Robot vacuum cleaner – Capacity 0.4 L – Obstacle sensors – Anti-tangle system – Soft touch bumpers – Thanks to PrecisionVision navigation technology, the robot vacuum has a clear view of obstacles and avoids them in real-time while completing the job. Three-stage cleaning system with suction power 10 times greater than the Roomba series 600 cleaning system. With Dirt Detect sensors, cleaning focuses on areas that need it most. When the battery is low, the robot uses a smart recharge and resume system. Thanks to the iRobot Genius platform, you can set the Roomba j7 to start cleaning when you leave home and stop when you return.