2AX8T-LYDSTO006Robot Vacuum Cleaner

Guangdong Yimu Technology Co., Ltd. Declaration on model difference We the undersigned hereby confirm that these models are identical, and all models have the same RF module and antenna, PCB layout, schematics and component. Only the color and the models name are different. Production name Trademark FCC ID Model no. Robot Vacuum Cleaner N/A 2AX8T-LYDSTO006 YM-G2D-W01, YM-G2D-B01 Sincerely, zhuan Dai Manager Guangdong Yimu Technology Co., Ltd. Room 201, Building 1, No.1, Dongsan Lane, Hengjiang, Fushan, Liaobu Town, Dongguan, Guangdong, China

Guangdong Yimu Technology Co., Ltd. 2022-11-09 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize DongGuan Anci Electronic Technology Co., Ltd. to 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). This agreement expires one year from the current date. Sincerely, zhuan Dai Manager Guangdong Yimu Technology Co., Ltd. Room 201, Building 1, No.1, Dongsan Lane, Hengjiang, Fushan, Liaobu Town, Dongguan, Guangdong, China

Guangdong Yimu Technology Co., Ltd. 2022-11-09 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (EUT Name: Robot Vacuum Cleaner /Model: YM-G2D-W01, YM-G2D-B01 /FCC ID: 2AX8T-LYDSTO006) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the (Block Diagram ,Operational Description,Schematics) required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, zhuan Dai Manager Guangdong Yimu Technology Co., Ltd. Room 201, Building 1, No.1, Dongsan Lane, Hengjiang, Fushan, Liaobu Town, Dongguan, Guangdong, China

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OTA TEST REPORT Applicant Espressif Systems Product ESP ANT B Model ESP ANT B Report No. Y1806A0621-T1V1 Issue Date December 21, 2018 TA Technology (Shanghai) Co., Ltd. tested the above equipment in accordance with the requirements in ANSI/IEEE Std 149-2008. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. Performed by: Jiangpeng Lan Approved by: Kai Xu TA Technology (Shanghai) Co., Ltd. No.145, Jintang Rd, Tangzhen Industry Park, Pudong Shanghai, China TEL: +86‐021‐50791141/2/3 FAX: +86‐021‐50791141/2/3‐8000 OTA Test Report Report No: Y1806A0621-T1V1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 2 of 15 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. TABLE OF CONTENTS 1. General Information ....................................................................................................................... 3 1.1. Notes of the Test Report ................................................................................................... 3 1.2. Test facility ........................................................................................................................ 3 1.3. Testing laboratory .............................................................................................................. 4 1.4. Laboratory Environment .................................................................................................... 4 2. General Description of Equipment under Test ............................................................................... 5 2.1. Applicant Information ......................................................................................................... 5 2.2. Manufacturer Information .................................................................................................. 5 2.3. Information of EUT ............................................................................................................ 5 2.4. Test Date ........................................................................................................................... 5 2.5. Applied Standards ............................................................................................................. 6 3. Test Conditions .............................................................................................................................. 7 3.1. Test Configuration ............................................................................................................. 7 3.2. Test Measurement ............................................................................................................. 7 4. Test Results ................................................................................................................................... 8 4.1. Gain and Efficiency ............................................................................................................ 8 4.2. Voltage Standing Wave Ratio (VSWR) .............................................................................. 9 4.3. Antenna S11 .................................................................................................................... 10 5. Test Equipment List ..................................................................................................................... 11 APPENDIX A: 2-D Pattern Plots ............................................................................................................. 12 APPENDIX B: The EUT Appearance and Test Configuration .................................................................. 14 B.1 EUT Appearance ................................................................................................................... 14 B.2 Test Configuration ................................................................................................................. 15 OTA Test Report Report No: Y1806A0621-T1V1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 3 of 15 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. 1. General Information 1.1. Notes of the Test Report This report shall not be reproduced in full or partial, without the written approval of TA technology (shanghai) co., Ltd.The results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein .Measurement Uncertainties were not taken into account and are published for informational purposes only. This report is written to support regulatory compliance of the applicable standards stated above. This report must not be used by the client to claim product certification, approval, or endorsement by any government agencies. 1.2. Test facility CNAS (accreditation number:L2264) TA Technology (Shanghai) Co., Ltd. has obtained the accreditation of China National Accreditation Service for Conformity Assessment (CNAS). FCC (Designation number: CN1179, Test Firm Registration Number: 446626) TA Technology (Shanghai) Co., Ltd. has been listed on the US Federal Communications Commission list of test facilities recognized to perform electromagnetic emissions measurements. IC (recognition number is 8510A) TA Technology (Shanghai) Co., Ltd. has been listed by industry Canada to perform electromagnetic emission measurement. A2LA (Certificate Number: 3857.01) TA Technology (Shanghai) Co., Ltd. has been listed by American Association for Laboratory Accreditation to perform electromagnetic emission measurement. OTA Test Report Report No: Y1806A0621-T1V1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 4 of 15 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. 1.3. Testing laboratory Company: TA Technology (Shanghai) Co., Ltd. Address: No.145, Jintang Rd, Tangzhen Industry Park, Pudong Ci…

