Vacuum Sweeping Robot provides you the most convenient way to keep your carpets and hard floors clean. The extra-large dustbin easily holds a day's worth of dust. You don't have to worry about making it empty often. Powerful suction that picks up hair debris and dirt easily and efficiently is perfect for households with pets. Superior features: Upgraded sensors are quite suitable for anti-collision/drop, and can automatically return to charging dock when in low power. In addition, the robot equipped with smart infrared sensors can also avoid stairs and furniture. This makes the robot work between different types of floor climbs inclines and crosses doorsills easily. 2 cleaning modes, one is the powerful suction mode and another is low noise mode, especially the low noise mode is quite good for the quiet space with kids or older people with less than noise of 60 dB.