Like everyone I also purchased this AntVR and thought this is a Virtual Reality Headset but it’s not these are better called Smart Glasses because these have only 100°degrees view. AntVR Headset has nothing to do with Virtual Reality. Like everyone I seen the advertisement of Lenovo k4 note with this AntVR and I purchased these Headset with Lenovo k4 note. Pros- solid buid, works with any mobile. Cons- It is not a VR Headset, Offers only 100°degrees view and not so cheap for its features. I trusted Lenovo and they disappointed me. I used this AntVR and it’s started pain in my chicks after 30 min. And please don’t use any VR Headset for longer time it can be bad for your eyes. Do not purchase this AntVR go for any other VR which has better view