Record Videos Without Touching the Screen
On some devices, the volume buttons can interact with the camera while you’re recording.
Depending on the phone and camera app, pressing a volume button may control zoom or another camera function.
If your phone supports this feature, it can make recording more comfortable because you don’t have to constantly reach toward the middle of the screen.
Check your camera settings to see which controls are available.
3. Take Screenshots
On many Android phones, pressing the Power button + Volume Down at the same time