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User manual iRobot Roomba 500 (English - 36 pages)
CrunchDeals: Roomba 500 robotic vacuum for $199 | TechCrunch
iRobot Roomba 500 and 600 Series Testing & Diagnostics - YouTube
Amazon.com: Odashen Side Brush Motor Module for iRobot Roomba 500 600 700 800 900 I3 Series Robot Vacuum Cleaner (Replacement Motor Module + Side Brush +Screwdriver) : Industrial & Scientific
Comparison of Roomba 500 Series Robots | Robot Reviews
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Spare parts and spare parts for iRobot Roomba 500
iRobot Roomba 500 Series Repair - iFixit
Comparison of Roomba 500 Series Robots | Robot Reviews
New Roomba 500 Series with Remote Control and Modular Design | WIRED