2AZR9-OL1700501RM433 Remote Control

Caution: The user is cautioned that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC RF Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and any part of your body.(only for 110/160CFM Bath Fan with Bluetooth Speaker)

CFR 47 §2.911 (d)(5) Attestation Date: 08-24-2023 FCC ID: 2AZR9-OL1700501RM Grantee FRN: 0030864326 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA 1. Syvio Technology CO., LIMITED (“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. 2. Syvio Technology CO., LIMITED (“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 and is not an affiliate or subsidiary of an entity identified on the Covered List. Sincerely yours, Name: XiaoYan Chen Job Title: OD Company Name: Syvio Technology CO., LIMITED

Syvio Technology CO., LIMITED Date: 8/24/2023 Federal Communications Commissions Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(7) Agent Designation Attestation FCC ID: 2AZR9-OL1700501RM Grantee’s FRN: 0030864326 Syvio Technology CO., LIMITED (“the applicant”) as required by section 2.911(d)(7), designates the following agent, located in the United States, for purposes of acting as the applicant’s agent for service of process. The applicant acknowledges that they will 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. The applicant further acknowledges their responsibility under CFR 47 §2.929(c) to inform the FCC whenever the agent information changes. U.S. Agent Information: Contact Person: Alan Graham FRN: 0033407131 Company Name: VISHTEC LLC Company Address: 9888 W Belleview Ave Ste 2142 Denver CO 80123 Email: [email protected] Sincerely yours, Name: XiaoYan Chen Job Title: OD Company Name: Syvio Technology CO., LIMITED

Date:8/29/2023 FederalCommunicationsCommissions AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 RE:CFR47§2.911(d)(7)FCCUSAgentLetterofAttestation GranteeCode:2AZR9 GranteeFRN:0030864326 Towhomitmayconcern: FCCUSAgent AgentCompanyName：VISHTECLLC FCCFRN: 0033407131 AgentContactName ：AlanGraham AgentUSAddress：9888WBelleviewAveSte2142DenverCO80123 AgentEmailAddress：[email protected] ThisletteristoconfirmthatwehaveacceptedtheresponsibilitytoactasUSAgentonbehalf ofSyvioTechnologyCO.,LIMITED(“theapplicant”)fortheabovereferencedFCCID. Weareawareoftherequirementsandresponsibilitiesoftheapplicant’sagentforserviceof processasoutlinedintheFCCsection2.911(d)(7)andReportandOrderFCC22-84 paragraph63. Sincerely, Signature AuthorizedAgentContactPersonName：AlanGraham AgentcontactJobTitle：Compliancemanager AgentCompanyname：VISHTECLLC

Syvio Technology CO., LIMITED Date: 2023.08.24 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 To whom it may concern: I, the undersigned, hereby authorize UL Verification Services Inc. to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by UL Verification Services Inc. on our behalf shall have the same effect as acts of our own. I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). In authorizing UL Verification Services Inc. as our representative, we still recognize that we are responsible to: a) comply with the relevant provisions of the certification program; b) make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints; c) make claims regarding certification only in respect of the scope for which certification has been granted; d) do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized; e) upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division; f) use certification only to indicate the products are certified as being in conformity with specified standards; g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner; h) ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division; i) keep a record of all complaints made known to us relating to the product’s compliance with requirements of the relevant standard and to make these records available to the when requested; j) take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification; k) document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signed by: Company Name: Syvio Technology CO., LIMITED Contact Name: XiaoYan Chen Title of Person：OD Address: Room A, 8/F,Kwok Cheung Building, 635-637 Shanghai Street, Mong Kok, Hong Kong , China

Syvio Technology CO., LIMITED Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Request for Confidentiality FCC ID: 2AZR9-OL1700501RM To Whom It May Concern: Pursuant to the provisions of Sections 0.457 and 0.459 of the Commission’s rules (47 CFR §§ 0.457, 0.459), we are requesting the Commission to withhold the following attachments as confidential document from public disclosure indefinitely. Schematic Diagram Block Diagram Theory of Operation 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. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Best Regards Company Name: Syvio Technology CO., LIMITED Contact Name: XiaoYan Chen Title of Person：OD Address: Room A, 8/F,Kwok Cheung Building, 635-637 Shanghai Street, Mong Kok, Hong Kong , China Date:08/24/2023

External Photographs Page 2 of 5 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. . View of EUT-1 View of EUT-2 Page 3 of 5 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. . View of EUT-3 View of EUT-4 Page 4 of 5 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. . View of EUT-5 View of EUT-6 Page 5 of 5 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. . View of EUT-7

Note: This label will carved the surface of device.

Internal Photographs Page 2 of 4 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. . Internal View of EUT-1 Internal View of EUT-2 Page 3 of 4 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. . Internal View of EUT-3 Internal View of EUT-4 Page 4 of 4 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. . Internal View of EUT-5 Internal View of EUT-6 Antenna

FCC ID: 2AZR9-OL1700501RM According to KDB 447498 D01 General RF Exposure Guidance v06, section 4.3.1 At 100 MHz to 6 GHz and for test separation distances ≤ 50 mm, the SAR test exclusion threshold is determined according to the following [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] x [√f(GHz)] ≤ 3.0 1. SAR test exclusion threshold Frequency: 433.92 MHz (min. separation distances = 5 mm) SAR test exclusion thresholds (5 mm) = 3 x 5 / (√ 0.43392) = 22.77 mW Max. Tune-up Tolerance (mW) SAR Test Exclusion Thresholds (5mm) (mW) 1 22.77 Calculation Value: 1 (mW) / 5 (mm) x √ 0.43392 = 0.132 So, Calculation value ≤ 3.0 Remark: -Based on field strength 89.60 dBuV/m at 3m transmit power(eirp) of the device was calculated as 0.28 mW using free space formula. -Max. conducted power 0.28 mW is closet 1 mW, so 1 mW was calculated. -When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. 2. Conclusion: No SAR is required.

