Google Talkback blind or have impaired vision service that helps people together their phones and devices work easily. It provides feedback of speaking, listening and Vibration (Vibration) added to your phone. It is a system that is already installed upon mostly handsets and service whenever Accessibility be upgraded, updated. It only becomes active when you're upon Accessibility to.
It is activated when you activate Accessibility.
Steps to activate Accessibility:
1. Go to Settings
2. Accessibility choose
(Android 3.2 and earlier)
3. Activate the Czech box Accessibility
4. Activate the Czech box TalkBack
3. TalkBack choose and switch enabled
4. back to check and explore-by-touch enabled