2AYDUTY-DJS003Smart Bike Trainer (DJS-003)

Operation Instructions Product Name: Smart Bike Trainer (DJS‐003) Product Model: TY‐DJS003 Jinhua Unisky Tools Co., Ltd. Catalogue Warning After‐Sales Service Disclaimer Spare Parts List Installation Instructions 1、Bike Confirmation 2、Assembly of Bike Trainer and Damper 3、Bike Installation and Debugging Smart Training Maintenance Common Fault and Eliminating Methods Product Specification Parameters FCCStatement Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of theFCC Rules. These limits are designed to provide reasonable protection againstharmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference willnot occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ‐‐Reorient or relocate the receiving antenna. ‐‐Increase the separation between the equipment and receiver. ‐‐Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. ‐‐Consult the dealer or an experienced radio/TV technician for help 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。 Warning Thank you for purchasing UNISKY Intelligent Power Bike Trainer. Please read this instruction carefully before use and follow the tips of this instruction for installation, operation, and use, to ensure your bike runs well and is not damaged, and prevent and avoid unnecessary accidents and injuries. ●Please replace and use our special quickrelease for the rear wheel of the bike before use, and carefully check whether all parts in the package are complete. ●Before use, please confirm that the product has been placed on firm ground, and the four‐foot pads on the feet touch the ground at the same time, to ensure that the product is stable and does not shake. ●Before starting the training, please make sure you are in good health. It is recommended that you consult your doctor to know whether you can do Cycling. ●If you feel unwell during use (such as physical tiredness, weakness, pain, chest tightness, discomfort, or abnormal pulsebeat), please stop using immediately and take a rest. If you continue to feel unwell, you are recommended to see a doctor immediately. ●Without supervision or guidance, people with physical, sensory, or mental disabilities (including children) or who lack relevant experience or knowledge shall not use this product. ●Do not allow children to use this product as a toy without supervision to avoid danger or injury. ●Please pay attention to whether your clothes are too long, to avoid clothes or accessories on clothes affecting cycling and avoid danger. ●When using this product, please keep enough space around to ensure that there are no obstacles, children, pets or any potentially dangerous articles (furniture, tables, and chairs, etc.) around, to avoid accidents due to inadvertent contact with the moving parts on the bike and bike trainer. ●Pleasebecarefulwhenusingthisproduct while standing up. Do not stand and shake the bike to avoid falling or damaging the bike. ●Please do not disassemble or convert this product by yourself. ●Please use the original spare parts. If there is any problem with this product, please contact the authorized dealer of UNISKY. After‐Sales Service The products shall provide three guarantees of product quality within one year from the date of sale. The specific implementation is as follows: 1. In case of performance failure within 7 days from the date of sale, the dealer shall provide return, replacement, or repair services. The dealer shall bear the costs of repair, replacement of parts, and transportation. 2. In case of performance failure within 15 days from the date of sale, the dealer shall provide replacement or repair services. The dealer shall bear the costs of repair, replacement of parts, and transportation. 3. In case of performance failure after 15 days from the date of sale, the dealer shall provide repair services. The dealer shall bear the cost of repair and replacement of parts, and the consumer shall bear the cost of transportation. The three guarantees of product quality do not apply to the following situations: 1. Appearance damage during use, such as abrasion and nick. 2. Damage caused by failure to operate and use properly according to the instructions 3. Damage caused by the repair of the dealer not authorized by UNISKY. 4. Damage caused by modification or change without the written permission of UNISKY. 5. The damage caused by bumps in the process of storage and handling by consumers themselves. 6. Damage caused by flood, fire, earthquake and other irresistible natural factors Tip: For products not covered by the Three Guarantees, the dealer shall provide paid maintenance services, and the consumershall bear all costs for maintenance, replacement of parts, transportation, etc. Disclaimer ○UNISKY shall not be responsible for the failure of software /application/equipment of the third party manufacturer, and shall not be liable for any damage to the bike trainer caused by software not developed or recommended by UNISKY. ○The user must carefully read this instruction before using the product, completely follow the installation steps,installati…

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Jinhua Unisky Tools Co., Ltd. 2020-12-09 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AYDUTY-DJS003 Product Name: Smart Bike Trainer (DJS-003) Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature> Name: Jinwei Li Title: Technician Company: Jinhua Unisky Tools Co., Ltd.

Jinhua Unisky Tools Co., Ltd. 2020-12-09 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen Tongce Testing Lab. / 1B/F., Building 1, Yibaolai Industrial Park, Qiaotou, Fuyong, Baoan District, Shenzhen, Guangdong, China(Name of Agent company name and address) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with Jinhua Unisky Tools Co., Ltd. / 118 Tianyu Rd., Zhuma Industrial Park, Wucheng District, Jinhua, 321000 China(Applicant Name and address) <Signature> Name: Jinwei Li Title: Technician Company: Jinhua Unisky Tools Co., Ltd.

