Planning path: Cooperate with the measurement system of the sweeper to assist in calculating the travel distance through its own color change, so that the vacuum cleaner can plan the cleaning route in an orderly manner and avoid omissions. High wear-resistant rubber material: high-quality rubber is used to make tires, which has strong wear resistance, is not easy to wear and deform for long-term use, reduces the frequency of replacement, and reduces the cost of use. Adapt to complex terrain: It has certain shock absorption and adjustment capabilities, able to smoothly cross thresholds, edge of carpets, etc., ensuring no interruption during the cleaning process and covering more corners. Obstacle crossing: The specially designed driving wheels can cross small obstacles such as thresholds and wires, expand the cleaning range, and will not stop working due to small obstacles. Vacuum Cleanerfittings ， Compatible ForXIAOMI ，Robot Part Unit Wheel FanSpare Parts