2AMOD-CM2R3CHASING RC3

User ManualV1.0 DISCLAIMER Thank you for purchasing the CHASING M2 Pro underwater drone. Please read this entire document carefully before using the drone. By using this product, you hereby signify that you have read this disclaimer and all instructions carefully and that you understand and agree to abide by the terms and conditions herein. Chasing accepts no liability for damage, injury, or any legal responsibility incurred directly or indirectly from the use of the CHASING M2 Pro in the following conditions: 01. Damage(s) or injuries incurred when users are drunk, taking drugs, drug anesthesia, dizziness, fatigue, nausea and any other conditions no matter physically or mentally that could impair your ability. 02. Damage(s) or injuries caused by subjective intentional operations. 03. Any mental overcompensation caused by accident. 04. Failure to follow the guidance of the manual to assemble or operate. 05. Malfunctions caused by refit or replacement with non-Chasing accessories and parts, or unauthorized modification, disassembly, or shell opening not in accordance with ocial instructions. 06. Damage(s) or injuries caused by using third-party products or fake Chasing products. 07. Damage(s) or injuries caused by misoperation or subjective misjudgment. 08. Damage(s) or injuries caused by mechanical failures due to erosion, aging. 09. Damage(s) or injuries caused by operating the unit with a low battery alert. 10. Damage(s) or injuries caused by operating the drone out of maximum safe range and depth. 11. Damage(s) or injuries caused by knowingly operating the product in abnormal conditions (such as the assembly is not completed, or the main components have obvious faults, obvious defect or missing accessories). 12. Damage(s) or injuries caused by operating the drone in a sensitive zone such as a military area or private waters without ocial permission. 13. Damage or injury caused by using in bad water conditions (such as high winds, or turbid zone). 14. Damage or injury caused by uncontrollable external factors, including severe collision, tidal wave. swallowed by animal. 15. Damage(s) or injuries caused by infringement such as any data, photo or video material recorded by the use of the CHASING M2 Pro. 16. Other losses that are not covered by the scope of Chasing's liability. 17. When used in charging mode, the maximum operating temperature is 25°C, and the maximum operating temperature of the product in normal use is 45°C. Warning: Bright light Possible skin or eye damage，Disconnect power before servicing – Replacement of a battery with an incorrect type that can defeat a safeguard (for example, in the case of some lithium battery types); – Disposal of a battery into fire or a hot oven, or mechanically crushing or cutting of a battery, that can result in an explosion; – Leaving a battery in an extremely high temperature surrounding environment that can result in an explosion or the leakage of flammable liquid or gas; – A battery subjected to extremely low air pressure that may result in an explosion or the leakage of flammable liquid or gas. FCC Warning 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. FCC Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful 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 will not 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.  FCC Radiation Exposure Statement This device complies with FCC radiation exposure limits set forth for an uncontrolled environment and it also complies with Part 15 of the FCC RF Rules. This equipment must not be co-located or operating in conjunction with any other antenna or transmitter. End-users and installers must be provide with antenna installation instructions and consider removing the no-collocation statement.  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. Caution!  Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Canada Statement  This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device. L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et Dé veloppement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivant…

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Chasing-Innovation Technology Co.,Ltd. Declaration of Authorization We Name: Chasing-Innovation Technology Co.,Ltd. Address: ROOM 506 XITA BUILDING,DIGITAL CULTURE INDUSTRY BASE,SHENLAN AVENUE 10128,NANSHAN DISTRICT City: Shenzhen Country: China Declare that: Name Representative of agent: Ms. Rose Liu Agent Company name: BTL Inc. Address: No.3 Jinshagang 1 st Road, Shixia, Dalang Town City: Dong Guan Country: China is authorized to apply for Certification of the following product(s) and signing all the related documents including 731 forms: Product description: CHASING RC3 Type designation: CM2R3 Trademark: CHASING FCC ID: 2AMOD-CM2R3 on our behalf. Date: 2021-02-23 City: Shenzhen Name: leon lee Function: Manager Signature:

