The Dolphin dx4 by maytronics robotic automatic swimming pool cleaners scrubs, brushes, vacuums and filters the entire pool - floor and walls. Large self-contained inner filter bag, collects dirt, debris and even dust particles. The pool cleaner is a state-of-the-art most advanced seld-learning scanning program, optimizing pool coverage. The Dolphin Climbs and cleans your pool walls. Low voltage - low energy consumption. Equipped with caddy for handling and storage. Warranty 36 months - spare parts and labor.