Product Material: ABS + Electronic Components Product Packaging: Color Box Endurance: 90 minutes Charging mode: USB charging Dust box capacity: 360ml Battery capacity: 2000 mah Suction capacity: 2800 pa 1. Wet the water tank with a special mop and stick it on the bottom of the tank. 2. Fill the tank with water, cover the tank and dry the water droplets on the outside. 3. When the machine is suspended in standby mode or closed, turn the machine on its side and align the connecting column