Review on OPTOSLON Virtual Reality Headset: Immerse Yourself in Mobile Games and Movies with 3D VR Glasses for iPhone/Android Phones (4.7-6.2 inch), Including iPhone XS/X/8/8Plus/7/7Plus by Randy Albright

These VR headsets are really just Google's famous cardboard holders. They are a plastic version of a cell phone holder. The trick is that the lenses it contains allow you to focus on two images coming from a mobile phone. The images come from software that divides a scene into scenes. It's a rudimentary virtual reality, but it has decent entertainment value.