Chasing-Innovation Technology Co.,Ltd. Date: 2021-2-23 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AMOD-CM2R3 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Block Diagram Schematics Operational Description 4. Schematics 5. Block Diagram 6. Operatinal Description 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. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. 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. Signature leon lee Manager

Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 UNII Device Declaration Letter To whom it may concern: We have declared below featured for FCC equipment authorization, Device FCC ID: 2AMOD-CM2R3 (1) DFS Device: Master Client with Radar detection capability N/A Client without radar detection capability, (2) Active / Passive Scanning , adhoc mode access point capability Frequency Band (MHz) Active Scanning (the device can transmit a probe (beacon)) passive scanning (where the device is can listen only with no probes) Ad Hoc Mode capability Access point capability 2412-2462 Yes No Yes No Yes No Yes No 5745-5825 Yes No Yes No Yes No Yes No 5755-5795 Yes No Yes No Yes No Yes No (3) Country code selection ability Yes No If yes, pls explain how it was implemented: (4) Meet 15.202 requirement Yes No pls check below : A master device is defined as a device operating in a mode in which it has the capability to transmit without receiving an enabling signal. In this mode it is able to select a channel and initiate a network by sending enabling signals to other devices A client device is defined as a device operating in a mode in which the transmissions of the device are under control of the master. A device in client mode is not able to initiate a network. (5) For client devices that have software configuration control to operate in different modes (active scanning in some and passive scanning in others) in different bands (devices with multiple equipment classes or those that operate on non- DFS frequencies) or modular devices which configure the modes of operations through software, the application must provide software and operations description on how the software and / or hardware is implemented to ensure that proper operations modes cannot be modified by end user or an installer. Apply Does not apply (If apply, pls help to provide explanation on it was implement, and how software was controlled) Sincerely Name: leon lee Company: Chasing-Innovation Technology Co.,Ltd. Address: ROOM 506 XITA BUILDING,DIGITAL CULTURE INDUSTRY BASE,SHENLAN AVENUE 10128,NANSHAN DISTRICT Phone: 18611822026 Fax: 075526407202 Email: [email protected]

Project No.: 2101C048 Page 1 of 18 ATTACHMENT PHOTOGRAPHS OF EUT Project No.: 2101C048 Page 2 of 18 Project No.: 2101C048 Page 3 of 18 Project No.: 2101C048 Page 4 of 18 Project No.: 2101C048 Page 5 of 18

Label location Made in China 211-201220 Model: Input: DC 25.2V 2.9A CM2R3 FCC ID: 2AMOD-CM2R3 Chasing-Innovation Technology co.,Ltd Room 3105,Building 6, International Innovation Valley, Dashi 1st Road, Xili, Nanshan District, Guangdong, China IC: 22933-CM2R3

Project No.: 2101C048 Page 6 of 18 Ant. 1 Ant. 2 Project No.: 2101C048 Page 7 of 18 Project No.: 2101C048 Page 8 of 18 Project No.: 2101C048 Page 9 of 18 Project No.: 2101C048 Page 10 of 18 Project No.: 2101C048 Page 11 of 18 Project No.: 2101C048 Page 12 of 18 Project No.: 2101C048 Page 13 of 18 Project No.: 2101C048 Page 14 of 18 Project No.: 2101C048 Page 15 of 18 Project No.: 2101C048 Page 16 of 18 Project No.: 2101C048 Page 17 of 18 Project No.: 2101C048 Page 18 of 18

