Adjustable handle and a long lasting battery make it the perfect machine to work in narrow spaces with high productivity. Eco Select permits a decrease energy consumption and increase running time of 20% in every day cleaning operations. Noise level is down to 2Db allowing cleaning operations even in sensitive areas. Brush motor consumption reduced by 20%. Suction motor consumption reduced by 20%. Reduced water consumption. Reduced brush wear. Reduced carbon brush consumption on motors. Operating system choice.