The VBOT Robotic Vaccuum uses its smart programming to move about on it's own and get in and out of the tightest places to clean yoour floors. The built-in smart technology automatically determines one of four preprogrammed patterns; Random mode for tight spaces, Spiral mode for large open areas, an Along The Wall mode for room perimeters and a Zig Zag mode. Internal dust bin captures dust and dirt for easy disposal. *Cleans wood, tile and carpeted floors *Detects and automatically avoid stairs *Whisper quiet while opperating *Rechargeable batteries included