Report No.: BTL-FCCP-3-2101C048 Page 1 of 4 FCC RF EXPOSURE REPORT FCC ID: 2AMOD-CM2R3 Project No. : 2101C048 Equipment : CHASING RC3 Brand Name : CHASING Test Model : CM2R3 Series Model : N/A Applicant : Chasing-Innovation Technology Co.,Ltd Address : ROOM 506 XITA BUILDING,DIGITAL CULTURE INDUSTRY BASE,SHENLAN AVENUE 10128,NANSHAN DISTRICT Manufacturer : Chasing-Innovation Technology co.,Ltd Address : Room 3105, Building 6, Shenzhen International Innovation Valley, Dashi 1st Road, Xili, Nanshan District,Shenzhen, Guangdong, China 518000 Factory : Shenzhen Chasing Manufacturing Co., Ltd. Address : 2 floor, A building, LiuWeijian Industrial Park, Tong Tou industrial area, Shiyan street, Baoan District, Shenzhen Date of Receipt : Jan. 07, 2021 Date of Test : Jan. 08, 2021 ~ Jan. 29, 2021 Issued Date : Mar. 02, 2021 Report Version : R01 Test Sample : Engineering Sample No.: DG2021010856-6 Standard(s) : FCC Guidelines for Human Exposure IEEE C95.1 & KDB447498 D01 The above equipment has been tested and found compliance with the requirement of the relative standards by BTL Inc. Prepared by : Nick Chen Approved by : Ethan Ma Add: No.3, Jinshagang 1st Road, Shixia, Dalang Town,Dongguan, Guangdong, China. Tel: +86-769-8318-3000 Web: www.newbtl.com Report No.: BTL-FCCP-3-2101C048 Page 2 of 4 REPORT ISSUED HISTORY Report Version Description Issued Date R00 Original Issue. Feb. 24, 2021 R01 Modified the comments of Timco. Mar. 02, 2021 Report No.: BTL-FCCP-3-2101C048 Page 3 of 4 1. TEST FACILITY The test facilities used to collect the test data in this report is at the location of No.3,Jinshagang 1st Road, Shixia, Dalang Town, Dongguan, Guangdong, China. BTL's Test Firm Registration Number for FCC: 357015 BTL's Designation Number for FCC: CN1240 2. GENERAL CONCULUSION According to FCC KDB447498 D01, Appendix A, SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 Appendix A - SAR Test Exclusion Thresholds for 100 MHz - 6 GHz and < 50 mm MHz 5 10 15 20 25 30 35 40 45 50 mm 150 39 77 116 155 194 232 271 310 349 387 SAR Test Exclusion Thresholds (mW) 300 27 55 82 110 137 164 192 219 246 274 450 22 45 67 89 112 134 157 179 201 224 835 16 33 49 66 82 98 115 131 148 164 900 16 32 47 63 79 95 111 126 142 158 1500 12 24 37 49 61 73 86 98 110 122 1900 11 22 33 44 54 65 76 87 98 109 2450 10 19 29 38 48 57 67 77 86 96 3600 8 16 24 32 40 47 55 63 71 79 5200 7 13 20 26 33 39 46 53 59 66 5400 6 13 19 26 32 39 45 52 58 65 5800 6 12 19 25 31 37 44 50 56 62 Report No.: BTL-FCCP-3-2101C048 Page 4 of 4 3. TABLE FOR FILED ANTENNA For 2.4G: Ant. Brand P/N Antenna Type Connector Gain(dBi) 1 YJ084L.300001.L01 Internal IPEX 1.8 2 YJ084L.300001.L01 Internal IPEX 1.8 Note: 1) This EUT supports MIMO 2X2, any transmit signals are correlated with each other, so Directional gain = G ANT +10log(N)dBi, that is Directional gain=1.8+10log(2)dBi=4.81. 2) The antenna gain is provided by the manufacturer. For 5G: Ant. Brand P/N Antenna Type Connector Gain(dBi) 1 YJ084L.300001.L01 Internal IPEX 5.9 2 YJ084L.300001.L01 Internal IPEX 5.9 Note: 1) This EUT supports MIMO 2X2, any transmit signals are correlated with each other, so Directional gain = GANT+10log(N)dBi, that is Directional gain=5.9+10log(2)dBi=8.91. So,the output power limit is 30-8.91+6=27.09. The thepower spectral density limit is 30-8.91+6=27.09. 2) The antenna gain is provided by the manufacturer. 4. TEST RESULTS For 2.4G: Frequency (MHz) Max Tune-up power (dBm) Max Tune-up power (mW) Result Limit 2412 9.62 9.152 2.843 10 For 5G: Frequency (MHz) Max Tune-up power (dBm) Max Tune-up power (mW) Result Limit 5745 7.81 6.038 2.895 7.5 Note: (1) Output power including tune up tolerance. (2) The maximum measured output peak power of this EUT is 9.152, less than 10mW at 5mm distance. Conclusion: No SAR evaluation required since transmitter power is below FCC threshold. End of Test Report

