The maker of the Segway scooter unveiled the second generation of its self-balancing electric one-person vehicle. The redesigned scooter allows the rider to steer by leaning to the right or left, rather than by turning the handlebars. It also features a wireless electric key and alarm system. The scooters feature two side-by-side wheels, and are ridden in a standing position, with the rider grasping handlebars. A gyroscope provides balance, making it fairly easy to remain in the upright position.