6.What are the button operation of M3 Pro?

Player mode: When the screen is on (not in the lockscreen page), hold or press the volume button briefly to adjust the volume, press the power button briefly to turn the screen off/on.

When the screen is off ( or in the lockscreen page): press the volume button briefly to adjust the volume; hold the volume button to skip to the next or previous track; press the power button briefly to turn the screen off/on.