i Clean your floor automaticly while you enjoy life.
ii Stair avoidance detector
iii Non-marring bumper
iv Virtual wall detector
v wall following sensor
vi It keeps your floor clean between periodic deep vacuuming.
vii Self-adjusting cleaning head automatically traverses uneven floor transitions as it cleans carpet, hardwood, linoleum, and tile.
viii Easily slide out the bag-less particle bin to discard the dirt that it picked up
ix With side brush,flat design,rechargeable batteries,adaptor