Linux Workstaton / Workstation K / Server / Education 8 or later;

ROSA Linux Workstation / Server 12 or later ;

RED OS 7.3 and later ;

3 After reviewed the technical requirements, is the device capable of supporting the installation of Kaspersky software?

Yes, go to Item 3. No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky software Item 3. Connectivity Capabilities:

# Physical Interface Purpose Justification1 1

# Wireless Interface Purpose Justification1 1 After the review of this items, the device:

Cannot support installation of any cybersecurity or anti-virus software on the covered list. Potentially can operate with any cybersecurity or anti-virus software on the covered list additional third-

party proof is provided to demonstrate compliance with requirements as of 2.911(d)5(i),(ii) Proof of Compliance with Covered List Software Requirements of this document applies Signature:

Name: Weidong Shen Date:2026-09-03 1 The justification field is used to justify why the software cannot be received through that interface. Check the annex for more indications. 4

C5266091_X8_Ed.1 Letter of Authorization ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Company: ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Address: Room 2101, 21st Floor of B Block, Silicon Valley Plaza,82 Culture Street,Jinshui District Product Name: Guest Paging System Model Number: TD175P, TD175S FCC Identifier: 2A3NOT230203 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: Weidong Shen Date: 2026.09.03 Title: General Manager Signature of applicant:

1/1

ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Product Similarity Declaration Product name: Guest Paging System Model name: TD175P, TD175S FCC ID: 2A3NOT230203 We (ZHENGZHOU YSAIR TECHNOLOGY 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 the model name. Signature:

Name: Weidong Shen Title: General Manager 2026/9/4

File FCC ID: 2A3NOT230203 Please upload an exhibit that explains how does the TCB verify the new agent information:

1- Is the address of the agent a valid physical US mailing address (not a US post office box, not a virtual mailbox, not P.O. Boxes, not a vacant lot, not a public building, etc.) We have checked if the address exists in a real and potential building (Google maps) + official US register, after this verification and the evidence below we can guarantee the following:

not a US post office box not a virtual mailbox not P.O. Boxes not a vacant lot not a public building(note) We checked the FCC FRN Search based on the information provided by the grantee. On the official register from :

TCB CALL pgina 1 In google:

TCB CALL pgina 2 CONCLUSION by TCB: The ASOP defined and provided by grantee is VALID and confirmed. Therefore the exhibit "U.S. Agent TD175P " included in the file is ok. 2- Is the agent physically located at that valid US address such that the agent can be legally served at that address?

Yes , check above 3- Has the listed agent clearly agreed in writing to serve as the agent for the grantee at that address?

Yes, it is included in the exhibit "U.S. Agent TD175P "

TCB CALL pgina 3

ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 U.S. Agent Designatio n 6/04/26 ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought

(FCC ID: 2A3NOT230203):

Name and company of U.S. agent: RETEVIS INC Physical U.S. address of agent: 1733 E BROOKPORT ST COVINA, CA 91724 United States FRN of U.S. agent: 0033657701 Email address of U.S. agent: [email protected] Telephone No: +1626362259 4 RETEVIS INC acknowledges their obligation to accept service of process on behalf of ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD with the FRN 0031620636 accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature

[Name] Weidong Shen

[Title]General Manager

[Company]ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD 5 0 V

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_ 8 4 ZHENGZHOU YSAIR TECHNOLOGY CO.,LTD Signature

[Name of U.S. agent]LIUYE LI

[Title of U.S. agent]Director

[Company of U.S. agent]RETEVIS INC