FCC ID: 2A3SYPF004 Air circulator fan

DREO Smart Pedestal Air Circulator PolyFan 704S Model No.: DR-HPFOO4S Working Voltage: 24V ===

Rated Power Input: 48W Power Adapter: Rated Input 120V~ 60Hz 124 [PC Output 24V == 2A FCC ID: 2A3SYPFO04 Date Code: 2023/10 MADE IN CHINA 4l) Us This device complies with Part 15 of the FCC tusre Rules. Operation is subject to the following two Intertek conditions: (1) this device may not cause harmful 5018396 interference, and (2) this device must accept any ete oO interference received, including interference that . may cause undesired operation.

SPECIFICATION SPECIFICATION SHEET FOR APPROVAL RevisionRA0 CUSTOMER CS P/N PART NAME FREQUENCY ZTX NO. DATE Hesung Innovation Limited DR-HPF004S 2.4G Antenna 2.4~2.5GHz 2.00000702 2023-11-29 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 Zhengwei Chen Jinping Gu Address: No.34, Shilong Avenue, Shiyan Town, Baoan District, Shenzhen, (Tengda Industrial Park) 518000 Tel0755-27588320 Fax0755-27588045 http://www.chinaztx.com CUS P/N :DR-HPF004S 2.4G Antenna ZTX P/N :DR-HPF004S 2.4G Antenna ApplicationDate:Nov,29,2023 Editor:

Rev: R:A0 Page 1 of 7 ANTENNA SPECIFICATION Edition Date A0 2023-11-29 Revision history state First edition CUS P/N :DR-HPF004S 2.4G Antenna ZTX P/N :DR-HPF004S 2.4G Antenna ApplicationDate:Nov,29,2023 Editor:

Rev: R:A0 Page 2 of 7 ANTENNA SPECIFICATION 1 2 3 Index Revision history lndex Mechanical Specification 1-1 Mechanical Specification(2.4G Antenna) Test equipment Test Results Surmmary 3-1 Active Test 3-2 VSWR 3-3 No-source test data 3-4 3-5 Environment treatment 2D/3D Radiation Pattern Results 1 2 3 3 4 5 5 5 6 7 7 CUS P/N :DR-HPF004S 2.4G Antenna ZTX P/N :DR-HPF004S 2.4G Antenna ApplicationDate:Nov,29,2023 Editor:

Rev: R:A0 Page 3 of 7 ANTENNA SPECIFICATION 1. Mechanical Specification 1-1 Mechanical Configuration2.4G Antenna CUS P/N :DR-HPF004S 2.4G Antenna ZTX P/N :DR-HPF004S 2.4G Antenna ApplicationDate:Nov,29,2023 Editor:

Rev: R:A0 Page 4 of 7 ANTENNA SPECIFICATION 2. Test equipment CUS P/N :DR-HPF004S 2.4G Antenna ZTX P/N :DR-HPF004S 2.4G Antenna ApplicationDate:Nov,29,2023 Editor:

Rev: R:A0 Page 5 of 7 ANTENNA SPECIFICATION 3.Test Results Surmmary 3-1 Active Test 3-2 VSWR CUS P/N :DR-HPF004S 2.4G Antenna ZTX P/N :DR-HPF004S 2.4G Antenna ApplicationDate:Nov,29,2023 Editor:

Rev: R:A0 Page 6 of 7 ANTENNA SPECIFICATION 3-3 No-source test data CUS P/N :DR-HPF004S 2.4G Antenna ZTX P/N :DR-HPF004S 2.4G Antenna ApplicationDate:Nov,29,2023 Editor:

Rev: R:A0 Page 7 of 7 ANTENNA SPECIFICATION 3-5 Environment treatment CUS P/N :DR-HTF010S WIFI Antenna ZTX P/N :DR-HTF010S WIFI Antenna Application Date:Nov,09,2023 Editor:

Rev: R:A0 Page 7 of 9 ANTENNA SPECIFICATION 3-4 2D/3D Radiation Pattern Results CUS P/N :DR-HTF010S WIFI Antenna ZTX P/N :DR-HTF010S WIFI Antenna Application Date:Nov,09,2023 Editor:

Rev: R:A0 Page 8 of 9 ANTENNA SPECIFICATION

Date: January 12, 2024 Hesung Innovation Limited Product Model Number:DR-HPF004S, WDR-PF004S, DCPF04S, DBPF04S, DTPF04S, DWPF04S FCC ID2A3SYPF004 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 Model Confirmation Letter We, Hesung Innovation Limited certify the product:

Air circulator fan Model No.:DR-HPF004S, WDR-PF004S, DCPF04S, DBPF04S, DTPF04S, DWPF04S 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: January 12, 2024

Hesung Innovation Limited Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2A3SYPF004 To Whom It May Concern, Date: January 12, 2024 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 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: January 12, 2024 FCC ID: 2A3SYPF004 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:

Hesung Innovation Limited AddressRoom 803, Chevalier House, 45-51 Chatham Road South, Tsim Sha Tsui , Kowloon, HongKong FRN: 0031685647 Date: January 12, 2024 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: 2A3SYPF004 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 eferenced 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: 2024-1-12 Date:2024-1-12