Brace yourself for the superior cleaning experience with this popular powerhouse pool cleaner. The Dolphin M400 robotic pool cleaner with Wonder Brush is suitable for smooth pool surfaces, and cleans the walls, floor and waterline with advanced navigation for optimal pool coverage, regardless of pool shape, slope or obstacles. The M400 is Always Connected by the MyDolphin Plus app, so you always have control of your robot in your hand from anywhere.