Fakir Robert Rs 740 Smart Robot Vacuum Cleaner : Model: Robert RS 740 Robot Vacuum Cleaner Vacuum Power: 3500 Pa Sound Level: 68 dBA Battery: Li-ion 3200mAh (Rechargeable Battery) Charging Time: 5 hours Dust Chamber Capacity: 680ml Water Tank Capacity: 350ml Wiping Function: 3 different levels of water flow adjustment for different floors Working Time: At maximum power: 50 minutes, at minimum power: 170 minutes Detection of Stairs and Corners: Yes Obstacle Detection: Yes Programmable Cleaning Time: Yes Easy Emptying Feature: Yes Automatic Charging Feature: Yes Accessories: Charging station, Remote control, 2 side brushes, Water tank and cleaning cloth