2BGYX-TF01WindMaster Smart Tower Fan

Attestation Statements (July 12, 2024) TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for (FCC ID: 2BGYX-TF01 ) (Shenzhen Qichuang Intelligent Environment Technology Co.,LTD), the undersigned, hereby authorize (NEWENERGYER LIMITED) to act as our designated U.S. agent for service of process, (Shenzhen Qichuang Intelligent Environment Technology Co.,LTD) 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. (NEWENERGYER LIMITED) accepts the responsibility to act as designated U.S. agent for service of process, provides 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. Applicant Information： Company name: Shenzhen Qichuang Intelligent Environment Technology Co.,LTD Contact Name: Yan Xia Li Address: 20D Block A, South District, Lvjing Xiangsong Meilu Yuan, Xinniu Community, Minzhi Street, Longhua District, Shenzhen, China Telephone No: 13538214502 Email: [email protected] FRN: 0035553379 Signature [Yan Xia Li] U.S. Agent Information: Company Name: NEWENERGYER LIMITED Address: 1818 S Patton Ct, Denver, CO, 80219 Contact Name: CHUN LIU Telephone No: 213 289 5042 Email: [email protected] FRN: 0034665885 Signature [CHUN LIU]

(Shenzhen Qichuang Intelligent Environment Technology Co.,LTD) (July 12, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID: 2BGYX-TF01) [Shenzhen Qichuang Intelligent Environment 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. Sincerely, (Applicant signature) (Applicant printed name) Yan Xia Li (Shenzhen Qichuang Intelligent Environment Technology Co.,LTD) (July 12, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID: 2BGYX-TF01) [Shenzhen Qichuang Intelligent Environment 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. Sincerely, (Applicant signature) (Applicant printed name) Yan Xia Li

Shenzhen Qichuang Intelligent Environment Technology Co.,LTD (July 12, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature: Name: Yan Xia Li Title: Supply chain supervisor

Shenzhen Qichuang Intelligent Environment Technology Co.,LTD (July 12, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (WindMaster Smart Tower Fan / TF-01 / FCC ID: 2BGYX-TF01) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No required to be submitted with this application be permanently withheld from public review. 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. Please contact me if there is any information you may need. Sincerely, Signature: Name: Yan Xia Li Title: Supply chain supervisor

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: TF-01 External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 4

FCC ID LABEL: Label Location:

深圳市犀云科技有限公司 ShenzhenRinocloudTechnologyCo.,Ltd. InvertedFAntennaSpecification Summary RenFengP/NPrintedPCBantenna Frequencygain2.4GHz—2.5GHz WRITEDLicco MAXGain2.54dBi AzimuthBeamPatternOmni-directional Impedance50Ohm Manufacturer (companyname) ShenzhenRinocloudTechnologyCo.,Ltd. Address QianhaiComplexA201,QianwanRoad1,Qianhai Shenzhen-HongKongCooperationZone, Shenzhen,P.R.China AntennaPhoto&Length(mm)  TestModule TestDataandcurve Frequency (MHz) ReturnLossVSWR 2400-8.732.16 2450-11.761.71 2500-11.211.77 EfficiencyandGain Frea.(ZHz) Effi('l\)Gain(dBi) 2400 52.291.62 2410 52.171.71 2420 53.141.93 2430 54.161.98 2440 57.622.00 2450 59.642.17 2460 61.552.45 2470 60.642.38 2480 62.862.54 2490 59.852.30 2500 60.412.49

