Neato Botvac 75 Robot Vacuum Patented Neato Technology-Laser-guided navigation system scans and maps the room, plans and methodically cleans-instead of just bumping around Deep Cleaning Brush System-Heavy-duty blade brush hugs walls; Precise edge cleaning side brush makes sure no specks of dust are left behind Comes with heavy-duty blade brush and two high-performance filters Automatically goes from room to room; when it needs more juice, it goes to its charging base then returns to where it left off and finishes the job Detects obstacles; Neato Botvac sees, senses and responds to furniture, toys and stairs, carefully moving around them, without missing a spot Patented Neato Technology-Laser-guided navigation system scans and maps the room, plans and methodically cleans-instead of just bumping around Deep Cleaning Brush System-Heavy-duty blade brush hugs walls; Precise edge cleaning side brush makes sure no specks of dust are left behind Comes with heavy-duty blade brush and two high-performance filters Automatically goes from room to room; when it needs more juice, it goes to its charging base then returns to where it left off and finishes the job Detects obstacles; Neato Botvac sees, senses and responds to furniture, toys and stairs, carefully moving around them, without missing a spot