Turn off talkback Moto G Stylus | turn off lady voice | phone talks when I touch the screen HD

What to do if a voice ramdonly it has been activated in Moto G Stylus Smart phone. Talk back it is a feature mainly for the blind people that allows them to use the phone without looking at the screen. - When talk back, screen reader, feature for the blind and low vision person it is on, a lady voice plays when the finger it is placed on one element ot application on the screen of this smart phone. - when screen reader is on, a green square or green selection it is arround the app or folder.