This robotic cleaning appliance helps keep a dirt free, healthy home. On a single charge, Mint Plus provides up to 4 hours of dry sweeping (2.5 hours wet mopping) on hard surface floors. Forget your traditional mop and broom, this device uses NorthStar 2.0 technology, which acts like an indoor GPSâ€”taking into account the amount of space itâ€™s covered and where it still needs to go. Hence, human assistance isnâ€™t needed. It sweeps and mops using popular cleaning clothes, such as Swiffer brand Dry and Wet Cloths and other similar products.