This is not worthful product.i already bought this 6 months ago and after using it some time I felt like it hurts my eyes so I am advicing you to not buy this instead buy good quality product.
The build quality of this VR is very cheap and the adjustment are not very accurate.sometime they autometicaly changes due to pressure.and lens are not good it does not focus as required some time it focused very much and hurts eyes.I am not able to watch more than 10 min with this VR.
My advice is not to go with this one.