2AZG2MRZ-10ring light

20 2 Eq u Fed 743 Col FC C Prod Re q Pur s the Th e cust harm <Si g Na m Title Com 21-04-07 uipment Aut deral Comm 35 Oakland umbia, MD C ID: 2AZG duct Name quest for C suant to Se following do  Schema  Block d  Operati ese materia tomarily rel mful to the c gnature> me: Xiaomin e: Manager mpany: She Shenzh torisation D munication d Mills Roa D 21046 G2MRZ-10 : ring light Confidentia ections 0.45 ocuments b atics iagram on descrip t als contain leased to th company an ng Huang enzhen oula hen oula ivision ns Commis ad lity 57 and 0.45 be held conf tion n trade se he public. nd provide aisi Technol aisi Tec ssion 59 of the co fidential: ecrets and The publi c unjustified b ogy Co., Lt chnolog mmissions proprieta r c disclosure benefits to o d gy Co., L rules, we h ry informat e of this inf our compet Ltd hereby requ tion and a formation m itors. uest that are not might be

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-10 External Photos Page 2 of 4 Page 3 of 4 Page 4 of 4

LabelArtworkandLocation Model:MRZ-10 Label： Size:L*W=15*10mm ringlight ModelNo.:MRZ-10 FCCID:2AZG2MRZ-10 Location

Page 1 of 3 Appendix B: Photographs of EUT Product: ring light Model: MRZ-10 Internal Photos Page 2 of 3 Antenna Page 3 of 3

RF exposure evaluation §2.1093 Radiofrequency radiation exposure evaluation: Portable Devices. According to§15.247(i) and§1.1307b(1), 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 guidance. The 1-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR, where  f(GHz) is the RF channel transmit frequency in GHz  Power and distance are rounded to the nearest mW and mm before calculation  When the minimum test separation distance is < 5 mm, a distance of 5 mm according is applied to determine SAR test exclusion.  The result is rounded to one decimal place for comparison  For BLE: Channel Frequency (GHz) Max. Power (dBm) Tune up Power (dBm) Max. Tune up Power (dBm) Max. Tune up Power (mW) Test distance (mm) Result exclusion thresholds for 1-g SAR CH 39 2.480 -5.89 -6.5±1 -5.5 0.28 5 0.09 3.0 Result: Base on the calculation value, No SAR measurement is required.

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID: 2AZG2MRZ-10 Product: ring light Model No.: MRZ-10 Additional Model No.: N/A Trade Mark: MRZ Report No.: TCT210326E014 Issued Date: Apr. 07, 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.: TCT210326E014 Page 2 of 40 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. Conducted Output Power ................................................................................... 10 6.4. Emission Bandwidth ........................................................................................... 13 6.5. Power Spectral Density ....................................................................................... 16 6.6. Conducted Band Edge and Spurious Emission Measurement ....................... 19 6.7. Radiated Spurious Emission Measurement ...................................................... 22 Appendix A: Photographs of Test Setup Appendix B: Photographs of EUT Report No.: TCT210326E014 Page 3 of 40 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-10 Additional Model No.: N/A 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 15.247 FCC KDB 558074 D01 15.247 Meas Guidance v05r02 ANSI C63.10:2013 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 Kevin Huang Reviewed By: Date: Apr. 07, 2021 Beryl Zhao Approved By: Date: Apr. 07, 2021 Tomsin Report No.: TCT210326E014 Page 4 of 40 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 Antenna requirement §15.203/§15.247 (c) PASS AC Power Line Conducted Emission §15.207 N/A Conducted Peak Output Power §15.247 (b)(3) PASS 6dB Emission Bandwidth §15.247 (a)(2) PASS Power Spectral Density §15.247 (e) PASS Band Edge §15.247(d) PASS Spurious Emission §15.205/§15.209 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. 5. After pre-testing the two earphones, the two earphones are left and right ears respectively; we found that the left earphone is the worst case, so the results are recorded in this report. Report No.: TCT210326E014 Page 5 of 40 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-10 Additional Model No.: N/A Trade Mark: MRZ Bluetooth Version: V4.2 Operation Frequency: 2402MHz~2480MHz Channel Separation: 2MHz Number of Channel: 40 Modulation Type: GFSK Antenna Type: PCB Antenna Antenna Gain: 0dBi Power Supply: DC 3V Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not responsible for this parameter. Operation Frequency each of channel Channel Frequency Channel Frequency Channel Frequency Channel Frequency 0 2402MHz 10 242…

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Page 1 of 1 Appendix A: Photographs of Test Setup Product: ring light Model: MRZ-10 Radiated Emission