remove blue square line around icons android

[Android Central Question]

I have a blue line in the shape of a box around all icons. It also went to voice assist during the night - I cannot get to settings or messages or anything.
Please help - thank you.

 

[B. Diddy]

Welcome to Android Central! Which phone? You might have turned on TalkBack by accident: https://support.google.com/accessibility/android/answer/6283677?hl=en&ref_topic=3529932

 

[April Tipton]

Try quickly pressing the volume up and power button together it all directs from your accessibility settings