2AQBG-RC04Remote Control

uncontrolled environment . FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an Note : This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates,uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help.

Zhejiang Yihe Sanitary Ware Co., Ltd. CFR47§2.911(d)(5)(i)(ii)AttestationLetter Attestation Letter Date: 2023/03/20 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i)(ii) Filing FCC ID: 2AQBG-RC04 Zhejiang Yihe Sanitary Ware Co., Ltd. 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. Zhejiang Yihe Sanitary Ware 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, Signature ContactPerson:Yunkaiwang Title:Manager CompanyName &Address:Zhejiang YiheSanitaryWareCo.,Ltd./DistrictA,No.102East TaiheRoad,Haimenstreet,Jiaojiang,Taizhou,Zhejiang,China

CFR 47 §2.911(d)(7) U.SAgent U.S. AGENT LETTER OF ATTESTATION Date: 2023-03-20 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2AQBG-RC04 Zhejiang Yihe Sanitary Ware Co., Ltd. (“the Applicant”) certifies that, as of the date of the filing of the application, Megmeet USA, Inc. (U.S. agent). is our designated U.S. agent for service of process for the above referenced FCC ID. ZhejiangYihe Sanitary Ware Co., Ltd. (“the Applicant”)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. Megmeet USA, Inc. (U.S. agent) 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: Company Name: Megmeet USA, Inc. Address: 4020 Moorpark Avenue,Suite 115,San Jose, CA 95117,United States FRN: 0033658444 Tel.: (408) 260-7211 Email: [email protected] Signed by (printed name): Derek Liu Signature: Applicant: Zhejiang Yihe Sanitary Ware Co., Ltd. Add: District A, No. 102 East Taihe Road, Haimen street, Jiaojiang,Taizhou,Zhejiang, China FRN: 0027658319 Tel: 0576-81107124 Email: [email protected] Signed by (printed name): Yunkai wang Signature:

QA-FR-170-B7/29/2014 Company:ZhejiangYiheSanitaryWareCo.,Ltd. Add:DistrictA,No.102EastTaiheRoad,Haimenstreet,Jiaojiang,Taizhou,Zhejiang, China Tel:0576-81107124 Fax:0576-81107124 E-mail:[email protected] FCC Authorization 2023-03-20 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:AgentAuthorization Towhomitmayconcern: We ZhejiangYiheSanitaryWareCo.,Ltd. ,theundersigned,HerebyauthorizesBay AreaComplianceLaboratoriesCorp.(LinkouLaboratory)toactonitsbehalfinall mattersrelatingtoapplicationforEquipmentauthorization,including thesigningofall documentsrelatingtothesematters.AllactscarriedoutbyBayAreaCompliance LaboratoriesCorp.(LinkouLaboratory)onourbehalfshallhavethesameeffectasour ownaction. We,theundersigned,herebycertifythatwearenotsubjecttoadenialoffederalbenefits, thatincludesFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988, 21U.S.C.862. Thisauthorizationisvalid untilfurtherwrittennoticefromtheapplicant. SincerelyYours, Signature: PrintName:yunkaiwang Title:Manager

QA-FR-171-A Company: Zhejiang Yihe Sanitary Ware Co., Ltd. Add: District A, No. 102 East Taihe Road, Haimen street, Jiaojiang,Taizhou,Zhejiang, China Tel: 0576-81107124 Fax: 0576-81107124 E-mail: [email protected] FCC Confidential Authorization 2023-03-20 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2AQBG-RC04 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules,Zhejiang Yihe Sanitary Ware Co., Ltd. hereby requests long-term confidential treatment of information accompanying this application as outlined below: Block Diagram Schematics Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Signature: Print Name: yun kai wang Title: Manager

Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK230220075 Page 1 of 2 External Photographs Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK230220075 Page 2 of 2 ***** END *****

Remote Control Model No.: RC04 Input： 3V 30uA FCC ID ：2AQBG-RC04 Zhejiang Yihe Sanitary Ware Co., Ltd. Made in China

Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK230220075 Page 1 of 3 Internal Photographs Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK230220075 Page 2 of 3 Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK230220075 Page 3 of 3 Antenna RF Chip ***** END *****

