User Service Agreement

Last updated: November 4, 2025

This User Service Agreement (hereinafter referred to as the “Agreement”) is a valid contract between the user (hereinafter referred to as “you” or “User”) and the provider of this application and related services (hereinafter referred to as “we” or “us”) with respect to your downloading, installation and use of the application and/or related services provided by us (including but not limited to the application “SoundNC”, collectively referred to as the “Service”).

Before using the Service, you must carefully read and fully understand all the contents of this Agreement, especially the clauses that are highlighted in bold which exempt or limit our liability, restrict users’ rights, and relate to dispute resolution and governing law. Once you download, install, register, log in to, or use the Service, or otherwise expressly or implicitly indicate your acceptance of this Agreement, you shall be deemed to have fully read, understood and agreed to be bound by all the terms of this Agreement.

If you do not agree with any part of this Agreement, please do not download, install or use the Service.

I. Acceptance and Amendment of the Agreement

1. You understand and agree that your use of the Service shall be deemed to indicate that you have full capacity for civil conduct under applicable law, or that you have obtained the consent of your legal guardian, and that you are capable of bearing all responsibilities arising from your use of the Service.

2. We have the right to modify or supplement this Agreement in light of changes in internet technology, business development, and applicable laws and regulations, and will make such modifications or supplements public by means of announcements or notices on the Service interface, on our official website, or by other reasonable means.

3. Once the revised Agreement is published, it shall take effect as of the effective date specified in the announcement. If you do not agree with the amendments, you shall immediately cease using the Service; if you continue to use the Service after the Agreement has been amended, you shall be deemed to have fully read and agreed to accept the amended Agreement.

II. Scope of the Service and “As Is” Provision

1. The Service includes the application and/or related online services, functional modules and other services that we provide to you, the specifics of which are subject to the actual content provided by us.

2. You fully understand and agree that:

(1) In order to better provide services to users, we are entitled to adjust, update or optimize the contents of the Service, including but not limited to functions, interfaces, performance and interaction methods. During such adjustment, update or optimization, the Service may be temporarily interrupted, functions may be changed, or the Service may even cease to be provided, all of which fall within the scope of normal business operations.

(2) We have the right, at our sole discretion and based on our own operational arrangements, to decide whether to continue providing the Service or any part thereof, or to suspend, discontinue or terminate the Service.

1. The Service is provided to you on an “AS IS” and “AS AVAILABLE” basis. We make no express or implied warranties as to the applicability, continuity, accuracy, reliability, error-free operation, uninterrupted operation, or absence of other harmful components of the Service.

III. Risk Warning and User’s Self-Responsibility

1. You fully understand and agree that:

(1) When using the Service, you shall ensure the safety of your own and others’ personal, property and information, remain aware of your surroundings and usage scenarios at all times, and use all functions reasonably and with due caution.

(2) When using the Service in circumstances involving physical activities, driving, operating machinery, being in a hazardous environment, or any other situation that may affect safety, you shall give priority to safety and, where necessary, stop using the Service.

(3) You shall independently assess, in light of your own health condition, whether you are suitable to use the Service. If you experience any physical or psychological discomfort while using the Service, you shall immediately stop using it and seek medical or professional help in a timely manner as needed.

1. You undertake that, in the course of using the Service, you will comply with applicable laws and regulations as well as public order and good morals, and will not use the Service to engage in any illegal or non-compliant activities or any conduct that infringes the legitimate rights and interests of others. You shall bear all responsibilities arising from your own actions or from any disputes between you and any third party.

2. If your violation of any law, regulation or provision of this Agreement results in any claim, lawsuit or administrative penalty against us by any third party, you shall bear the corresponding liability and compensate us for all losses incurred thereby (including but not limited to reasonable attorneys’ fees, notarial fees, litigation costs, etc.).

