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I tried using the robot vacuum cleaner "Rumba 630" of the 40,000 yen range at home Report - GIGAZINE
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iRobot Roomba 630 robot vacuum cleaner | Vacuum Cleaners | Gumtree Australia Yarra Area - Fitzroy | 1322768020
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User manual iRobot Roomba 630 (English - 32 pages)