I have purchased 5 of these to make a Virtual Reality station in my classroom. We can't wait to get started! I only wish I could afford 22 of them. The students will bring their own smartphone or iPod Touches. All you really need is the ability to get onto the wifi--no cell service is necessary. If you don't know what Google Cardboard is all about, here's a slideshow to explain what it is, what you need to get started, what apps are recommended, and much more.