Virtual reality googles used in conjunction with your cell phone. Got mine on sale at Canadian tire for $24.99 which was half price. They came with a hand held game controller as well.
I find these googles to be uncomfortable even after trying to adjust them I am not sure how many times. This could be just the shape of my head but for me, not as comfortable as I would like. The other issue is how they hold your phone in place. If you have a flat bottom cell phone such as an IPhone your in luck. I have an LG G3 which has a slight curve to it so if not carful the phone pops out of the holding cradle.
Watching VR content after adjusting focal and pupal distance was good and the Bluetooth hand held controller worked well after figuring out which buttons needed to be used for the game. Some games don't tell you for some reason which is aggravating.
All in all, if you can get these on sale go for it but I don't think I would pay full price.