FCC ID: 2A3SYHAF001 Air circulator fan

SSPPEECCIIFFIICCAATTIIOON N SHEET FOR APPROVAL RevisionRA1 7inch Circulating Fan CUSTOMER() Hesung Innovation Limited CS P/N() PART NAME() FREQUENCY() ZTX NO.() DATE() 2400~2500MHz WIFI Antenna K.00000029 2023-01-09 TD17 CUSTOMER QA ME RF CHECKED CHECKED CHECKED MANAGER CHECKED Remark() Sign() Shenzhen ZTX Communication Technology Co., Ltd MANAGER CHECKED MANAGER CHECKED ME RF CHECKED CHECKED LISTER Lai Ningping Wang Pei 34 () 518000 Address: No.34, Shilong Avenue, Shiyan Town, Baoan District, Shenzhen, (Tengda Industrial Park) 518000 0755-27588045 Fax: 0755-27588045 http://www.chinaztx.com http://www.chinaztx.com 0755-27588320 Tel.: 0755-27588320 CUS P/N :7inch Circulating Fan WIFIAntenna ApplicationDate:Jan,09,2023 ZTX P/N :7inch Circulating Fan WIFIAntenna Editor:

ANTENNA SPECIFICATION Rev: R:A1 Page 1 of 8 Edition Date A1 2023-01-09 Revision history State The first edition CUS P/N :7inch Circulating Fan WIFIAntenna ApplicationDate:Jan,09,2023 ZTX P/N :7inch Circulating Fan WIFIAntenna Editor:

ANTENNA SPECIFICATION Rev: R:A1 Page 2 of 8 Index Revision history lndex Mechanical Specification 1-1 Mechanical Specification(WIFI Antenna

) Test equipment Test Results Surmmary 3-1 OTA Test 3-2 Transmit Test 3-3 VSWR 3-4 No-source test data 3-5 Environment treatment 3-6 2D/3D Radiation Pattern Results Environment Characteristic The packing way 1 2 3 4 5 1 2 3 3 4 5 5 5 5 6 6 7 8 8 CUS P/N :7inch Circulating Fan WIFIAntenna ApplicationDate:Jan,09,2023 ZTX P/N :7inch Circulating Fan WIFIAntenna Editor:

ANTENNA SPECIFICATION Rev: R:A1 Page 3 of 8 1. Mechanical Specification 1-1 Mechanical ConfigurationWIFI Antenna CUS P/N :7inch Circulating Fan WIFIAntenna ApplicationDate:Jan,09,2023 ZTX P/N :7inch Circulating Fan WIFIAntenna Editor:

ANTENNA SPECIFICATION Rev: R:A1 Page 4 of 8 2. Test equipment CUS P/N :7inch Circulating Fan WIFIAntenna ApplicationDate:Jan,09,2023 ZTX P/N :7inch Circulating Fan WIFIAntenna Editor:

ANTENNA SPECIFICATION Rev: R:A1 Page 5 of 8 3.Test Results Surmmary 3-1 OTA Test 3-2 Transmit Test 3-3 VSWR CUS P/N :7inch Circulating Fan WIFIAntenna ApplicationDate:Jan,09,2023 ZTX P/N :7inch Circulating Fan WIFIAntenna Editor:

ANTENNA SPECIFICATION Rev: R:A1 Page 6 of 8 3-4 No-source test data 3-5 Environment treatment CUS P/N :7inch Circulating Fan WIFIAntenna ApplicationDate:Jan,09,2023 ZTX P/N :7inch Circulating Fan WIFIAntenna Editor:

ANTENNA SPECIFICATION Rev: R:A1 Page 7 of 8 3-6 2D/3D Radiation Pattern Results CUS P/N :7inch Circulating Fan WIFIAntenna ApplicationDate:Jan,09,2023 ZTX P/N :7inch Circulating Fan WIFIAntenna Editor:

ANTENNA SPECIFICATION Rev: R:A1 Page 8 of 8 4.Environment Characteristic NO. ITEM TEST CONDITION SPECIFICATION 4-1 High Temperature/Humidity 1.Temperature: +70 2 No material deformation is Storage Test(non operating) 2.Humidity: 90~95%RH allowed. 3.Time: 48hr s 2 4-

Low Temperature/Humidity 1.Temperature: -302 The VSWR, Gain, Radiation Storage Test(non operating) 2.Humidity: 0%RH Pattern must be met 3.Time:48hr s specifications after these test.

Date: October 27, 2023 Hesung Innovation Limited Product Model Number:DR-HAF001SDTAF01S, DBAF01S,DCAF01S,DWAF01S, DOAF01S,WDR-AF01S FCC ID2A3SYHAF001 To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following:

Testing Approval applications and procedures We declare that ORGANIZATION. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by ORGANIZATION. on our behalf shall have the same effect as acts of our own. By: Bera Yang Contact Listed on FCC Wesbite Title: Poject Manager Email: bera.yang@hesung.com Telephone: +86-13826971634 On behalf of: Hesung Innovation Limited Effective Date: April 2, 2020 Revision Date:

QSF 7.6.4-8 Agent Authorization Letter Template Revision: 0 Page 1 of 1

Hesung Innovation Limited Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2A3SYHAF001 To Whom It May Concern, Date: October 27, 2023 Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name:Bera Yang Title:Poject Manager

Hesung Innovation Limited Model Confirmation Letter We, Hesung Innovation Limited certify the product:

Air circulator fan Model No.: DR-HAF001SDTAF01S, DBAF01S,DCAF01S,DWAF01S, DOAF01S,WDR-AF01S Their electrical circuit design, layout, components used and internal wiring are identical, Only the model NO. are different. Signiture:

Grantee Contact: Bera Yang Company Name: Hesung Innovation Limited Date: October 27, 2023

Hesung Innovation Limited AddressRoom 803, Chevalier House, 45-51 Chatham Road South, Tsim Sha Tsui , Kowloon, HongKong FRN: 0031685647 Date: October 27, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(7) Filing SUBJECT: FCC Application for FCC ID: 2A3SYHAF001 Hesung Innovation Limited certifies that, as of the date of the filing of the application, Cleveland International Trade Agency. is our designated U.S. agent for service of process for the above referenced FCC ID. Hesung Innovation Limited 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. Cleveland International Trade Agency 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: Cleveland International Trade Agency Address: 4033 ST Clair Ave, Cleveland, OH 44103, USA FRN: 0033401837 Contact Person: Becky Deng Tel.: 216-600-0606 Email: Georgewu7012@gmail.com Sincerely, Signed on behalf of Hesung Innovation Limited Signed on behalf of Cleveland International Trade Agency signature Name: Bera Yang signature Name: Becky Deng Title: Poject Manager Title: Manager Date: 2023-10-27 Date:2023-10-27

Hesung Innovation Limited Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: October 27, 2023 FCC ID: 2A3SYHAF001 Ref. #1: Attestation Statements Part 2.911(d)(5)(i) Filing Hesung Innovation Limited 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. Ref. #2: Attestation Statements Part 2.911(d)(5)(ii) Filing Hesung Innovation Limited 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. Applicant: Hesung Innovation Limited Address: Room 803, Chevalier House, 45-51 Chatham Road South, Tsim Sha Tsui , Kowloon, HongKong Contact Person: Bera Yang Tel.: +86-13826971634 Email: bera.yang@hesung.com Sincerely, Signature: