Infinuvo CleanMate QQ-2 PLUS II Robotic Vacuum Cleaner with Sonic Wall, Scheduler, Home Charing Base & LED Display Set up your own daily cleaning schedule for up to 7 days a week Automatically return to charging base for self-recharging when low on battery power Use Sonic Wall to confine CleanMate's cleaning area. UV light provides disinfection for your floor and kills bacteria, germs and allergens while cleaning Work well on hardwood, tile, linoleum floor and low profile carpets