Time Out New York Kids and Revolver magazine are the latest magazine to unveil covers that feature the technology known as mobile augmented reality, which allows readers to use their smartphones to access a video of the cover subject.

Time Out North America digital business director Marci Weisler explained the concept to Folio Magazine this way, “Augmented reality, in its simplest form, allows consumers to use their mobile devices to experience print products in a new and exciting way,” says  “An image that was once static on a page now comes to life–one that allows readers to see and hear the content for themselves.”

The August issue of Time Out New York Kids allows readers to use their smartphones to access a video of the award-winning chorus from Public School 22 in Staten Island.

On the cover of Revolver, a music magazine, readers can use their smartphones to scan a unique code on each special cover (there are 7) to unlock bonus videos, photos and interviews of rock band Avenged Sevenfold.

Other magazines that have experimented with augmented reality technology include Popular Science (its July 2009 featured an interactive 3D augmented reality magazine cover), InStyle magazine and Esquire among others.