* 4 steps cleaning mode: 1600RPM mopping with clean water, strong power vacuum 4000Pa, dust & sewage suction at the same time, bottom scraper, no water stains left. 

* separate water tank for clean water & sewage, mopping with fresh water. 

* laser navigation, accurate map construction, segment planning

* auto cleaning, internal brush cleaning & drying system

* Apps control: scheduling, monitoring, suction setting & map planning.

* voice reminder: instruction for operation, water level, power level.

* used with special detergent, bacteriologic 99.9%