1. First, please find the "Bi Li Bi Li" App in your mobile phone, click to enter the main interface, then select the Billie Billie avatar at the top left of the screen, and then click the Settings option in the new interface.

2. Step 2, we come to the new interface, please select the playback setting option.

3. Step 3: Please flip the interface, and then select the small window playback size option.

Step 4. Next, there are three size options in the screen, please choose according to your own needs.

Step five, we come to the new interface and click the small button.

6. Finally, for the larger mode, you only need to choose according to your own needs, and the operation is completed.