However, if you can figure out the curves (topography) on the front and back of the glass, you can write computer algorithms to correct for them.

FORBES: Magazine Article

When the device is turned on, a blue light on the front will start flashing once you've managed to figure out the whole pairing thing.

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On its front was the organization's seal--a toga-swathed figure holding a torch in one hand and a coin in the other.

FORBES: Magazine Article