TEST REPORT Compiled by: Reviewed by: Approved by: Zhou Kui Arron Liu Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name: WindMaster Smart Tower Fan FCC ID: 2BGYX-TF01 Trademark: （Provirtec） Model Number: TF-01 Prepared For: Shenzhen Qichuang Intelligent Environment Technology Co.,LTD Address: 20D Block A, South District, Lvjing Xiangsong Meilu Yuan, Xinniu Community, Minzhi Street, Longhua District, Shenzhen, China Manufacturer: ZHONGSHAN SEEMAX ELECTRICAL APPLIANCE CO.,LTD Address: 4/F Building B, No.13 Dongrui Third Road, Shenglong,Xiaolan Town, Zhongshan City, Guangdong, China Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Jun. 11, 2024 Sample tested Date: Jun. 11, 2024 to Jun. 26, 2024 Issue Date: Jun. 26, 2024 Report No.: CTB240626007RFX Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2013 Test Results PASS Remark: This is WIFI-2.4GHz band radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240626007RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 52 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ............................................................ 4 2. TEST SUMMARY ..................................................... 5 3. MEASUREMENT UNCERTAINTY ....................................... 6 4. PRODUCT INFORMATION AND TEST SETUP ........................... 7 4.1 Product Information ..................................................... 7 4.2 Test Setup Configuration ................................................ 7 4.3 Support Equipment ..................................................... 7 4.4 Channel List ........................................................... 8 4.5 Test Mode ............................................................. 8 4.6 Test Environment ....................................................... 8 5. TEST FACILITY AND TEST INSTRUMENT USED ......................... 9 5.1 Test Facility ............................................................ 9 5.2 Test Instrument Used ................................................... 9 6. AC POWER LINE CONDUCTED EMISSION ............................. 11 6.1 Block Diagram Of Test Setup ........................................... 11 6.2 Limit ................................................................. 11 6.3 Test procedure ........................................................ 11 6.4 Test Result ........................................................... 13 7. RADIATED SPURIOUS EMISSION ..................................... 15 7.1 Block Diagram Of Test Setup ........................................... 15 7.2 Limit ................................................................. 15 7.3 Test procedure ........................................................ 16 7.4 Test Result ........................................................... 17 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS ............ 34 8.1 Block Diagram Of Test Setup ........................................... 34 8.2 Limit ................................................................. 34 8.3 Test procedure ........................................................ 34 8.4 Test Result ........................................................... 35 9. COUDUCTED OUTPUT POWER ....................................... 41 9.1 Block Diagram Of Test Setup ........................................... 41 9.2 Limit ................................................................. 41 9.3 Test procedure ........................................................ 41 9.4 Test Result ........................................................... 41 10. 6DB OCCUPIED BANDWIDTH......................................... 42 10.1 Block Diagram Of Test Setup .......................................... 42 10.2 Limit ................................................................ 42 10.3 Test procedure ....................................................... 42 10.4 Test Result .......................................................... 42 11. POWER SPECTRAL DENSITY ........................................ 46 11.1 Block Diagram Of Test Setup .......................................... 46 11.2 Limit ................................................................ 46 Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240626007RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 52 11.3 Test procedure ....................................................... 46 11.4 Test Result .......................................................... 46 12. ANTENNA REQUIREMENT ........................................... 50 13. EUT TEST SETUP PHOTOGRAPHS ................................... 51 (Note: N/A means not applicable) Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240626007RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 52 1. VERSION Report No. Issue Date Description Approved CTB240626007RFX Jun. 26, 2024 Original Valid Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240626007RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 5 of 52 2. TEST SUMMARY The Product has been tested according to the following specifications: Test Item Test Requirement Test method Result AC Power Line Conducted…

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TEST REPORT Compiled by: Reviewed by: Approved by: Zhou Kui Arron Liu Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name: WindMaster Smart Tower Fan FCC ID: 2BGYX-TF01 Trademark: （Provirtec） Model Number: TF-01 Prepared For: Shenzhen Qichuang Intelligent Environment Technology Co.,LTD Address: 20D Block A, South District, Lvjing Xiangsong Meilu Yuan, Xinniu Community, Minzhi Street, Longhua District, Shenzhen, China Manufacturer: ZHONGSHAN SEEMAX ELECTRICAL APPLIANCE CO.,LTD Address: 4/F Building B, No.13 Dongrui Third Road, Shenglong,Xiaolan Town, Zhongshan City, Guangdong, China Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Jun. 11, 2024 Sample tested Date: Jun. 11, 2024 to Jun. 26, 2024 Issue Date: Jun. 26, 2024 Report No.: CTB240626006RFX Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2013 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB240626006RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 34 TABLE OF CONTENT Test Report Declaration Page 1. VERSION .......................................................................................................................................... 3 2. TEST SUMMARY ............................................................................................................................. 4 3. MEASUREMENT UNCERTAINTY ................................................................................................... 5 4. PRODUCT INFORMATION AND TEST SETUP ............................................................................. 6 4.1 Product Information ............................................................................................................................ 6 4.2 Test Setup Configuration ................................................................................................................... 6 4.3 Support Equipment ............................................................................................................................ 6 4.4 Channel List ....................................................................................................................................... 7 4.5 Test Mode .......................................................................................................................................... 7 4.6 Test Environment ............................................................................................................................... 7 5. TEST FACILITY AND TEST INSTRUMENT USED ......................................................................... 8 5.1 Test Facility ........................................................................................................................................ 8 5.2 Test Instrument Used ......................................................................................................................... 8 6. AC POWER LINE CONDUCTED EMISSION .................................................................................. 10 6.1 Block Diagram Of Test Setup ........................................................................................................... 10 6.2 Limit .................................................................................................................................................. 10 6.3 Test procedure ................................................................................................................................. 10 6.4 Test Result ....................................................................................................................................... 12 7. RADIATED SPURIOUS EMISSION ............................................................................................... 14 7.1 Block Diagram Of Test Setup ........................................................................................................... 14 7.2 Limit .................................................................................................................................................. 14 7.3 Test procedure ................................................................................................................................. 15 7.4 Test Result ....................................................................................................................................... 16 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS ................................................ 23 8.1 Block Diagram Of Test Setup ........................................................................................................... 23 8.2 Limit .................................................................................................................................................. 23 8.3 Test procedure ................................................................................................................................. 23 8.4 Test Result ....................................................................................................................................... 24 9. COUDUCTED OUTPUT POWER ............................................................…

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Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: TF-01 Radiated Emission Below 1G Above 1G Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Conducted emissions