2. Sweep, suck and drag , solve a variety of garbage, dust, hair, paper scraps, stains encountered in 3. Easily control different material ground 4. 1800PA strong suction, multiple filtration system, deep cleaning, more powerful, dust, hair, soybean, melon seeds, biscuit crumbs 1. Intelligent one-key , intelligent technology, no need for tedious operation, one-key machine, so that clean return is simple 5. noise reduction, low volume clean, quiet