Accessibility features are designed to help people with disabilities use technology more easily. For example, a text-to-speech feature may read text out loud for people with limited vision, while a speech-recognition feature allows users with limited mobility to control the computer with their voice.
What is the use of accessibility option?
The Accessibility Menu is a large on-screen menu to control your Android device. You can control gestures, hardware buttons, navigation, and more. From the menu, you can: Take screenshots.