Make sure this fitsby entering your model number. Laser Navigation, Multi-Level Mapping, Invisible Wall and No-Go Zones: Precision laser navigation provides fine control of where the robot goes across up to 4-levels. 2000Pa Suction: Powerful enough to easily lift dust from floors and drag it from carpets. App Control: See where S4 Max has been, a map of your home, control schedules and suction power, and more from your phone. S4 Improved: Now with better carpet cleaning performance, better climbing ability and bigger dust bin. Large Battery: A large battery means long cleaning times, more than enough to tackle larger homes.
