1. The universal wheels in the front is helpful to change direction quickly which actually realizes easily 360-degree rotating. 2. Dust bin on button new design it will open with one press convenient and pollution-free! 3. Auto vacuuming smart cleaning avoiding barriers and anti-falling automatically. 4. Edge cleaning clean the dust besides wall and in the corner into dust box! Powerful and effective! 5. Sterilization mites it can do cleaning and meanwhile kill the bacteria and micro-organisms effectively to protect your family. 6. Ultra thin body 75mm can easily drill into the bottom of your furniture and bed to clean. 7. Air purification the after body will release fragrance constantly refresh the environment and purify the air! (The freshener is not included in the product) 8. Hi-efficiency battery using nickel metal hydride batteries long life-span large capacity pollution-free and it can work 70min after charging very energetic and strong endurance!