2 I think because 2 I think is binary I’m sorry if this is wrong
The most common was is your phone
<span>Google
Glass was interesting; a personal screen overlaid onto the real world,
with 'augmented reality' ideas. The Nintendo 3DS was the first 'no
glasses' portable 3D system.
So I predict Google 3D Glasses with built in Dolby 9.1 sound emulation. </span>
