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
Step 1:  Open the  Settings
Step 2:  Tap on  System
Step 3:  Tap on  Accessibility
Step 4:  Tap on  TalkBack
Step 5:  Enable  TalkBack
Step 6:  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