Amazon.com: iRobot Roomba i7+ (7550) Robot Vacuum with Automatic Dirt Disposal-Empties Itself, Wi-Fi Connected, Smart Mapping, Compatible with Alexa, Ideal for Pet Hair, Carpets, Hard Floors, Black (Renewed) : Home & Kitchen
New Roomba i7+ Has Persistent Maps, Selective Room Cleaning, and Automatic Dirt Disposal - IEEE Spectrum
User manual iRobot Roomba i7+ (English - 19 pages)
iRobot Roomba i7+ review: smarter than the average robot vacuum - The Verge
iRobot Roomba i7+ (7550) Robot Vacuum with Automatic Dirt Disposal - Empties Itself for up to 60 Days, Wi-Fi Connected, Smart Mapping, Works with Alexa, Ideal for Pet Hair, Carpets, Hard Floors - Amazon.com