Page 1 of 4 Appendix B: Photographs of EUT Product: Smart Bike Trainer (DJS-003) Model: TY-DJS003 External Photos Page 2 of 4 Page 3 of 4 Page 4 of 4

Label Artwork and Location Model: TY-DJS003 Label: Location 2AYDUTY-DJS003

Page 1 of 3 Appendix B: Photographs of EUT Product: Smart Bike Trainer (DJS-003) Model: TY-DJS003 Internal Photos ANT Page 2 of 3 Page 3 of 3

RF Exposure evaluation According to 447498 D01 General RF Exposure Guidance v05 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 eirp = pt x gt = (EXd) 2 /30 where: pt = transmitter output power in watts, gt = numeric gain of the transmitting antenna (unitless), E = electric field strength in V/m, --- 10 ((dBuV/m)/20) /10 6 d = measurement distance in meters (m)---3m Sopt = (EXd) 2 /30 x gt Ant gain= -2 dBi ; so Ant numeric gain= 0.63 Field strength =88.65 dBμV/m @3m So Pt={ [10 (88.65/20) /10 6 x3] 2 /30x0.63 }x1000 mW = 0.35mW So ( 0.35mW/5mm)x √2.457 GHz = 0.11 < 3 Then SAR evaluation is not required

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID: 2AYDUTY-DJS003 Product: Smart Bike Trainer (DJS-003) Model No.: TY-DJS003 Additional Model No.: N/A Trade Mark: Report No.: TCT201117E020 Issued Date: Dec. 07, 2020 Issued for: Jinhua Unisky Tools Co., Ltd. 118 Tianyu Rd., Zhuma Industrial Park, Wucheng District, Jinhua, 321000 China Issued By: Shenzhen Tongce Testing Lab. 1B/F., Building 1, Yibaolai Industrial Park, Qiaotou, Fuyong, Baoan District, Shenzhen, Guangdong, China TEL: +86-755-27673339 FAX: +86-755-27673332 Note: This report shall not be reproduced except in full, without the written approval of Shenzhen Tongce Testing Lab. This document may be altered or revised by Shenzhen Tongce Testing Lab. personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT201117E020 Page 2 of 25 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TABLE OF CONTENTS 1. Test Certification ..................................................................................... 3 2. Test Result Summary .............................................................................. 4 3. EUT Description ....................................................................................... 5 4. General Information ................................................................................. 6 4.1. Test Environment and Mode ................................................................................. 6 4.2. Description of Support Units ................................................................................ 6 5. Facilities and Accreditations .................................................................. 7 5.1. Facilities ................................................................................................................. 7 5.2. Location ................................................................................................................. 7 5.3. Measurement Uncertainty ..................................................................................... 7 6. Test Results and Measurement Data ..................................................... 8 6.1. Antenna Requirement ........................................................................................... 8 6.2. Conducted Emission ............................................................................................. 9 6.3. Radiated Emission Measurement ...................................................................... 10 6.4. 20dB Occupied Bandwidth ................................................................................. 23 Appendix A: Photographs of Test Setup Appendix B: Photographs of EUT Report No.: TCT201117E020 Page 3 of 25 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. Test Certification Product: Smart Bike Trainer (DJS-003) Model No.: TY-DJS003 Additional Model: N/A Trade Mark: Applicant: Jinhua Unisky Tools Co., Ltd. Address: 118 Tianyu Rd., Zhuma Industrial Park, Wucheng District, Jinhua, 321000 China Manufacturer: Jinhua Unisky Tools Co., Ltd. Address: 118 Tianyu Rd., Zhuma Industrial Park, Wucheng District, Jinhua, 321000 China Date of Test: Nov. 18, 2020 – Dec. 04, 2020 Applicable Standards: FCC CFR Title 47 Part 15 Subpart C Section 15.249 ANSI C63.10:2013 The above equipment has been tested by Shenzhen Tongce Testing Lab. and found compliance with the requirements set forth in the technical standards mentioned above. The results of testing in this report apply only to the product/system, which was tested. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. Tested By: Date: Dec. 04, 2020 Brave Zeng Reviewed By: Date: Dec. 07, 2020 Beryl Zhao Approved By: Date: Dec. 07, 2020 Tomsin Report No.: TCT201117E020 Page 4 of 25 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. Test Result Summary Requirement CFR 47 Section Result Antenna Requirement §15.203 PASS AC Power Line Conducted Emission §15.207 PASS Field Strength of Fundamental §15.249 (a) PASS Spurious Emissions §15.249 (a) (d)/ §15.209 PASS Band Edge §15.249 (d)/ §15.205 PASS 20dB Occupied Bandwidth §15.215 (c) PASS Note: 1. Pass: Test item meets the requirement. 2. Fail: Test item does not meet the requirement. 3. N/A: Test case does not apply to the test object. 4. The test result judgment is decided by the limit of test standard. Report No.: TCT201117E020 Page 5 of 25 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. EUT Description Product: Smart Bike Trainer (DJS-003) Model No.: TY-DJS003 Additional Model: N/A Trade Mark: Operation Frequency: 2457MHz Modulation Technology: GFSK Antenna Type: PCB Antenna Antenna Gain: -2dBi Power Supply: AC 120V/60Hz AC adapter: Adapter Information: Adapter Model: ABT040120 Input: AC 100-240V, 50/60Hz, 1.5A MAX Output: DC 12V, 4A Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not responsible for this parameter. Report No.: TCT201117E020 Page 6 of 25 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 4. General Information 4.1. Test Environment and Mode Operating Environment: Condition Conducted Emission Radiated Emission Temperature: 25.0 C 25.0 C Humidity: 55 % RH 55 % RH Atmospheric Pressure: 1010 mbar 1010 mbar Test Mode: Engineering mode: Keep the EUT in continuous transmitting by select channel and modulations with Fully-charged battery The sample was placed 0.8m & 1.5m for the measurement below & above 1GHz above the ground plane of 3m chamber. Measurements in both horizontal and vertical polarities were performed. During the test, each emission was maximized by: having the EUT continuously working, investigated al…

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Page 1 of 2 Appendix A: Photographs of Test Setup Product: Smart Bike Trainer (DJS-003) Model: TY-DJS003 Radiated Emission Page 2 of 2 Conducted Emission