iRobot's Popular Roomba Vacuums are the Cheapest Ever on Amazon
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Amazon.com - iRobot Roomba E5 (5150) Robot Vacuum - Wi-Fi Connected, Works with Alexa, Ideal for Pet Hair, Carpets, Hard, Self-Charging Robotic Vacuum, Black -
Amazon.com - iRobot Roomba i7 (7150) Robot Vacuum- Wi-Fi Connected, Smart Mapping, Works with Alexa, Ideal for Pet Hair, Works with Clean Base -
Amazon.com: iRobot Roomba j7 (7150) Wi-Fi Connected Robot Vacuum - Identifies and avoids Obstacles Like pet Waste & Cords, Smart Mapping, Works with Alexa, Ideal for Pet Hair, Carpets, Hard Floors, Roomba