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RF EXPOSURE EVALUATION EUT Specification EUT Robot Vacuum Cleaner Model Number YM-G2D-W01 FCC ID 2AX8T-LYDSTO006 Antenna gain (Max) 3.42dBi Operation Frequency 2.412GHz ~ 2.462GHz Input Rating 19V0.6A Max. output power 802.11b: 17.81dBm 802.11g: 16.25dBm 802.11n(HT20): 16.84dBm 802.11n(HT40): 15.46dBm Test Requirement: According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density(mW/cm 2 ) Average Time (A) Limits for Occupational/Control Exposures 300-1500 -- -- F/300 6 1500-100000 -- -- 5 6 (B) Limits for General Population/Uncontrol Exposures 300-1500 -- -- F/1500 6 1500-100000 -- -- 1 30 11.1 Friis transmission formula: Pd= (Pout*G)\ (4*pi*R 2 ) Where Pd= Power density in mW/cm 2 Pout=output power to antenna in mW G= Numeric gain of the antenna relative to isotropic antenna Pi=3.1416 R= distance between observation point and center of the radiator in cm=20cm Pd the limit of MPE, 1mW/cm 2 . If we know the maximum gain of the nd total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. 11.2 Measurement Result Antenna gain: 3.42dBi WIFI: Signature: Tiger Xu Date: 2022-11-02 Operatin g Mode Test Channel Tune up tolerance (dBm) Max tune up conducte d power(dB m) Output Peak power (mW) Ant. Gain (dBi) Ant. Gain (numeric) Power density at 20cm (mW/ cm2 ) Power density Limits (mW/ cm2 ) 802.11b 1 16±1 17 50.119 3.42 2.198 0.021914 1 6 18±1 19 79.433 3.42 2.198 0.034732 1 11 17±1 18 63.096 3.42 2.198 0.027589 1 802.11g 1 14±1 15 31.623 3.42 2.198 0.013827 1 6 16±1 17 50.119 3.42 2.198 0.021914 1 11 16±1 17 50.119 3.42 2.198 0.021914 1 802.11n (HT20) 1 14±1 15 31.623 3.42 2.198 0.013827 1 6 17±1 16 39.811 3.42 2.198 0.017407 1 11 16±1 16 39.811 3.42 2.198 0.017407 1 802.11n (HT40) 3 13±1 14 25.119 3.42 2.198 0.010983 1 6 14±1 15 31.623 3.42 2.198 0.013827 1 9 15±1 16 39.811 3.42 2.198 0.017407 1

