RoboVac cleans up to 100 mins* per charge, so you get to enjoy a completely clean home from a single charge. Large wheels roll over carpets and climb over door ledges to get to the mess. 9 anti-collision infrared sensors help RoboVac to avoid bumping into obstacles so it can clean non-stop without help from you. Specialized dual-Hall Sensors detect Boundary Strips to ensure RoboVac only cleans the areas you want. RoboVac uses drop-sensing technology to avoid falling downstairs and off of ledges.