1.economic type 2.mop function 3.two strong side brush 4.lower noise 5. ... /SECWeight:1.53KGSMain Feature1,economic type2,mop function3,manual charging4,low noise(less than 50db)5,with ultraviolet sterilization and fragrance6,four ... routes: random, spiral, along the wall, polygonal spiral7,cleaning automatically8,with obstacle, cliff and bumper sensitive sensor9,fashionable appearance, nice paint ...