2A5WJ-YED1908RC Car

N O T E : T h i s e q u i p m e n t h a s b e e n t e s t e d a n d f o u n d t o c o m p l y w i t h t h e l i m i t s f o r a C l a s s B d i g i t a l d e v i c e , p u r s u a n t t o p a r t 1 5 o f t h e F C C R u l e s . T h e s e l i m i t s a r e d e s i g n e d t o p r o v i d e r e a s o n a b l e p r o t e c t i o n a g a i n s t h a r m f u l i n t e r f e r e n c e i n a r e s i d e n t i a l i n s t a l l a t i o n . T h i s e q u i p m e n t g e n e r a t e s , u s e s a n d c a n r a d i a t e r a d i o f r e q u e n c y e n e r g y a n d , i f n o t i n s t a l l e d a n d u s e d i n a c c o r d a n c e w i t h t h e i n s t r u c t i o n s , m a y c a u s e h a r m f u l i n t e r f e r e n c e t o r a d i o c o m m u n i c a t i o n s . H o w e v e r , t h e r e i s n o g u a r a n t e e t h a t i n t e r f e r e n c e w i l l n o t o c c u r i n a p a r t i c u l a r i n s t a l l a t i o n . I f t h i s e q u i p m e n t d o e s c a u s e h a r m f u l i n t e r f e r e n c e t o r a d i o o r t e l e v i s i o n r e c e p t i o n , w h i c h c a n b e d e t e r m i n e d b y t u r n i n g t h e e q u i p m e n t o f f a n d o n , t h e u s e r i s e n c o u r a g e d t o t r y t o c o r r e c t t h e i n t e r f e r e n c e b y o n e o r m o r e o f t h e f o l l o w i n g m e a s u r e s : - R e o r i e n t o r r e l o c a t e t h e r e c e i v i n g a n t e n n a . - I n c r e a s e t h e s e p a r a t i o n b e t w e e n t h e e q u i p m e n t a n d r e c e i v e r . - C o n n e c t t h e e q u i p m e n t i n t o a n o u t l e t o n a c i r c u i t d i f f e r e n t f r o m t h a t t o w h i c h t h e r e c e i v e r i s c o n n e c t e d . - C o n s u l t t h e d e a l e r o r a n e x p e r i e n c e d r a d i o / T V t e c h n i c i a n f o r h e l p . C h a n g e s o r m o d i f i c a t i o n s n o t e x p r e s s l y a p p r o v e d b y t h e p a r t y r e s p o n s i b l e f o r c o m p l i a n c e c o u l d v o i d t h e u s e r ' s a u t h o r i t y t o o p e r a t e t h e e q u i p m e n t .

GUANGDONG YIERDA INTELLIGENT & TECHNICAL INDUSTRIAL COMPANY LIMITED WEST OF WULITING ROAD, XIAJIAO INDUSTRIAL ZONE, CHENGHAI, SHANTOU, GUANGDONG, CHINA Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 05-23-2023 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2A5WJ-YED1908 [GUANGDONG YIERDA INTELLIGENT & TECHNICAL INDUSTRIAL COMPANY LIMITED ] (“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. Sincerely, (Applicant signature) (Jessica Li)

GUANGDONG YIERDA INTELLIGENT & TECHNICAL INDUSTRIAL COMPANY LIMITED WEST OF WULITING ROAD, XIAJIAO INDUSTRIAL ZONE, CHENGHAI, SHANTOU, GUANGDONG, CHINA Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 05-23-2023 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2A5WJ-YED1908 [GUANGDONG YIERDA INTELLIGENT & TECHNICAL INDUSTRIAL COMPANY LIMITED] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Jessica Li)

GUANGDONG YIERDA INTELLIGENT & TECHNICAL INDUSTRIAL COMPANY LIMITED WEST OF WULITING ROAD, XIAJIAO INDUSTRIAL ZONE, CHENGHAI, SHANTOU, GUANGDONG, CHINA Agent Authorization Company: GUANGDONG YIERDA INTELLIGENT & TECHNICAL INDUSTRIAL COMPANY LIMITED Address: WEST OF WULITING ROAD, XIAJIAO INDUSTRIAL ZONE, CHENGHAI, SHANTOU, GUANGDONG, CHINA Product Name: RC Car Model Number(s): YED1908 Product Description: RC Car We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2023-05-24 Name: Jessica Li Company: GUANGDONG YIERDA INTELLIGENT & TECHNICAL INDUSTRIAL COMPANY LIMITED

GUANGDONG YIERDA INTELLIGENT & TECHNICAL INDUSTRIAL COMPANY LIMITED WEST OF WULITING ROAD, XIAJIAO INDUSTRIAL ZONE, CHENGHAI, SHANTOU, GUANGDONG, CHINA Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2023-05-23 Subject; Request for Confidentiality FCC ID: 2A5WJ-YED1908 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 Parts List Operational Description Tune-up Procedure 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 Contact person: Jessica Li

