2AZG2MRZ-14ring light

Shenzhen oulaisi Technology Co., Ltd B810, No.57, second industrial zone, houting community, Shajing street, Bao'an District, Shenzhen, China Statement Product: ring light Model: MRZ-14 Additional Model: MRZ-18, MRZ-10, MRZ-10.1, MRZ-10.2, MRZ-10.3 Trademark: MRZ We hereby state that All models above are identical in interior structure, electrical circuits and components, and just model names are different for the marketing requirement. Your assistance on this matter is highly appreciated. Yours sincerely, Signature: Date: 2021/04/07 Name: Xiaoming Huang Title: Manager Company: Shenzhen oulaisi Technology Co., Ltd

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2021-04-07 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorizeCompliance Testing, LLCto 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). Sincerely, <Signature> Name: Xiaoming Huang Title: Manager Company: Shenzhen oulaisi Technology Co., Ltd

Shenzhen oulaisi Technology Co., Ltd 2021-04-07 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act asAgent On our behalf, I appointShenzhen Tongce Testing Lab. / 1B/F., Building 1, Yibaolai Industrial Park, Qiaotou, Fuyong, Baoan District,Shenzhen, Guangdong, China(Name of Agent company name andaddress) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonourbehalf,Iack nowledgethatallresponsibilityforcomplyingwiththetermsandconditionsforcertification,stillres ideswith Shenzhen oulaisi Technology Co., Ltd / B810, No.57, second industrial zone, houting community, Shajing street, Bao'an District, Shenzhen(Applicant Nameandaddress) <Signature> Name: Xiaoming Huang Title: Manager Applicant Company: Shenzhen oulaisi Technology Co., Ltd

Page 1 of 4 Appendix B: Photographs of EUT Product: ring light Model: MRZ-14 External Photos Page 2 of 4 Page 3 of 4 Page 4 of 4

LabelArtworkandLocation Model:MRZ-14 Label： Size:L*W=10*30mm ringlight ModelNo.:MRZ-14 FCCID:2AZG2MRZ-14 Thisdevicecomplieswithpart15oftheFCC rules.Operationissubjecttothefollowingtwo conditions(1)thisdevicemaynotcauseharmful interference,and(2)thisdevicemustacceptany interferencereceived,includinginterferencethat maycauseundesiredoperation. Location

Page 1 of 4 Appendix B: Photographs of EUT Product: ring light Model: MRZ-14 Internal Photos Page 2 of 4 433 ANT Page 3 of 4 BT ANT Page 4 of 4

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID: 2AZG2MRZ-14 Product: ring light Model No.: MRZ-14 Additional Model No.: MRZ-18, MRZ-10, MRZ-10.1, MRZ-10.2, MRZ-10.3 Trade Mark: MRZ Report No.: TCT210326E028 Issued Date: Apr. 06, 2021 Issued for: Shenzhen oulaisi Technology Co., Ltd B810, No.57, second industrial zone, houting community, Shajing street, Bao'an District, Shenzhen, China Issued By: Shenzhen Tongce Testing Lab. TCT Testing Industrial Park, Fuqiao 5th Industrial Zone, Fuhai Street, Bao'an District, Shenzhen, Guangdong, 518103, People's Republic of China TEL: +86-755-27673339 FAX: +86-755-27673332 Note: This report shall not be reproduced except in full, without the written approval of Shenzhen Tongce Testing Lab. This document may be altered or revised by Shenzhen Tongce Testing Lab. personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT210326E028 Page 2 of 25 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TABLE OF CONTENTS 1. Test Certification ..................................................................................... 3 2. Test Result Summary .............................................................................. 4 3. EUT Description ....................................................................................... 5 4. General Information ................................................................................. 6 4.1. Test Environment and Mode ................................................................................. 6 4.2. Description of Support Units ................................................................................ 6 5. Facilities and Accreditations .................................................................. 7 5.1. Facilities ................................................................................................................. 7 5.2. Location ................................................................................................................. 7 5.3. Measurement Uncertainty ..................................................................................... 7 6. Test Results and Measurement Data ..................................................... 8 6.1. Antenna Requirement ........................................................................................... 8 6.2. Conducted Emission ............................................................................................. 9 6.3. Radiated Emission Measurement ...................................................................... 10 6.4. Manually Activated Transmitter ......................................................................... 21 6.5. Occupied Bandwidth ........................................................................................... 23 Appendix A: Photographs of Test Setup Appendix B: Photographs of EUT Report No.: TCT210326E028 Page 3 of 25 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. Test Certification Product: ring light Model No.: MRZ-14 Additional Model No.: MRZ-18, MRZ-10, MRZ-10.1, MRZ-10.2, MRZ-10.3 Trade Mark: MRZ Applicant: Shenzhen oulaisi Technology Co., Ltd Address: B810, No.57, second industrial zone, houting community, Shajing street, Bao'an District, Shenzhen, China Manufacturer: Shenzhen oulaisi Technology Co., Ltd Address: B810, No.57, second industrial zone, houting community, Shajing street, Bao'an District, Shenzhen, China Date of Test: Mar. 29, 2021 – Apr. 06, 2021 Applicable Standards: FCC CFR Title 47 Part 15 Subpart C Section 15.231 The above equipment has been tested by Shenzhen Tongce Testing Lab. and found compliance with the requirements set forth in the technical standards mentioned above. The results of testing in this report apply only to the product/system, which was tested. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. Tested By: Date: Apr. 06, 2021 Aaron Mo Reviewed By: Date: Apr. 06, 2021 Beryl Zhao Approved By: Date: Apr. 06, 2021 Tomsin Report No.: TCT210326E028 Page 4 of 25 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. Test Result Summary Requirement CFR 47 Section Result Conduction Emission, 0.15MHz to 30MHz §15.207 PASS Manually Activated Transmitter §15.231(a) (1) PASS Radiation Emission §15.231(b), §15.205, §15.209, §15.35 PASS Occupied Bandwidth §15.231(c) PASS Note: 1. PASS: Test item meets the requirement. 2. Fail: Test item does not meet the requirement. 3. N/A: Test case does not apply to the test object. 4. The test result judgment is decided by the limit of test standard. Report No.: TCT210326E028 Page 5 of 25 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. EUT Description Product: ring light Model No.: MRZ-14 Additional Model No.: MRZ-18, MRZ-10, MRZ-10.1, MRZ-10.2, MRZ-10.3 Trade Mark: MRZ Operation Frequency: 433.92MHz Modulation Technology: FSK Antenna Type: PCB Antenna Antenna Gain: 0dBi Power Supply: Rechargeable Li-ion Battery DC 3.7V Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not responsible for this parameter. Report No.: TCT210326E028 Page 6 of 25 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 4. General Information 4.1. Test Environment and Mode Operating Environment: Temperature: 25.0 C Humidity: 55 % RH Atmospheric Pressure: 1010 mbar Test Mode: Operation mode: Keep the EUT in continuous transmitting with modulation The sample was placed (0.8m below 1GHz, 1.5m above 1GHz) above the ground plane of 3m chamber. Measurements in both horizontal and vertical polarities were performed. During the test, each emission was maximized by: having the EUT co…

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Page 1 of 2 Appendix A: Photographs of Test Setup Product: ring light Model: MRZ-14 Radiated Emission Page 2 of 2 Conducted Emission