FCC ID: 2A6RN-WT1000 2.4GHz Wi-Fi & BT IoT Module

WT1000 FCC ID: 2A6RN-WT 1000 IC: 28517-WT 1000 C S/N: XXXKXXKX Shenzhen Typhur Technology Co., Ltd. weep

Permissive Change Letter Shenzhen Typhur Technology Co., Ltd. Prince Plaza 2201-2206, 51 Taizi Road, Shuiwan Community, Zhaoshang Street, Nanshan District, Shenzhen, Guangdong, China Date: 08/22/2023 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 USA Innovation, Science and Economic Development Canada 3701 Carling Avenue (Building 94), Ottawa, Ontario, K2H 8S2 To Whom It May Concern:

Request for FCC Class II and IC Class IV Permissive Changes:

A. Class II Permissive Change request on:

FCC Model: WT1000 FCC ID: 2A6RN-WT1000 (grant date: 08/21/2023) B. Class IV Permissive Change request on:

IC Model: WT1000 IC: 28517-WT1000 (grant date: August 25, 2023) For the above indicated device and pursuant to CFR 2.1043 and RSP 100 section 8, Shenzhen Typhur Technology Co., Ltd. Hereby requests the evaluation of a Class II permissive change for FCC and Class IV permissive changes for IC as described below. Our device is going to be added an alternative antenna:

Single Modular Type Max. Gain IPEX WLAN 2.4GHz: 2.33dBi Bluetooth: 2.33dBi Single Modular added a new host with a new antenna Antenna Type Monopole Max. Gain WLAN 2.4GHz: 2.2dBi Bluetooth: 2.2dBi There is no other change in hardware or in existing RF relevant portion of the product. There is no any software/firmware that can be modified by end-user. The partial test item on the Radiated Spurious Emission, Conducted Emissions and fully SAR were performed. Sincerely, Applicant Signature Printed Name: Wilson Huang Title: Certification Engineer Email: wilson.huang@typhur.com Page 1 of 1

Standard Form Sample Request for Confidentiality Letter Shenzhen Typhur Technology Co., Ltd. Date: 07/05/2023 Subject: Confidentiality Request for FCC ID: 2A6RN-WT1000 and IC: 28517-WT1000 Pursuant to FCC 47 CRF 0.457(d) and 0.459 and IC RSP-100, Section 10, the applicant requests that a part of the subject FCC/IC application be held confidential. Type of Confidentiality Requested Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Permanent n/a Permanent Permanent Permanent Permanent Permanent Permanent Permanent Exhibit Block Diagrams External Photo Internal Photos ***

Operation Description/Theory of Operation Schematics Test Setup***

Tune-Up Procedure Users Manual***

Part List/ Antenna Gain Information Datasheet Shenzhen Typhur Technology Co., Ltd. has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality:

The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. (*** PAG only) Short-Term Confidentiality:

The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 180 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify TUV Rheinland in the event information regarding the product or the product is made available to the public. TUV Rheinland will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705. Sincerely, Applicant Signature Printed Name: Wilson Huang Title: Certification Engineer Email: wilson.huang@typhur.com MS-0044715 Page 1 of 1 Revision 0

Typhur Inc. U.S. Agent Letter of Attestation To:

Federal Communications Commission Date: 07/05/2023 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Attestation Statement Part 2.911(d)(7) filing FCC ID: 2A6RN-WT1000 Shenzhen Typhur Technology Co., Ltd. (the applicant) certifies that, as of the date of the filing of the application, Typhur Inc. (the agent) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts 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. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. Typhur Inc. (the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. APPLICANT Company Name: Shenzhen Typhur Technology Co., Ltd. Contact Person: Wilson Huang Address: Prince Plaza 2201-2206, 51 Taizi Road, Shuiwan Community, Zhaoshang Street, Nanshan District, Shenzhen, Guangdong, China Email: wilson.huang@typhur.com FRN: 0032366403 U.S. Agent Company Name:

Typhur Inc. Contact Person:

