Keeps on Cleaning- Braava"s rechargeable battery cleans for up to 3 hours dry sweeping on a single charge, or up to 2 hours wet mopping * Knows where not to go- Braava"s smart sensors avoid stairs, area rugs and raised transitions to carpet * Pet-Perfect- Braava is ideal for picking up pet hair every day, but its whisper-quiet operation means your pets won"t be bothered while Braava cleans * Cleans Edges- Perfect Edge technology allows Braava to clean right along walls and edges, and around chair legs and other obstacles for a complete clean * Quiet operation and compact shape. Sweeps and mops hard surface floors. Sweep and Mop Mode.