What Is Talkback ???
TalkBack Is An Application Of Androiod Device Which provides spoken feedback so that
you can use your device without looking your screen.
This Can be helpful for people who are blind or have low vision..
Navigation of the screen when TalkBack is on…(Oppo)
1.Swipe left or right to move beetween itmes.
2.Drag to finger to scroll.
3.Double tap to activte an items.
Step To Activate TalkBack In Samsung
Step-1. Clik On Setting
Step 2.Chose Accesssibility
Step 3.Scroll down under service chose talkback
Step 4. Tap to activate In thr right upper corner of the screen
Step 5. A Warning popup display click on OK
Thats It All Are Set..