My own advice: do a reverse image search on the photos they send you.

FORBES: Connect

For all the shortcomings and failures of the old days of Wall Street regulation, what we have now is merely a reverse image replete with its own grievous shortcomings and failures.

FORBES: Break Up the Securities and Exchange Commission

Reverse-image TVs that let you watch your favorite show in the bathroom mirror while lounging in the tub and flipping channels via a waterproof, floating remote.

WSJ: Jeffery Deaver on Bathrooms Around the World | Traveler's Tale

For example, by clenching their fist a user could zoom into an image, while opening their palm would reverse the move.

BBC: Digits demo screenshot

The company also made its chips available in a variety of other electronics, such as security cameras, Sony PlayStation games and automobiles--to provide a rear image of what's behind the car (useful when moving in reverse).

FORBES: Magazine Article