Compared with the famous virtual reality wearable gadget Oculus Rift, Google cardboard looks like a stumble packing paper at first glance. However, its simplicity makes it become one of the biggest surprises in Google I/O press event. Without any special hardware, you can directly fold the cardboards into its default shape. Just putting your android device, or iphone into it, you can start a virtual reality tour.
This basic version of Google Cardboard is very simple and almost ready to use. Just download related app in the google app store, and begin the very VR tour!