iLife™ X620 Vacuum Cleaning Automatic Sweeping Clean Floor Cleaner with GPS & Virtual Wall ILIFE x620 is specially designed for hard floors ( wood/tile/mable/laminate). With a smart water tank installed, X620 pull deeper dirt and grime off your floors and maintain them Gleaming every day. NOTE: To acheive a better cleaning performance, the mop pad needs to be cleaned after each use and vacuuming the floor firstly before using the mopping function.Put dust bin into the robot and remove the mop holder, start vacuuming sweeping mode in the initial cleaning round before mopping. With MAX mode, whopping suction easily picks up dust dirts debris.