If TalkBack is enabled on the OnePlus smartphone, we get voice feedback on every item on the screen and can theoretically operate the smartphone without looking at the display.

After activating TalkBack, the control changes as follows:

Android 10 | OxygenOS 10.0
Enable TalkBack -  Open the  Settings
Enable TalkBack -  Tap on  System
Enable TalkBack -  Tap on  Accessibility
Enable TalkBack -  Tap on  TalkBack
Enable TalkBack -  Enable  TalkBack
Enable TalkBack -  Confirm with  Allow
  1. Open the Settings
  2. Tap on System
  3. Tap on Accessibility
  4. Tap on TalkBack
  5. Enable TalkBack
  6. Confirm with Allow

OnePlus Instructions