At the end of the 2014 I/O keynote, google gave away a cardboard box, which turned out to be the google cardboard, or a simple DIY virtual reality headset
Google cardboard is a cheap virtual reality device that allows users to get access to the charm of the virtual reality by mobile phones
Let all people can experience 3D life easily

1. Pre-cut cardboard as unibody design, easily for all people DIY 
2. Compatible with smartphones from 3.5-5"
3. No NFC function as many mobiles do not support it, such as iPhone, Samsung Galaxy S3, Sony XperiaZ, etc. 
4. Pls download side by side format for movies and games from Youtube, Android APP Center,iPhone APP store,etc. 
5. Easy to assemble, need no more than 3 minutes to DIY
6. Eco-friendly material, can pass CE & RoHS
7. Cooperated with many big brands companies to make this product as a novelty gift, such as Ali Infrastructure, 

  MCON Group, Master Concept, INTI, etc.  

8. With three headbands