Report No.: AGC157052305161AP02 Page 1 of 4 EXTERNAL PHOTOS All VIEW OF EUT TOP VIEW OF EUT Report No.: AGC157052305161AP02 Page 2 of 4 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC157052305161AP02 Page 3 of 4 BACK VIEW OF EUT LEFT VIEW OF EUT Report No.: AGC157052305161AP02 Page 4 of 4 RIGHT VIEW OF EUT ****************************************End of Report*************************************

FCC ID :2A5WJ-YED1908 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Label size: 2cm*4cm

Report No.: AGC157052305161AP02 Page 1 of 2 INTERNAL PHOTOS OPEN VIEW OF EUT (FIGURE 1) ANTENNA CLOSE-UP PHOTO-1 2.4G Antenna 33mm Report No.: AGC157052305161AP02 Page 2 of 2 INTERNAL VIEW OF EUT (FIGURE 1) ****************************************End of Report*************************************

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION FCC ID 2A5WJ-YED1908 Product Description RC Car Model Name YED1908 Frequency Band (Operating) WLAN: 2.412GHz ~ 2.462GHz WLAN: 5.18GHz ~ 5.32GHz / 5.50GHz ~ 5.70GHz WLAN: 5.745GHz ~ 5825GHz Others (SRD: 2405.5MHz to 2475.5MHz) Device Category Portable (<20cm separation) Mobile (>20cm separation) Others: Antenna Diversity Single antenna Multiple antennas Tx diversity Rx diversity Tx/Rx diversity Max. Output Power 75.04m(average)@3m Antenna Gain 0dBi Minimum Assessment Distance 5mm Evaluation Applied MPE Evaluation SAR Evaluation Evaluation Result Pass 2. PORTABLE DEVICE EVALUATION METHOD AND LIMIT Following FCC KDB 447498 D01 “General SAR test exclusion guidance” The corresponding SAR Exclusion Threshold condition, listed below: 1) 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)] [if(GHz)] s 3.0 for 1-g SAR and ñ 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. 2) At 100 MHz to 6 GHz and for test separation distances > 50 mm, the SAR test exclusion threshold is determined according to the following: a) [Threshold at 50 mm in step 1) + (test separation distance - 50mm) ( f(MHz)/150)] mW, at 100MHz to 1500 MHz; b) [Threshold at 50 mm in step 1) + (test separation distance - 50 mm)-10] mW at > 1500 MHz and ≤6 GHz; 3) At frequencies below 100 MHz, the following may be considered for SAR test exclusion. a) The threshold at the corresponding test separation distance at 100 MHz in step 2) is multiplied by [1 + log(100/f(MHz))] for test separation distances > 50 mm and < 200 mm. b) The threshold determined by the equation in a) for 50 mm and 100 MHz is multiplied by 1/2 for test separation distances ñ 50 mm. c) SAR measurement procedures are not established below 100 MHz. When SAR test exclusion cannot be applied, a KDB inquiry is required to determine SAR evaluation requirements for any test results to be acceptable. 3. MOBILE DEVICE EVALUATION METHOD AND LIMIT Human exposure to RF emissions from mobile devices (47 CFR §2.1091) may be evaluated based on the MPE limits adopted by the FCC for electric and magnetic field strength and/or power density, as appropriate, since exposures are assumed to occur at distances of 20 cm or more from persons. LIMITS FOR GENERAL POPULATION / UNCONTROLLED EXPOSURE Frequency Range (MHz) E-field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Time |E| 2 , |H| 2 or S (Minutes) 0.3 -- 1.34 614 1.63 (100)* 30 1.34 -- 30 824/f 2.19/f (180/f 2 )* 30 30 -- 300 27.5 0.073 0.2 30 300 -- 1500 -- -- f/1500 30 1500 -- 100,000 -- -- 1.0 30 *Note: 1. f= Frequency in MHz * Plane-wave Equivalent Power Density 2. The averaging time for General Population/Uncontrolled exposure to fixed transmitters is not applicable for mobile and portable transmitters. See 47 CFR §§2.1091 and 2.1093 on source-based time-averaging requirement for mobile and portable transmitters. S=PG/4πR² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna 4. MEASUREMENT RESULT Test Mode Channel Frequency (MHz) Field Strength (dBuV/m@3m) Max Output power (mW) Calculati on Value (Note 1) Threshold Value GFSK SRD 2405.5 75.04 0.009 0.003 3.0 Note 1: Calculation Value =[(max. power of channel, mW)/(min. test separation distance, mm)] ·[√f(GHz)]. Fox example: 0.009/5*√2.4055=0.003≤ 3.0 Note 2:Max Power (dBm) = Field Strength of Fundamental (dBuV/m@3m)-95.23 Note 3:Max Power (mW) = 10^ (Max power (dBm)/10) According to KDB447498 D01 V06, threshold at which no SAR required is ≤3.0 for 1-g SAR, separation distance is 5mm, and no simultaneous SAR measurement is required.

