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As one of its Black Friday ad deals, Best Buy offers the iRobot Roomba 891 App-Controlled Self-Charging Robot Vacuum Cleaner for $299.99 with free shipping. That's $150 off list, $30 under last month's mention, and the lowest price we've seen for this model. Deal ends NOvember 11. Features include:

3-stage cleaning system

tangle-free brushes

compatibility with iOS or Android devices, as well as Alexa and Google Assistant