Rollkers

Rollkers is a "personal transportation device" developed by a French-based company of the same name.

The Rollkers attach to the bottom of your shoes and provide the means to reach speeds of up to 7 mph by walking, said Paul Chavand, the CEO.

"You cannot fall," said Chavand, and balance is maintained by a controller system and electric motor. "No training is necessary," he said.

It may be a year or two before the product gets to market, and Chavand said he expects consumers will be first to buy it, but businesses, such as warehouses, will be interested in the technology.