Page 1 of 29 FCC Test Report Report No.: AGC157052305161FE04 FCC ID : 2A5WJ-YED1908 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : RC Car BRAND NAME : N/A MODEL NAME : YED1908 APPLICANT : GUANGDONG YIERDA INTELLIGENT & TECHNICAL INDUSTRIAL COMPANY LIMITED DATE OF ISSUE : May 22, 2023 STANDARD(S) TEST PROCEDURE(S) : FCC Part 15 Rules REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC157052305161FE04 Page 2 of 29 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / May 22, 2023 Valid Initial Release Report No.: AGC157052305161FE04 Page 3 of 29 TABLE OF CONTENTS 1. VERIFICATION OF CONFORMITY .................................................................................................................. 4 2. GENERAL INFORMATION .............................................................................................................................. 5 2.1. PRODUCT DESCRIPTION ........................................................................................................................ 5 2.2. TABLE OF CARRIER FREQUENCY .......................................................................................................... 6 3. MEASUREMENT UNCERTAINTY ................................................................................................................... 7 4. DESCRIPTION OF TEST MODES ................................................................................................................... 8 5. SYSTEM TEST CONFIGURATION .................................................................................................................. 9 5.1. CONFIGURATION OF EUT SYSTEM ........................................................................................................ 9 5.2 EQUIPMENT USED IN TESTED SYSTEM ................................................................................................. 9 5.3. SUMMARY OF TEST RESULTS ................................................................................................................ 9 6. TEST FACILITY .............................................................................................................................................. 10 7. RADIATED EMISSION ................................................................................................................................... 11 7.1TEST LIMIT ................................................................................................................................................ 11 7.2. MEASUREMENT PROCEDURE ............................................................................................................. 12 7.3. TEST SETUP............................................................................................................................................ 14 7.4. TEST RESULT .......................................................................................................................................... 15 8. BAND EDGE EMISSION ................................................................................................................................ 21 8.1TEST LIMIT ................................................................................................................................................ 21 8.2. MEASUREMENT PROCEDURE ............................................................................................................. 21 8.3 TEST SETUP............................................................................................................................................. 21 8.4 TEST RESULT ........................................................................................................................................... 21 9. 20DB BANDWIDTH ........................................................................................................................................ 26 9.1. MEASUREMENT PROCEDURE ............................................................................................................. 26 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 26 9.3. MEASUREMENT RESULTS .................................................................................................................... 27 APPENDIX A: PHOTOGRAPHS OF TEST SETUP .......................................................................................... 29 APPENDIX B: PHOTOGRAPHS OF THE EUT ................................................................................................. 29 Report No.: AGC157052305161FE04 Page 4 of 29 1. VERIFICATION OF CONFORMITY Applicant GUANGDONG YIERDA INTELLIGENT & TECHNICAL INDUSTRIAL COMPANY LIMITED Address WEST OF WULITING ROAD, XIAJIAO INDUSTRIAL ZONE, CHENGHAI, SHANTOU, GUANGDONG, CHINA Manufacturer GUANGDONG YIERDA INTELLIGENT & TECHNICAL INDUSTRIAL COMPANY LIMITED Address WEST OF WULITING ROAD, XIAJIAO INDUSTRIAL ZONE, CHENGHAI, SHANTOU, GUANGDONG, CHINA Factory GUANGDONG YIERDA INTELLIGENT & TECHNICAL INDUSTRIAL COMPANY LIMITED Address WEST OF WULITING ROAD, XIAJIAO INDUSTRIAL ZONE, CHENGHAI, SHANTOU, GUANGDONG, CHINA Product Designation RC Car Brand Name N/A Test Model YED1908 Date of receipt of test item May 16, 2023 Date of test May 16, 2023 to May 22, 2023 Deviation No any deviation from the test method Condition of Test Sample Normal Test Result Pass Report Template AGCRT-US-2.4G/RF We hereby certify that: The above equipment was tested by Attestation of Global Compliance (Shenzhen) 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 radiated emission limits of FCC Rules Part 15.249. Prepared By Alan Duan (Project Engineer) May 22, 2023 Revie…

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Report No.: AGC157052305161AP01 Page 1 of 2 TEST SETUP PHOTOS RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz Report No.: AGC157052305161AP01 Page 2 of 2 RF CONDUCTED TEST SETUP ****************************************End of Report*************************************