IV. Network and Technical Risks, Data Risks and Limitation of Liability

1. You fully understand and agree that:

(1) There may be circumstances beyond our control or reasonable foresight, such as application failures, system updates or upgrades, unstable network environments, third-party attacks, viruses, malicious programs, hardware failures, power outages, force majeure events, policy changes or other factors, which may result in the Service being unable to operate normally or being subject to restrictions, or may cause abnormal or lost data.

(2) You shall take reasonable and necessary measures on your own to protect the security of your terminal devices and data, including but not limited to regular data backup, installation of antivirus software, and strengthening of password management.

1. We do not warrant that:

(1) The Service will fully meet all of your requirements;

(2) The Service will be uninterrupted, or that its timeliness, security, accuracy, completeness or stability is guaranteed;

(3) Any defects or errors in the Service can or will be corrected.

1. To the maximum extent permitted by applicable law, you understand and agree that:

⠀(1) We shall not be liable for any direct damages, indirect damages, loss of anticipated profits, data loss, business interruption, emotional distress, or any other form of damage or loss arising from your use of or inability to use the Service, unless otherwise mandatorily required by law or where such damage or loss is caused by our willful misconduct or gross negligence.

(2) Even in cases where we are legally required to assume liability, our total liability to you shall be limited to the total amount of service fees actually paid by you to us for the use of the Service during the twelve (12) months preceding the occurrence of the event giving rise to the liability. If the Service is provided free of charge, our total liability shall be limited to the minimum extent permitted by law.

1. The Service may contain or link to content, products or services provided by third parties (including but not limited to third-party applications, websites, advertisements, interfaces or plug-ins). With respect to such third-party content or services:

(1) We provide access solely for your convenience and make no express or implied warranties as to their legality, security, authenticity, validity or suitability;

(2) Any disputes, controversies or losses arising between you and the relevant third party shall be resolved solely between you and such third party, and we shall not bear any joint or several liability in this regard.

V. Interruption, Suspension or Termination of the Service

1. You understand and agree that, under any of the following circumstances, we have the right, under the premise of compliance with applicable laws and regulations, to interrupt or terminate the Service in whole or in part without assuming any liability for compensation to you:

(1) As required by laws, regulations, judicial or administrative authorities;

(2) If you violate this Agreement or relevant usage rules;

(3) For security reasons or other necessary circumstances (including major system maintenance, upgrades, etc.);

(4) Where we adjust, suspend or terminate the Service based on our business strategies.

1. For any interruption or termination of the Service caused by the above circumstances, we will, where practicable, give notice through reasonable means based on the actual situation, but shall not be liable for any direct or indirect losses arising therefrom.

VI. Force Majeure and Other Exemptions

1. If the Service is interrupted, delayed, obstructed, subject to data loss, system crashes or other defects due to force majeure or other reasons beyond our reasonable control (including but not limited to natural disasters, war, strikes, governmental actions, policy adjustments, technical controls by telecommunications authorities, hacker attacks, major virus incidents, failures of third-party services, etc.), we shall, to the extent permitted by law, be exempted from liability, but will use reasonable efforts to mitigate the impact on you.

2. Without violating any mandatory provisions of law, we shall not be liable for any losses arising from:

(1) Your failure to use the Service in accordance with this Agreement or the usage instructions;

(2) Service abnormalities or data damage caused by your terminal device, network environment, operating system, third-party software or similar reasons;

(3) Your voluntary disclosure of key information to third parties, or losses caused by your improper safekeeping of such information.

VII. Miscellaneous

1. If any provision of this Agreement is held to be invalid or unenforceable in whole or in part due to a conflict with applicable laws, such invalidity or unenforceability shall not affect the validity or enforceability of the remaining provisions of this Agreement, which shall remain binding on both parties.

2. The headings of the provisions of this Agreement are provided for convenience of reading only and shall not affect the meaning or interpretation of the provisions themselves.

3. Unless otherwise expressly agreed, this Agreement constitutes the complete agreement between the parties with respect to the Service and supersedes any prior written or oral agreements reached between the parties regarding the aforesaid matters.