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FREE MOVE Technology：Prevent the probability of getting stuck under kinds of furnitures, sofa, wire winding area and above 1cm threshold area, bathroom and kitchen in order to get the uninterrupted cleaning experience, almost fully automative, no need for human intervention.
Professional housekeeper: 2600mAh lithium battery ensures at least 110min working time, quiet yet powerful 3-stage cleaning system 2200Pa strong suction eliminates dust, dirt, hair, fur and debris while being friendly with hardwood floors and carpets.
Uni-body Design: Unibody design makes the M501-A Pro mainframe stronger and reliable and the "FREE MOVE" technology let the M501-A Pro achieve with extremely high availability and ultra low failure rate.
Intelligent APP control: Clean and schedule from the palm of your hand. Works for iOS and Android 4. 0 above. Also includes remote control.
Even quieter: Optimized internal airflow structure produces the maximised suction power while minimized the noise that the baby still have good sleeping.
High Capacity: 0.6L dust box and 0.28L water tank.