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description: name: 3-in-1 rechargeable smart vacuum cleaner body lithium battery: 3.7v 1200mah working time: about 90minutes charging time: about 180 minutes cleaning area: 150m2 suction: 1800pa noise: <40db capacity: 400 ml product size; 28*28*6.8cm specifications: applicable to the ground: flat ground such as marble, tile, wooden floor, etc. function: one-button start, sweeping, mopping, vacuum cleaner, usb charging, universal driving, automatic avoidance obstacles, anti-drop, l...