The results reported herein have been performed in accordance with the laboratory’s terms of accreditation. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report apply to the test sample(s) mentioned above at the time of the testing period only and are not to be used to indicate applicability to other similar products. CFR 47 FCC PART 15 SUBPART C CERTIFICATION TEST REPORT For 433 Remote Control MODEL NUMBER: OL1700501RM FCC ID: 2AZR9-OL1700501RM REPORT NUMBER: 4790967874-1 ISSUE DATE: August 28, 2023 Prepared for Syvio Technology CO., LIMITED Room A, 8/F,Kwok Cheung Building, 635-637 Shanghai Street, Mong Kok, Hong Kong , China Prepared by UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch Building 10, Innovation Technology Park, No. 1, Li Bin Road, Song Shan Lake Hi- Tech Development Zone Dongguan, 523808, People’s Republic of China Tel: +86 769 22038881 Fax: +86 769 33244054 Website: www.ul.com REPORT NO.: 4790967874-1 Page 2 of 38 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO.: 10-SL-F0057 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Revision History Rev. Issue Date Revisions Revised By V0 08/28/2023 Initial Issue REPORT NO.: 4790967874-1 Page 3 of 38 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO.: 10-SL-F0057 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Summary of Test Results Clause Test Items FCC Rules Test Results 1 Transmitter Timeout CFR 47 FCC §15.231 (a) (1) Pass 2 20 dB Bandwidth and 99 % Occupied Bandwidth CFR 47 FCC §15.231 (c) Pass 3 Radiated Emission CFR 47 FCC §15.231 (b)(e) CFR 47 FCC §15.205 and §15.209 Pass 4 Antenna Requirement CFR 47 FCC §15.203 Pass Note 1: This test report is only published to and used by the applicant, and it is not for evidence purpose in China. Note 2: The measurement result for the sample received is <Pass> according to < CFR 47 FCC PART 15 SUBPART C and > when <Accuracy Method> decision rule is applied. REPORT NO.: 4790967874-1 Page 4 of 38 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO.: 10-SL-F0057 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. TABLE OF CONTENTS 1. ATTESTATION OF TEST RESULTS ................................................................................. 5 2. TEST METHODOLOGY ..................................................................................................... 6 3. FACILITIES AND ACCREDITATION ................................................................................. 6 4. CALIBRATION AND UNCERTAINTY ................................................................................ 7 4.1. MEASURING INSTRUMENT CALIBRATION .............................................................. 7 4.2. MEASUREMENT UNCERTAINTY ............................................................................... 7 5. EQUIPMENT UNDER TEST ............................................................................................... 8 5.1. DESCRIPTION OF EUT .............................................................................................. 8 5.2. MAXIMUM FIELD STRENGTH .................................................................................... 8 5.3. DESCRIPTION OF AVAILABLE ANTENNAS .............................................................. 8 5.4. TEST ENVIRONMENT ................................................................................................ 8 5.5. DESCRIPTION OF TEST SETUP ................................................................................ 9 5.6. MEASURING INSTRUMENT AND SOFTWARE USED ..............................................10 6. ANTENNA PORT TEST RESULTS ...................................................................................11 6.1. ON TIME AND DUTY CYCLE .....................................................................................11 6.2. TRANSMITTER TIMEOUT .........................................................................................14 6.3. 20 dB BANDWIDTH AND 99 % OCCUPIED BANDWIDTH ........................................17 6.4. RADIATED TEST RESULTS ......................................................................................20 6.4.1. FIELD STRENGTH AND SPURIOUS EMISSIONS BELOW 1 GHz AND ABOVE 30 MHz 27 6.4.2. SPURIOUS EMISSIONS ABOVE 1 GHz .............................................................31 6.4.3. SPURIOUS EMISSIONS BELOW 30 MHz ..........................................................35 7. ANTENNA REQUIREMENTS ............................................................................................38 REPORT NO.: 4790967874-1 Page 5 of 38 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO.: 10-SL-F0057 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. 1. ATTESTATION OF TEST RESULTS Applicant Information Company Name: Syvio Technology CO., LIMITED Address: Room A, 8/F,Kwok Cheung Building, 635-637 Shanghai Street, Mong Kok, Hong Kong China Manufacturer Information Company Name: Linkzone Technology Co., Limited Address: 4001, Block C, Building 1, Section 1, Chuangzhi Yuncheng, Liuxian Avenue, Xili Communityxili Street, Nanshan District EUT Information EUT Name: 433 Remote Control Model: OL1700501RM Sample Received Date: August 15, 2023 Sample Status: Normal Sample ID: 6360861 Date of Tested: August 15, 2023 ~ August 28, 2023 APPLICABLE STANDARDS STANDARD TEST RESULTS CFR 47 FCC PART 15 SUBPART C PASS Prepared By: Checked By: Fanny Huang Denny Huang Engineer Project Associate S…

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Appendix II Setup Photographs RADIATED RF MEASUREMENT SETUP (ABOVE 1 GHz) MEASUREMENT POSITION MEASUREMENT POSITION (X axis) MEASUREMENT POSITION (Y axis) MEASUREMENT POSITION (Z axis) RADIATED RF MEASUREMENT SETUP (30MHz~1GHz) RADIATED RF MEASUREMENT SETUP (Below 30MHz)