I have the Glyph and you can focus each eye separately. No readers needed if you wear them to see your phone or tablet. It puts a 55" TV right in front of your face to give you a little perspective. Its micro HDMI input and comes with a cable. I use it with the Nvdia Shield.
They also work great for movies and some games. Awesome for flying but they are not like VR headsets. Light gets in from top and bottom. You can take off easily with them because you can see the drone on the ground in front of you. You can also peek out easily to get some perspective if needed.
I unboxed it here: