You don’t have to spend a fortune to start exploring virtual reality. There are already plenty of affordable Cardboard headsets that let you use your smartphone to watch virtual reality and 3D videos. In fact, OnePlus is offering OnePlus Cardboard units for free. You will just have to pay the shipping cost.

The OnePlus Cardboard is simple to use and durable. It is compatible with most devices up to 6″ in size. You can find out more here.

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