TRF No.: 01-R001-3A-WIFI TRF Originator: GTG TRF Date: 2022-06-29 Web: www.gtggroup.com E-mail: [email protected] Tel.: 86-400 755 8988 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 15 SUBPART C REQUIREMENT OF Robot Vacuum Cleaner Model No.: YM-G2D-W01, YM-G2D-B01 FCC ID: 2AX8T-LYDSTO006 Trademark: N/A Report No.: E01A22100198F00101 Issue Date: November 01, 2022 Prepared for Guangdong Yimu Technology Co., Ltd. Room 201, Building 1, No.1, Dongsan Lane, Hengjiang, Fushan, Liaobu Town, Dongguan, Guangdong, China Prepared by Dong Guan Anci Electronic Technology Co., Ltd. 1-2 Floor, Building A, No.11, Headquarters 2 Road, Songshan, Lake Hi-tech Industrial Development Zone, Dongguan City, Guangdong Pr., China. This report shall not be reproduced, except in full, without the written approval of Dong Guan Anci Eleaactronic Technology Co., Ltd. Page 2 of 76 Report No.: E01A22100198F00101 TRF No.: 01-R001-3A-WIFI Global Testing , Great Quality. VERIFICATION OF COMPLIANCE Applicant: Guangdong Yimu Technology Co., Ltd. Room 201, Building 1, No.1, Dongsan Lane, Hengjiang, Fushan, Liaobu Town, Dongguan, Guangdong, China Manufacturer: Guangdong Yimu Technology Co., Ltd. Room 201, Building 1, No.1, Dongsan Lane, Hengjiang, Fushan, Liaobu Town, Dongguan, Guangdong, China Product Description: Robot Vacuum Cleaner Trade Mark: N/A Model Number: YM-G2D-W01, YM-G2D-B01 We hereby certify that: The above equipment was tested by Dong Guan Anci Electronic Technology Co., Ltd. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10-2013 and the energy emitted by the sample EUT tested as described in this report is in compliance with conducted and radiated emission limits of FCC Rules Part 15.247(2022). Date of Test : October 24, 2022 to October 30, 2022 Prepared by : Duke Liu/Editor Reviewer & Authorized Signer : Tiger Xu/ Supervisor Page 3 of 76 Report No.: E01A22100198F00101 TRF No.: 01-R001-3A-WIFI Global Testing , Great Quality. Modified Information Version Summary Revision Date Report No. Ver.1.0 Original Report / E01A22100198F00101 Page 4 of 76 Report No.: E01A22100198F00101 TRF No.: 01-R001-3A-WIFI Global Testing , Great Quality. Table of Contents 1. GENERAL INFORMATION ....................................................................................................................................... 6 1.1 PRODUCT DESCRIPTION ........................................................................................................................................ 6 1.2 TEST METHODOLOGY ............................................................................................................................................ 7 2. SYSTEM TEST CONFIGURATION .......................................................................................................................... 8 2.1 EUT CONFIGURATION ........................................................................................................................................... 8 2.2 EUT EXERCISE ...................................................................................................................................................... 8 2.3 TEST PROCEDURE ................................................................................................................................................. 8 2.4 CONFIGURATION OF TESTED SYSTEM ................................................................................................................... 8 3. DESCRIPTION OF TEST MODES ......................................................................................................................... 10 4. SUMMARY OF TEST RESULTS ............................................................................................................................ 18 5. TEST FACILITY ......................................................................................................................................................... 19 6. CONDUCTED EMISSIONS TEST .......................................................................................................................... 20 6.1 MEASUREMENT PROCEDURE: ............................................................................................................................. 20 6.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ..................................................................................... 20 6.3 MEASUREMENT EQUIPMENT USED:..................................................................................................................... 20 6.4 CONDUCTED EMISSION LIMIT .................................................................................................................................... 20 6.5 MEASUREMENT RESULT: ..................................................................................................................................... 21 7. RADIATED EMISSION TEST .................................................................................................................................. 23 7.1 MEASUREMENT PROCEDURE .............................................................................................................................. 23 7.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ..................................................................................... 24 7.3 MEASUREMENT EQUIPMENT USED ...................................................................................................................... 25 7.4 RADIATED EMISSION LIMIT................................................................................................................................... 26 7.5 MEASUREMENT RESULT ...................................................................................................................................... 27 8. 6DB BANDWIDTH TEST ........................…

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