Answer:
Speakers.
Explanation: Cause they only output sound, and are devices, further more they are not used to output images, like how could speakers output images using sound? They can't.
Here's the official definition:
It is generally a long or extreme-long shot<span> at the beginning of a scene indicating where, and sometimes when, the remainder of the scene takes place. </span>Establishing<span> shots were more common during the classical era of filmmaking than they are now.</span>
The answer is the Transition element.
A slide transition in PowerPoint occurs when you move from one slide to another during a presentation. You can control the speed (time spend on a single slide before advancing to the next). We use set duration to set the transition speed. To set the transition speed to a shorter or a larger duration, select the slide and click on the Transitions tab in the Timing group. In the Duration box, type the number of seconds that you want.
