... type 2.Manual charge 3.two side brush 4.mop function lower noise 5.adjustable anti-drop sensor ultra-thin ... 5-18.5 CM/SECWeight:1.53KGSMain Feature1,economic type2,mop function3,manual charging4,low noise(less than 50db)5, ... and delicate design10,energy conservation11,super artificial memory functions: intelligent vacuum cleaner can continue to finish remaining cleaning task after charging completed ...