iRobot's Roomba 980 Wi-Fi robot vacuum now $300 at Amazon (Refurb, Orig. $600)
Roomba 980 review: vac your home from anywhere in the world
iRobot Roomba 980 robot vacuum review
Robotic vacuums make chores easier for busy families | Las Vegas Review-Journal
Amazon.com: iRobot Roomba 981 Robot Vacuum-Wi-Fi Connected Mapping, Works with Alexa, Ideal for Pet Hair, Carpets, Hard Floors, Power Boost Technology : Amazon Devices & Accessories