1) Device 2) Prompter 3) Teleprompter 4) Teleprompter brand 1) Teleprompter 
A system of lenses, mirrors and angled glass in front of a studio television camera lens which displays a newsreader’s script as a scrolling image so they can read it without looking down at their script. Also known as a Teleprompter.
autocue A device showing a speaker the text of what he/she has arranged to say.