1.1 This application is a Bluetooth earphone product service app that provides a series of services, including hardware connection and access to company product information. All illegal and explicit content is strictly prohibited within the app. Violators of community operation rules will be permanently banned.
1.2 The specific content of the services provided by this application is provided by the application's creators based on actual circumstances.
1.3 Unless otherwise expressly provided in this registration and service agreement, new products, features, and services introduced by this application are subject to the rules and regulations of this registration and service agreement.
1.4 This application only provides relevant online services. Except for this, devices related to relevant online services (such as personal computers, mobile phones, and other devices related to accessing the Internet or mobile networks) and the required expenses (such as telephone charges and Internet fees for accessing the Internet, mobile phone fees for using mobile networks) shall be borne by the user.
1.5 When you use our services, we may use the device's gyroscope, accelerometer, and gravity sensor to identify and determine the status of your device.
1.6 When you use our services, we will collect your personal information using the Umeng SDK. Specific information is as follows:

1.7 This application only provides relevant online services. Except for this, devices (such as personal computers, mobile phones, and other devices related to accessing the Internet or mobile networks) and the required expenses (such as telephone charges and Internet fees for accessing the Internet, mobile phone fees for using mobile networks) related to relevant online services shall be borne by the user.

2.1 User Account Registration

2.1.1 Users who register using this application's system can log in using their phone number, email, or system ID.

2.1.2 Users who log in using third-party partner websites can only use Chinese characters, English letters, numbers, underscores, and their combinations. The use of spaces, various symbols, and special characters is prohibited, and registration will not be allowed.

2.2 If it is found that a user's account contains inappropriate or indecent text, the right to cancel their user status is reserved.

2.2.1 Please do not register using the real names, aliases, stage names, or pen names of leaders of the party, state, or other public figures.

2.2.2 Please do not register using the names of national or other institutions.

2.2.3 Please do not register with names that are uncivilized, unhealthy, or contain words of discrimination, insult, or obscenity.

2.2.4 Please do not register names that may cause ambiguity, misunderstanding, or violate legal regulations.

2.3 User accounts belong to this application, and users only have the right to use them.

2.4 Users are responsible for ensuring the security of their passwords and accounts. Users are solely responsible for any losses or damages caused by activities using their passwords and accounts. This application is not responsible for any such losses. If users find that their accounts are used without authorization or encounter any other security issues, they should immediately change their account passwords and secure them if necessary. Please notify the application's administrators if required. This application is not responsible for illegal account usage due to hacking or user negligence.

2.5 Users promise to have complete intellectual property rights to all information they post or upload on this application (i.e., works defined by the "Copyright Law of the People's Republic of China," including but not limited to text, images, music, movies, performances, audio and video recordings, and computer programs), or have obtained legal authorization from relevant rights holders. If a user violates this provision and causes this application to be claimed by a third party, the user shall fully compensate all expenses incurred by this application (including but not limited to various compensation fees, litigation agency fees, and other reasonable expenses).

2.6 When a third party believes that information posted or uploaded by a user on this application infringes on their rights and sends a notice of rights to this application in accordance with the "Regulations on the Protection of the Right to Network Dissemination of Information" or relevant legal provisions, the user agrees that this application may independently determine and decide to delete suspected infringing information. Unless the user provides written evidence to eliminate the possibility of infringement, this application will not automatically restore the deleted information mentioned above.
(1) The network service system shall not be used for any illegal purposes;
(2) Comply with all network protocols, regulations, and procedures related to network services;
(3) Do not use this application's services for any actions that may adversely affect the normal operation of the Internet;
(4) Do not engage in any behavior that is detrimental to this application when using its services.

2.7 If a user violates any of the above rules while using network services, this application has the right to request the user to correct the behavior or take any necessary measures (including but not limited to deleting user-uploaded content, suspending or terminating the user's right to use network services) to mitigate the impact of the user's improper behavior.

3.1 Any website, organization, or individual who believes that this application or the content provided by this application may infringe upon their legal rights should promptly provide a written notification of rights to this application. They should also provide proof of identity, ownership, and detailed evidence of the infringement. After receiving the above-mentioned legal documents, this application will promptly disconnect the relevant content to ensure the legal rights of related websites, organizations, or individuals are protected.

3.2 Users explicitly agree that they will bear all risks and consequences arising from their use of this application's network services entirely on their own, and this application shall not be liable for this.

3.3 This application cannot guarantee that network services will necessarily meet the user's requirements, nor can it guarantee the timeliness, security, or accuracy of network services.

3.4 This application does not guarantee the accuracy and completeness of external links provided for the convenience of users. Moreover, this application shall not be liable for any content on web pages linked externally to this application that is not actually controlled by this application.

4.1 The copyrights of this application's unique logos, layout designs, and page layouts belong to this application and may not be copied or reproduced without permission.

4.2 Information obtained by users from this application's services may not be copied or reproduced without this application's permission.

4.3 All content, including product descriptions and images, in this application belongs to Shenzhen Dinghefeng Technology Co., Ltd., and may not be reproduced by anyone.

4.4 All user-uploaded content in this application represents the user's own stance and viewpoint. It is not associated with this application, and the author is solely responsible for any legal liabilities.

4.5 Intellectual property rights of the above-mentioned and any other content included in this service are protected by law. Without written permission from this application, users, or relevant rights holders, no one may use them in any form or create related derivative works.

To better protect your personal information, we have established a dedicated department for network security and personal information protection. If you have any questions or suggestions about this policy or your personal information while using Heylink Audio products, please contact us through the following contact methods:

Email: dhf_sz@163.com

Address: Building A6-20, No. 108 Lijia Road, Henggang Community, Henggang Street, Longgang District, Shenzhen City, Guangdong Province, China