Model: EXVAC 550 LANA
Laser navigation&camera and water tank (floor mopping while cleaning)
Designed for multiple floor conditions: wooden floor, carpet, marble floor,tile, cement floor
Multiple cleaning modes: Zigzag, Auto, Edge,spot cleaning, turbo
Sweeping and mopping integrated;
Two main brushes & two side brushes: 
LED screen & 2.4Ghz remote control & self-charging; 
2200mAH lithium battery - 2 hours working 3 hours charging;
Ultrasound anti-collision