SY2-13541-13542-TRadio Control Fire Engine (13541, 43541), Radio Control Police Car (13542, 43542)

1234 A B C D 4321 D C B A DC 3.0V 2G4 Filtering Circuit ANT(2410-2475MHz) Block Diagram_TX Power Voltage-stabilizing circuit Ic Coding Embeded 2g4 U2 Oscillator frequency Master controller MCU U1 IR\Function Keys circuit 12MHz Y1

"I, an officer of KEENWAY INDUSTRIES LTD. do hereby authorize Intertek Testing Services (Mr. Terry Chan / Tim Lee / Herbert Wong / Kenneth Wong) to act on our behalf in front of the Federal Communications Commission with respect to all matters relating to certification of equipment under Part 15 and Part 18 of the FCC Rules until further notice." I further certify that no party (as defined in §1.2002(b) of CFR 47, 2004) to this application, including myself, is subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.,862. Dated this 28th day May of 2020 By Ginny Mok Sales Manageress Letter of Agency Signature Printed Name Title

INTERTEK TESTING SERVICE FCC ID: SY2-13541-13542-T Equipment Photographs (External) INTERTEK TESTING SERVICE FCC ID: SY2-13541-13542-T Equipment Photographs (External)

INTERTEK TESTING SERVICE FCC ID: SY2-13541-13542-T Equipment Photographs (Internal) INTERTEK TESTING SERVICE FCC ID: SY2-13541-13542-T Equipment Photographs (Internal) INTERTEK TESTING SERVICE FCC ID: SY2-13541-13542-T Equipment Photographs (Internal) INTERTEK TESTING SERVICE FCC ID: SY2-13541-13542-T Equipment Photographs (Internal)

Technical Description The Equipment Under Test (EUT), is a portable 2.4GHz Transmitter (Controller Unit) for a RC car. The sample supplied operated on 66 channels, normally at 2410 - 2475MHz. The channels are separated with 1MHz channel spacing. The EUT is powered by 2 x 1.5V AAA batteries. After switch on the EUT, the car will be moved forward or backward and turned left and right based on the switches pressed in the controller. Antenna Type: Internal, Integral antenna Antenna Gain: 0dBi Nominal rated field strength is 99.7dBμV/m at 3m (Peak), 59.2dBμV/m at 3m (Average) Maximum allowed production tolerance: +/- 3dB The brief circuit description is listed as follows: 1. U1 (13541) acts as MCU 2. U2 (13541-2.4G RF) acts as RF Module 3. Y1 acts as 12MHz Oscillator 4. L1, C3 and C5 act as antenna matching circuit

Analysis Report The Equipment Under Test (EUT), is a portable 2.4GHz Transmitter (Controller Unit) for a RC car. The sample supplied operated on 66 channels, normally at 2410 - 2475MHz. The channels are separated with 1MHz channel spacing. The EUT is powered by 2 x 1.5V AAA batteries. After switch on the EUT, the car will be moved forward or backward and turned left and right based on the switches pressed in the controller. Antenna Type: Internal, Integral antenna Antenna Gain: 0dBi Nominal rated field strength is 99.7dBμV/m at 3m (Peak), 59.2dBμV/m at 3m (Average) Maximum allowed production tolerance: +/- 3dB According to the KDB 447498: Based on the maximum average field strength of production tolerance was 62.2dBμV/m at 3m in frequency 2.475GHz. Thus, it below calculated field strength according to minimum SAR exclusion threshold level as follows: The worst case of SAR Exclusion Threshold Level: = 3.0 * (min. test separation distance, mm) / sqrt(freq. in GHz) = 3.0 * 5 / sqrt (2.483.5) mW = 9.52 mW According to the KDB 412172 D01: EIRP = [(FS*D) ^2*1000 / 30] Calculated Field Strength for 9.52mW is 105dBuV/m @3m Since maximum average field strength plus production tolerance < = 105dBuV/m @3m and antenna gain is > = 0.0dBi, it is concluded that maximum Conducted Power and Field Strength are well below the SAR Exclusion threshold level, so the EUT is considered to comply with SAR requirement without testing.

1234 A B C D 4321 D C B A VDD_Reg 1 V33_Reg 2 VSS_Reg 3 VPP 4 EPM 5 VCOIN 6 RSTB 7 Test 8 VSS_ADC 9 V33_ADC 10 VMIC 11 VADRef 12 AGC 13 OPI 14 MICOUT 15 MICN 16 MICP 17 IOB0 18 IOB1 19 IOB2 20 IOB3 21 VDD_IOB 22 IOA0 23 IOA1 24 IOA2 25 IOA3 26 IOA4 27 IOA5 28 IOA6 29 IOA7 30 VSS_IO 31 VDD_IOA 32 IOA8 33 IOA9 34 IOA10 35 IOA11 36 IOA12 37 IOA13 38 IOA14 39 IOA15 40 VSS_PDAC 41 AUDP 42 VDD_PDAC 43 AUDN 44 VSS_PDAC 45 VSS_DAC 46 VDD_DAC 47 ACIN 48 U1 13541 MCU C2 12pF Y1 12M C1 12pF ANT 33MM L1 1nH C3 0.5pF SW1 06602 SW3 06602 MIC BACK C21 104P VDD R6 3K3 C7 104P C6 332P VCOIN C8 104P RSTB C9 104P VARef R7 510K R8 10K C10 4.7uF AGC C11 472P C12 224P OPI MOut RSTB VCOIN VARef AGC OPI MOut R3 1K R5 3K R4 3K C13 224P C14 224P C16 10uF MIC 6*5 -62DB C15 1p VMIC MICP MICN VMIC MICN MICP +3V0 LED MIC Back VDD C18 104P C24 106P C26 104P MOSIMISO CLK MICFOR Back EPM VPP BT 3A*2 C22 470uF/10V F_Flag 1 CE 2 SPI_CSN 3 SPI_CLK 4 MOSI 5 MISO 6 PKT 7 VDD 8 MONIp 9 XTALO 10 XTALI 11 VSS 12 ANT 13 ANTB 14 VSS 15 VSS 16 U2 13541-2.4G RF CE CSN CLK MOSI MISO PKT C5 1.2pF FCC FCC SW2 06602 FOR FOR VDD R10 1R CE CSNPKTFCC LED IOB2IOB3 VDD VDD TEST: VCC ON/OFF SS12F44G5 R9 10R