Report No.: BTL-FCCP-2-2101C048 Page 1 of 89 FCC Radio Test Report FCC ID: 2AMOD-CM2R3 This report concerns: Original Grant Project No. : 2101C048 Equipment : CHASING RC3 Brand Name : CHASING Test Model : CM2R3 Series Model : N/A Applicant : Chasing-Innovation Technology Co.,Ltd Address : ROOM 506 XITA BUILDING,DIGITAL CULTURE INDUSTRY BASE,SHENLAN AVENUE 10128,NANSHAN DISTRICT Manufacturer : Chasing-Innovation Technology co.,Ltd Address : Room 3105, Building 6, Shenzhen International Innovation Valley, Dashi 1st Road, Xili, Nanshan District,Shenzhen, Guangdong, China 518000 Factory : Shenzhen Chasing Manufacturing Co., Ltd. Address : 2 floor, A building, LiuWeijian Industrial Park, Tong Tou industrial area, Shiyan street, Baoan District, Shenzhen Date of Receipt : Jan. 07, 2021 Date of Test : Jan. 08, 2021 ~ Jan. 29, 2021 Issued Date : Mar. 02, 2021 Report Version : R01 Test Sample : Engineering Sample No.:DG2021010856-6 Standard(s) : FCC Part15, Subpart E(15.407) ANSI C63.10-2013 FCC KDB 789033 D02 General UNII Test Procedures New Rules v02r01 FCC KDB 662911 D01 Multiple Transmitter Output v02r01 The above equipment has been tested and found compliance with the requirement of the relative standards by BTL Inc. Prepared by : Nick Chen Approved by : Ethan Ma Add: No.3, Jinshagang 1st Road, Shixia, Dalang Town,Dongguan, Guangdong, China. Te l : +86-769-8318-3000 Web: www.newbtl.com Report No.: BTL-FCCP-2-2101C048 Page 2 of 89 Declaration BTL represents to the client that testing is done in accordance with standard procedures as applicable and that test instruments used has been calibrated with standards traceable to international standard(s) and/or national standard(s). BTL's reports apply only to the specific samples tested under conditions. It is manufacture’s responsibility to ensure that additional production units of this model are manufactured with the identical electrical and mechanical components. BTL shall have no liability for any declarations, inferences or generalizations drawn by the client or others from BTL issued reports. The report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, A2LA, or any agency of the U.S. Government. This report is the confidential property of the client. As a mutual protection to the clients, the public and ourselves, the test report shall not be reproduced, except in full, without our written approval. BTL’s laboratory quality assurance procedures are in compliance with the ISO/IEC 17025 requirements, and accredited by the conformity assessment authorities listed in this test report. BTL is not responsible for the sampling stage, so the results only apply to the sample as received. The information, data and test plan are provided by manufacturer which may affect the validity of results, so it is manufacturer’s responsibility to ensure that the apparatus meets the essential requirements of applied standards and in all the possible configurations as representative of its intended use. Limitation For the use of the authority's logo is limited unless the Test Standard(s)/Scope(s)/Item(s) mentioned in this test report is (are) included in the conformity assessment authorities acceptance