Roborock Saros 10 with Auto Water Refilling and Drainage System means the dock will automatically fill and drain water. Please check the installation environment before purchasing. Hot Water Dock Self-Cleaning, 176°F Dynamic Mop Washing, 140°F Heated Air Drying, Intelligent Offline Voice Control, Matter 2.0, More Thrid Part Voice control Support, Pet-Friendly Features, 0% Hair Tangling Brush, Edge to Edge Full Coverage Cleaning, Smart Elevation Chassis, RetractSense 360°Navigation System, 3.0 Al Algorithms Obstacle Recongition, Intelligent Dirt Detection.