What are they?
• Google Display ads made up of a series of images, text, logos and/or videos.
• They are completely responsive, meaning that they can expand and shrink to fit all available ad slots within the display auction.
How does this work?
We can input 5 Short Headlines, 1 Long Headline and 5 Descriptions along with 15 images for RDAs. Google outputs the best performing combination through the use of various machine learning and bidding signals”
Example Responsive Display Ads on Google: