1. Basic function page (welcome page/connection matching/technical support)     Welcome page: For the page after entering the app, the app will automatically jump to the next page after the app is launched.     Connection pairing: guides the user to open the search for the Bluetooth device, and the search results are displayed in a list.     Technical support: In order to serve users at any time, the customer service function is placed in the system interface to facilitate user assistance. 2. Co