This is the litter box with multiple sensors that detect when a cat enters and exits, and automatically cleans up after them. An optional free app enables a pet owner to schedule a cleaning as well as monitor deviations from their cat’s normal behavior—indicating the possibility of health issues. When it cleans, the litter box rotates, removing waste into a stored bin underneath that can be easily emptied. It also has an air purification system that helps remove odors, quiet operation comparable to the sound of refrigerator hum, and safety sensors. Compatible with all kinds of litter. AC plug. 20" L x 20" W x 26 1/2" D. (32 lbs.)