Allen Fung Address:

2890 Zanker Rd, Suite 120, San Jose, CA 95134 Email:

allen.f@typhur.com Note1:

Typhur Inc. does not do any other business with the FCC. Note2: This letter is to confirm that we have accepted the responsibility to act as US Agent on behalf of Shenzhen Typhur Technology Co., Ltd (the applicant) for the above Grantee code. Sincerely yours, Company Name Contact Person Signature The Applicant Shenzhen Typhur Technology Co., Ltd. Wilson Huang The Agent Typhur Inc. Allen Fung

ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD. Suite 204, Block 2, 690 Bibo Road, Zhang Jiang Hi-Tech Park, Shanghai, 201203, China Date: 07/05/2023 FCC Laboratory 7435 Oakland Mills Rd Columbia MD 21046 Certification and Engineering Bureau ISED Canada 3701 Carling Avenue (Building 94) Ottawa, Ontario K2H 8S2 To whom it may concern, The letter grants authorization for representative of Shenzhen Typhur Technology Co., Ltd. to apply the FCC and IC for a change in identification. This authorization applies to ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD. FCC ID: 2AC7Z-ESPS3WROOM1U, granted on 03/31/2022. IC: 21098-ESPS3WROOMU, PMN: ESP32-S3-WROOM-1U, HVIN: ESP32-S3-WROOM-1U, FVIN: v1.1.3.4, granted on 04/11/2022. The equipment is electrically identical. We are aware that Shenzhen Typhur Technology Co., Ltd. intends to market the above referenced product under FCC ID: 2A6RN-WT1000, IC: 28517-

WT1000, PMN: WT1000, HVIN: WT1000, FVIN: v1.1.3.4. The only change being the applicant, label and FCC ID on the device. And add new model:

WT1000 for marketing purpose. The original test results, technical information and relevant documents continue to be representative of and applicable to the change ID equipment. Should there be any question, please feel free to contact us. Sincerely yours, Applicant Signature Printed Name: Mia Zhou Title:Certification Engineer Email: zhoumiaomiao@espressif.com

Shenzhen Typhur Technology Co., Ltd. Prince Plaza 2201-2206, 51 Taizi Road, Shuiwan Community, Zhaoshang Street, Nanshan District, Shenzhen, Guangdong, China Date: 07/05/2023 FCC Laboratory 7435 Oakland Mills Rd Columbia MD 21046 Certification and Engineering Bureau ISED Canada 3701 Carling Avenue (Building 94) Ottawa, Ontario K2H 8S2 To whom it may concern, This application for Change of Identification request a new FCC ID and IC ID as stipulated in 47 CFR 2.933 (b) and RSP-100 for presently authorized equipment. This application by Shenzhen Typhur Technology Co., Ltd. will establish a new FCC ID: 2A6RN-

WT1000, a new IC: 28517-WT1000, PMN: WT1000, HVIN: WT1000, FVIN: v1.1.3.4 for the purpose of marketing. The original grant to ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD. FCC ID: 2AC7Z-ESPS3WROOM1U, granted on 03/31/2022. IC: 21098-ESPS3WROOMU, PMN: ESP32-S3-WROOM-1U, HVIN: ESP32-S3-WROOM-1U, FVIN: v1.1.3.4, granted on 04/11/2022. Will remain in effect. Per 47 CFR 2.933(b)/RSP-100 1. The original identification is FCC ID: 2AC7Z-ESPS3WROOM1U and IC: 21098-ESPS3WROOMU 2. The original grant date is 03/31/2022 for FCC ID and date is 04/11/2022 for IC ID. 3. The equipment is electrically identical. Only the trade name and FCC ID number are different. 4. The original test results continue to be representative of and applicable to the equipment bearing the changed identification. 5. Exterior photographs are included in this application. The following files are electronically submitted as attachments:

Cover Letter External Photos FCC ID label format and location User Manual Should there be any question, please feel free to contact us. Sincerely, Applicant Signature Printed Name: Wilson Huang Title: Certification Engineer Email: wilson.huang@typhur.com

