With a tangle-free pet hair care technology, focuses on picking up hairs, dirt, debris on hard floors | Low profile design to clean under beds, furniture where dirt hides. Ideal for hardwood, tile, laminate or stone. | Self-charging, programmable schedule, smart sensors for anti-bump and anti-fall. Runtime 90-100 mins | Easy operation with remote control, or one touch auto clean button on robot. | Tip: Easy maintenance, empty dustbin and clean the filter after each use. Replace filter every month. | A 12-month and U. S. customer service team provides you with peace of mind and great service