2BB6L-0441TGLED Light Strip

DONG GUAN YI ZHAN NETWORK TECHNOLOGY CO.,LTD Product Similarity Declaration Product name: LED Light Strip Model name: ROY-0441TG ,ROY-0431TG，ROY-0432TG，ROY-0438TG， ROY-0439TG，ROY-0440TG FCC ID/ISED: 2BB6L-0441TG We (DONG GUAN YI ZHAN NETWORK TECHNOLOGY CO.,LTD.) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), the only difference is the model name Signature: Name: Yang Ming Yuan Title: GeneralManager Place：Room 308,International Business Building Hongfu Road, Nan Cheng District DONG GUAN，China Date：Jul. 27, 2023

DONG GUAN YI ZHAN NETWORK TECHNOLOGY CO.,LTD. U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: Baihetian Innovative Solutions FRN: 0033401605 Contact Name: Kenneth Young Street Address: 6837 Chase Rd City/Province/Zip: Dearborn, MI 48126 Telephone No: 313-395-3113 Email: [email protected] This letter is to confirm that we (“the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature: Date: Signed by (Printed Name/Title): The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: DONG GUAN YI ZHAN NETWORK TECHNOLOGY CO.,LTD. Grantee Code: 2BB6L FCC ID: 2BB6L-0441TG Contact Name: Yang Ming Yuan Street Address: Room 308,International Business Building Hongfu Road, Nan Cheng District DONG GUAN，China Telephone No: 13922307632 Email:[email protected] Applicant Signature: Date:Jul.27.2023 Signed by (Printed Name/Title): Yang Ming Yuan/GeneralManager

C5266091_X24_Ed.2 1/1 DONG GUAN YI ZHAN NETWORK TECHNOLOGY CO.,LTD. “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: DONG GUAN YI ZHAN NETWORK TECHNOLOGY CO.,LTD. Grantee code: 2BB6L FCC ID: 2BB6L-0441TG Contact Name: Yang Ming Yuan Address: Room 308,International Business Building Hongfu Road, Nan Cheng District DONG GUAN，China Telephone No: 13922307632 Fax No: 13922307632 Email: [email protected] i. [DONG GUAN YI ZHAN NETWORK 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. The applicant must sign this certification. ii. [DONG GUAN YI ZHAN NETWORK TECHNOLOGY CO.,LTD.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. Date: 2023/07/27 Applicant’s Name: DONG GUAN YI ZHAN NETWORK TECHNOLOGY CO.,LTD. Title: GeneralManager Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

C5266091_X10_Ed.2 1/1 DONG GUAN YI ZHAN NETWORK TECHNOLOGY CO.,LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-07-27 Subject: Request for Confidentiality FCC ID: 2BB6L-0441TG To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. 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 NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. 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. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ______ days from the date of the Grant of Equipment Authorization and prior to marketing. 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. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name: Yang Ming Yuan Title: GeneralManager 2023.07.27

FCC ID: 2BB6L-0441TG Page 1 of 4 Report No.: CTL2307111021-WF External Photos of EUT FCC ID: 2BB6L-0441TG Page 2 of 4 Report No.: CTL2307111021-WF FCC ID: 2BB6L-0441TG Page 3 of 4 Report No.: CTL2307111021-WF FCC ID: 2BB6L-0441TG Page 4 of 4 Report No.: CTL2307111021-WF

FCC ID: 2BB6L-0441TG Page 1 of 1 Report No.: CTL2307111021-WF FCC ID Label Information Label location: LED Light Strip Model: ROY-0441TG FCC ID : 2BB6L-0441TG

FCC ID: 2BB6L-0441TG Page 1 of 2 Report No.: CTL2307111021-WF Internal Photos of EUT Bluetooth Antenna FCC ID: 2BB6L-0441TG Page 2 of 2 Report No.: CTL2307111021-WF

Page 1 of 1 FCC ID:2BB6L-0441TG Report No.:CTL2307111021-WF RF Exposure Letter According to 447498 D01 General RF Exposure Guidance v06 The 1 ‐ g and 10 ‐ 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 and ≤ 7.5 for 10 ‐ g extremity 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 The result is rounded to one decimal place for comparison BLE: Pt = -3.01dBm=0.5mW at 2440MHz So (0.5mW/5mm)x√2.440GHz = 0.1562<3 Then SAR evaluation is not required

