1.intelligent robot cleaner, automatic working 2.low noise , protable 3.self recharging 4.pretect detector 5.virtual wal Item No.Vacuum Duration, Recharge timeDust Tank CapacityNoise DBWeight and PackageMain FeaturesKRV20860-85min,3-4hours350ml58db5.5kgs/pc,giftbox49*15.5*41.5cm4pcs/carton60*45.5*57.5cm 20gp 820pcs,40gp 1620pcs,40hq 1900pcs14.4v,25w, Anti-burning shell5IN ONE (5 cleaning programs ...