*Automatic recharging :If the battery is about to be run out,the cleaner will automatically stop and               seek charge base plate for charging             *computer guidance system:which can plan the cleaning route automatically without any manual intervene.             *Virtual wall: it can easily limit the operating areas of the robot vacuum cleaner             *cleaning along the walls or furniture             *Flexible side brush:quarantee clean every corner in the whole room             *Mini Body:cleaner the floor under the bed sofa chair easily             *Anti-fall probes, with front case to avoid collision, so the self-protection is easily realized.             *Easily slide out the bag-less particle bin to discard the dirt that it  picked up