2BTB6J71KEYL0031KEYLESS Remote Controller

Smart keyless Function Specification Program keyless Part Name Part Number Customer Part Number Versio V1.3 Date 2023-10-11 D/N Page 1 / 17 Size A4 Smart Keyless Function Specification Smart keyless Function Specification Program keyless Part Name Part Number Customer Part Number Versio V1.3 Date 2023-10-11 D/N Page 2 / 17 Size A4 1 Basic Information Overview This function specification aims to organize and summarize customer input data for smart keyless controllers and remote controls. This function specification requires final confirmation from the customer. Once this function specification is confirmed by both parties, it will serve as the primary basis for constraining product functions. Any changes must be documented with detailed historical records. Smart Keyless Configuration OE Numbers : Customer Product No. Customer NO. WellySun Product No. J71.KEYL003.0 J71.KEYL003.1 Smart keyless Function Specification Program keyless Part Name Part Number Customer Part Number Versio V1.3 Date 2023-10-11 D/N Page 3 / 17 Size A4 2 System Architecture Diagram Remote board ` 72V電池 Meter ECU CAN BUS 72V To 12V 12V ACC 12V WakeUp ACC 12V CAN_H CAN_L Control Board 電動バイク BAT GN D M LED M+ M- ID LE D SW LF TX RF TX ロック リモコン 電波 1 2 3 4 5 6 7 Figure (1) System Architecture Diagram System Architecture Description : 1. Electric Motorcycle: Divided into 3 components, described as follows : ① 72V Battery: Electric motorcycle battery, provides power to the electric motorcycle and power used during control board ID Check ② 72V to 12V Converter: Power used after successful control board ID Check ③ Meter CAN BUS: After successful ID Check, 12V powers the electric motorcycle wake-up, communicates with control board via CAN BUS 2. Controller: Divided into 3 components, described as follows : ④ Control Board (PCBA) : Smart keyless control board with the following functions : 1. Access SW button detection wake-up 2. Uses LF/RF for identity identification 3. LED indicator lights show system status 4. Motor driver supplies lock/unlock functionality 5. 2 Hall sensors indicate lock/unlock positions 6. WakeUp output power to wake up vehicle system ⑤ Motor Module: Includes 1 set of DC motor for lock/unlock and 2 magnets indicating lock positions Smart keyless Function Specification Program keyless Part Name Part Number Customer Part Number Versio V1.3 Date 2023-10-11 D/N Page 4 / 17 Size A4 ⑥ LED indicator light and Access SW button 3. Remote Control ⑧ Receives LF and returns RF to control board for identity identification Controller Specifications 1. Part Number : 2. RF Reception Frequency: 433MHz±250KHz 3. RF Modulation: FSK 4. LF Transmission Frequency: 125KHz±2.5KHz 5. LF Modulation: ASK 6. Identity Recognition Distance: 1~3M (MAX) at 72V 7. Operating Temperature: -20°C~80°C 8. Storage Temperature: -30°C~85°C 9. Rated Voltage: DC72V, Voltage Range 65V~80V 10. Standby Current: Below 1mA 11. Has backup key programming learning function 12. Has CAN BUS communication, complies with ISO11898, data rate 500K, standard frame (11bit), no termination resistor required 13. Radio waves comply with FCC certification requirements Remote Control Specifications 1. RF Transmission Frequency: 433MHz±250KHz 2. RF Modulation: FSK 3. LF Reception Frequency: 125KHz±3.75KHz 4. LF Modulation: ASK 5. Operating Temperature: -20°C~60°C 6. Storage Temperature: -40°C~85°C 7. Rated Voltage: DC 3V 8. Minimum Operating Voltage: Above 2.4V 9. Encoding Type: Rolling code 10. Static Current Consumption: Below 10μA 12. Battery Original Configuration: Panasonic CR2032 13. Battery Life: 24 months (calculated at 4 times per day) (at storage temperature 5~35°C) Smart keyless Function Specification Program keyless Part Name Part Number Customer Part Number Versio V1.3 Date 2023-10-11 D/N Page 5 / 17 Size A4 3 Controller Main Connector Pin Function Definition Figure (2) Main Connector PIN Definition Smart keyless Function Specification Program keyless Part Name Part Number Customer Part Number Versio V1.3 Date 2023-10-11 D/N Page 6 / 17 Size A4 Pin Definition Description: PIN Definition Port Active 1 ACCESS SW Input Active: Low Inactive: 72 V 2 12V Input Active: 12V Inactive: 0 V 3 WAKE UP Output Active: 72V Inactive: 0 V 4 LED Output Active: 72V Inactive: 0 V 5 CAN-L CAN Communication 6 CAN-H CAN Communication 7 BAT-72V power Tpy.72V 65〜80V 8 GND ground 9 MOTOR+ Output Active: 12V Inactive: 0 V 10 MOTOR- Output Active: 12V Inactive: 0 V Smart keyless Function Specification Program keyless Part Name Part Number Customer Part Number Versio V1.3 Date 2023-10-11 D/N Page 7 / 17 Size A4 I/O Load Specifications: NO. Component Item Specifications 1 MOTOR Motor rated voltage 12V Motor stall current 4876mA, Motor specs: DC12V, 14974rpm, 0.116A 2 ACCESS SW Button 72VDC/50mA( tentative) 3 LED 5VDC/20mA Smart keyless Function Specification Program keyless Part Name Part Number Customer Part Number Versio V1.3 Date 2023-10-11 D/N Page 8 / 17 Size A4 4 Operation Description Figure (3) Controller Internal Block Diagram [Operation Instructions] 1. When the controller is powered on (BAT 72V), the system is in KEY OFF mode 2. When Access SW button is pressed for more than 200ms and less than 3 seconds then released, the SWITCH circuit opens. Controller wakes up for identity identification (retry attempts: 3 times) 3. If identity identification succeeds, output WakeUp and light LED, enter KEY ON state. If identity identification fails, flash LED 2 times (2Hz) then close SWITCH circuit 4. After outputting WakeUp, input 12V from ACC to controller 5. Start CAN communication (send KEY status, LOCK status, LF RSSI value during authentication, remote control battery status, ACC power level, transmission cycle 100ms) 6. A. When LOCK side Hall Switch is ON, control motor until UNLOCK side hall switch turns ON then stop motor; if current abnormality is detected during operation, immediately stop motor, enter KEY OFF state, LED flashes (4Hz), close LED, SWITCH circuit and WakeUp circu…

