Smart App & Alexa & Google Assistant voice control: Use the ProscenicHome App, Alexa or Google Assistant voice commands to control the robot vacuum cleaner from anywhere anytime, schedule cleaning, customize cleaning and monitor the real-time cleaning map, etc. IPNAS 2. 0 Intelligent Cleaning System: The 820S robotic vacuum cleaner has a programmable navigation function that follows a specific logic to ensure that no areas are missed during the cleaning process. Large Capacity Dust Bin: 600ML large dust bin provides longer cleaning sessions, easy to remove, empty and wash. Powerful Suction: With three suction modes to choose from, this robot vacuum uses 1800Pa powerful suction in max setting, making it easy to pick up pet hair, dirt and fine dust from hard floors and carpets. Auto Carpet Boost: Automatically increases suction to the max mode when a carpet is detected, transitions from hard floors to carpets without effort. Selective Mopping Function: The electronically-controlled water tank is sold separately, you can control the speed and volume of the water inside the tank with the tank. Note: The water tank need to purchase separately, it is NOT included in the package. For accessories purchasing needs, please refer to the accessories in Proscenic store, for any product problems please feel free to contact this email: service-us@proscenic. cn