2A8V2-WT-F61BRC2 remote control

Shenzhen Weiteshijia Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2023.3.31 Subject; Request for Confidentiality FCC ID:2A8V2-WT-F61B To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description Tune-up Procedure Part list In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Mars zhang/Shenzhen Weiteshijia Technology Co., Ltd. Title:Manger

Page 1 of 3 Report No.: LGT23C035 Appendix - External Photographs of EUT Constructional Details FCC ID: 2A8V2-WT-F61B Model: WT-F61B Photo 1 Photo 2 Page 2 of 3 Report No.: LGT23C035 Photo 3 Photo 4 Page 3 of 3 Report No.: LGT23C035 Photo 5 Photo 6

Label RC2 remote control Model: WT-F61B FCC ID: 2A8V2-WT-F61B Manufacturer: Sheen Weiteshijia Technology Co., Ltd. 101-503, building D, Duoli industrial plant, No.9 Jinlong 1st Road, Baolong community, Baolong street, Longgang District, Shenzhen China Importer:XXXXXXXXX Address:XXXXXXXXXXXXXXXXX

Page 1 of 3 Report No.: LGT23C035 Appendix - Internal Photographs of EUT Constructional Details FCC ID: 2A8V2-WT-F61B Model: WT-F61B Photo 1 Photo 2 Page 2 of 3 Report No.: LGT23C035 Photo 3 Photo 4 Page 3 of 3 Report No.: LGT23C035 Photo 5

FCC ID:2A8V2-WT-F61B RF EXPOSURE EVALUATION METHOD SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. 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 The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. FCC ID:2A8V2-WT-F61B The Worst Case Mode 433.920MHz Detector PEAK field strength 73.76dBuV/m(-21.44dBm) Remark: The worst case gain of the antenna is 0dBi. 0dBi logarithmic terms convert to numeric result is nearly 1 0.43392 -21.44 -21 0.007943282 0.0010 3 Limit Maximum Peak Conducted Output Power (dBm) frequency (GHz) Tune up Power (dBm) Tune up Power (mW) Result Threshold at which no SAR required is 0.0010≤ 3.0 for 1-g SAR, Separation distance is 5mm.

Antenna Spec. Frequency Total(dBi) 433 MHz 0 Model: WL1527SC Brand: N/A Type: PCB Max Peak Gain: 0dBi Frequency Range: 433MHz All measurements were performed radiated and therefore additional antenna gain documentation is not required 25mm 0.5mm 3.2mm 15.2mm Typical Free Space Radiation Pattern 3D Radiation Pattern Typical Free Space Radiation Pattern 2D Radiation Pattern PHI=0 PHI=90 THETA=90