2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong SAR, China. Telephone: (852) 2173 8888 Facsimile: (852) 2785 5487 www.intertek.com Intertek’s standard Terms and Conditions can be obtained at our website http://www.intertek.com/terms/. The test report only allows to be revised within the retention period unless further standard or the requirement was noticed. This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to permit copying or distribution of this report and then only in its entirety. Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material, product or service must first be approved in writing by Intertek. The observations and test results in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or service is or has ever been under an Intertek certification program. © 2017 Intertek Page 1 of 17 TEST REPORT Report No.: 20051313HKG-001 Keenway Industries Ltd. Application For Certification (Original Grant) FCC ID: SY2-13541-13542-T Transceiver Prepared and Checked by: Approved by: Signed On File Lee For Yiu, Florey Assistant Engineer Wong Kwok Yeung, Kenneth Senior Lead Engineer Date: June 05, 2020 TEST REPORT Keenway Industries Ltd. Intertek Report No: 20051313HKG-001 Page 2 of 17 GENERAL INFORMATION Grantee: Keenway Industries Ltd. Grantee Address: Room 1209-1212, New East Ocean Centre, 9 Science Museum Road, Tsim Sha Tsui East, Kowloon, Hong Kong Contact Person: Waiwa Chan Tel: (852) 2267 9686 Fax: N/A e-mail: N/A Manufacturer: Keenway Industries Ltd. Manufacturer Address: Room 1209-1212, New East Ocean Centre, 9 Science Museum Road, Tsim Sha Tsui East, Kowloon, Hong Kong Brand Name: KEENWAY Model: 13541 Additional Model: 43541, 13542, 34543 Type of EUT: Transceiver Description of EUT: Radio Control Fire Engine (13541, 43541), Radio Control Police Car (13542, 43542) Serial Number: N/A FCC ID: SY2-13541-13542-T Date of Sample Submitted: May 25, 2020 Date of Test: May 25, 2020 to June 05, 2020 Report No.: 20051313HKG-001 Report Date: June 05, 2020 Environmental Conditions: Temperature: +10 to 40°C Humidity: 10 to 90% Conclusion: Test was conducted by client submitted sample. The submitted sample as received complied with the 47 CFR Part 15 Certification. TEST REPORT Keenway Industries Ltd. Intertek Report No: 20051313HKG-001 Page 3 of 17 SUMMARY OF TEST RESULT Test Specification Reference Results Radiated Emission Radiated Emission on the Bandedge 15.249, 15.209 Pass Radiated Emission in Restricted Bands 15.205 Pass The equipment under test is found to be complying with the following standards: FCC Part 15, October 1, 2018 Edition Note: 1. The EUT uses a permanently attached antenna which, in accordance to section 15.203, is considered sufficient to comply with the pervisions of this section. 2. Pursuant to FCC part 15 Section 15.215(c), the 20 dB bandwidth of the emission was contained within the frequency band designated (mentioned as above) which the EUT operated. The effects, if any, from frequency sweeping, frequency hopping, other modulation techniques and frequency stability over excepted variations in temperature and supply voltage were considered. TEST REPORT Keenway Industries Ltd. Intertek Report No: 20051313HKG-001 Page 4 of 17 TABLE OF CONTENTS 1.0 GENERAL DESCRIPTION ................................................................................................ 5 1.1 Product Description ................................................................................................... 5 1.2 Related Submittal(s) Grants ....................................................................................... 5 1.3 Test Methodology ...................................................................................................... 5 1.4 Test Facility ................................................................................................................ 5 2.0 SYSTEM TEST CONFIGURATION ..................................................................................... 6 2.1 Justification ................................................................................................................ 6 2.2 EUT Exercising Software ............................................................................................. 6 2.3 Special Accessories .................................................................................................... 6 2.4 Measurement Uncertainty ......................................................................................... 6 2.5 Support Equipment List and Description .................................................................... 6 3.0 EMISSION RESULTS ....................................................................................................... 7 3.1 Field Strength Calculation .......................................................................................... 7 3.2 Radiated Emission Configuration Photograph ............................................................ 8 3.3 Radiated Emission Data ............................................................................................. 8 4.0 EQUIPMENT PHOTOGRAPHS ...................................................................................... 12 5.0 PRODUCT LABELLING .................................................................................................. 12 6.0 TECHNICAL SPECIFICATIONS ....................................................................................... 12 7.0 INSTRUCTION MANUAL .............................................…

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INTERTEK TESTING SERVICE FCC ID: SY2-13541-13542-T Configuration Photographs Worst-Case Radiated Emissions (Front View) INTERTEK TESTING SERVICE FCC ID: SY2-13541-13542-T Configuration Photographs Worst-Case Radiated Emissions (Back View)