Direct Drive System The advanced Brushless DC motor directly drives the drum without belt and pulley. Built-in Heater Internal heater automatically heats the water to the best temperature on selected cycles. Child Lock The Child lock prevents children from pressing any button to change the settings during operation. More economical by Intelligent Wash System Intelligent Wash System detects the amount of load and water temperature, and then determines the optimum water level and washing time to minimize energy and water consumption. Low noise speed control system By sensing the amount of load and balance,it evenly distributes load to minimize the spinning noise level.