The first rewarded product offering is rewarded video, which is something that many developers out there have manually implemented into their apps and games. The modus operandi of such video is rather simple: it would reward you with in-game currency, virtual goods or other benefits in exchange for your views. In the example shown below, users were asked whether they want to double their game score just by watching the rewarded video :

For developers out there, the new Rewarded Products format is currently available in open beta through the Google Play Console. (Source: Android Developers, Engadget, TechCrunch. Image: Android Developers)