Nuck, nuck, nuck.

USB ports can be used to power many peripheral devices.

This USB Eye Massager must have been designed by Moe Howard of Three Stooges fame.


As the promotional material says:

USB Eye Massager is the latest-designed health care Product specially for
the Person which long time use their eyes, Such as the Computer operator.

http://www.engadget.com/entry/1234000600023712/