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Covered Equipment Certification Attestation Letter 12/2/2025 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: 2BTB6J71KEYL0031 WellySun Inc. (“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. This includes certifying that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. WellySun Inc (“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. Signed: Printed name: Sherry Yang Title: Assistant Vice President Company Name: WellySun Inc Date: 12/2/2025

International Standards Laboratory Corp. Report Number: ISL-25LR0134P Appendix Photographs of EUT of Product Name KEYLESS Remote Controller Main Model J71.KEYL003.1 Series Model NA Brand Wellysun International Standards Laboratory Corp. Report Number: ISL-25LR0134P -1- EUT-1. EUT-2. International Standards Laboratory Corp. Report Number: ISL-25LR0134P -2- EUT-3. EUT-4. International Standards Laboratory Corp. Report Number: ISL-25LR0134P -3- EUT-5. EUT-6.

FCC ID LABEL FORMAT AND LOCATION Applicant: Wellysun Inc. FCC ID: 2BTB6J71KEYL0031

International Standards Laboratory Corp. Report Number: ISL-25LR0134P Appendix Photographs of EUT of Product Name KEYLESS Remote Controller Main Model J71.KEYL003.1 Series Model NA Brand Wellysun International Standards Laboratory Corp. Report Number: ISL-25LR0134P -1- EUT-1. EUT-2. International Standards Laboratory Corp. Report Number: ISL-25LR0134P -2- EUT-3. EUT-4. ATA5702 International Standards Laboratory Corp. Report Number: ISL-25LR0134P -3- EUT-5.

FCC ID: 2BTB6J71KEYL0031 International Standards Laboratory Corp. Report No.: ISL-25LR0134FCC Radio Frequency Exposure Evaluation Standard Applicable According to 447498 D04 Interim General RF Exposure Guidance v01 section 2.1.2, the available maximum time-average power not exceeding 1 mW is exempt from the test. 1-mW Test Exemption Frequency (MHz) Max E-Field (dBμV/m@3m) Max. Power EIRP (dBm) Tune-up tolerance (dB) EIRP Power Max Power Limit (mW) (dBm) (mW) 433.92 37.02 -58.18 1 -57.18 0.00000 1 ~ end ~

