Rotech Smart Robotic Vacuum Cleaner W/remote Control (4-in-1 Series) Vacuuming, Sweeping, Disinfecting, Mopping. Model Rv12, Silver Sensor detects stairs to avoid falling down, Automatically returns to dock for self-recharging when low on battery power Special build-in UV light to kill bacteria, germs, dust mites and allergens on the floor. The only Brand with the Dry Mopping feature, A Small Cloth-Mop will wipe the floor for a complete Cleaning, Ideal for allergens and pet hair Vacuuming with lower noise compared to other Brands 58db level. Package Contents: Rotech Smart 4-in-1 Robotic Vacuum, Home Docking station, Remote Control, Space Isolator, adopter, filter, Cleaning Brush, Cloth-mop, Easy Start Guide and User Manual