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