Roomba 770 Vacuum Cleaning Robot removes dirt, dust and pet hair on its own. It features Dirt Detect Series 2 technology to concentrate cleaning in the dirtiest areas and a Full Bin Indicator that lets you know when the bin needs to be emptied. Using iAdapt Responsive Navigation Technology, Roomba thoroughly vacuums the entire floor, including hard-to-reach spots under furniture. Dual HEPA air filters stop fine dust from circulating in your home.