Download apps from the app store on your mobile device that will take you on a Virtual 3D Reality ride! Whether it be riding a roller coaster, roaming the Jurassic era with dinosaurs or flying through space, you can do whatever your imagination desires. Fits comfortably on your head, and will accept all standard mobile devices that are 3.25" up to 6" in size. Easy to use for a fascinating journey into the Virtual Reality world. Your favorite tech enthusiast can experience virtual reality with these cool goggles. Download compatible apps on a smartphone, slide it into the viewer and get ready for a wild ride around the world and beyond.