Vacuum cleaner: Get a USB robot vacuum cleaner in black or white! Anti-collision: Designed to prevent collisions, with a soft bumper to prevent damage. Features: With a strong 2000PA suction, terrain detection system and less than 55db noise. Re-charge: With a rechargeable battery that charges via a USB cable (not included). Wide area: Can clean a large area up to 250 square metres. Slim design: With a 7mm slim design so it can work in smaller spaces. Usb Robot Vacuum Cleaner | Black | Living Social