Vacuum cleaner: Get a USB robot vacuum cleaner in black or white! Wheels: With 360° universal wheels for more flexible and stable movement. Suction: With a strong suction to quickly clean dust, hair and other debris. Re-charge: With a rechargeable battery that charges via the included USB cable. Charging time: Charge for three hours for 90 minutes of working time. Anti-collision: Designed to prevent collisions, with a soft bumper to prevent damage. Usb Robot Vacuum Cleaner Living Social Living Social