The test report is effective only with both signature and specialized stamp. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report only apply to the tested sample. Guangde Ledup Enterprise,Inc. Tel: 0755-89668180 E-mail:[email protected] Web: www.lgt-cert.com NO566 Jingtang Road, Guangde Economic Development Zone, Guangde, Anhui, China RF TEST REPORT Product Name: RC2 remote control Model Name: WT-F61B FCC ID: 2A8V2-WT-F61B Issued For : Shenzhen Weiteshijia Technology Co., Ltd. 101-503, building D, Duoli industrial plant, No.9 Jinlong 1st Road, Baolong community, Baolong street, Longgang District, Shenzhen China Issued By : Shenzhen LGT Test Service Co., Ltd. Room 205, Building 13, Zone B, Chen Hsong Industrial Park, No.177 Renmin West Road, Jinsha Community, Kengzi Street, Pingshan New District, Shenzhen, China Report Number: LGT23C036RF01 Sample Received Date: Mar. 20, 2023 Date of Test: Mar. 20, 2023 – Mar. 30, 2023 Date of Issue: Mar. 30, 2023 Report No.: LGT23C036RF01 Page 2 of 31 TEST REPORT CERTIFICATION Applicant Shenzhen Weiteshijia Technology Co., Ltd. Address 101-503, building D, Duoli industrial plant, No.9 Jinlong 1st Road, Baolong community, Baolong street, Longgang District, Shenzhen China Manufacturer Shenzhen Weiteshijia Technology Co., Ltd. Address 101-503, building D, Duoli industrial plant, No.9 Jinlong 1st Road, Baolong community, Baolong street, Longgang District, Shenzhen China Factory Shenzhen Weiteshijia Technology Co., Ltd. Address 101-503, building D, Duoli industrial plant, No.9 Jinlong 1st Road, Baolong community, Baolong street, Longgang District, Shenzhen China Product Name RC2 remote control Trademark N/A Model Name WT-F61B Sample Status: Normal APPLICABLE STANDARDS STANDARD TEST RESULTS FCC Part 15.231, Subpart C ANSI C63.10-2013 PASS Prepared by: Approved by: Zane Shan Vita Li Engineer Technical Director Report No.: LGT23C036RF01 Page 3 of 31 TABLE OF CONTENTS Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 9 2.3 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 9 2.4 EQUIPMENTS LIST 10 3. EMC EMISSION TEST 11 3.1 CONDUCTED EMISSION MEASUREMENT 11 3.2 TEST PROCEDURE 12 3.3 TEST SETUP 12 3.4 TEST RESULTS 12 4. RADIATED EMISSION MEASUREMENT 13 4.1 RADIATED EMISSION LIMITS 13 4.2 TEST PROCEDURE 15 4.3 DEVIATION FROM TEST STANDARD 15 4.4 TEST SETUP 16 4.5 EUT OPERATING CONDITIONS 16 4.6 TEST RESULTS 17 4.7 FIELD STRENGTH CALCULATION 18 5. BANDWIDTH TEST 23 5.1 LIMIT 23 5.2 TEST REQUIREMENTS 23 5.3 TEST PROCEDURE 23 5.4 TEST SETUP 23 5.5 EUT OPERATION CONDITIONS 23 5.6 TEST RESULTS 24 6. DUTY CYCLE 25 6.1 TEST PROCEDURE 25 6.2 TEST SETUP 25 6.3 EUT OPERATION CONDITIONS 25 6.4 TEST RESULTS 26 7. AUTOMATICALLY DEACTIVATE 28 Report No.: LGT23C036RF01 Page 4 of 31 TABLE OF CONTENTS Page 7.1 STANDARD REQUIREMENT 28 7.2 TEST PROCEDURE 28 8. ANTENNA REQUIREMENT 30 8.1 STANDARD REQUIREMENT 30 8.2 EUT ANTENNA 30 APPENDIX I - PHOTOS OF TEST SETUP 31 Report No.: LGT23C036RF01 Page 5 of 31 Revision History Rev. Issue Date Contents 00 Mar. 30, 2023 Initial Issue Report No.: LGT23C036RF01 Page 6 of 31 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part 15.231, Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission N/A -- 15.205(a)/15.209/ 15.231.(b) Radiated Spurious Emission PASS -- 15.231(a)(1)/ 15.231(b)(2) Transmission requirement PASS -- 15.231(C) 20 dB Bandwidth PASS -- 15.203 Antenna Requirement PASS -- NOTE: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2013. Report No.: LGT23C036RF01 Page 7 of 31 1.1 TEST FACTORY Company Name: Shenzhen LGT Test Service Co., Ltd. Address: Room 205, Building 13, Zone B, Chen Hsong Industrial Park, No.177 Renmin West Road, Jinsha Community, Kengzi Street, Pingshan New District, Shenzhen, China Accreditation Certificate A2LA Certificate No.: 6727.01 FCC Registration No.: 746540 CAB ID: CN0136 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. Parameter Uncertainty RF Output Power, Conducted ±0.71dB Unwanted Emission, Conducted ±0.63dB Conducted emission ±2.80dB All Emissions, Radiated (0.009-30MHz) ±2.16dB All Emissions, Radiated (30MHz-1GHz) ±4.40dB All Emissions, Radiated (1GHz-18GHz) ±5.49dB Report No.: LGT23C036RF01 Page 8 of 31 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT Product Name RC2 remote control Trademark N/A Model Name WT-F61B Series Model N/A Model Difference N/A Frequency band 433.920MHz Power Rating Input: DC 3V Battery: DC 3.7V/10000mAh Modulation Type OOK Hardware version N/A Software version N/A Connecting I/O Port(s) N/A Note: 1. For a more detailed features description, please refer to the manufacturer’s specifications orthe User Manual. 2. Table for filed Antenna Ant. Brand Model Name Antenna Type Connector Gain (dBi) NOTE 1 N/A WL1527SC PCB Antenna N/A 0 Antenna Note: The antenna information refer the manufacturer provide report, applicable only to the tested sample identified in the report. Report No.: LGT23C036RF01 Page 9 of 31 2.2 DESCRIPTION OF THE TEST MODES To investigate the maximum EMI emission characteristics generates from EUT, the test system was pre-scanning tested base on the consideration of following EUT operation mode or test configuration mode which possible have effect on EMI emission level. Each of these EUT operation mode(s) or test configuration mode(s) mentioned above was evaluated respectively. Pretest Mode Description Mode 1 TX Mode For Radiated Emission Final Test Mode Description Mode 1 TX Mode 2.3 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS The EUT has been te…

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Page 1 of 1 Report No.: LGT23C036 Appendix - Test Setup photos FCC ID: 2A8V2-WT-F61B Model: WT-F61B Radiated Spurious Emission Test Setup Photo - Below 1GHz Radiated Spurious Emission Test Setup Photo - Above 1GHz