Shenzhen CTL Testing Technology Co., Ltd. Tel: +86-755-89486194 E-mail: [email protected] TEST REPORT FCC PART 15.247 Report Reference No. ................ : CTL2307111021-WF Compiled by: ( position+printed name+signature) Happy Guo (File administrators) Tested by: ( position+printed name+signature) Yapeng Jin (Test Engineer) Approved by: ( position+printed name+signature) Ivan Xie (Manager) Product Name ............................ : LED Light Strip Model/Type reference ................ : ROY-0441TG List Model(s) ............................... : ROY-0441TG ,ROY-0431TG，ROY-0432TG，ROY-0438TG， ROY-0439TG，ROY-0440TG Trade Mark .................................. : Roykaw FCC ID ......................................... : 2BB6L-0441TG Applicant’s name ....................... : DONG GUAN YI ZHAN NETWORK TECHNOLOGY CO.,LTD. Address of applicant ................. : Room 308,International Business Building Hongfu Road,Nan Cheng District,DONG GUAN,China Test Firm ..................................... : Shenzhen CTL Testing Technology Co., Ltd. Address of Test Firm ................. : Floor 1-A, Baisha Technology Park, No.3011, Shahexi Road, Nanshan District, Shenzhen, China 518055 Test specification ....................... : Standard ...................................... : FCC Part 15.247: Operation within the bands 902-928 MHz, 2400-2483.5 MHz and 5725-5850 MHz. TRF Originator ............................. : Shenzhen CTL Testing Technology Co., Ltd. Master TRF .................................. : Dated 2011-01 Date of receipt of test item ........ : Jul 12, 2023 Date of Test Date ........................ : Jul 12, 2023-July 17 , 2023 Date of Issue .............................. : July 24, 2023 Result .......................................... : Pass Shenzhen CTL Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTL Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTL Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. V1.0 Page 2 of 34 Report No.: CTL2307111021-WF TEST REPORT Test Report No. : CTL2307111021-WF July 24, 2023 Date of issue Equipment under Test : LED Light Strip Sample No : CTL2307111021 Model /Type : ROY-0441TG Listed Models : ROY-0441TG ,ROY-0431TG，ROY-0432TG，ROY-0438TG， ROY-0439TG，ROY-0440TG Applicant : DONG GUAN YI ZHAN NETWORK TECHNOLOGY CO.,LTD. Address : Room 308,International Business Building Hongfu Road,Nan Cheng District,DONG GUAN,China Manufacturer : DONG GUAN YI ZHAN NETWORK TECHNOLOGY CO.,LTD. Address : Room 308,International Business Building Hongfu Road,Nan Cheng District,DONG GUAN,China. Test result Pass * * In the configuration tested, the EUT complied with the standards specified page 5. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the issuing testing laboratory. V1.0 Page 3 of 34 Report No.: CTL2307111021-WF ** Modified History ** Revisions Description Issued Data Report No. Remark Version 1.0 Initial Test Report Release 2023-07-24 CTL2307111021-WF Tracy Qi V1.0 Page 4 of 34 Report No.: CTL2307111021-WF Table of Contents Page 1. SUMMARY .................................................................................................................................................................... 5 1.1. TEST STANDARDS ........................................................................................................................................................... 5 1.2. TEST DESCRIPTION .............................................................................................................................................................. 5 1.3. TEST FACILITY ..................................................................................................................................................................... 6 1.4. STATEMENT OF THE MEASUREMENT UNCERTAINTY ..................................................................................................................... 6 2. GENERAL INFORMATION ............................................................................................................................................... 8 2.1. ENVIRONMENTAL CONDITIONS .............................................................................................................................................. 8 2.2. GENERAL DESCRIPTION OF EUT ............................................................................................................................................ 8 2.3. DESCRIPTION OF TEST MODES AND TEST FREQUENCY ................................................................................................................ 9 2.4. EQUIPMENTS USED DURING THE TEST ................................................................................................................................... 10 2.5. RELATED SUBMITTAL(S) / GRANT (S) .................................................................................................................................... 10 2.6. MODIFICATIONS ............................................................................................................................................................... 10 3. TEST CONDITIONS AND RESULTS ................................................................................................................................. 11 3.1. CONDUCTED EMISSIONS TEST ............................................................................................................................................. 11 3.2. RADIATED EMISSIONS AND BAND EDGE ........................................................................................…

