FCC ID: 2AC23-W2HM2001 WIFI Module

Hui Zhou Gaoshengda Technology Co.,LTD Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AC23-W2HM2001 Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below:

Exhibit Type File Name

(Block Diagram, Schematics, Operational (Block Diagram.pdf, Schematics.pdf, Description) Operational Description.pdf) The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commissions public notice, we also request temporary confidential treatment of information accompanying this application as outlined below:

Exhibit Type File Name Sincerely, Signature: Hai Gwan printed name: Hui Guan Rev 11/20/07

Hui Zhou Gaoshengda Technology Co.,LTD FCC ID: 2AC23-W2HM2001 MODULAR APPROVAL LETTER Modular Approval Requirement Yes

(i) 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.

(ii) 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.

(iii) The modular transmitter must have its own power supply regulation.

(iv) 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.

(v) The modular transmitter must be tested in a stand-alone configuration

(vi) The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number.

(vii) 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.

(viii) The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. Signature; 7a 4aarl Printed name: Hui Guan H:\ 1 22 SCF E\ Modular Approval Letter---Timco.docx

Hui Zhou Gaoshengda Technology Co.,LTD Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: November 12, 2020 SUBJECT: FCC Application for (FCC ID: 2AC23-W2HM2001) To Whom It May Concern:

We, the undersigned, hereby authorize Mina Xu at Centre Testing International Group Co. Ltd / Building C, Hongwei Industrial Park Block 70, Bao'an District, Shenzhen, Chinaon our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Mina Xu at Centre Testing International Group Co., Ltd /

Building C, Hongwei Industrial Park Block 70, Bao'an District, Shenzhen, Chinaon our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, Signature: ai Guan printed name: Hui Guan HABE SCF SE\POA Letter.docx