Applicant: Shenzhen Typhur Technology Co., Ltd. FCC ID: 2A6RN-WT1000 Section 15.212 Modular transmitters IC: 28517-WT1000 Section 8 of RSP-100 Request for Modular Approval Request for Limited Modular Approval Requirements Device Conditions Comply (Y/N) Single Modular Approval Requirements 1 2 3 4 FCC The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located external to the shielded radio elements. IC The radio elements shall have the radio frequency circuitry shielded. Physical/discrete and tuning capacitors may be located external to the shield, but shall be on the module assembly. FCC The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with part 15 requirements under conditions of excessive data rates or over-modulation. IC If the module has modulation/data input(s), they shall be buffered in order to ensure that the module will comply with the requirements set out in the applicable Radio Standards Specification

(RSS) under conditions of excessive data rates or over-modulation. FCC The modular transmitter must have its own power supply regulation. IC The module shall have its own power supply regulation on the module itself. This is to ensure that the module will comply with the requirements set out in the applicable standard regardless of the design of the power supplying circuitry in the host product that houses the module. FCC The modular transmitter must comply with the antenna and transmission system requirements of 15.203, 15.204(b) and 15.204(c). The antenna must either be permanently attached or employ a unique antenna coupler (at all connections between the module and the antenna, including the cable). The professional installation provision of 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph (b) of this section. IC The module shall comply with the provisions for external power amplifiers and antennas detailed in the applicable RSS. The equipment certification application shall contain:

a detailed description of the configuration of highest antenna gain for each type of transmitting antenna for licence-exempt modules;

the maximum transmitting antenna gain for licence modules; and a detailed description of the configuration of lowest antenna gain for each type of receiving antenna for Dynamic Frequency Selection (DFS) modules with removable antenna(s). The radio portion of this module is shielded, please see exhibition external photos. Y The module has buffer modulation/data inputs. Y The module has its own power supply regulation. Please see the circuit diagram.pdf. The requirements of antenna connector and spurious emissions have been fulfilled. Please refer to the test report exhibition. Y Y FCC The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing for compliance with part 15 requirements. Unless the transmitter module will be battery powered, it must comply with the AC line conducted requirements found in 15.207. AC or DC power lines and data input/output lines connected to the module must not contain ferrites, unless they will be marketed with the module (see 15.27(a)). The length of these lines shall be the length typical of actual use or, if that length is unknown, at least 10 centimeters to insure that there is no coupling between the case of the module and supporting equipment. Any accessories, peripherals, or support equipment connected to the module during testing shall be unmodified and commercially available (see 15.31(i)). IC The module shall be tested for compliance with the applicable standard in a stand-alone configuration (i.e. the module shall not be inside another product during testing). FCC The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. IC The ISED certification label of a module shall be clearly visible at all times when installed in the host product; otherwise, the host product must be labelled to display the ISED certification number for the module, preceded by the word "contains"

or similar wording expressing the same meaning, as follows:

Contains IC: XXXXXX-YYYYYYYYYYY The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. FCC Radio frequency devices operating under the provisions of this part are subject to the radio frequency radiation exposure requirements specified in 1.1307(b), 1.1310, 2.1091, and 2.1093 of this chapter, as appropriate. Applications for equipment authorization of modular transmitters under this section must contain a statement confirming compliance with these requirements. The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. Technical information showing the basis for this statement must be submitted to the Commission upon request. IC The module complies or will comply with applicable RSS-102 exposure requirements in its 5 6 7 8 Please refer to the Setup photo exhibition for the stand-alone test configuration. In the exhibition OEM manual, there are Instructions given to the OEM on how to label the end product. The required FCC rule has been fulfilled and all the instructions for maintaining compliance have been clearly stated in the User Manual. Y Y Y Please refer the Maximum Permissible Exposure Information. Y intended configuration/integration in a host. Sincerely, Applicant Signature Printed Name: Wilson Huang Title: Certification Engineer Email: wilson.huang@typhur.com