respective. Please note that the measurement uncertainty is provided for informational purpose only and are not use in determining the Pass/Fail results. Report No.: BTL-FCCP-2-2101C048 Page 3 of 89 Table of Contents Page REPORT ISSUED HISTORY 6 1 . SUMMARY OF TEST RESULTS 7 1.1 TEST FACILITY 8 1.2 MEASUREMENT UNCERTAINTY 8 1.3 TEST ENVIRONMENT CONDITIONS 9 2 . GENERAL INFORMATION 10 2.1 GENERAL DESCRIPTION OF EUT 10 2.2 TEST MODES 11 2.3 PARAMETERS OF TEST SOFTWARE 12 2.4 DUTY CYCLE 13 2.5 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 14 2.6 SUPPORT UNITS 14 3 . AC POWER LINE CONDUCTED EMISSIONS 15 3.1 LIMIT 15 3.2 TEST PROCEDURE 15 3.3 DEVIATION FROM TEST STANDARD 15 3.4 TEST SETUP 16 3.5 EUT OPERATION CONDITIONS 16 3.6 TEST RESULTS 16 4 . RADIATED EMISSIONS TEST 17 4.1 LIMIT 17 4.2 TEST PROCEDURE 18 4.3 DEVIATION FROM TEST STANDARD 18 4.4 TEST SETUP 19 4.5 EUT OPERATION CONDITIONS 20 4.6 TEST RESULTS - 9 KHZ to 30 MHZ 20 4.7 TEST RESULTS - 30 MHz TO 1000 MHz 20 4.8 TEST RESULTS - ABOVE 1000 MHz 20 5 . BANDWIDTH TEST 21 5.1 LIMIT 21 5.2 TEST PROCEDURE 21 5.3 TEST PROCEDURE 21 5.4 TEST SETUP 21 Report No.: BTL-FCCP-2-2101C048 Page 4 of 89 Table of Contents Page 5.5 EUT OPERATION CONDITIONS 21 5.6 TEST RESULTS 21 6 . MAXIMUM OUTPUT POWER TEST 22 6.1 LIMIT 22 6.2 TEST PROCEDURE 22 6.3 DEVIATION FROM STANDARD 22 6.4 TEST SETUP 22 6.5 EUT OPERATION CONDITIONS 22 6.6 TEST RESULTS 22 7 . POWER SPECTRAL DENSITY TEST 23 7.1 LIMIT 23 7.2 TEST PROCEDURE 23 7.3 DEVIATION FROM STANDARD 23 7.4 TEST SETUP 23 7.5 EUT OPERATION CONDITIONS 23 7.6 TEST RESULTS 23 8 . FREQUENCY STABILITY MEASUREMENT 24 8.1 LIMIT 24 8.2 TEST PROCEDURE 24 8.3 DEVIATION FROM STANDARD 24 8.4 TEST SETUP 24 8.5 EUT OPERATION CONDITIONS 24 8.6 TEST RESULTS 24 9 . MEASUREMENT INSTRUMENTS LIST 25 10 . EUT TEST PHOTOS 27 APPENDIX A - AC POWER LINE CONDUCTED EMISSIONS 31 APPENDIX B - RADIATED EMISSION - 9 KHZ TO 30 MHZ 34 APPENDIX C - RADIATED EMISSION - 30 MHZ TO 1 GHZ 39 APPENDIX D - RADIATED EMISSION - ABOVE 1000 MHZ 42 APPENDIX E - BANDWIDTH 75 APPENDIX F - MAXIMUM OUTPUT POWER 79 APPENDIX G - POWER SPECTRAL DENSITY 83 APPENDIX H - FREQUENCY STABILITY 88 Report No.: BTL-FCCP-2-2101C048 Page 5 of 89 Table of Contents Page Report No.: BTL-FCCP-2-2101C048 Page 6 of 89 REPORT ISSUED HISTORY Report Version Description Issued Date R00 Original Issue. Feb. 24, 2021 R01 Modified the comments of Timco. Mar. 02, 2021 Report No.: BTL-FCCP-2-2101C048 Page 7 of 89 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standard(s): FCC Part15, Subpart E(15.407) Standard(s) Section Test Item Test Result Judgment Remark 15.207 15.407(b) AC Power Line Conducted Emissions APPENDIX A PASS ------ 15.407(b) 15.205(a) 15.209(a) Radiated Emissions APPEND…

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Report No.: BTL-FCCP-1-2101C048 Page 28 of 115 10. EUT TEST PHOTO AC Power Line Conducted Emissions Test Photos Report No.: BTL-FCCP-1-2101C048 Page 29 of 115 Radiated Emissions Test Photos 9 kHz to 30 MHz Report No.: BTL-FCCP-1-2101C048 Page 30 of 115 Radiated Emissions Test Photos 30 MHz to 1 GHz Report No.: BTL-FCCP-1-2101C048 Page 31 of 115 Radiated Emissions Test Photos Above 1 GHz