Bay Area Compliance Laboratories Corp.(Linkou Laboratory) No.: RLK230220075RF01 Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Page 11 of 27 5 FCC §1.1307(b)(3)(i) – RF EXPOSURE 5.1 Applicable Standard According to subpart 15.249 and subpart §1.1307(b)(3)(i), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. For single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph (b)(2) of this section): A single RF source is exempt if: (A) The available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption may not be used in conjunction with other exemption criteria other than those in paragraph (b)(3)(ii)(A) of this section. Medical implant devices may only use this exemption and that in paragraph (b)(3)(ii)(A); (B) Or the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold Pth (mW) described in the following formula. This method shall only be used at separation distances (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by: (C) Or using Table 1 and the minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. For the exemption in Table 1 to apply, R must be at least λ/2π, where λ is the free-space operating wavelength in meters. If the ERP of a single RF source is not easily obtained, then the available maximum time-averaged power may be used in lieu of ERP if the physical dimensions of the radiating structure(s) do not exceed the electrical length of λ/4 or if the antenna gain is less than that of a half- wave dipole (1.64 linear value). Bay Area Compliance Laboratories Corp.(Linkou Laboratory) No.: RLK230220075RF01 Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Page 12 of 27 5.2 RF Exposure Evaluation Result Calculate the ERP from the radiated field strength in the far field using Equation ERPE Meas 20log (dMeas)-104.7 - 2.15 (dBm) ERP=87.38 - 95.2 - 2.15 = -9.97 dBm Tune-up ERP = -9.5 dBm * From the radiated measurement 2405 MHz is worst. Project info § 1.1307(b)(3)(i)(A) The available maximum time-averaged power is no more than 1 mW § 1.1307(b)(3)(i)(A) method is applicable. Result: The device meets the exemption requirement. Band Freq (MHz) Tune‐up ERP (dBm) Tune‐up ERP (mW) SRD2405‐9.50.11 Band Freq (MHz) Result Option A SRD2405 exempt

Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Page 1 of 27 FCC Part 15.249 TEST REPORT For Zhejiang Yihe Sanitary Ware Co., Ltd. District A, No. 102 East Taihe Road, Haimen street, Jiaojiang,Taizhou,Zhejiang, China FCC ID: 2AQBG-RC04 Report Type: Original Report Product Type: Remote Control Report Producer : Coco Lin Report Number : RLK230220075RF01 Report Date : 2023-04-19 Reviewed By: Rory Cheng Prepared By: Bay Area Compliance Laboratories Corp.( Linkou Laboratory) No. 6, Wende 2Rd., Guishan Dist., Taoyuan City 33382, Taiwan (R.O.C.) Tel: +886 (3)3961072; Fax: +886 (3) 3961027 www.bacl.com.tw Bay Area Compliance Laboratories Corp.(Linkou Laboratory) No.: RLK230220075RF01 Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Page 2 of 27 Revision History Revision No. Report Number Issue Date Description Author/ Revised by 0.0 RLK230220075 RLK230220075RF01 2023-04-19 Original Report Coco Lin Bay Area Compliance Laboratories Corp.(Linkou Laboratory) No.: RLK230220075RF01 Note: It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Page 3 of 27 TABLE OF CONTENTS 1 General Information ................................................................................................................... 4 1.1 Product Description for Equipment under Test (EUT) ......................................................... 4 1.2 Objective ............................................................................................................................... 5 1.3 Related Submittal(s)/Grant(s) ................................................................................................ 5 1.4 Test Methodology .................................................................................................................. 5 1.5 Statement of Compliance ...................................................................................................... 5 1.6 Measurement Uncertainty ..................................................................................................... 5 1.7 Environmental Conditions ..................................................................................................... 6 1.8 Test Facility ........................................................................................................................... 6 2 System Test Configuration ......................................................................................................... 7 2.1 Description of Test Configuration ......................................................................................... 7 2.2 Equipment Modifications ...................................................................................................... 7 2.3 EUT Exercise Software ......................................................................................................... 7 2.4 Support Equipment List and Details ...................................................................................... 7 2.5 External Cable List and Details ............................................................................................. 7 2.6 Block Diagram of Test Setup ................................................................................................ 8 3 Summary of Test Results ............................................................................................................ 9 4 Test Equipment List and Details .............................................................................................. 10 5 FCC §1.1307(b)(3)(i) – RF EXPOSURE ................................................................................. 11 5.1 Applicable Standard ............................................................................................................ 11 5.2 RF Exposure Evaluation Result ........................................................................................... 12 6 FCC §15.203 – Antenna Requirements ................................................................................... 13 6.1 Applicable Standard ............................................................................................................ 13 6.2 Antenna Information ........................................................................................................... 13 7 FCC §15.207(a) – AC Line Conducted Emissions .................................................................. 14 7.1 Applicable Standard .......................................................................................................... 14 7.2 EUT Setup .......................................................................................................................... 14 7.3 EMI Test Receiver Setup .................................................................................................. 15 7.4 Test Procedure ................................................................................................................... 15 7.5 Factor & Over Limit ......................................................................................................... 15 7.6 Test Results ........................................................................................................................ 15 8 FCC §15.209, §15.205 , §15.249 - Radiated Emissions ........................................................... 16 8.1 Applicable Standard .......................................................................................................... 16 8.2 EUT Setup .......................................................................................................................... 16 8.3 EMI Test Receiver & Spectrum Analyzer Setup ............................................................ 17 8.4 Test Procedure ..................…

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Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK230220075 Page 1 of 2 EUT Setup Photographs Radiated Emission (Below 1GHz)： . Bay Area Compliance Laboratories Corp. (Linkou Laboratory) Project No.: RLK230220075 Page 2 of 2 Radiated Emission (Above 1GHz)： ***** END *****