Page: 1 of 33 TEST REPORT of FCC Part 15 Subpart C New Application; Class I PC; Class II PC Product : KEYLESS Remote Controller Brand: Wellysun Model: J71.KEYL003.1 Model Difference: N/A FCC ID: 2BTB6J71KEYL0031 FCC Rule Part: §15.231 (a) Applicant: Wellysun Inc. Address: 11F-8, No.12, Taiyuan 2nd Street, Zhubei City, Hsinchu County 302082, Taiwan(R.O.C.) Test Performed by: International Standards Laboratory Corp. LT Lab. TEL: +886-3-263-8888 FAX: +886-3-263-8899 No. 120, Lane 180, Hsin Ho Rd., Lung-Tan Dist., Tao Yuan City 325, Taiwan Report No.: ISL-25LR0134FC433 Issue Date : 2025/09/30 FCC Registration Number: 487532 Test results given in this report apply only to the specific sample(s) tested and are traceable to national or international standard through calibration of the equipment and evaluating measurement uncertainty herein. According to customer agreement, the laboratory issues test reports based on the regulations or standards specifications, the measurement uncertainty is not considered in conformity decision rules. This test report shall not be reproduced except in full, without the written approval of International Standards Laboratory Corp. -2 of 33- International Standards Laboratory Corp. Report Number: ISL-25LR0134FC433 VERIFICATION OF COMPLIANCE Applicant: Wellysun Inc. Product Description: KEYLESS Remote Controller Brand Name: Wellysun FCC ID: 2BTB6J71KEYL0031 FCC Rule Part: §15.231 (a) Model No.: J71.KEYL003.1 Model Difference: N/A Date of test: 2025/08/29 ~ 2025/09/30 Date of EUT Received: 2025/08/29 We hereby certify that: All the tests in this report have been performed and recorded in accordance with the standards described above and performed by an independent electromagnetic compatibility consultant, International Standards Laboratory Corp. The test results contained in this report accurately represent the measurements of the characteristics and the energy generated by sample equipment under test at the time of the test. The sample equipment tested as described in this report is in compliance with the limits of above standards. Prepared By: Gigi Yeh Test By: Approved By: Jason Chao Jerry Liu / Manager -3 of 33- International Standards Laboratory Corp. Report Number: ISL-25LR0134FC433 Version Version No. Date Description 00 2025/09/30 Initial creation of document Uncertainty of Measurement Parameter Uncertainty (k=2) Conducted Emission (AC power line) ± 1.6 dB Spurious emissions, radiated ± 4.8 dB RF power, conducted ± 2.2 dB Power Density ± 2.3 dB RF Frequency ± 1.5 % DC Voltage ± 2.2 % -4 of 33- International Standards Laboratory Corp. Report Number: ISL-25LR0134FC433 Table of Contents 1. GENERAL INFORMATION ............................................................................................ 6 1.1 PRODUCT DESCRIPTION ................................................................................................................... 6 1.2 RELATED SUBMITTAL(S) / GRANT (S) .............................................................................................. 7 1.3 TEST METHODOLOGY ....................................................................................................................... 7 1.4 TEST FACILITY ................................................................................................................................. 7 1.5 SPECIAL ACCESSORIES ..................................................................................................................... 7 1.6 EQUIPMENT MODIFICATIONS ........................................................................................................... 7 2. SYSTEM TEST CONFIGURATION ............................................................................... 8 2.1 EUT CONFIGURATION ...................................................................................................................... 8 2.2 EUT EXERCISE ................................................................................................................................. 8 2.3 TEST PROCEDURE ............................................................................................................................. 8 2.4 LIMITATION ...................................................................................................................................... 9 2.5 CONFIGURATION OF TESTED SYSTEM .............................................................................................12 3. SUMMARY OF TEST RESULTS .................................................................................. 13 4. DESCRIPTION OF TEST MODES .............................................................................. 13 5. AC CONDUCTED EMISSIONS TEST ......................................................................... 14 5.1 MEASUREMENT PROCEDURE: .........................................................................................................14 5.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................14 5.3 MEASUREMENT EQUIPMENT USED: ................................................................................................15 5.4 MEASUREMENT RESULT: ................................................................................................................15 6. RADIATED EMISSION TEST ....................................................................................... 16 6.1 MEASUREMENT PROCEDURE...........................................................................................................16 6.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................17 6.3 MEASUREMENT EQUIPMENT USED: ................................................................................................18 6.4 FIELD STRENGTH CALCULATION ....................................................................................................18 6.5 MEASUREMENT RESULT...........................…

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-29 of 33- International Standards Laboratory Corp. Report Number: ISL-25LR0134FC433 9. APPENDIX 1 : PHOTOGRAPHS OF SETUP Radiated Emission Setup Photos -30 of 33- International Standards Laboratory Corp. Report Number: ISL-25LR0134FC433 -31 of 33- International Standards Laboratory Corp. Report Number: ISL-25LR0134FC433 -32 of 33- International Standards Laboratory Corp. Report Number: ISL-25LR0134FC433 -33 of 33- International Standards Laboratory Corp. Report Number: ISL-25LR0134FC433 10. APPENDIX 2: PHOTOGRAPHS OF EUT Please refer to the File of ISL-25LR0134P ~ End of Report ~