It is worth starting with the fact that the device knows the way, thanks to the connection to the GPS. Also, the device has a wired connection to a sartorius muscle that passes through the thigh and “responds” to the turns of the foot.
In the event of a deviation from the route, the electrical impulse stimulates the sartorius muscle, and it makes a “dovorot” of the leg in the desired direction. And does this without causing any unpleasant sensations.
According to one of the researchers of Max Pfeiffer, such a device could be useful for long-distance runners over open terrain at the intersections of unfamiliar paths. The system can be oriented to any user.
In the future, the device can be used for evacuation from places of mass congestion of people or elderly people experiencing problems with orientation in space.