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V1.0 Page 1 of 20 Report No.: CTL2307111021-WF 1. Bandwidth 1.1 OBW 1.1.1 Test Result Mode TX Type Frequency (MHz) ANT 99% Occupied Bandwidth (MHz) Verdict Result 2M SISO 2402 1 2.051 Pass 2440 1 2.054 Pass 2480 1 2.052 Pass V1.0 Page 2 of 20 Report No.: CTL2307111021-WF 1.1.2 Test Graph 2M_LCH_2402MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV V1.0 Page 3 of 20 Report No.: CTL2307111021-WF 2M_HCH_2480MHz_Ant1_NTNV V1.0 Page 4 of 20 Report No.: CTL2307111021-WF 1.2 6dB BW 1.2.1 Test Result Mode TX Type Frequency (MHz) ANT 6dB Bandwidth (MHz) Verdict Result Limit 2M SISO 2402 1 1.177 >=0.5 Pass 2440 1 1.180 >=0.5 Pass 2480 1 1.170 >=0.5 Pass V1.0 Page 5 of 20 Report No.: CTL2307111021-WF 1.2.2 Test Graph 2M_LCH_2402MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV V1.0 Page 6 of 20 Report No.: CTL2307111021-WF 2M_HCH_2480MHz_Ant1_NTNV V1.0 Page 7 of 20 Report No.: CTL2307111021-WF 2. Maximum Conducted Output Power 2.1 Power 2.1.1 Test Result Mode TX Type Frequency (MHz) Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit 2M SISO 2402 -4.09 <=30 Pass 2440 -3.01 <=30 Pass 2480 -3.33 <=30 Pass Note1: Antenna Gain: Ant1: 0.90dBi; V1.0 Page 8 of 20 Report No.: CTL2307111021-WF 2.1.2 Test Graph 2M_LCH_2402MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV V1.0 Page 9 of 20 Report No.: CTL2307111021-WF 2M_HCH_2480MHz_Ant1_NTNV V1.0 Page 10 of 20 Report No.: CTL2307111021-WF 3. Maximum Power Spectral Density 3.1 PSD 3.1.1 Test Result Mode TX Type Frequency (MHz) Maximum PSD (dBm/3kHz) Verdict ANT1 Limit 2M SISO 2402 -23.89 <=8 Pass 2440 -22.61 <=8 Pass 2480 -23.01 <=8 Pass Note1: Antenna Gain: Ant1: 0.90dBi; V1.0 Page 11 of 20 Report No.: CTL2307111021-WF 3.1.2 Test Graph 2M_LCH_2402MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV V1.0 Page 12 of 20 Report No.: CTL2307111021-WF 2M_HCH_2480MHz_Ant1_NTNV V1.0 Page 13 of 20 Report No.: CTL2307111021-WF 4. Unwanted Emissions In Non-restricted Frequency Bands 4.1 Ref 4.1.1 Test Result Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) 2M SISO 2402 1 -4.92 2440 1 -3.80 2480 1 -4.12 Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2013, the channel contains the maximum PSD level was used to establish the reference level. V1.0 Page 14 of 20 Report No.: CTL2307111021-WF 4.1.2 Test Graph 2M_LCH_2402MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV V1.0 Page 15 of 20 Report No.: CTL2307111021-WF 2M_HCH_2480MHz_Ant1_NTNV V1.0 Page 16 of 20 Report No.: CTL2307111021-WF 4.2 CSE 4.2.1 Test Result Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) Limit (dBm) Verdict 2M SISO 2402 1 -3.80 -23.80 Pass 2440 1 -3.80 -23.80 Pass 2480 1 -3.80 -23.80 Pass Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2013, the channel contains the maximum PSD level was used to establish the reference level. V1.0 Page 17 of 20 Report No.: CTL2307111021-WF 4.2.2 Test Graph 2M_LCH_2402MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV V1.0 Page 18 of 20 Report No.: CTL2307111021-WF 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV V1.0 Page 19 of 20 Report No.: CTL2307111021-WF 2M_HCH_2480MHz_Ant1_NTNV V1.0 Page 20 of 20 Report No.: CTL2307111021-WF

FCC ID: 2BB6L-0441TG Page 1 of 2 Report No.: CTL2307111021-WF Test Setup Photos of the EUT FCC ID: 2BB6L-0441TG Page 2 of 2 Report No.: CTL2307111021-WF