Vacuum Cleaning Robot

My friend brought a small ‘Toy’ . First i thought that is something like cover but my friend told that is a vacuum cleaning robot,it can set the area that you want to clean or vacuum in your room,kitchen ,under sofa or somewhere,no need to brother or take care it as these robot start to the work.As these robot detect the power of the battery will running out,it will automatically going back to charger to charge the battery.

Here have video regarding these robot

For more details,visit irobot