Suction power: 240W | Bin capacity: 0.75 liters | Battery life: 60 min | Weight: 6.6 pounds | Charging dock: No Levoit's latest LVAC-300 stick vacuum beat out our previous pick in this category ...

With the employment of smart meters, massive data on consumer behaviour can be collected by retailers. From the collected data, the retailers may obtain the house-hold profile information and ...