No buttons and joystick needed to control it. All you have to do is simply move your body around. To move forward and backward the rider just had to lean his body slightly forward or backward. By leaning your body, the device will detect it and turn according to the direction the user is facing. It can travel up to 20Km/H.
Improvement:
1)Two small wheels were added to the front and back. When not in use, the two small wheel will be pushed down and the device was turned off, user can use it as a normal chair, when the device was turned on, the two small wheels was lifted up, the device is now balancing on the two larger wheels and is ready to go.
2) More comfortable seat and added protection to user with stronger material.
