1. thin body : 27 CM * 8Cm :  Easily go under the bed, sofa and other furniture to pick up dander,dust and pollen  
2. Lower noise : 55dB :
3.  Double side brush
4.  anti-drop anti-impede sensors  
5. One-key pression to take off the dust bin
6. Flexible bumper in front protects the machine also the furniture
7.   Auto-stop when being picked up
8 .   Four cleaning routes: random, spiral, along the wall, polygonal
9. Motor:26W;100-240V, Unit 14.4V/2000 li-mAh;