How to listen to music without traffic using the Unicom King card?

The method to use the Unicom King card to listen to music without data is as follows: 1 Open the music app and choose the song you want to listen to for free. 2. Open the application for setting up the Unicom King card. 3 In the settings options, find "Network settings" or "Network agent settings". 4. Choose "China Unicom Wapi" in "Network Setting" or "Network Agent Setting". 5. Press the Save button. 6 Close the settings application and reopen the music application. 7. The app can now play music using the free data of the Unicom King card. It should be noted that different music applications may have different settings, but this method is generally applicable to most music applications. In addition, if you are using a mobile data network instead of a Wi-Fi network, you may need to close the music application before connecting to the data network.