Home: Get a USB charging wet and dry sweeping robot. USB: Charge the robot through the USB port, takes up to four hours. Dual-purpose: Dry and wet mopping with one machine and dual-purpose floor maintenance. Colours: Available in either black or white. Dimensions: 23cm x 6cm. Cleaner: The sensitive sides adjust the direction and make U-turns after collisions. Low-noise: Works quietly to keep your peace of mind. Usb Charging Wet & Dry Sweeping Robot | Black | Living Social