Hi, I am a university student who loves the latest devices. I introduced an innovative wheelchair called Ibot. Ibot have four-wheel to provide balance. Ibot also moves in two wheels.
With Ibot, you can move in stairs, snow, sand, grass, and gravel because it wheel is flexible. User easy to control it by remote. For driving up and down steeper inclines, and over a wide variety of terrain. Climb up and down curbs.

Check this video